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-rw-r--r--pkgs/applications/accessibility/contrast/default.nix2
-rw-r--r--pkgs/applications/accessibility/dasher/default.nix2
-rw-r--r--pkgs/applications/accessibility/mousetweaks/default.nix2
-rw-r--r--pkgs/applications/audio/AMB-plugins/default.nix2
-rw-r--r--pkgs/applications/audio/FIL-plugins/default.nix2
-rw-r--r--pkgs/applications/audio/a2jmidid/default.nix4
-rw-r--r--pkgs/applications/audio/aacgain/default.nix2
-rw-r--r--pkgs/applications/audio/abcde/default.nix2
-rw-r--r--pkgs/applications/audio/airwave/default.nix2
-rw-r--r--pkgs/applications/audio/aj-snapshot/default.nix2
-rw-r--r--pkgs/applications/audio/amarok/default.nix2
-rw-r--r--pkgs/applications/audio/ardour/default.nix2
-rw-r--r--pkgs/applications/audio/ario/default.nix2
-rw-r--r--pkgs/applications/audio/artyFX/default.nix2
-rw-r--r--pkgs/applications/audio/asunder/default.nix2
-rw-r--r--pkgs/applications/audio/audacious/default.nix2
-rw-r--r--pkgs/applications/audio/audacious/qt-5.nix2
-rw-r--r--pkgs/applications/audio/audacity/default.nix2
-rw-r--r--pkgs/applications/audio/audio-recorder/default.nix2
-rw-r--r--pkgs/applications/audio/aumix/default.nix2
-rw-r--r--pkgs/applications/audio/axoloti/default.nix2
-rw-r--r--pkgs/applications/audio/axoloti/dfu-util.nix2
-rw-r--r--pkgs/applications/audio/axoloti/libusb1.nix2
-rw-r--r--pkgs/applications/audio/baudline/default.nix2
-rw-r--r--pkgs/applications/audio/bitmeter/default.nix4
-rw-r--r--pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix2
-rw-r--r--pkgs/applications/audio/bristol/default.nix2
-rw-r--r--pkgs/applications/audio/bs1770gain/default.nix2
-rw-r--r--pkgs/applications/audio/bsequencer/default.nix2
-rw-r--r--pkgs/applications/audio/bshapr/default.nix2
-rw-r--r--pkgs/applications/audio/bslizr/default.nix2
-rw-r--r--pkgs/applications/audio/cadence/default.nix2
-rw-r--r--pkgs/applications/audio/calf/default.nix2
-rw-r--r--pkgs/applications/audio/caps/default.nix2
-rw-r--r--pkgs/applications/audio/carla/default.nix2
-rw-r--r--pkgs/applications/audio/caudec/default.nix2
-rw-r--r--pkgs/applications/audio/cava/default.nix2
-rw-r--r--pkgs/applications/audio/cd-discid/default.nix2
-rw-r--r--pkgs/applications/audio/cdparanoia/default.nix2
-rw-r--r--pkgs/applications/audio/chuck/default.nix2
-rw-r--r--pkgs/applications/audio/clementine/default.nix4
-rw-r--r--pkgs/applications/audio/clerk/default.nix2
-rw-r--r--pkgs/applications/audio/cmus/default.nix2
-rw-r--r--pkgs/applications/audio/cmusfm/default.nix2
-rw-r--r--pkgs/applications/audio/cozy-audiobooks/default.nix2
-rw-r--r--pkgs/applications/audio/crip/default.nix2
-rw-r--r--pkgs/applications/audio/csa/default.nix2
-rw-r--r--pkgs/applications/audio/csound/csound-qt/default.nix2
-rw-r--r--pkgs/applications/audio/csound/default.nix2
-rw-r--r--pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix2
-rw-r--r--pkgs/applications/audio/deadbeef/plugins/infobar.nix2
-rw-r--r--pkgs/applications/audio/deadbeef/plugins/mpris2.nix2
-rw-r--r--pkgs/applications/audio/denemo/default.nix2
-rw-r--r--pkgs/applications/audio/dfasma/default.nix2
-rw-r--r--pkgs/applications/audio/dirt/default.nix2
-rw-r--r--pkgs/applications/audio/distrho/default.nix2
-rw-r--r--pkgs/applications/audio/dr14_tmeter/default.nix2
-rw-r--r--pkgs/applications/audio/dragonfly-reverb/default.nix2
-rw-r--r--pkgs/applications/audio/drumgizmo/default.nix2
-rw-r--r--pkgs/applications/audio/easytag/default.nix2
-rw-r--r--pkgs/applications/audio/ecasound/default.nix2
-rw-r--r--pkgs/applications/audio/eflite/default.nix2
-rw-r--r--pkgs/applications/audio/ensemble-chorus/default.nix2
-rw-r--r--pkgs/applications/audio/eq10q/default.nix4
-rw-r--r--pkgs/applications/audio/espeak/default.nix2
-rw-r--r--pkgs/applications/audio/espeak/edit.nix2
-rw-r--r--pkgs/applications/audio/eteroj.lv2/default.nix2
-rw-r--r--pkgs/applications/audio/faust/faust1.nix4
-rw-r--r--pkgs/applications/audio/faust/faust2.nix4
-rw-r--r--pkgs/applications/audio/faust/faustlive.nix2
-rw-r--r--pkgs/applications/audio/flac/default.nix2
-rw-r--r--pkgs/applications/audio/flac123/default.nix2
-rw-r--r--pkgs/applications/audio/flacon/default.nix2
-rw-r--r--pkgs/applications/audio/fluidsynth/default.nix2
-rw-r--r--pkgs/applications/audio/fmit/default.nix2
-rw-r--r--pkgs/applications/audio/fmsynth/default.nix2
-rw-r--r--pkgs/applications/audio/fomp/default.nix2
-rw-r--r--pkgs/applications/audio/foo-yc20/default.nix2
-rw-r--r--pkgs/applications/audio/freewheeling/default.nix2
-rw-r--r--pkgs/applications/audio/game-music-emu/default.nix2
-rw-r--r--pkgs/applications/audio/gigedit/default.nix2
-rw-r--r--pkgs/applications/audio/gjay/default.nix2
-rw-r--r--pkgs/applications/audio/gmpc/default.nix4
-rw-r--r--pkgs/applications/audio/gmu/default.nix2
-rw-r--r--pkgs/applications/audio/gnome-podcasts/default.nix2
-rw-r--r--pkgs/applications/audio/google-play-music-desktop-player/default.nix2
-rw-r--r--pkgs/applications/audio/gpodder/default.nix2
-rw-r--r--pkgs/applications/audio/gradio/default.nix2
-rw-r--r--pkgs/applications/audio/gtklick/default.nix2
-rw-r--r--pkgs/applications/audio/gtkpod/default.nix2
-rw-r--r--pkgs/applications/audio/guitarix/default.nix2
-rw-r--r--pkgs/applications/audio/gxmatcheq-lv2/default.nix2
-rw-r--r--pkgs/applications/audio/gxplugins-lv2/default.nix2
-rw-r--r--pkgs/applications/audio/helio-workstation/default.nix2
-rw-r--r--pkgs/applications/audio/helm/default.nix2
-rw-r--r--pkgs/applications/audio/hybridreverb2/default.nix2
-rw-r--r--pkgs/applications/audio/hydrogen/default.nix2
-rw-r--r--pkgs/applications/audio/i-score/default.nix2
-rw-r--r--pkgs/applications/audio/iannix/default.nix2
-rw-r--r--pkgs/applications/audio/id3v2/default.nix2
-rw-r--r--pkgs/applications/audio/infamousPlugins/default.nix2
-rw-r--r--pkgs/applications/audio/ingen/default.nix2
-rw-r--r--pkgs/applications/audio/ir.lv2/default.nix2
-rw-r--r--pkgs/applications/audio/jaaa/default.nix2
-rw-r--r--pkgs/applications/audio/jack-capture/default.nix2
-rw-r--r--pkgs/applications/audio/jack-oscrolloscope/default.nix2
-rw-r--r--pkgs/applications/audio/jack-rack/default.nix2
-rw-r--r--pkgs/applications/audio/jackmeter/default.nix2
-rw-r--r--pkgs/applications/audio/jackmix/default.nix4
-rw-r--r--pkgs/applications/audio/jalv/default.nix2
-rw-r--r--pkgs/applications/audio/jamin/default.nix4
-rw-r--r--pkgs/applications/audio/japa/default.nix2
-rw-r--r--pkgs/applications/audio/keyfinder/default.nix2
-rw-r--r--pkgs/applications/audio/kid3/default.nix2
-rw-r--r--pkgs/applications/audio/klick/default.nix2
-rw-r--r--pkgs/applications/audio/ladspa-plugins/default.nix2
-rw-r--r--pkgs/applications/audio/ladspa-sdk/default.nix2
-rw-r--r--pkgs/applications/audio/ladspa-sdk/ladspah.nix2
-rw-r--r--pkgs/applications/audio/lash/default.nix2
-rw-r--r--pkgs/applications/audio/lastfmsubmitd/default.nix2
-rw-r--r--pkgs/applications/audio/linuxband/default.nix2
-rw-r--r--pkgs/applications/audio/linuxsampler/default.nix2
-rw-r--r--pkgs/applications/audio/lmms/default.nix2
-rw-r--r--pkgs/applications/audio/lollypop/default.nix2
-rw-r--r--pkgs/applications/audio/lsp-plugins/default.nix2
-rw-r--r--pkgs/applications/audio/luppp/default.nix2
-rw-r--r--pkgs/applications/audio/lv2bm/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/CompBus/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix2
-rw-r--r--pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix2
-rw-r--r--pkgs/applications/audio/mda-lv2/default.nix2
-rw-r--r--pkgs/applications/audio/meterbridge/default.nix2
-rw-r--r--pkgs/applications/audio/meters_lv2/default.nix2
-rw-r--r--pkgs/applications/audio/mhwaveedit/default.nix2
-rw-r--r--pkgs/applications/audio/mid2key/default.nix2
-rw-r--r--pkgs/applications/audio/midas/m32edit.nix2
-rw-r--r--pkgs/applications/audio/midas/x32edit.nix2
-rw-r--r--pkgs/applications/audio/midisheetmusic/default.nix2
-rw-r--r--pkgs/applications/audio/mikmod/default.nix2
-rw-r--r--pkgs/applications/audio/milkytracker/default.nix2
-rw-r--r--pkgs/applications/audio/mimic/default.nix2
-rw-r--r--pkgs/applications/audio/mimms/default.nix2
-rw-r--r--pkgs/applications/audio/mixxx/default.nix2
-rw-r--r--pkgs/applications/audio/moc/default.nix2
-rw-r--r--pkgs/applications/audio/mod-distortion/default.nix2
-rw-r--r--pkgs/applications/audio/mopidy/gmusic.nix2
-rw-r--r--pkgs/applications/audio/mopidy/iris.nix2
-rw-r--r--pkgs/applications/audio/mopidy/local-images.nix2
-rw-r--r--pkgs/applications/audio/mopidy/local-sqlite.nix2
-rw-r--r--pkgs/applications/audio/mopidy/moped.nix2
-rw-r--r--pkgs/applications/audio/mopidy/mopify.nix2
-rw-r--r--pkgs/applications/audio/mopidy/spotify.nix2
-rw-r--r--pkgs/applications/audio/mp3blaster/default.nix2
-rw-r--r--pkgs/applications/audio/mp3gain/default.nix2
-rw-r--r--pkgs/applications/audio/mp3info/default.nix2
-rw-r--r--pkgs/applications/audio/mp3splt/default.nix2
-rw-r--r--pkgs/applications/audio/mp3val/default.nix2
-rw-r--r--pkgs/applications/audio/mpc/default.nix2
-rw-r--r--pkgs/applications/audio/mpc123/default.nix2
-rw-r--r--pkgs/applications/audio/mpg123/default.nix2
-rw-r--r--pkgs/applications/audio/mpg321/default.nix2
-rw-r--r--pkgs/applications/audio/mup/default.nix2
-rw-r--r--pkgs/applications/audio/musescore/darwin.nix4
-rw-r--r--pkgs/applications/audio/musescore/default.nix4
-rw-r--r--pkgs/applications/audio/musly/default.nix2
-rw-r--r--pkgs/applications/audio/ncmpc/default.nix2
-rw-r--r--pkgs/applications/audio/ncmpcpp/default.nix2
-rw-r--r--pkgs/applications/audio/ncpamixer/default.nix2
-rw-r--r--pkgs/applications/audio/netease-cloud-music/default.nix2
-rw-r--r--pkgs/applications/audio/noise-repellent/default.nix2
-rw-r--r--pkgs/applications/audio/non/default.nix2
-rw-r--r--pkgs/applications/audio/nootka/default.nix2
-rw-r--r--pkgs/applications/audio/nootka/unstable.nix2
-rw-r--r--pkgs/applications/audio/normalize/default.nix2
-rw-r--r--pkgs/applications/audio/nova-filters/default.nix4
-rw-r--r--pkgs/applications/audio/openmpt123/default.nix2
-rw-r--r--pkgs/applications/audio/opus-tools/default.nix2
-rw-r--r--pkgs/applications/audio/opusfile/default.nix2
-rw-r--r--pkgs/applications/audio/pamix/default.nix2
-rw-r--r--pkgs/applications/audio/pamixer/default.nix2
-rw-r--r--pkgs/applications/audio/paprefs/default.nix2
-rw-r--r--pkgs/applications/audio/patchage/default.nix4
-rw-r--r--pkgs/applications/audio/paulstretch/default.nix2
-rw-r--r--pkgs/applications/audio/pavucontrol/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/cyclone/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/helmholtz/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/maxlib/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/mrpeach/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/puremapping/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/timbreid/default.nix2
-rw-r--r--pkgs/applications/audio/pd-plugins/zexy/default.nix2
-rw-r--r--pkgs/applications/audio/petrifoo/default.nix2
-rw-r--r--pkgs/applications/audio/pianobooster/default.nix2
-rw-r--r--pkgs/applications/audio/pithos/default.nix2
-rw-r--r--pkgs/applications/audio/playbar2/default.nix2
-rw-r--r--pkgs/applications/audio/plugin-torture/default.nix2
-rw-r--r--pkgs/applications/audio/pmidi/default.nix2
-rw-r--r--pkgs/applications/audio/ponymix/default.nix2
-rw-r--r--pkgs/applications/audio/praat/default.nix2
-rw-r--r--pkgs/applications/audio/projectm/default.nix4
-rw-r--r--pkgs/applications/audio/puddletag/default.nix2
-rw-r--r--pkgs/applications/audio/pulseaudio-ctl/default.nix2
-rw-r--r--pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix2
-rw-r--r--pkgs/applications/audio/pulseaudio-modules-bt/default.nix2
-rw-r--r--pkgs/applications/audio/pulseeffects/default.nix2
-rw-r--r--pkgs/applications/audio/puredata/default.nix2
-rw-r--r--pkgs/applications/audio/qjackctl/default.nix2
-rw-r--r--pkgs/applications/audio/qmidinet/default.nix2
-rw-r--r--pkgs/applications/audio/qmmp/default.nix2
-rw-r--r--pkgs/applications/audio/qsampler/default.nix2
-rw-r--r--pkgs/applications/audio/qsynth/default.nix2
-rw-r--r--pkgs/applications/audio/qtractor/default.nix2
-rw-r--r--pkgs/applications/audio/qtscrobbler/default.nix2
-rw-r--r--pkgs/applications/audio/quodlibet/default.nix2
-rw-r--r--pkgs/applications/audio/radiotray-ng/default.nix2
-rw-r--r--pkgs/applications/audio/rakarrack/default.nix2
-rw-r--r--pkgs/applications/audio/reaper/default.nix2
-rw-r--r--pkgs/applications/audio/renoise/default.nix2
-rw-r--r--pkgs/applications/audio/rhvoice/default.nix2
-rw-r--r--pkgs/applications/audio/rhythmbox/default.nix2
-rw-r--r--pkgs/applications/audio/rkrlv2/default.nix2
-rw-r--r--pkgs/applications/audio/rosegarden/default.nix2
-rw-r--r--pkgs/applications/audio/schismtracker/default.nix2
-rw-r--r--pkgs/applications/audio/seq24/default.nix2
-rw-r--r--pkgs/applications/audio/shntool/default.nix4
-rw-r--r--pkgs/applications/audio/sidplayfp/default.nix2
-rw-r--r--pkgs/applications/audio/sisco.lv2/default.nix2
-rw-r--r--pkgs/applications/audio/snapcast/default.nix2
-rw-r--r--pkgs/applications/audio/sndpeek/default.nix2
-rw-r--r--pkgs/applications/audio/sonata/default.nix2
-rw-r--r--pkgs/applications/audio/sonic-lineup/default.nix2
-rw-r--r--pkgs/applications/audio/sonic-visualiser/default.nix2
-rw-r--r--pkgs/applications/audio/sooperlooper/default.nix2
-rw-r--r--pkgs/applications/audio/sorcer/default.nix2
-rw-r--r--pkgs/applications/audio/sound-juicer/default.nix2
-rw-r--r--pkgs/applications/audio/soundscape-renderer/default.nix4
-rw-r--r--pkgs/applications/audio/spectmorph/default.nix2
-rw-r--r--pkgs/applications/audio/spectrojack/default.nix2
-rw-r--r--pkgs/applications/audio/speech-denoiser/default.nix2
-rw-r--r--pkgs/applications/audio/spek/default.nix2
-rw-r--r--pkgs/applications/audio/split2flac/default.nix2
-rw-r--r--pkgs/applications/audio/spotify-tui/default.nix2
-rw-r--r--pkgs/applications/audio/spotify/default.nix2
-rw-r--r--pkgs/applications/audio/spotifywm/default.nix2
-rw-r--r--pkgs/applications/audio/squeezelite/default.nix2
-rw-r--r--pkgs/applications/audio/squishyball/default.nix2
-rw-r--r--pkgs/applications/audio/ssrc/default.nix2
-rw-r--r--pkgs/applications/audio/stone-phaser/default.nix2
-rw-r--r--pkgs/applications/audio/streamripper/default.nix2
-rw-r--r--pkgs/applications/audio/svox/default.nix2
-rw-r--r--pkgs/applications/audio/swh-lv2/default.nix2
-rw-r--r--pkgs/applications/audio/tambura/default.nix2
-rw-r--r--pkgs/applications/audio/tetraproc/default.nix2
-rw-r--r--pkgs/applications/audio/timemachine/default.nix2
-rw-r--r--pkgs/applications/audio/tony/default.nix2
-rw-r--r--pkgs/applications/audio/transcode/default.nix2
-rw-r--r--pkgs/applications/audio/transcribe/default.nix2
-rw-r--r--pkgs/applications/audio/tree-from-tags/default.nix2
-rw-r--r--pkgs/applications/audio/uade123/default.nix2
-rw-r--r--pkgs/applications/audio/vcv-rack/default.nix2
-rw-r--r--pkgs/applications/audio/vimpc/default.nix2
-rw-r--r--pkgs/applications/audio/vkeybd/default.nix2
-rw-r--r--pkgs/applications/audio/vocal/default.nix2
-rw-r--r--pkgs/applications/audio/vorbis-tools/default.nix4
-rw-r--r--pkgs/applications/audio/waon/default.nix2
-rw-r--r--pkgs/applications/audio/wavegain/default.nix2
-rw-r--r--pkgs/applications/audio/whipper/default.nix2
-rw-r--r--pkgs/applications/audio/wolf-shaper/default.nix2
-rw-r--r--pkgs/applications/audio/x42-avldrums/default.nix2
-rw-r--r--pkgs/applications/audio/x42-gmsynth/default.nix2
-rw-r--r--pkgs/applications/audio/x42-plugins/default.nix2
-rw-r--r--pkgs/applications/audio/yasr/default.nix2
-rw-r--r--pkgs/applications/audio/ympd/default.nix2
-rw-r--r--pkgs/applications/audio/yoshimi/default.nix2
-rw-r--r--pkgs/applications/audio/zam-plugins/default.nix2
-rw-r--r--pkgs/applications/audio/zita-ajbridge/default.nix2
-rw-r--r--pkgs/applications/audio/zita-at1/default.nix2
-rw-r--r--pkgs/applications/audio/zita-njbridge/default.nix2
-rw-r--r--pkgs/applications/audio/zynaddsubfx/default.nix2
-rw-r--r--pkgs/applications/backup/areca/default.nix2
-rw-r--r--pkgs/applications/blockchains/aeon/default.nix2
-rw-r--r--pkgs/applications/blockchains/bitcoin-classic.nix2
-rw-r--r--pkgs/applications/blockchains/bitcoin-unlimited.nix2
-rw-r--r--pkgs/applications/blockchains/bitcoin.nix2
-rw-r--r--pkgs/applications/blockchains/clightning.nix2
-rw-r--r--pkgs/applications/blockchains/cryptop/default.nix2
-rw-r--r--pkgs/applications/blockchains/dashpay.nix2
-rw-r--r--pkgs/applications/blockchains/dogecoin.nix2
-rw-r--r--pkgs/applications/blockchains/freicoin.nix2
-rw-r--r--pkgs/applications/blockchains/litecoin.nix2
-rw-r--r--pkgs/applications/blockchains/mist.nix2
-rw-r--r--pkgs/applications/blockchains/monero-gui/default.nix2
-rw-r--r--pkgs/applications/blockchains/monero/default.nix2
-rw-r--r--pkgs/applications/blockchains/nano-wallet/default.nix2
-rw-r--r--pkgs/applications/blockchains/parity-ui/default.nix2
-rw-r--r--pkgs/applications/blockchains/particl/particl-core.nix2
-rw-r--r--pkgs/applications/blockchains/pivx.nix2
-rw-r--r--pkgs/applications/blockchains/stellar-core.nix2
-rw-r--r--pkgs/applications/blockchains/wownero.nix2
-rw-r--r--pkgs/applications/display-managers/lightdm-enso-os-greeter/default.nix4
-rw-r--r--pkgs/applications/display-managers/lightdm-mini-greeter/default.nix2
-rw-r--r--pkgs/applications/display-managers/lightdm-tiny-greeter/default.nix2
-rw-r--r--pkgs/applications/display-managers/lightdm/default.nix2
-rw-r--r--pkgs/applications/display-managers/lightdm/gtk-greeter.nix2
-rw-r--r--pkgs/applications/display-managers/ly/default.nix2
-rw-r--r--pkgs/applications/display-managers/sddm/default.nix2
-rw-r--r--pkgs/applications/editors/aewan/default.nix2
-rw-r--r--pkgs/applications/editors/android-studio/common.nix4
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-rw-r--r--pkgs/applications/window-managers/fluxbox/default.nix2
-rw-r--r--pkgs/applications/window-managers/fvwm/default.nix2
-rw-r--r--pkgs/applications/window-managers/herbstluftwm/default.nix2
-rw-r--r--pkgs/applications/window-managers/i3/blocks-gaps.nix2
-rw-r--r--pkgs/applications/window-managers/i3/blocks.nix4
-rw-r--r--pkgs/applications/window-managers/i3/easyfocus.nix2
-rw-r--r--pkgs/applications/window-managers/i3/i3ipc-glib.nix2
-rw-r--r--pkgs/applications/window-managers/i3/layout-manager.nix2
-rw-r--r--pkgs/applications/window-managers/i3/lock-fancy.nix2
-rw-r--r--pkgs/applications/window-managers/i3/lock.nix2
-rw-r--r--pkgs/applications/window-managers/i3/pystatus.nix2
-rw-r--r--pkgs/applications/window-managers/i3/status-rust.nix2
-rw-r--r--pkgs/applications/window-managers/i3/status.nix2
-rw-r--r--pkgs/applications/window-managers/i3/wk-switch.nix2
-rw-r--r--pkgs/applications/window-managers/ion-3/default.nix4
-rw-r--r--pkgs/applications/window-managers/jwm/default.nix2
-rw-r--r--pkgs/applications/window-managers/jwm/jwm-settings-manager.nix2
-rw-r--r--pkgs/applications/window-managers/kbdd/default.nix2
-rw-r--r--pkgs/applications/window-managers/larswm/default.nix4
-rw-r--r--pkgs/applications/window-managers/lemonbar/default.nix2
-rw-r--r--pkgs/applications/window-managers/lemonbar/xft.nix2
-rw-r--r--pkgs/applications/window-managers/neocomp/default.nix2
-rw-r--r--pkgs/applications/window-managers/openbox/default.nix2
-rw-r--r--pkgs/applications/window-managers/oroborus/default.nix2
-rw-r--r--pkgs/applications/window-managers/pekwm/default.nix2
-rw-r--r--pkgs/applications/window-managers/qtile/default.nix2
-rw-r--r--pkgs/applications/window-managers/ratpoison/default.nix2
-rw-r--r--pkgs/applications/window-managers/sawfish/default.nix2
-rw-r--r--pkgs/applications/window-managers/stalonetray/default.nix2
-rw-r--r--pkgs/applications/window-managers/stumpish/default.nix2
-rw-r--r--pkgs/applications/window-managers/stumpwm/default.nix2
-rw-r--r--pkgs/applications/window-managers/sway/default.nix2
-rw-r--r--pkgs/applications/window-managers/tabbed/default.nix4
-rw-r--r--pkgs/applications/window-managers/trayer/default.nix2
-rw-r--r--pkgs/applications/window-managers/vwm/default.nix2
-rw-r--r--pkgs/applications/window-managers/weston/default.nix2
-rw-r--r--pkgs/applications/window-managers/windowmaker/default.nix2
-rw-r--r--pkgs/applications/window-managers/windowmaker/dockapps/alsamixer.app.nix4
-rw-r--r--pkgs/applications/window-managers/windowmaker/dockapps/wmcalclock.nix2
-rw-r--r--pkgs/applications/window-managers/windowmaker/dockapps/wmsm.app.nix4
-rw-r--r--pkgs/applications/window-managers/windowmaker/dockapps/wmsystemtray.nix4
-rw-r--r--pkgs/applications/window-managers/wmii-hg/default.nix4
-rw-r--r--pkgs/applications/window-managers/xmonad/log-applet/default.nix2
-rw-r--r--pkgs/applications/window-managers/yabar/build.nix2
1859 files changed, 2123 insertions, 2123 deletions
diff --git a/pkgs/applications/accessibility/contrast/default.nix b/pkgs/applications/accessibility/contrast/default.nix
index 884cb0ed88d60..673c8071d4b2c 100644
--- a/pkgs/applications/accessibility/contrast/default.nix
+++ b/pkgs/applications/accessibility/contrast/default.nix
@@ -64,7 +64,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Checks whether the contrast between two colors meet the WCAG requirements";
-    homepage = https://gitlab.gnome.org/World/design/contrast;
+    homepage = "https://gitlab.gnome.org/World/design/contrast";
     license = licenses.gpl3;
     maintainers = with maintainers; [ jtojnar ];
   };
diff --git a/pkgs/applications/accessibility/dasher/default.nix b/pkgs/applications/accessibility/dasher/default.nix
index 9e8084e7a87a2..43844d0c66bb2 100644
--- a/pkgs/applications/accessibility/dasher/default.nix
+++ b/pkgs/applications/accessibility/dasher/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation {
   ] ++ lib.optional speechSupport speechd;
 
   meta = {
-    homepage = http://www.inference.org.uk/dasher/;
+    homepage = "http://www.inference.org.uk/dasher/";
     description = "Information-efficient text-entry interface, driven by natural continuous pointing gestures";
     license = lib.licenses.gpl2;
     maintainers = [ lib.maintainers.Profpatsch ];
diff --git a/pkgs/applications/accessibility/mousetweaks/default.nix b/pkgs/applications/accessibility/mousetweaks/default.nix
index e4fd66679a79d..b645bc61848be 100644
--- a/pkgs/applications/accessibility/mousetweaks/default.nix
+++ b/pkgs/applications/accessibility/mousetweaks/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
       The features can be activated and configured through the Universal Access
       panel of the GNOME Control Center.
     '';
-    homepage = https://wiki.gnome.org/Projects/Mousetweaks;
+    homepage = "https://wiki.gnome.org/Projects/Mousetweaks";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.johnazoidberg ];
diff --git a/pkgs/applications/audio/AMB-plugins/default.nix b/pkgs/applications/audio/AMB-plugins/default.nix
index d9a05e0bf6609..2e2af8f3a9a2d 100644
--- a/pkgs/applications/audio/AMB-plugins/default.nix
+++ b/pkgs/applications/audio/AMB-plugins/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       Mono and stereo to B-format panning, horizontal rotator, square, hexagon and cube decoders.
     '';
     version = version;
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/FIL-plugins/default.nix b/pkgs/applications/audio/FIL-plugins/default.nix
index cf383c1dd495e..253e724cd313f 100644
--- a/pkgs/applications/audio/FIL-plugins/default.nix
+++ b/pkgs/applications/audio/FIL-plugins/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
       This should make this plugin a good candidate for use in systems that allow automation of plugin control ports, such as Ardour, or for stage use.
     '';
     version = version;
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/a2jmidid/default.nix b/pkgs/applications/audio/a2jmidid/default.nix
index 2833172004844..64468bddc8529 100644
--- a/pkgs/applications/audio/a2jmidid/default.nix
+++ b/pkgs/applications/audio/a2jmidid/default.nix
@@ -18,11 +18,11 @@ in stdenv.mkDerivation {
 
   patches = [
     (fetchpatch {
-      url = https://repo.or.cz/a2jmidid.git/patch/24e3b8e543256ae8fdfb4b75eb9fd775f07c46e2;
+      url = "https://repo.or.cz/a2jmidid.git/patch/24e3b8e543256ae8fdfb4b75eb9fd775f07c46e2";
       sha256 = "1nxrvnhxlgqc9wbxnp1gnpw4wjyzxvymwcg1gh2nqzmssgfykfkc";
     })
     (fetchpatch {
-      url = https://repo.or.cz/a2jmidid.git/patch/7f82da7eb2f540a94db23331be98d42a58ddc269;
+      url = "https://repo.or.cz/a2jmidid.git/patch/7f82da7eb2f540a94db23331be98d42a58ddc269";
       sha256 = "1nab9zf0agbcj5pvhl90pz0cx1d204d4janqflc5ymjhy8jyrsdv";
     })
   ];
diff --git a/pkgs/applications/audio/aacgain/default.nix b/pkgs/applications/audio/aacgain/default.nix
index 5892351225d31..194514c65b535 100644
--- a/pkgs/applications/audio/aacgain/default.nix
+++ b/pkgs/applications/audio/aacgain/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "ReplayGain for AAC files";
-    homepage = https://aacgain.altosdesign.com;
+    homepage = "https://aacgain.altosdesign.com";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.robbinch ];
diff --git a/pkgs/applications/audio/abcde/default.nix b/pkgs/applications/audio/abcde/default.nix
index adb38d4bbbabe..4cb28e512a72c 100644
--- a/pkgs/applications/audio/abcde/default.nix
+++ b/pkgs/applications/audio/abcde/default.nix
@@ -46,7 +46,7 @@ in
     '';
 
     meta = with stdenv.lib; {
-      homepage = http://abcde.einval.com/wiki/;
+      homepage = "http://abcde.einval.com/wiki/";
       license = licenses.gpl2Plus;
       maintainers = with maintainers; [ gebner ];
       description = "Command-line audio CD ripper";
diff --git a/pkgs/applications/audio/airwave/default.nix b/pkgs/applications/audio/airwave/default.nix
index 1d91ad4d2be19..176d1d4cfb37e 100644
--- a/pkgs/applications/audio/airwave/default.nix
+++ b/pkgs/applications/audio/airwave/default.nix
@@ -83,7 +83,7 @@ multiStdenv.mkDerivation {
       protocol to correctly embed the plugin editor into the host
       window.
     '';
-    homepage = https://github.com/phantom-code/airwave;
+    homepage = "https://github.com/phantom-code/airwave";
     license = licenses.mit;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ michalrus ];
diff --git a/pkgs/applications/audio/aj-snapshot/default.nix b/pkgs/applications/audio/aj-snapshot/default.nix
index 5c379b57ad6a3..f781aad905d07 100644
--- a/pkgs/applications/audio/aj-snapshot/default.nix
+++ b/pkgs/applications/audio/aj-snapshot/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
     You can also run aj-snapshot in daemon mode if you want to have your connections continually restored.
     '';
 
-    homepage = http://aj-snapshot.sourceforge.net/;
+    homepage = "http://aj-snapshot.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = [ maintainers.mrVanDalo ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/amarok/default.nix b/pkgs/applications/audio/amarok/default.nix
index cd951701e7714..25fceb357cc5a 100644
--- a/pkgs/applications/audio/amarok/default.nix
+++ b/pkgs/applications/audio/amarok/default.nix
@@ -14,7 +14,7 @@ mkDerivation rec {
     # master has the Qt5 version as of April 2018 but a formal release has not
     # yet been made so change this back to the proper upstream when such a
     # release is out
-    url    = git://anongit.kde.org/amarok.git;
+    url    = "git://anongit.kde.org/amarok.git";
     # url = "mirror://kde/stable/${pname}/${version}/src/${name}.tar.xz";
     rev    = "457fbda25a85a102bfda92aa7137e7ef5e4c8b00";
     sha256 = "1ig2mg8pqany6m2zplkrvldcv4ibxwsypnyv5igm7nz7ax82cd5j";
diff --git a/pkgs/applications/audio/ardour/default.nix b/pkgs/applications/audio/ardour/default.nix
index c1749029cdc9c..8c55c29b52735 100644
--- a/pkgs/applications/audio/ardour/default.nix
+++ b/pkgs/applications/audio/ardour/default.nix
@@ -83,7 +83,7 @@ stdenv.mkDerivation rec {
       Please consider supporting the ardour project financially:
       https://community.ardour.org/node/8288
     '';
-    homepage = http://ardour.org/;
+    homepage = "http://ardour.org/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu maintainers.fps ];
diff --git a/pkgs/applications/audio/ario/default.nix b/pkgs/applications/audio/ario/default.nix
index 4b48f5f1eea2c..99a09e7ee3300 100644
--- a/pkgs/applications/audio/ario/default.nix
+++ b/pkgs/applications/audio/ario/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "GTK client for MPD (Music player daemon)";
-    homepage = http://ario-player.sourceforge.net/;
+    homepage = "http://ario-player.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.garrison ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/audio/artyFX/default.nix b/pkgs/applications/audio/artyFX/default.nix
index 4b76ebdf60532..0265e0f75ecb9 100644
--- a/pkgs/applications/audio/artyFX/default.nix
+++ b/pkgs/applications/audio/artyFX/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cairomm cmake libjack2 libpthreadstubs libXdmcp libxshmfence libsndfile lv2 ntk   ];
 
   meta = with stdenv.lib; {
-    homepage = http://openavproductions.com/artyfx/;
+    homepage = "http://openavproductions.com/artyfx/";
     description = "A LV2 plugin bundle of artistic realtime effects";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/asunder/default.nix b/pkgs/applications/audio/asunder/default.nix
index 5a0b6797a2417..7d90ac36f3660 100644
--- a/pkgs/applications/audio/asunder/default.nix
+++ b/pkgs/applications/audio/asunder/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A graphical Audio CD ripper and encoder for Linux";
-    homepage = http://littlesvr.ca/asunder/index.php;
+    homepage = "http://littlesvr.ca/asunder/index.php";
     license = licenses.gpl2;
     maintainers = with maintainers; [ mudri ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/audacious/default.nix b/pkgs/applications/audio/audacious/default.nix
index 12e8237d4857d..b06175f37f315 100644
--- a/pkgs/applications/audio/audacious/default.nix
+++ b/pkgs/applications/audio/audacious/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Audio player";
-    homepage = https://audacious-media-player.org/;
+    homepage = "https://audacious-media-player.org/";
     maintainers = with maintainers; [ eelco ramkromberg ];
     platforms = with platforms; linux;
     license = with licenses; [
diff --git a/pkgs/applications/audio/audacious/qt-5.nix b/pkgs/applications/audio/audacious/qt-5.nix
index baf7b108e5047..45525571a646b 100644
--- a/pkgs/applications/audio/audacious/qt-5.nix
+++ b/pkgs/applications/audio/audacious/qt-5.nix
@@ -81,7 +81,7 @@ mkDerivation {
 
   meta = with lib; {
     description = "Audio player";
-    homepage = https://audacious-media-player.org/;
+    homepage = "https://audacious-media-player.org/";
     maintainers = with maintainers; [ ttuegel ];
     platforms = with platforms; linux;
     license = with licenses; [
diff --git a/pkgs/applications/audio/audacity/default.nix b/pkgs/applications/audio/audacity/default.nix
index 57e0c52e64061..a1f4b9ad950a9 100644
--- a/pkgs/applications/audio/audacity/default.nix
+++ b/pkgs/applications/audio/audacity/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Sound editor with graphical UI";
-    homepage = http://audacityteam.org/;
+    homepage = "http://audacityteam.org/";
     license = licenses.gpl2Plus;
     platforms = intersectLists platforms.linux platforms.x86; # fails on ARM
     maintainers = with maintainers; [ the-kenny ];
diff --git a/pkgs/applications/audio/audio-recorder/default.nix b/pkgs/applications/audio/audio-recorder/default.nix
index 534b87e9fa743..eee293b76c2f9 100644
--- a/pkgs/applications/audio/audio-recorder/default.nix
+++ b/pkgs/applications/audio/audio-recorder/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
       automatically record your Skype calls. It supports several audio (output)
       formats such as OGG audio, Flac, MP3 and WAV.
     '';
-    homepage = https://launchpad.net/~audio-recorder;
+    homepage = "https://launchpad.net/~audio-recorder";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.msteen ];
diff --git a/pkgs/applications/audio/aumix/default.nix b/pkgs/applications/audio/aumix/default.nix
index db5f081c4ed49..5bc7f84325824 100644
--- a/pkgs/applications/audio/aumix/default.nix
+++ b/pkgs/applications/audio/aumix/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
       Aumix adjusts an audio mixer from X, the console, a terminal,
       the command line or a script.
     '';
-    homepage = http://www.jpj.net/~trevor/aumix.html;
+    homepage = "http://www.jpj.net/~trevor/aumix.html";
     license = stdenv.lib.licenses.gpl2Plus;
 
     maintainers = [ ];
diff --git a/pkgs/applications/audio/axoloti/default.nix b/pkgs/applications/audio/axoloti/default.nix
index fb9b3c9513f8d..3d907e421b3e3 100644
--- a/pkgs/applications/audio/axoloti/default.nix
+++ b/pkgs/applications/audio/axoloti/default.nix
@@ -88,7 +88,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.axoloti.com;
+    homepage = "http://www.axoloti.com";
     description = ''
       Sketching embedded digital audio algorithms.
 
diff --git a/pkgs/applications/audio/axoloti/dfu-util.nix b/pkgs/applications/audio/axoloti/dfu-util.nix
index e9fa6daecfe39..80ec696c64594 100644
--- a/pkgs/applications/audio/axoloti/dfu-util.nix
+++ b/pkgs/applications/audio/axoloti/dfu-util.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
       phones. With dfu-util you are able to download firmware to your device or
       upload firmware from it.
     '';
-    homepage = http://dfu-util.sourceforge.net;
+    homepage = "http://dfu-util.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.unix;
     maintainers = [ ];
diff --git a/pkgs/applications/audio/axoloti/libusb1.nix b/pkgs/applications/audio/axoloti/libusb1.nix
index 1a6ebd346ccab..49b788f66537c 100644
--- a/pkgs/applications/audio/axoloti/libusb1.nix
+++ b/pkgs/applications/audio/axoloti/libusb1.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.libusb.info;
+    homepage = "http://www.libusb.info";
     description = "User-space USB library";
     platforms = platforms.unix;
     license = licenses.lgpl21;
diff --git a/pkgs/applications/audio/baudline/default.nix b/pkgs/applications/audio/baudline/default.nix
index c35df95b24c70..0d95675d1e67a 100644
--- a/pkgs/applications/audio/baudline/default.nix
+++ b/pkgs/applications/audio/baudline/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
       displays, and continuous capture tools for hunting down and studying
       elusive signal characteristics.
     '';
-    homepage = http://www.baudline.com/;
+    homepage = "http://www.baudline.com/";
     # See http://www.baudline.com/faq.html#licensing_terms.
     # (Do NOT (re)distribute on hydra.)
     license = licenses.unfree;
diff --git a/pkgs/applications/audio/bitmeter/default.nix b/pkgs/applications/audio/bitmeter/default.nix
index 6f471f3a02839..ac05a9367cc99 100644
--- a/pkgs/applications/audio/bitmeter/default.nix
+++ b/pkgs/applications/audio/bitmeter/default.nix
@@ -14,13 +14,13 @@ stdenv.mkDerivation rec {
 
   patches = [
     (fetchurl {
-      url = https://gitweb.gentoo.org/repo/gentoo.git/plain/media-sound/bitmeter/files/bitmeter-1.2-fix-build-system.patch;
+      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/media-sound/bitmeter/files/bitmeter-1.2-fix-build-system.patch";
       sha256 = "021mz6933iw7mpk6b9cbjr8naj6smbq1hwqjszlyx72qbwrrid7k";
     })
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://devel.tlrmx.org/audio/bitmeter/;
+    homepage = "http://devel.tlrmx.org/audio/bitmeter/";
     description = "Also known as jack bitscope. Useful to detect denormals";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix b/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix
index 8358684719060..910c1cfe51b54 100644
--- a/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix
+++ b/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix
@@ -90,7 +90,7 @@ stdenv.mkDerivation rec {
       production, performance and DJing, with a focus on flexible
       editing tools and a super-fast workflow.
     '';
-    homepage = https://www.bitwig.com/;
+    homepage = "https://www.bitwig.com/";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ michalrus mrVanDalo ];
diff --git a/pkgs/applications/audio/bristol/default.nix b/pkgs/applications/audio/bristol/default.nix
index 504900d65955b..704b888e22932 100644
--- a/pkgs/applications/audio/bristol/default.nix
+++ b/pkgs/applications/audio/bristol/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "A range of synthesiser, electric piano and organ emulations";
-    homepage = http://bristol.sourceforge.net;
+    homepage = "http://bristol.sourceforge.net";
     license = licenses.gpl3;
     platforms = ["x86_64-linux" "i686-linux"];
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/bs1770gain/default.nix b/pkgs/applications/audio/bs1770gain/default.nix
index 2dee463aeee23..76a789356193b 100644
--- a/pkgs/applications/audio/bs1770gain/default.nix
+++ b/pkgs/applications/audio/bs1770gain/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A audio/video loudness scanner implementing ITU-R BS.1770";
     license = licenses.gpl2Plus;
-    homepage = http://bs1770gain.sourceforge.net/;
+    homepage = "http://bs1770gain.sourceforge.net/";
     platforms = platforms.all;
   };
 }
diff --git a/pkgs/applications/audio/bsequencer/default.nix b/pkgs/applications/audio/bsequencer/default.nix
index b91554f5716e7..e63124e854793 100644
--- a/pkgs/applications/audio/bsequencer/default.nix
+++ b/pkgs/applications/audio/bsequencer/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sjaehn/BSEQuencer;
+    homepage = "https://github.com/sjaehn/BSEQuencer";
     description = "Multi channel MIDI step sequencer LV2 plugin";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/bshapr/default.nix b/pkgs/applications/audio/bshapr/default.nix
index d2206cf93b5ed..a2f96bc288c95 100644
--- a/pkgs/applications/audio/bshapr/default.nix
+++ b/pkgs/applications/audio/bshapr/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sjaehn/BShapr;
+    homepage = "https://github.com/sjaehn/BShapr";
     description = "Beat / envelope shaper LV2 plugin";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/bslizr/default.nix b/pkgs/applications/audio/bslizr/default.nix
index 97a9d60ec277d..d97381a7a069e 100644
--- a/pkgs/applications/audio/bslizr/default.nix
+++ b/pkgs/applications/audio/bslizr/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sjaehn/BSlizr;
+    homepage = "https://github.com/sjaehn/BSlizr";
     description = "Sequenced audio slicing effect LV2 plugin (step sequencer effect)";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/cadence/default.nix b/pkgs/applications/audio/cadence/default.nix
index 7aa2872224d77..4f4ad4b8c5b03 100644
--- a/pkgs/applications/audio/cadence/default.nix
+++ b/pkgs/applications/audio/cadence/default.nix
@@ -91,7 +91,7 @@ mkDerivation rec {
   '') scriptAndSource;
 
   meta = {
-    homepage = https://github.com/falkTX/Cadence/;
+    homepage = "https://github.com/falkTX/Cadence/";
     description = "Collection of tools useful for audio production";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ genesis worldofpeace ];
diff --git a/pkgs/applications/audio/calf/default.nix b/pkgs/applications/audio/calf/default.nix
index 0106e8b45846b..bbeef4c395a2b 100644
--- a/pkgs/applications/audio/calf/default.nix
+++ b/pkgs/applications/audio/calf/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://calf-studio-gear.org;
+    homepage = "http://calf-studio-gear.org";
     description = "A set of high quality open source audio plugins for musicians";
     license = licenses.lgpl2;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/caps/default.nix b/pkgs/applications/audio/caps/default.nix
index eabbf86683752..dc8511bf5007e 100644
--- a/pkgs/applications/audio/caps/default.nix
+++ b/pkgs/applications/audio/caps/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       considerations are latency-free realtime operation, modesty of
       resource demands and meaningful control interfaces.
     '';
-    homepage = http://www.quitte.de/dsp/caps.html;
+    homepage = "http://www.quitte.de/dsp/caps.html";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.astsmtl ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/carla/default.nix b/pkgs/applications/audio/carla/default.nix
index 6641e99e49174..2b794b98f88b6 100644
--- a/pkgs/applications/audio/carla/default.nix
+++ b/pkgs/applications/audio/carla/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://kxstudio.sf.net/carla;
+    homepage = "http://kxstudio.sf.net/carla";
     description = "An audio plugin host";
     longDescription = ''
       It currently supports LADSPA (including LRDF), DSSI, LV2, VST2/3
diff --git a/pkgs/applications/audio/caudec/default.nix b/pkgs/applications/audio/caudec/default.nix
index 1ab39311258b9..c953909586374 100644
--- a/pkgs/applications/audio/caudec/default.nix
+++ b/pkgs/applications/audio/caudec/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   '';
 
    meta = with stdenv.lib; {
-    homepage = http://caudec.net/;
+    homepage = "http://caudec.net/";
     description = "A multiprocess audio converter that supports many formats (FLAC, MP3, Ogg Vorbis, Windows codecs and many more)";
     license     = licenses.gpl3;
     platforms   = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/audio/cava/default.nix b/pkgs/applications/audio/cava/default.nix
index 5c5c262056ec6..2bdca386bf456 100644
--- a/pkgs/applications/audio/cava/default.nix
+++ b/pkgs/applications/audio/cava/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Console-based Audio Visualizer for Alsa";
-    homepage = https://github.com/karlstav/cava;
+    homepage = "https://github.com/karlstav/cava";
     license = licenses.mit;
     maintainers = with maintainers; [ offline mirrexagon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/cd-discid/default.nix b/pkgs/applications/audio/cd-discid/default.nix
index 864e04d88f3c2..2ceb5f6d09a2e 100644
--- a/pkgs/applications/audio/cd-discid/default.nix
+++ b/pkgs/applications/audio/cd-discid/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional stdenv.isDarwin IOKit;
 
   meta = with stdenv.lib; {
-    homepage = http://linukz.org/cd-discid.shtml;
+    homepage = "http://linukz.org/cd-discid.shtml";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.rycee ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/cdparanoia/default.nix b/pkgs/applications/audio/cdparanoia/default.nix
index 4e517ee636e81..0658305723c4e 100644
--- a/pkgs/applications/audio/cdparanoia/default.nix
+++ b/pkgs/applications/audio/cdparanoia/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://xiph.org/paranoia;
+    homepage = "https://xiph.org/paranoia";
     description = "A tool and library for reading digital audio from CDs";
     license = with licenses; [ gpl2Plus lgpl21Plus ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/chuck/default.nix b/pkgs/applications/audio/chuck/default.nix
index 04b31ae2c0b32..6970296cbd99c 100644
--- a/pkgs/applications/audio/chuck/default.nix
+++ b/pkgs/applications/audio/chuck/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Programming language for real-time sound synthesis and music creation";
-    homepage = http://chuck.cs.princeton.edu;
+    homepage = "http://chuck.cs.princeton.edu";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = with maintainers; [ ftrvxmtrx ];
diff --git a/pkgs/applications/audio/clementine/default.nix b/pkgs/applications/audio/clementine/default.nix
index 479f2a16fd8a1..4a32b099d15b5 100644
--- a/pkgs/applications/audio/clementine/default.nix
+++ b/pkgs/applications/audio/clementine/default.nix
@@ -91,7 +91,7 @@ let
     '';
 
     meta = with stdenv.lib; {
-      homepage = http://www.clementine-player.org;
+      homepage = "http://www.clementine-player.org";
       description = "A multiplatform music player";
       license = licenses.gpl3Plus;
       platforms = platforms.linux;
@@ -130,7 +130,7 @@ let
     '';
     enableParallelBuilding = true;
     meta = with stdenv.lib; {
-      homepage = http://www.clementine-player.org;
+      homepage = "http://www.clementine-player.org";
       description = "Spotify integration for Clementine";
       # The blob itself is Apache-licensed, although libspotify is unfree.
       license = licenses.asl20;
diff --git a/pkgs/applications/audio/clerk/default.nix b/pkgs/applications/audio/clerk/default.nix
index 4da2228c6c130..3c78295db6745 100644
--- a/pkgs/applications/audio/clerk/default.nix
+++ b/pkgs/applications/audio/clerk/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An MPD client built on top of rofi";
-    homepage    = https://github.com/carnager/clerk;
+    homepage    = "https://github.com/carnager/clerk";
     license     = licenses.mit;
     maintainers = with maintainers; [ anderspapitto ];
   };
diff --git a/pkgs/applications/audio/cmus/default.nix b/pkgs/applications/audio/cmus/default.nix
index 023e35bd78707..3e5916ba0983e 100644
--- a/pkgs/applications/audio/cmus/default.nix
+++ b/pkgs/applications/audio/cmus/default.nix
@@ -128,7 +128,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Small, fast and powerful console music player for Linux and *BSD";
-    homepage = https://cmus.github.io/;
+    homepage = "https://cmus.github.io/";
     license = licenses.gpl2;
     maintainers = [ maintainers.oxij ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/audio/cmusfm/default.nix b/pkgs/applications/audio/cmusfm/default.nix
index 54f1050da466e..6695b9a7237ce 100644
--- a/pkgs/applications/audio/cmusfm/default.nix
+++ b/pkgs/applications/audio/cmusfm/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
       + run `cmusfm init` to generate configuration file under ~/.config/cmus/cmusfm.conf
       + Inside cmus run `:set status_display_program=cmusfm` to set up cmusfm
     '';
-    homepage = https://github.com/Arkq/cmusfm/;
+    homepage = "https://github.com/Arkq/cmusfm/";
     maintainers = with stdenv.lib.maintainers; [ CharlesHD ];
     license = licenses.gpl3Plus;
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/audio/cozy-audiobooks/default.nix b/pkgs/applications/audio/cozy-audiobooks/default.nix
index 865bc130db915..a5947bd37f19a 100644
--- a/pkgs/applications/audio/cozy-audiobooks/default.nix
+++ b/pkgs/applications/audio/cozy-audiobooks/default.nix
@@ -75,7 +75,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A modern audio book player for Linux using GTK 3";
-    homepage = https://cozy.geigi.de/;
+    homepage = "https://cozy.geigi.de/";
     maintainers = [ maintainers.makefu ];
     license = licenses.gpl3;
   };
diff --git a/pkgs/applications/audio/crip/default.nix b/pkgs/applications/audio/crip/default.nix
index f7bf919c22129..0181ede26dda0 100644
--- a/pkgs/applications/audio/crip/default.nix
+++ b/pkgs/applications/audio/crip/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://bach.dynet.com/crip/;
+    homepage = "http://bach.dynet.com/crip/";
     description = "Terminal-based ripper/encoder/tagger tool for creating Ogg Vorbis/FLAC files";
     license = stdenv.lib.licenses.gpl1;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/csa/default.nix b/pkgs/applications/audio/csa/default.nix
index 0b8afada0206f..756c21892fb28 100644
--- a/pkgs/applications/audio/csa/default.nix
+++ b/pkgs/applications/audio/csa/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   postInstall = "rm $out/lib/ladspa/celllm_3890.*";
 
   meta = with stdenv.lib; {
-    homepage = https://sourceforge.net/projects/csa/;
+    homepage = "https://sourceforge.net/projects/csa/";
     description = "A group of LADSPA Audio plugins for FM broadcast and more";
     longDescription = ''
       CSA means : Contrôle Signal Audio.
diff --git a/pkgs/applications/audio/csound/csound-qt/default.nix b/pkgs/applications/audio/csound/csound-qt/default.nix
index d16d933182163..895609d3c0232 100644
--- a/pkgs/applications/audio/csound/csound-qt/default.nix
+++ b/pkgs/applications/audio/csound/csound-qt/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "CsoundQt is a frontend for Csound with editor, integrated help, widgets and other features.";
-    homepage = https://csoundqt.github.io/;
+    homepage = "https://csoundqt.github.io/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ hlolli ];
diff --git a/pkgs/applications/audio/csound/default.nix b/pkgs/applications/audio/csound/default.nix
index 758448c2fb33b..4b426609fea47 100644
--- a/pkgs/applications/audio/csound/default.nix
+++ b/pkgs/applications/audio/csound/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Sound design, audio synthesis, and signal processing system, providing facilities for music composition and performance on all major operating systems and platforms";
-    homepage = http://www.csounds.com/;
+    homepage = "http://www.csounds.com/";
     license = licenses.gpl2;
     maintainers = [maintainers.marcweber];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix b/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix
index b26360f0c469b..337d570a93535 100644
--- a/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Plug-in that adds GTK 3 header bar to the DeaDBeeF music player";
-    homepage = https://github.com/saivert/ddb_misc_headerbar_GTK3;
+    homepage = "https://github.com/saivert/ddb_misc_headerbar_GTK3";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.jtojnar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/deadbeef/plugins/infobar.nix b/pkgs/applications/audio/deadbeef/plugins/infobar.nix
index 8a81101983f7b..294d3a0ad8bf1 100644
--- a/pkgs/applications/audio/deadbeef/plugins/infobar.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/infobar.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     broken = true; # crashes DeaDBeeF and is abandoned (https://bitbucket.org/dsimbiriatin/deadbeef-infobar/issues/38/infobar-causes-deadbeef-180-to-crash)
     description = "DeaDBeeF Infobar Plugin";
-    homepage = https://bitbucket.org/dsimbiriatin/deadbeef-infobar;
+    homepage = "https://bitbucket.org/dsimbiriatin/deadbeef-infobar";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.jtojnar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/deadbeef/plugins/mpris2.nix b/pkgs/applications/audio/deadbeef/plugins/mpris2.nix
index 5b27f3c3f3235..95606a869b7f1 100644
--- a/pkgs/applications/audio/deadbeef/plugins/mpris2.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/mpris2.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "MPRISv2 plugin for the DeaDBeeF music player";
-    homepage = https://github.com/Serranya/deadbeef-mpris2-plugin/;
+    homepage = "https://github.com/Serranya/deadbeef-mpris2-plugin/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.abbradar ];
diff --git a/pkgs/applications/audio/denemo/default.nix b/pkgs/applications/audio/denemo/default.nix
index f3adec4fece22..1438b066061d1 100644
--- a/pkgs/applications/audio/denemo/default.nix
+++ b/pkgs/applications/audio/denemo/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software used with lilypond";
-    homepage = http://denemo.org;
+    homepage = "http://denemo.org";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.olynch ];
diff --git a/pkgs/applications/audio/dfasma/default.nix b/pkgs/applications/audio/dfasma/default.nix
index 1785ca60060c7..7965cbd83fdbe 100644
--- a/pkgs/applications/audio/dfasma/default.nix
+++ b/pkgs/applications/audio/dfasma/default.nix
@@ -59,7 +59,7 @@ in stdenv.mkDerivation rec {
       there are basic functionalities to align the signals in time and
       amplitude, this software does not aim to be an audio editor.
     '';
-    homepage = http://gillesdegottex.github.io/dfasma/;
+    homepage = "http://gillesdegottex.github.io/dfasma/";
     license = [ licenses.gpl3Plus reaperFork.meta.license ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/dirt/default.nix b/pkgs/applications/audio/dirt/default.nix
index 1fcdda4089666..5e0cf3616fe53 100644
--- a/pkgs/applications/audio/dirt/default.nix
+++ b/pkgs/applications/audio/dirt/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An unimpressive thingie for playing bits of samples with some level of accuracy";
-    homepage = https://github.com/tidalcycles/Dirt;
+    homepage = "https://github.com/tidalcycles/Dirt";
     license = licenses.gpl3;
     maintainers = with maintainers; [ anderspapitto ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/audio/distrho/default.nix b/pkgs/applications/audio/distrho/default.nix
index 36f7dcc5993fe..0f651f47a4884 100644
--- a/pkgs/applications/audio/distrho/default.nix
+++ b/pkgs/applications/audio/distrho/default.nix
@@ -40,7 +40,7 @@ in stdenv.mkDerivation rec {
   makeFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = http://distrho.sourceforge.net;
+    homepage = "http://distrho.sourceforge.net";
     description = "A collection of cross-platform audio effects and plugins";
     longDescription = ''
       Includes:
diff --git a/pkgs/applications/audio/dr14_tmeter/default.nix b/pkgs/applications/audio/dr14_tmeter/default.nix
index ea0ce8cb5f30d..fbf25384eef2b 100644
--- a/pkgs/applications/audio/dr14_tmeter/default.nix
+++ b/pkgs/applications/audio/dr14_tmeter/default.nix
@@ -23,7 +23,7 @@ python3Packages.buildPythonApplication rec {
   meta = with stdenv.lib; {
     description = "Compute the DR14 of a given audio file according to the procedure described by the Pleasurize Music Foundation";
     license = licenses.gpl3Plus;
-    homepage = http://dr14tmeter.sourceforge.net/;
+    homepage = "http://dr14tmeter.sourceforge.net/";
     maintainers = [ maintainers.adisbladis ];
   };
 }
diff --git a/pkgs/applications/audio/dragonfly-reverb/default.nix b/pkgs/applications/audio/dragonfly-reverb/default.nix
index 1ce7115ad85b4..99c07ba8f5fed 100644
--- a/pkgs/applications/audio/dragonfly-reverb/default.nix
+++ b/pkgs/applications/audio/dragonfly-reverb/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/michaelwillis/dragonfly-reverb;
+    homepage = "https://github.com/michaelwillis/dragonfly-reverb";
     description = "A hall-style reverb based on freeverb3 algorithms";
     maintainers = [ maintainers.magnetophon ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/audio/drumgizmo/default.nix b/pkgs/applications/audio/drumgizmo/default.nix
index 2581f223c91d7..454befd55f9d5 100644
--- a/pkgs/applications/audio/drumgizmo/default.nix
+++ b/pkgs/applications/audio/drumgizmo/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An LV2 sample based drum plugin";
-    homepage = https://www.drumgizmo.org;
+    homepage = "https://www.drumgizmo.org";
     license = licenses.lgpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu maintainers.nico202 ];
diff --git a/pkgs/applications/audio/easytag/default.nix b/pkgs/applications/audio/easytag/default.nix
index 4c2b97e727f47..3f294342da70f 100644
--- a/pkgs/applications/audio/easytag/default.nix
+++ b/pkgs/applications/audio/easytag/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "View and edit tags for various audio files";
-    homepage = https://wiki.gnome.org/Apps/EasyTAG;
+    homepage = "https://wiki.gnome.org/Apps/EasyTAG";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/ecasound/default.nix b/pkgs/applications/audio/ecasound/default.nix
index c17f6b745b37d..13c48fc12af31 100644
--- a/pkgs/applications/audio/ecasound/default.nix
+++ b/pkgs/applications/audio/ecasound/default.nix
@@ -27,6 +27,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Ecasound is a software package designed for multitrack audio processing";
     license = with stdenv.lib.licenses;  [ gpl2 lgpl21 ];
-    homepage = http://nosignal.fi/ecasound/;
+    homepage = "http://nosignal.fi/ecasound/";
   };
 }
diff --git a/pkgs/applications/audio/eflite/default.nix b/pkgs/applications/audio/eflite/default.nix
index 2338c0ed376e9..f9a579512caba 100644
--- a/pkgs/applications/audio/eflite/default.nix
+++ b/pkgs/applications/audio/eflite/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
   CFLAGS = stdenv.lib.optionalString debug " -DDEBUG=2";
 
   meta = {
-    homepage = http://eflite.sourceforge.net;
+    homepage = "http://eflite.sourceforge.net";
     description = "EFlite is a speech server for screen readers";
     longDescription = ''
       EFlite is a speech server for Emacspeak and other screen
diff --git a/pkgs/applications/audio/ensemble-chorus/default.nix b/pkgs/applications/audio/ensemble-chorus/default.nix
index 5940203d04d17..e2413a4fe87f1 100644
--- a/pkgs/applications/audio/ensemble-chorus/default.nix
+++ b/pkgs/applications/audio/ensemble-chorus/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jpcima/ensemble-chorus;
+    homepage = "https://github.com/jpcima/ensemble-chorus";
     description = "Digital model of electronic string ensemble chorus";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/eq10q/default.nix b/pkgs/applications/audio/eq10q/default.nix
index b4ad150532049..cc3a3c9ac1f56 100644
--- a/pkgs/applications/audio/eq10q/default.nix
+++ b/pkgs/applications/audio/eq10q/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   patches = [
     (fetchpatch {
       # glibc 2.27 compatibility
-      url = https://sources.debian.org/data/main/e/eq10q/2.2~repack0-2.1/debian/patches/05-pow10.patch;
+      url = "https://sources.debian.org/data/main/e/eq10q/2.2~repack0-2.1/debian/patches/05-pow10.patch";
       sha256 = "07b0wf6k4xqgigv4h095bzfaw8r218wa36r9w1817jcys13r6c5r";
     })
   ];
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
       64 bits floating point internal audio processing.
       Nice GUI with powerful metering for every plugin.
     '';
-    homepage = http://eq10q.sourceforge.net/;
+    homepage = "http://eq10q.sourceforge.net/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/espeak/default.nix b/pkgs/applications/audio/espeak/default.nix
index 6b5101b50b5a2..aa68fd5363d63 100644
--- a/pkgs/applications/audio/espeak/default.nix
+++ b/pkgs/applications/audio/espeak/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Compact open source software speech synthesizer";
-    homepage = http://espeak.sourceforge.net/;
+    homepage = "http://espeak.sourceforge.net/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/espeak/edit.nix b/pkgs/applications/audio/espeak/edit.nix
index 8d7db50fd3234..6bcffcbc5c346 100644
--- a/pkgs/applications/audio/espeak/edit.nix
+++ b/pkgs/applications/audio/espeak/edit.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Phoneme editor for espeak";
-    homepage = http://espeak.sourceforge.net/;
+    homepage = "http://espeak.sourceforge.net/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/eteroj.lv2/default.nix b/pkgs/applications/audio/eteroj.lv2/default.nix
index bbfe1ad5623f3..c86e7b5e9ba19 100644
--- a/pkgs/applications/audio/eteroj.lv2/default.nix
+++ b/pkgs/applications/audio/eteroj.lv2/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "OSC injection/ejection from/to UDP/TCP/Serial for LV2";
-    homepage = https://open-music-kontrollers.ch/lv2/eteroj;
+    homepage = "https://open-music-kontrollers.ch/lv2/eteroj";
     license = licenses.artistic2;
     maintainers = with maintainers; [ magnetophon ];
   };
diff --git a/pkgs/applications/audio/faust/faust1.nix b/pkgs/applications/audio/faust/faust1.nix
index 687608b435246..64b8e72443115 100644
--- a/pkgs/applications/audio/faust/faust1.nix
+++ b/pkgs/applications/audio/faust/faust1.nix
@@ -17,8 +17,8 @@ let
   };
 
   meta = with stdenv.lib; {
-    homepage = http://faust.grame.fr/;
-    downloadPage = https://sourceforge.net/projects/faudiostream/files/;
+    homepage = "http://faust.grame.fr/";
+    downloadPage = "https://sourceforge.net/projects/faudiostream/files/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ magnetophon pmahoney ];
diff --git a/pkgs/applications/audio/faust/faust2.nix b/pkgs/applications/audio/faust/faust2.nix
index cca0e21f83582..33df1ce5d4ee1 100644
--- a/pkgs/applications/audio/faust/faust2.nix
+++ b/pkgs/applications/audio/faust/faust2.nix
@@ -31,8 +31,8 @@ let
   };
 
   meta = with stdenv.lib; {
-    homepage = http://faust.grame.fr/;
-    downloadPage = https://sourceforge.net/projects/faudiostream/files/;
+    homepage = "http://faust.grame.fr/";
+    downloadPage = "https://sourceforge.net/projects/faudiostream/files/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ magnetophon pmahoney ];
diff --git a/pkgs/applications/audio/faust/faustlive.nix b/pkgs/applications/audio/faust/faustlive.nix
index 3b6ca9e4053f9..90bd8bc60ad04 100644
--- a/pkgs/applications/audio/faust/faustlive.nix
+++ b/pkgs/applications/audio/faust/faustlive.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
       together the convenience of a standalone interpreted language with the
       efficiency of a compiled language. It's ideal for fast prototyping.
     '';
-    homepage = http://faust.grame.fr/;
+    homepage = "http://faust.grame.fr/";
     license = licenses.gpl3;
   };
 }
diff --git a/pkgs/applications/audio/flac/default.nix b/pkgs/applications/audio/flac/default.nix
index df3aa987c3fb5..bd8b9bea82b75 100644
--- a/pkgs/applications/audio/flac/default.nix
+++ b/pkgs/applications/audio/flac/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   outputs = [ "bin" "dev" "out" "man" "doc" ];
 
   meta = with stdenv.lib; {
-    homepage = https://xiph.org/flac/;
+    homepage = "https://xiph.org/flac/";
     description = "Library and tools for encoding and decoding the FLAC lossless audio file format";
     platforms = platforms.all;
     license = licenses.bsd3;
diff --git a/pkgs/applications/audio/flac123/default.nix b/pkgs/applications/audio/flac123/default.nix
index 19ed23523556e..6f13b710effc6 100644
--- a/pkgs/applications/audio/flac123/default.nix
+++ b/pkgs/applications/audio/flac123/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ flac libao libogg popt ];
 
   meta = with stdenv.lib; {
-    homepage = http://flac-tools.sourceforge.net/;
+    homepage = "http://flac-tools.sourceforge.net/";
     description = "A command-line program for playing FLAC audio files";
     license = licenses.gpl2Plus;
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/flacon/default.nix b/pkgs/applications/audio/flacon/default.nix
index eb39309a254c2..1da40e7541531 100644
--- a/pkgs/applications/audio/flacon/default.nix
+++ b/pkgs/applications/audio/flacon/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Extracts audio tracks from an audio CD image to separate tracks.";
-    homepage = https://flacon.github.io/;
+    homepage = "https://flacon.github.io/";
     license = licenses.lgpl21;
     platforms = platforms.linux;
     maintainers = with maintainers; [ snglth ];
diff --git a/pkgs/applications/audio/fluidsynth/default.nix b/pkgs/applications/audio/fluidsynth/default.nix
index 8e2895bf84780..9d9772cde29a5 100644
--- a/pkgs/applications/audio/fluidsynth/default.nix
+++ b/pkgs/applications/audio/fluidsynth/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation  {
 
   meta = with lib; {
     description = "Real-time software synthesizer based on the SoundFont 2 specifications";
-    homepage    = http://www.fluidsynth.org;
+    homepage    = "http://www.fluidsynth.org";
     license     = licenses.lgpl21Plus;
     maintainers = with maintainers; [ goibhniu lovek323 ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/audio/fmit/default.nix b/pkgs/applications/audio/fmit/default.nix
index ee45217e49091..114cf5e192ff8 100644
--- a/pkgs/applications/audio/fmit/default.nix
+++ b/pkgs/applications/audio/fmit/default.nix
@@ -46,7 +46,7 @@ mkDerivation rec {
       FMIT is a graphical utility for tuning musical instruments, with error
       and volume history, and advanced features.
     '';
-    homepage = http://gillesdegottex.github.io/fmit/;
+    homepage = "http://gillesdegottex.github.io/fmit/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/fmsynth/default.nix b/pkgs/applications/audio/fmsynth/default.nix
index 248967e06e6f3..d957c7ec33d87 100644
--- a/pkgs/applications/audio/fmsynth/default.nix
+++ b/pkgs/applications/audio/fmsynth/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
       - Full floating point implementation optimized for SIMD
       - Hard real-time constraints
     '';
-    homepage = https://github.com/Themaister/libfmsynth;
+    homepage = "https://github.com/Themaister/libfmsynth";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/fomp/default.nix b/pkgs/applications/audio/fomp/default.nix
index 9f7f0b0900740..a712eef06501f 100644
--- a/pkgs/applications/audio/fomp/default.nix
+++ b/pkgs/applications/audio/fomp/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ lv2 python2 ];
 
   meta = with stdenv.lib; {
-    homepage = http://drobilla.net/software/fomp/;
+    homepage = "http://drobilla.net/software/fomp/";
     description = "An LV2 port of the MCP, VCO, FIL, and WAH plugins by Fons Adriaensen";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/foo-yc20/default.nix b/pkgs/applications/audio/foo-yc20/default.nix
index e514032f44e25..643b648fa88d8 100644
--- a/pkgs/applications/audio/foo-yc20/default.nix
+++ b/pkgs/applications/audio/foo-yc20/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   meta = {
     broken = true; # see: https://github.com/sampov2/foo-yc20/issues/7
     description = "A Faust implementation of a 1969 designed Yamaha combo organ, the YC-20";
-    homepage = https://github.com/sampov2/foo-yc20;
+    homepage = "https://github.com/sampov2/foo-yc20";
     license     = "BSD";
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/freewheeling/default.nix b/pkgs/applications/audio/freewheeling/default.nix
index 34494871f29c1..6ee120f3d1a8a 100644
--- a/pkgs/applications/audio/freewheeling/default.nix
+++ b/pkgs/applications/audio/freewheeling/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
         software, released under the GNU GPL license.
     '' ;
 
-    homepage = http://freewheeling.sourceforge.net;
+    homepage = "http://freewheeling.sourceforge.net";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.sepi ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/game-music-emu/default.nix b/pkgs/applications/audio/game-music-emu/default.nix
index d95b3eea596d6..51f895ea2d5ff 100644
--- a/pkgs/applications/audio/game-music-emu/default.nix
+++ b/pkgs/applications/audio/game-music-emu/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cmake ];
 
   meta = with stdenv.lib; {
-    homepage = https://bitbucket.org/mpyne/game-music-emu/wiki/Home;
+    homepage = "https://bitbucket.org/mpyne/game-music-emu/wiki/Home";
     description = "A collection of video game music file emulators";
     license = licenses.lgpl21Plus;
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/gigedit/default.nix b/pkgs/applications/audio/gigedit/default.nix
index b8ec2d7116f5d..08eec3135081d 100644
--- a/pkgs/applications/audio/gigedit/default.nix
+++ b/pkgs/applications/audio/gigedit/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.linuxsampler.org;
+    homepage = "http://www.linuxsampler.org";
     description = "Gigasampler file access library";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/gjay/default.nix b/pkgs/applications/audio/gjay/default.nix
index 42285ba4bf862..9e016c68608bd 100644
--- a/pkgs/applications/audio/gjay/default.nix
+++ b/pkgs/applications/audio/gjay/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Generates playlists such that each song sounds good following the previous song";
-    homepage = http://gjay.sourceforge.net/;
+    homepage = "http://gjay.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/audio/gmpc/default.nix b/pkgs/applications/audio/gmpc/default.nix
index cae35b6251904..7ae02ae38d852 100644
--- a/pkgs/applications/audio/gmpc/default.nix
+++ b/pkgs/applications/audio/gmpc/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   libmpd = stdenv.mkDerivation {
     name = "libmpd-11.8.17";
     src = fetchurl {
-      url = http://download.sarine.nl/Programs/gmpc/11.8/libmpd-11.8.17.tar.gz;
+      url = "http://download.sarine.nl/Programs/gmpc/11.8/libmpd-11.8.17.tar.gz";
       sha256 = "10vspwsgr8pwf3qp2bviw6b2l8prgdiswgv7qiqiyr0h1mmk487y";
     };
     patches = [ ./libmpd-11.8.17-remove-strndup.patch ];
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://gmpclient.org;
+    homepage = "https://gmpclient.org";
     description = "A GTK2 frontend for Music Player Daemon";
     license = licenses.gpl2;
     maintainers = [];
diff --git a/pkgs/applications/audio/gmu/default.nix b/pkgs/applications/audio/gmu/default.nix
index 8446855d190c3..bfe9f72d66463 100644
--- a/pkgs/applications/audio/gmu/default.nix
+++ b/pkgs/applications/audio/gmu/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://wejp.k.vu/projects/gmu;
+    homepage = "http://wejp.k.vu/projects/gmu";
     description = "Open source music player for portable gaming consoles and handhelds";
     license = stdenv.lib.licenses.gpl2;
   };
diff --git a/pkgs/applications/audio/gnome-podcasts/default.nix b/pkgs/applications/audio/gnome-podcasts/default.nix
index 261750859940a..e24bd61693e71 100644
--- a/pkgs/applications/audio/gnome-podcasts/default.nix
+++ b/pkgs/applications/audio/gnome-podcasts/default.nix
@@ -74,7 +74,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Listen to your favorite podcasts";
-    homepage = https://wiki.gnome.org/Apps/Podcasts;
+    homepage = "https://wiki.gnome.org/Apps/Podcasts";
     license = licenses.gpl3;
     maintainers = gnome3.maintainers;
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/google-play-music-desktop-player/default.nix b/pkgs/applications/audio/google-play-music-desktop-player/default.nix
index 332f2ca2342ea..509d3ddcf751f 100644
--- a/pkgs/applications/audio/google-play-music-desktop-player/default.nix
+++ b/pkgs/applications/audio/google-play-music-desktop-player/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://www.googleplaymusicdesktopplayer.com/;
+    homepage = "https://www.googleplaymusicdesktopplayer.com/";
     description = "A beautiful cross platform Desktop Player for Google Play Music";
     license = stdenv.lib.licenses.mit;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/audio/gpodder/default.nix b/pkgs/applications/audio/gpodder/default.nix
index 332a633616ccb..1905699e516ce 100644
--- a/pkgs/applications/audio/gpodder/default.nix
+++ b/pkgs/applications/audio/gpodder/default.nix
@@ -73,7 +73,7 @@ python3Packages.buildPythonApplication rec {
       gPodder downloads and manages free audio and video content (podcasts)
       for you. Listen directly on your computer or on your mobile devices.
     '';
-    homepage = http://gpodder.org/;
+    homepage = "http://gpodder.org/";
     license = licenses.gpl3;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ skeidel mic92 ];
diff --git a/pkgs/applications/audio/gradio/default.nix b/pkgs/applications/audio/gradio/default.nix
index 487b0a730d83b..384235fc0650d 100644
--- a/pkgs/applications/audio/gradio/default.nix
+++ b/pkgs/applications/audio/gradio/default.nix
@@ -63,7 +63,7 @@ in stdenv.mkDerivation {
   patches = [ ./0001-Remove-post-install-script-that-hardcodes-paths.patch ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/haecker-felix/gradio;
+    homepage = "https://github.com/haecker-felix/gradio";
     description = "A GTK3 app for finding and listening to internet radio stations";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/gtklick/default.nix b/pkgs/applications/audio/gtklick/default.nix
index b653ae5ca5881..a81834c1fff79 100644
--- a/pkgs/applications/audio/gtklick/default.nix
+++ b/pkgs/applications/audio/gtklick/default.nix
@@ -27,7 +27,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   meta = {
-    homepage = http://das.nasophon.de/gtklick/;
+    homepage = "http://das.nasophon.de/gtklick/";
     description = "Simple metronome with an easy-to-use GTK interface";
     license = stdenv.lib.licenses.gpl2Plus;
   };
diff --git a/pkgs/applications/audio/gtkpod/default.nix b/pkgs/applications/audio/gtkpod/default.nix
index fd3632ee1552e..1f293fe2d7960 100644
--- a/pkgs/applications/audio/gtkpod/default.nix
+++ b/pkgs/applications/audio/gtkpod/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GTK Manager for an Apple ipod";
-    homepage = http://gtkpod.sourceforge.net;
+    homepage = "http://gtkpod.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.skeidel ];
diff --git a/pkgs/applications/audio/guitarix/default.nix b/pkgs/applications/audio/guitarix/default.nix
index acb078fea8768..095cd79b56e45 100644
--- a/pkgs/applications/audio/guitarix/default.nix
+++ b/pkgs/applications/audio/guitarix/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
       clean-sounds, nice overdrive, fat distortion and a diversity of
       crazy sounds never heard before.
     '';
-    homepage = http://guitarix.sourceforge.net/;
+    homepage = "http://guitarix.sourceforge.net/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ astsmtl goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/gxmatcheq-lv2/default.nix b/pkgs/applications/audio/gxmatcheq-lv2/default.nix
index 1d5579d74c050..b2d99e0eba866 100644
--- a/pkgs/applications/audio/gxmatcheq-lv2/default.nix
+++ b/pkgs/applications/audio/gxmatcheq-lv2/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "INSTALL_DIR=$(out)/lib/lv2" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/brummer10/GxMatchEQ.lv2;
+    homepage = "https://github.com/brummer10/GxMatchEQ.lv2";
     description = "Matching Equalizer to apply EQ curve from one source to another source";
     maintainers = [ maintainers.magnetophon ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/audio/gxplugins-lv2/default.nix b/pkgs/applications/audio/gxplugins-lv2/default.nix
index 1f4323eb9d55c..077bb407020e4 100644
--- a/pkgs/applications/audio/gxplugins-lv2/default.nix
+++ b/pkgs/applications/audio/gxplugins-lv2/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/brummer10/GxPlugins.lv2;
+    homepage = "https://github.com/brummer10/GxPlugins.lv2";
     description = "A set of extra lv2 plugins from the guitarix project";
     maintainers = [ maintainers.magnetophon ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/audio/helio-workstation/default.nix b/pkgs/applications/audio/helio-workstation/default.nix
index bfd211316a7c9..3ada3224e33e0 100644
--- a/pkgs/applications/audio/helio-workstation/default.nix
+++ b/pkgs/applications/audio/helio-workstation/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "One music sequencer for all major platforms, both desktop and mobile";
-    homepage = https://helio.fm/;
+    homepage = "https://helio.fm/";
     license = licenses.gpl3;
     maintainers = [ maintainers.suhr ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/audio/helm/default.nix b/pkgs/applications/audio/helm/default.nix
index 428490e119a62..8459967a363c5 100644
--- a/pkgs/applications/audio/helm/default.nix
+++ b/pkgs/applications/audio/helm/default.nix
@@ -34,7 +34,7 @@
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://tytel.org/helm;
+    homepage = "http://tytel.org/helm";
     description = "A free, cross-platform, polyphonic synthesizer";
     longDescription = ''
       A free, cross-platform, polyphonic synthesizer.
diff --git a/pkgs/applications/audio/hybridreverb2/default.nix b/pkgs/applications/audio/hybridreverb2/default.nix
index 19aac1bd1e957..3f1fac79623d5 100644
--- a/pkgs/applications/audio/hybridreverb2/default.nix
+++ b/pkgs/applications/audio/hybridreverb2/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www2.ika.ruhr-uni-bochum.de/HybridReverb2;
+    homepage = "http://www2.ika.ruhr-uni-bochum.de/HybridReverb2";
     description = "Reverb effect using hybrid impulse convolution";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/hydrogen/default.nix b/pkgs/applications/audio/hydrogen/default.nix
index d8aa2a013c4d9..b3aff4e4c5091 100644
--- a/pkgs/applications/audio/hydrogen/default.nix
+++ b/pkgs/applications/audio/hydrogen/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Advanced drum machine";
-    homepage = http://www.hydrogen-music.org;
+    homepage = "http://www.hydrogen-music.org";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/i-score/default.nix b/pkgs/applications/audio/i-score/default.nix
index f3928499413c7..daedb9b98206c 100644
--- a/pkgs/applications/audio/i-score/default.nix
+++ b/pkgs/applications/audio/i-score/default.nix
@@ -77,7 +77,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An interactive sequencer for the intermedia arts";
-    homepage = http://i-score.org/;
+    homepage = "http://i-score.org/";
     license = stdenv.lib.licenses.cecill20;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/iannix/default.nix b/pkgs/applications/audio/iannix/default.nix
index a893390d74edf..2d4a2e9265a3c 100644
--- a/pkgs/applications/audio/iannix/default.nix
+++ b/pkgs/applications/audio/iannix/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Graphical open-source sequencer,";
-    homepage = https://www.iannix.org/;
+    homepage = "https://www.iannix.org/";
     license = stdenv.lib.licenses.lgpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/id3v2/default.nix b/pkgs/applications/audio/id3v2/default.nix
index 0fdb3b2a4a149..75d999ede1d7a 100644
--- a/pkgs/applications/audio/id3v2/default.nix
+++ b/pkgs/applications/audio/id3v2/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A command line editor for id3v2 tags";
-    homepage = http://id3v2.sourceforge.net/;
+    homepage = "http://id3v2.sourceforge.net/";
     license = licenses.gpl2Plus;
     platforms = with platforms; unix;
   };
diff --git a/pkgs/applications/audio/infamousPlugins/default.nix b/pkgs/applications/audio/infamousPlugins/default.nix
index 341c41818421d..2cfe77ec291fd 100644
--- a/pkgs/applications/audio/infamousPlugins/default.nix
+++ b/pkgs/applications/audio/infamousPlugins/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cairomm lv2 libpthreadstubs libXdmcp libXft ntk pcre fftwFloat zita-resampler ];
 
   meta = with stdenv.lib; {
-    homepage = https://ssj71.github.io/infamousPlugins;
+    homepage = "https://ssj71.github.io/infamousPlugins";
     description = "A collection of open-source LV2 plugins";
     longDescription = ''
       These are audio plugins in the LV2 format, developed for linux. Most are suitable for live use.
diff --git a/pkgs/applications/audio/ingen/default.nix b/pkgs/applications/audio/ingen/default.nix
index 9d3fb6aae40b2..c5d4b3f87f491 100644
--- a/pkgs/applications/audio/ingen/default.nix
+++ b/pkgs/applications/audio/ingen/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "A modular audio processing system using JACK and LV2 or LADSPA plugins";
-    homepage = http://drobilla.net/software/ingen;
+    homepage = "http://drobilla.net/software/ingen";
     license = licenses.agpl3Plus;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/ir.lv2/default.nix b/pkgs/applications/audio/ir.lv2/default.nix
index 9d3656a81f97d..f9f58ab5ec1a6 100644
--- a/pkgs/applications/audio/ir.lv2/default.nix
+++ b/pkgs/applications/audio/ir.lv2/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://factorial.hu/plugins/lv2/ir;
+    homepage = "http://factorial.hu/plugins/lv2/ir";
     description = "Zero-latency, realtime, high performance signal convolver especially for creating reverb effects";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/jaaa/default.nix b/pkgs/applications/audio/jaaa/default.nix
index 92b2f8ac5153c..80f15935af23f 100644
--- a/pkgs/applications/audio/jaaa/default.nix
+++ b/pkgs/applications/audio/jaaa/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     description = "JACK and ALSA Audio Analyser";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/jack-capture/default.nix b/pkgs/applications/audio/jack-capture/default.nix
index c62ccc4fc8831..e443a0a52694a 100644
--- a/pkgs/applications/audio/jack-capture/default.nix
+++ b/pkgs/applications/audio/jack-capture/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A program for recording soundfiles with jack";
-    homepage = http://archive.notam02.no/arkiv/src;
+    homepage = "http://archive.notam02.no/arkiv/src";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jack-oscrolloscope/default.nix b/pkgs/applications/audio/jack-oscrolloscope/default.nix
index 5bad5453504fa..08263f2abddc2 100644
--- a/pkgs/applications/audio/jack-oscrolloscope/default.nix
+++ b/pkgs/applications/audio/jack-oscrolloscope/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; { 
     description = "A simple waveform viewer for JACK";
-    homepage = http://das.nasophon.de/jack_oscrolloscope;
+    homepage = "http://das.nasophon.de/jack_oscrolloscope";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jack-rack/default.nix b/pkgs/applications/audio/jack-rack/default.nix
index 2f9b9db93c244..d13dbcc168895 100644
--- a/pkgs/applications/audio/jack-rack/default.nix
+++ b/pkgs/applications/audio/jack-rack/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       be controlled using the ALSA sequencer. It's phat; it turns your
       computer into an effects box.
     '';
-    homepage = http://jack-rack.sourceforge.net/;
+    homepage = "http://jack-rack.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.astsmtl ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jackmeter/default.nix b/pkgs/applications/audio/jackmeter/default.nix
index e44dfddd37b7c..2a75b384af5ca 100644
--- a/pkgs/applications/audio/jackmeter/default.nix
+++ b/pkgs/applications/audio/jackmeter/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = { 
     description = "Console jack loudness meter";
-    homepage = https://www.aelius.com/njh/jackmeter/;
+    homepage = "https://www.aelius.com/njh/jackmeter/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.marcweber ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jackmix/default.nix b/pkgs/applications/audio/jackmix/default.nix
index 5df6e1e2daeac..c3a46439ba709 100644
--- a/pkgs/applications/audio/jackmix/default.nix
+++ b/pkgs/applications/audio/jackmix/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "jackmix-0.5.2";
   src = fetchurl {
-    url = https://github.com/kampfschlaefer/jackmix/archive/v0.5.2.tar.gz;
+    url = "https://github.com/kampfschlaefer/jackmix/archive/v0.5.2.tar.gz";
     sha256 = "18f5v7g66mgarhs476frvayhch7fy4nyjf2xivixc061ipn0m82j";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Matrix-Mixer for the Jack-Audio-connection-Kit";
-    homepage = http://www.arnoldarts.de/jackmix/;
+    homepage = "http://www.arnoldarts.de/jackmix/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.kampfschlaefer ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jalv/default.nix b/pkgs/applications/audio/jalv/default.nix
index 51ec102dbfd21..bbf66a74bc503 100644
--- a/pkgs/applications/audio/jalv/default.nix
+++ b/pkgs/applications/audio/jalv/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "A simple but fully featured LV2 host for Jack";
-    homepage = http://drobilla.net/software/jalv;
+    homepage = "http://drobilla.net/software/jalv";
     license = licenses.isc;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/jamin/default.nix b/pkgs/applications/audio/jamin/default.nix
index 818630585cfdf..a9b423320a0ea 100644
--- a/pkgs/applications/audio/jamin/default.nix
+++ b/pkgs/applications/audio/jamin/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   name = "jamin-0.95.0";
 
   src = fetchurl {
-    url = mirror://sourceforge/jamin/jamin-0.95.0.tar.gz;
+    url = "mirror://sourceforge/jamin/jamin-0.95.0.tar.gz";
     sha256 = "0g5v74cm0q3p3pzl6xmnp4rqayaymfli7c6z8s78h9rgd24fwbvn";
   };
 
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://jamin.sourceforge.net;
+    homepage = "http://jamin.sourceforge.net";
     description = "JACK Audio Mastering interface";
     license = licenses.gpl2;
     maintainers = [ maintainers.nico202 ];
diff --git a/pkgs/applications/audio/japa/default.nix b/pkgs/applications/audio/japa/default.nix
index a9eb15aabf357..426fea21107f4 100644
--- a/pkgs/applications/audio/japa/default.nix
+++ b/pkgs/applications/audio/japa/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A 'perceptual' or 'psychoacoustic' audio spectrum analyser for JACK and ALSA";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/keyfinder/default.nix b/pkgs/applications/audio/keyfinder/default.nix
index d47fc3b6190da..710c1e8079297 100644
--- a/pkgs/applications/audio/keyfinder/default.nix
+++ b/pkgs/applications/audio/keyfinder/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
       management, no track suggestions, no media player. Just a fast,
       efficient workflow tool.
     '';
-    homepage = http://www.ibrahimshaath.co.uk/keyfinder/;
+    homepage = "http://www.ibrahimshaath.co.uk/keyfinder/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/kid3/default.nix b/pkgs/applications/audio/kid3/default.nix
index dcd305abdee6a..cfcad390f4c9a 100644
--- a/pkgs/applications/audio/kid3/default.nix
+++ b/pkgs/applications/audio/kid3/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
       - Edit synchronized lyrics and event timing codes, import and
         export LRC files
     '';
-    homepage = http://kid3.sourceforge.net/;
+    homepage = "http://kid3.sourceforge.net/";
     license = licenses.lgpl2Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/klick/default.nix b/pkgs/applications/audio/klick/default.nix
index f33245d8f1c95..9ff063c1c8078 100644
--- a/pkgs/applications/audio/klick/default.nix
+++ b/pkgs/applications/audio/klick/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE = "-fpermissive";
 
   meta = {
-    homepage = http://das.nasophon.de/klick/;
+    homepage = "http://das.nasophon.de/klick/";
     description = "Advanced command-line metronome for JACK";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/ladspa-plugins/default.nix b/pkgs/applications/audio/ladspa-plugins/default.nix
index 44186abc3c46c..a0fc8631fb391 100644
--- a/pkgs/applications/audio/ladspa-plugins/default.nix
+++ b/pkgs/applications/audio/ladspa-plugins/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://plugin.org.uk/;
+    homepage = "http://plugin.org.uk/";
     description = "LADSPA format audio plugins";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/ladspa-sdk/default.nix b/pkgs/applications/audio/ladspa-sdk/default.nix
index a7779ee8aeea1..76acd1daba7fb 100644
--- a/pkgs/applications/audio/ladspa-sdk/default.nix
+++ b/pkgs/applications/audio/ladspa-sdk/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
       ten example LADSPA plugins and
       three example programs (applyplugin, analyseplugin and listplugins).
     '';
-    homepage = http://www.ladspa.org/ladspa_sdk/overview.html;
+    homepage = "http://www.ladspa.org/ladspa_sdk/overview.html";
     license = stdenv.lib.licenses.lgpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/ladspa-sdk/ladspah.nix b/pkgs/applications/audio/ladspa-sdk/ladspah.nix
index 3fad5de1de592..d51aa3b75e1f2 100644
--- a/pkgs/applications/audio/ladspa-sdk/ladspah.nix
+++ b/pkgs/applications/audio/ladspa-sdk/ladspah.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
       The ladspa.h API header file from the LADSPA SDK.
       For the full SDK, use the ladspa-sdk package.
     '';
-    homepage = http://www.ladspa.org/ladspa_sdk/overview.html;
+    homepage = "http://www.ladspa.org/ladspa_sdk/overview.html";
     license = stdenv.lib.licenses.lgpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/audio/lash/default.nix b/pkgs/applications/audio/lash/default.nix
index 0dbe60b6a6154..cb0a3ee05e122 100644
--- a/pkgs/applications/audio/lash/default.nix
+++ b/pkgs/applications/audio/lash/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation  rec {
     longDescription = ''
       Session management system for GNU/Linux audio applications.
     '';
-    homepage = https://www.nongnu.org/lash;
+    homepage = "https://www.nongnu.org/lash";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/lastfmsubmitd/default.nix b/pkgs/applications/audio/lastfmsubmitd/default.nix
index 3135a00334c7d..efafc5b05b184 100644
--- a/pkgs/applications/audio/lastfmsubmitd/default.nix
+++ b/pkgs/applications/audio/lastfmsubmitd/default.nix
@@ -14,7 +14,7 @@ pythonPackages.buildPythonApplication rec {
   installCommand = "python setup.py install --prefix=$out";
 
   meta = {
-    homepage = https://www.red-bean.com/decklin/lastfmsubmitd/;
+    homepage = "https://www.red-bean.com/decklin/lastfmsubmitd/";
     license = lib.licenses.mit;
     description = "An last.fm audio scrobbler and daemon";
   };
diff --git a/pkgs/applications/audio/linuxband/default.nix b/pkgs/applications/audio/linuxband/default.nix
index b5a99150cb223..cd9ca5e267489 100644
--- a/pkgs/applications/audio/linuxband/default.nix
+++ b/pkgs/applications/audio/linuxband/default.nix
@@ -29,7 +29,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "A GUI front-end for MMA: Type in the chords, choose the groove and it will play an accompaniment";
-    homepage = http://linuxband.org/;
+    homepage = "http://linuxband.org/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/linuxsampler/default.nix b/pkgs/applications/audio/linuxsampler/default.nix
index f13f10d15e820..6b6cfd55926b6 100644
--- a/pkgs/applications/audio/linuxsampler/default.nix
+++ b/pkgs/applications/audio/linuxsampler/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.linuxsampler.org;
+    homepage = "http://www.linuxsampler.org";
     description = "Sampler backend";
     longDescription = ''
       Includes sampler engine, audio and MIDI drivers, network layer
diff --git a/pkgs/applications/audio/lmms/default.nix b/pkgs/applications/audio/lmms/default.nix
index 0420a52d89b8d..c243e9beb233e 100644
--- a/pkgs/applications/audio/lmms/default.nix
+++ b/pkgs/applications/audio/lmms/default.nix
@@ -41,7 +41,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "DAW similar to FL Studio (music production software)";
-    homepage = https://lmms.io;
+    homepage = "https://lmms.io";
     license = licenses.gpl2Plus;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = with maintainers; [ goibhniu yegortimoshenko ];
diff --git a/pkgs/applications/audio/lollypop/default.nix b/pkgs/applications/audio/lollypop/default.nix
index d0f88170980a7..a3580ce3b522d 100644
--- a/pkgs/applications/audio/lollypop/default.nix
+++ b/pkgs/applications/audio/lollypop/default.nix
@@ -94,7 +94,7 @@ python3.pkgs.buildPythonApplication rec  {
   meta = with lib; {
     changelog = "https://gitlab.gnome.org/World/lollypop/tags/${version}";
     description = "A modern music player for GNOME";
-    homepage = https://wiki.gnome.org/Apps/Lollypop;
+    homepage = "https://wiki.gnome.org/Apps/Lollypop";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/lsp-plugins/default.nix b/pkgs/applications/audio/lsp-plugins/default.nix
index 8a2f64b4efd4b..a8aa101ab4de6 100644
--- a/pkgs/applications/audio/lsp-plugins/default.nix
+++ b/pkgs/applications/audio/lsp-plugins/default.nix
@@ -140,7 +140,7 @@ stdenv.mkDerivation rec {
         - Delay Compensator Stereo - Verzögerungsausgleicher Stereo
         - Delay Compensator x2 Stereo - Verzögerungsausgleicher x2 Stereo
       '';
-      homepage = https://lsp-plug.in;
+      homepage = "https://lsp-plug.in";
       maintainers = with maintainers; [ magnetophon ];
       license = licenses.gpl2;
       platforms = platforms.linux;
diff --git a/pkgs/applications/audio/luppp/default.nix b/pkgs/applications/audio/luppp/default.nix
index fdba836a6ae2e..c1494ffc3334e 100644
--- a/pkgs/applications/audio/luppp/default.nix
+++ b/pkgs/applications/audio/luppp/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://openavproductions.com/luppp/;
+    homepage = "http://openavproductions.com/luppp/";
     description = "A music creation tool, intended for live use";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ prusnak ];
diff --git a/pkgs/applications/audio/lv2bm/default.nix b/pkgs/applications/audio/lv2bm/default.nix
index f1eddb626245c..aee910f56eb6e 100644
--- a/pkgs/applications/audio/lv2bm/default.nix
+++ b/pkgs/applications/audio/lv2bm/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/portalmod/lv2bm;
+    homepage = "https://github.com/portalmod/lv2bm";
     description = "A benchmark tool for LV2 plugins";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix b/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix
index 6488d1bd65e56..e16198696a697 100644
--- a/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A compressor with character. For jack and lv2";
-    homepage = https://github.com/magnetophon/CharacterCompressor;
+    homepage = "https://github.com/magnetophon/CharacterCompressor";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix b/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix
index c5728b6e8b7bc..1ccc9f3fcd5b1 100644
--- a/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A group of compressors mixed into a bus, sidechained from that mix bus. For jack and lv2";
-    homepage = https://github.com/magnetophon/CompBus;
+    homepage = "https://github.com/magnetophon/CompBus";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix b/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix
index 331e58c4bd294..d5ed7e85b696b 100644
--- a/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A chorus algorithm that maintains constant and symmetric detuning depth (in cents), regardless of modulation rate. For jack and lv2";
-    homepage = https://github.com/magnetophon/constant-detune-chorus;
+    homepage = "https://github.com/magnetophon/constant-detune-chorus";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix b/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix
index 046ee70e990c9..6d119394d5de8 100644
--- a/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A fast yet clean lookahead limiter for jack and lv2";
-    homepage = https://magnetophon.github.io/LazyLimiter/;
+    homepage = "https://magnetophon.github.io/LazyLimiter/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix b/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix
index aa7da17dafd18..0eb68e65eae60 100644
--- a/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Mid-side multiband distortion for jack and lv2";
-    homepage = https://github.com/magnetophon/MBdistortion;
+    homepage = "https://github.com/magnetophon/MBdistortion";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix b/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix
index ae05866e57d09..be8ad72d28dff 100644
--- a/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Tap a rhythm into your delay! For jack and lv2";
-    homepage = https://github.com/magnetophon/RhythmDelay;
+    homepage = "https://github.com/magnetophon/RhythmDelay";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix b/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
index 718bbdaf49ea9..dce2db4cb7708 100644
--- a/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Turn your voice into a synthesizer";
-    homepage = https://github.com/magnetophon/VoiceOfFaust;
+    homepage = "https://github.com/magnetophon/VoiceOfFaust";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix b/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix
index 735e7efe54dcc..172b5ed38913f 100644
--- a/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A collection of bread and butter compressors";
-    homepage = https://github.com/magnetophon/faustCompressors;
+    homepage = "https://github.com/magnetophon/faustCompressors";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix b/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix
index 356e95bf97c84..11d51d756abcd 100644
--- a/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Some simple utility lv2 plugins";
-    homepage = https://github.com/magnetophon/pluginUtils;
+    homepage = "https://github.com/magnetophon/pluginUtils";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix b/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix
index 292cd3dfd8606..360cee243c33a 100644
--- a/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A multiband compressor made from shelving filters.";
-    homepage = https://github.com/magnetophon/shelfMultiBand;
+    homepage = "https://github.com/magnetophon/shelfMultiBand";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/mda-lv2/default.nix b/pkgs/applications/audio/mda-lv2/default.nix
index 6c4170cf0fb6d..2464abb6585c1 100644
--- a/pkgs/applications/audio/mda-lv2/default.nix
+++ b/pkgs/applications/audio/mda-lv2/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ fftwSinglePrec lv2 ];
 
   meta = with stdenv.lib; {
-    homepage = http://drobilla.net/software/mda-lv2/;
+    homepage = "http://drobilla.net/software/mda-lv2/";
     description = "An LV2 port of the MDA plugins by Paul Kellett";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/meterbridge/default.nix b/pkgs/applications/audio/meterbridge/default.nix
index 4d2fa0e15b489..9d807358cd5a9 100644
--- a/pkgs/applications/audio/meterbridge/default.nix
+++ b/pkgs/applications/audio/meterbridge/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Various meters (VU, PPM, DPM, JF, SCO) for Jack Audio Connection Kit";
-    homepage = http://plugin.org.uk/meterbridge/;
+    homepage = "http://plugin.org.uk/meterbridge/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.nico202 ];
diff --git a/pkgs/applications/audio/meters_lv2/default.nix b/pkgs/applications/audio/meters_lv2/default.nix
index 12383dcbbda4a..cd9523d271086 100644
--- a/pkgs/applications/audio/meters_lv2/default.nix
+++ b/pkgs/applications/audio/meters_lv2/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib;
     { description = "Collection of audio level meters with GUI in LV2 plugin format";
-      homepage = http://x42.github.io/meters.lv2/;
+      homepage = "http://x42.github.io/meters.lv2/";
       maintainers = with maintainers; [ ehmry ];
       license = licenses.gpl2;
       platforms = platforms.linux;
diff --git a/pkgs/applications/audio/mhwaveedit/default.nix b/pkgs/applications/audio/mhwaveedit/default.nix
index e4d6c0293df84..67204260da247 100644
--- a/pkgs/applications/audio/mhwaveedit/default.nix
+++ b/pkgs/applications/audio/mhwaveedit/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Graphical program for editing, playing and recording sound files";
-    homepage = https://github.com/magnush/mhwaveedit;
+    homepage = "https://github.com/magnush/mhwaveedit";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/mid2key/default.nix b/pkgs/applications/audio/mid2key/default.nix
index 3c5660724d397..071b18e5a8a63 100644
--- a/pkgs/applications/audio/mid2key/default.nix
+++ b/pkgs/applications/audio/mid2key/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   installPhase = "mkdir -p $out/bin && mv mid2key $out/bin";
 
   meta = with stdenv.lib; {
-    homepage = http://code.google.com/p/mid2key/;
+    homepage = "http://code.google.com/p/mid2key/";
     description = "A simple tool which maps midi notes to simulated keystrokes";
     license = licenses.gpl3;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/midas/m32edit.nix b/pkgs/applications/audio/midas/m32edit.nix
index c8a751c235b1c..6af11d42e31f9 100644
--- a/pkgs/applications/audio/midas/m32edit.nix
+++ b/pkgs/applications/audio/midas/m32edit.nix
@@ -5,5 +5,5 @@ callPackage ./generic.nix (args // {
   type = "M32";
   version = "3.2";
   sha256 = "1cds6qinz37086l6pmmgrzrxadygjr2z96sjjyznnai2wz4z2nrd";
-  homepage = http://www.musictri.be/Categories/Midas/Mixers/Digital/M32/p/P0B3I/downloads;
+  homepage = "http://www.musictri.be/Categories/Midas/Mixers/Digital/M32/p/P0B3I/downloads";
 })
diff --git a/pkgs/applications/audio/midas/x32edit.nix b/pkgs/applications/audio/midas/x32edit.nix
index 4aacfcc89a368..7e364ff984a5f 100644
--- a/pkgs/applications/audio/midas/x32edit.nix
+++ b/pkgs/applications/audio/midas/x32edit.nix
@@ -5,5 +5,5 @@ callPackage ./generic.nix (args // {
   type = "X32";
   version = "3.2";
   sha256 = "1lzmhd0sqnlzc0khpwm82sfi48qhv7rg153a57qjih7hhhy41mzk";
-  homepage = http://www.musictri.be/Categories/Behringer/Mixers/Digital/X32/p/P0ASF/downloads;
+  homepage = "http://www.musictri.be/Categories/Behringer/Mixers/Digital/X32/p/P0ASF/downloads";
 })
diff --git a/pkgs/applications/audio/midisheetmusic/default.nix b/pkgs/applications/audio/midisheetmusic/default.nix
index 48052fc4ec883..388fc2a1b3ea1 100644
--- a/pkgs/applications/audio/midisheetmusic/default.nix
+++ b/pkgs/applications/audio/midisheetmusic/default.nix
@@ -54,7 +54,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Convert MIDI Files to Piano Sheet Music for two hands";
-    homepage = http://midisheetmusic.com;
+    homepage = "http://midisheetmusic.com";
     license = licenses.gpl2;
     maintainers = [ maintainers.gnidorah ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/mikmod/default.nix b/pkgs/applications/audio/mikmod/default.nix
index 42fa8b7621a5d..9be303cb652ad 100644
--- a/pkgs/applications/audio/mikmod/default.nix
+++ b/pkgs/applications/audio/mikmod/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Tracker music player for the terminal";
-    homepage = http://mikmod.shlomifish.org/;
+    homepage = "http://mikmod.shlomifish.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/audio/milkytracker/default.nix b/pkgs/applications/audio/milkytracker/default.nix
index bc508f92e3b51..d7b9e5a6355ba 100644
--- a/pkgs/applications/audio/milkytracker/default.nix
+++ b/pkgs/applications/audio/milkytracker/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music tracker application, similar to Fasttracker II";
-    homepage = http://milkytracker.org;
+    homepage = "http://milkytracker.org";
     license = licenses.gpl3Plus;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = with maintainers; [ zoomulator ];
diff --git a/pkgs/applications/audio/mimic/default.nix b/pkgs/applications/audio/mimic/default.nix
index e91b2c9360de7..e33e69ad78c31 100644
--- a/pkgs/applications/audio/mimic/default.nix
+++ b/pkgs/applications/audio/mimic/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Mycroft's TTS engine, based on CMU's Flite (Festival Lite)";
-    homepage = https://mimic.mycroft.ai/;
+    homepage = "https://mimic.mycroft.ai/";
     license = stdenv.lib.licenses.free;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.noneucat ];
diff --git a/pkgs/applications/audio/mimms/default.nix b/pkgs/applications/audio/mimms/default.nix
index 2d301a8b6a967..47e9fa306dc43 100644
--- a/pkgs/applications/audio/mimms/default.nix
+++ b/pkgs/applications/audio/mimms/default.nix
@@ -15,7 +15,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   meta = {
-    homepage = https://savannah.nongnu.org/projects/mimms/;
+    homepage = "https://savannah.nongnu.org/projects/mimms/";
     license = stdenv.lib.licenses.gpl3;
     description = "An mms (e.g. mms://) stream downloader";
 
diff --git a/pkgs/applications/audio/mixxx/default.nix b/pkgs/applications/audio/mixxx/default.nix
index 8de05ee309b77..f889d9e1e8d23 100644
--- a/pkgs/applications/audio/mixxx/default.nix
+++ b/pkgs/applications/audio/mixxx/default.nix
@@ -49,7 +49,7 @@ mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://mixxx.org;
+    homepage = "https://mixxx.org";
     description = "Digital DJ mixing software";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.aszlig maintainers.goibhniu maintainers.bfortz ];
diff --git a/pkgs/applications/audio/moc/default.nix b/pkgs/applications/audio/moc/default.nix
index 5615f4cace3dc..18b5a980633aa 100644
--- a/pkgs/applications/audio/moc/default.nix
+++ b/pkgs/applications/audio/moc/default.nix
@@ -96,7 +96,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An ncurses console audio player designed to be powerful and easy to use";
-    homepage = http://moc.daper.net/;
+    homepage = "http://moc.daper.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ aethelz pSub jagajaga ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/mod-distortion/default.nix b/pkgs/applications/audio/mod-distortion/default.nix
index c20f04ec9470f..765def25d6004 100644
--- a/pkgs/applications/audio/mod-distortion/default.nix
+++ b/pkgs/applications/audio/mod-distortion/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   installFlags = [ "INSTALL_PATH=$(out)/lib/lv2" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/portalmod/mod-distortion;
+    homepage = "https://github.com/portalmod/mod-distortion";
     description = "Analog distortion emulation lv2 plugins";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/mopidy/gmusic.nix b/pkgs/applications/audio/mopidy/gmusic.nix
index 8c173140efd8f..3dea9156f8fcb 100644
--- a/pkgs/applications/audio/mopidy/gmusic.nix
+++ b/pkgs/applications/audio/mopidy/gmusic.nix
@@ -19,7 +19,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://www.mopidy.com/;
+    homepage = "https://www.mopidy.com/";
     description = "Mopidy extension for playing music from Google Play Music";
     license = licenses.asl20;
     maintainers = [ maintainers.jgillich ];
diff --git a/pkgs/applications/audio/mopidy/iris.nix b/pkgs/applications/audio/mopidy/iris.nix
index 000a0bc0bfe3e..2badfd6a0b1c9 100644
--- a/pkgs/applications/audio/mopidy/iris.nix
+++ b/pkgs/applications/audio/mopidy/iris.nix
@@ -21,7 +21,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jaedb/Iris;
+    homepage = "https://github.com/jaedb/Iris";
     description = "A fully-functional Mopidy web client encompassing Spotify and many other backends";
     license = licenses.asl20;
     maintainers = [ maintainers.rvolosatovs ];
diff --git a/pkgs/applications/audio/mopidy/local-images.nix b/pkgs/applications/audio/mopidy/local-images.nix
index 2ffc736572bf7..085fe855e8a8a 100644
--- a/pkgs/applications/audio/mopidy/local-images.nix
+++ b/pkgs/applications/audio/mopidy/local-images.nix
@@ -24,7 +24,7 @@ pythonPackages.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mopidy/mopidy-local-images;
+    homepage = "https://github.com/mopidy/mopidy-local-images";
     description = "Mopidy local library proxy extension for handling embedded album art";
     license = licenses.asl20;
     maintainers = [ maintainers.rvolosatovs ];
diff --git a/pkgs/applications/audio/mopidy/local-sqlite.nix b/pkgs/applications/audio/mopidy/local-sqlite.nix
index 6d0cc370ff346..23e01c02a0f50 100644
--- a/pkgs/applications/audio/mopidy/local-sqlite.nix
+++ b/pkgs/applications/audio/mopidy/local-sqlite.nix
@@ -17,7 +17,7 @@ pythonPackages.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mopidy/mopidy-local-sqlite;
+    homepage = "https://github.com/mopidy/mopidy-local-sqlite";
     description = "Mopidy SQLite local library extension";
     license = licenses.asl20;
     maintainers = [ maintainers.rvolosatovs ];
diff --git a/pkgs/applications/audio/mopidy/moped.nix b/pkgs/applications/audio/mopidy/moped.nix
index d41fb12ae8d3e..ffd9af76d173b 100644
--- a/pkgs/applications/audio/mopidy/moped.nix
+++ b/pkgs/applications/audio/mopidy/moped.nix
@@ -17,7 +17,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/martijnboland/moped;
+    homepage = "https://github.com/martijnboland/moped";
     description = "A web client for Mopidy";
     license = licenses.mit;
     maintainers = [];
diff --git a/pkgs/applications/audio/mopidy/mopify.nix b/pkgs/applications/audio/mopidy/mopify.nix
index b657f69e26eec..a9902ca417212 100644
--- a/pkgs/applications/audio/mopidy/mopify.nix
+++ b/pkgs/applications/audio/mopidy/mopify.nix
@@ -15,7 +15,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dirkgroenen/mopidy-mopify;
+    homepage = "https://github.com/dirkgroenen/mopidy-mopify";
     description = "A mopidy webclient based on the Spotify webbased interface";
     license = licenses.gpl3;
     maintainers = [ maintainers.Gonzih ];
diff --git a/pkgs/applications/audio/mopidy/spotify.nix b/pkgs/applications/audio/mopidy/spotify.nix
index a01bf6c80d3d2..0793ae01c29e2 100644
--- a/pkgs/applications/audio/mopidy/spotify.nix
+++ b/pkgs/applications/audio/mopidy/spotify.nix
@@ -14,7 +14,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://www.mopidy.com/;
+    homepage = "https://www.mopidy.com/";
     description = "Mopidy extension for playing music from Spotify";
     license = licenses.asl20;
     maintainers = [];
diff --git a/pkgs/applications/audio/mp3blaster/default.nix b/pkgs/applications/audio/mp3blaster/default.nix
index 727133be78df0..2943a31454a64 100644
--- a/pkgs/applications/audio/mp3blaster/default.nix
+++ b/pkgs/applications/audio/mp3blaster/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An audio player for the text console";
-    homepage = http://www.mp3blaster.org/;
+    homepage = "http://www.mp3blaster.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ earldouglas ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/mp3gain/default.nix b/pkgs/applications/audio/mp3gain/default.nix
index 233aebfa1470f..f2b4564c7ccf5 100644
--- a/pkgs/applications/audio/mp3gain/default.nix
+++ b/pkgs/applications/audio/mp3gain/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Lossless mp3 normalizer with statistical analysis";
-    homepage = http://mp3gain.sourceforge.net/;
+    homepage = "http://mp3gain.sourceforge.net/";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/audio/mp3info/default.nix b/pkgs/applications/audio/mp3info/default.nix
index 6700f21fc8cca..69ca271d27dd9 100644
--- a/pkgs/applications/audio/mp3info/default.nix
+++ b/pkgs/applications/audio/mp3info/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
          other attributes in a pre-defined or user-specifiable output format.
       '';
 
-    homepage = http://www.ibiblio.org/mp3info/;
+    homepage = "http://www.ibiblio.org/mp3info/";
 
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/applications/audio/mp3splt/default.nix b/pkgs/applications/audio/mp3splt/default.nix
index f067c5af6df3f..323854575ea74 100644
--- a/pkgs/applications/audio/mp3splt/default.nix
+++ b/pkgs/applications/audio/mp3splt/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Utility to split mp3, ogg vorbis and FLAC files without decoding";
-    homepage = https://sourceforge.net/projects/mp3splt/;
+    homepage = "https://sourceforge.net/projects/mp3splt/";
     license = licenses.gpl2;
     maintainers = [ maintainers.bosu ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/mp3val/default.nix b/pkgs/applications/audio/mp3val/default.nix
index 6c35779f6c4cf..636fb7d9b9a17 100644
--- a/pkgs/applications/audio/mp3val/default.nix
+++ b/pkgs/applications/audio/mp3val/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
       also other MPEG versions and layers. The tool is also aware of the most
       common types of tags (ID3v1, ID3v2, APEv2).
     '';
-    homepage = http://mp3val.sourceforge.net/index.shtml;
+    homepage = "http://mp3val.sourceforge.net/index.shtml";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/audio/mpc/default.nix b/pkgs/applications/audio/mpc/default.nix
index 1e8d73ce560f0..a226b720df9b2 100644
--- a/pkgs/applications/audio/mpc/default.nix
+++ b/pkgs/applications/audio/mpc/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A minimalist command line interface to MPD";
-    homepage = https://www.musicpd.org/clients/mpc/;
+    homepage = "https://www.musicpd.org/clients/mpc/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ algorith ];
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/audio/mpc123/default.nix b/pkgs/applications/audio/mpc123/default.nix
index f024e5a6a1d16..ef5cb169a2cf7 100644
--- a/pkgs/applications/audio/mpc123/default.nix
+++ b/pkgs/applications/audio/mpc123/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = http://mpc123.sourceforge.net/;
+    homepage = "http://mpc123.sourceforge.net/";
 
     description = "A Musepack (.mpc) audio player";
 
diff --git a/pkgs/applications/audio/mpg123/default.nix b/pkgs/applications/audio/mpg123/default.nix
index 6c4b9a4317681..53e66e580da89 100644
--- a/pkgs/applications/audio/mpg123/default.nix
+++ b/pkgs/applications/audio/mpg123/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Fast console MPEG Audio Player and decoder library";
-    homepage = http://mpg123.org;
+    homepage = "http://mpg123.org";
     license = stdenv.lib.licenses.lgpl21;
     maintainers = [ stdenv.lib.maintainers.ftrvxmtrx ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/audio/mpg321/default.nix b/pkgs/applications/audio/mpg321/default.nix
index 08fe9b4f9af15..63b8e2d867a72 100644
--- a/pkgs/applications/audio/mpg321/default.nix
+++ b/pkgs/applications/audio/mpg321/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Command-line MP3 player";
-    homepage = http://mpg321.sourceforge.net/;
+    homepage = "http://mpg321.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = [ maintainers.rycee ];
     platforms = platforms.gnu ++ platforms.linux;
diff --git a/pkgs/applications/audio/mup/default.nix b/pkgs/applications/audio/mup/default.nix
index 43098be12e3f9..347cddca8564a 100644
--- a/pkgs/applications/audio/mup/default.nix
+++ b/pkgs/applications/audio/mup/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = false; # Undeclared dependencies + https://stackoverflow.com/a/19822767/1687334 for prolog.ps.
 
   meta = with stdenv.lib; {
-    homepage = http://www.arkkra.com/;
+    homepage = "http://www.arkkra.com/";
     description = "Music typesetting program (ASCII to PostScript and MIDI)";
     license = licenses.bsd3;
     maintainers = with maintainers; [ orivej ];
diff --git a/pkgs/applications/audio/musescore/darwin.nix b/pkgs/applications/audio/musescore/darwin.nix
index 8b08aed62b8b1..8870a144c9f5a 100644
--- a/pkgs/applications/audio/musescore/darwin.nix
+++ b/pkgs/applications/audio/musescore/darwin.nix
@@ -25,10 +25,10 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software";
-    homepage = https://musescore.org/;
+    homepage = "https://musescore.org/";
     license = licenses.gpl2;
     platforms = platforms.darwin;
     maintainers = with maintainers; [ yurrriq ];
-    repositories.git = https://github.com/musescore/MuseScore;
+    repositories.git = "https://github.com/musescore/MuseScore";
   };
 }
diff --git a/pkgs/applications/audio/musescore/default.nix b/pkgs/applications/audio/musescore/default.nix
index 7ef6328c02c2b..bd4b2db380a3f 100644
--- a/pkgs/applications/audio/musescore/default.nix
+++ b/pkgs/applications/audio/musescore/default.nix
@@ -31,10 +31,10 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software";
-    homepage = https://musescore.org/;
+    homepage = "https://musescore.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ vandenoever ];
     platforms = platforms.linux;
-    repositories.git = https://github.com/musescore/MuseScore;
+    repositories.git = "https://github.com/musescore/MuseScore";
   };
 }
diff --git a/pkgs/applications/audio/musly/default.nix b/pkgs/applications/audio/musly/default.nix
index e7a9e22c2d680..b1e8822cdcf8b 100644
--- a/pkgs/applications/audio/musly/default.nix
+++ b/pkgs/applications/audio/musly/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
   '' else "";
 
   meta = with stdenv.lib; {
-    homepage = https://www.musly.org;
+    homepage = "https://www.musly.org";
     description = "A fast and high-quality audio music similarity library written in C/C++";
     longDescription = ''
       Musly analyzes the the audio signal of music pieces to estimate their similarity.
diff --git a/pkgs/applications/audio/ncmpc/default.nix b/pkgs/applications/audio/ncmpc/default.nix
index c95177cd3821e..c08e4f7f4ffaa 100644
--- a/pkgs/applications/audio/ncmpc/default.nix
+++ b/pkgs/applications/audio/ncmpc/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Curses-based interface for MPD (music player daemon)";
-    homepage    = https://www.musicpd.org/clients/ncmpc/;
+    homepage    = "https://www.musicpd.org/clients/ncmpc/";
     license     = licenses.gpl2Plus;
     platforms   = platforms.all;
     maintainers = with maintainers; [ fpletz ];
diff --git a/pkgs/applications/audio/ncmpcpp/default.nix b/pkgs/applications/audio/ncmpcpp/default.nix
index 2ba36b4a50d92..f8adc522fcb5e 100644
--- a/pkgs/applications/audio/ncmpcpp/default.nix
+++ b/pkgs/applications/audio/ncmpcpp/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A featureful ncurses based MPD client inspired by ncmpc";
-    homepage    = https://ncmpcpp.rybczak.net/;
+    homepage    = "https://ncmpcpp.rybczak.net/";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ jfrankenau koral lovek323 ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/audio/ncpamixer/default.nix b/pkgs/applications/audio/ncpamixer/default.nix
index 53ed9b3297c17..32d8df2f0487f 100644
--- a/pkgs/applications/audio/ncpamixer/default.nix
+++ b/pkgs/applications/audio/ncpamixer/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An ncurses mixer for PulseAudio inspired by pavucontrol";
-    homepage = https://github.com/fulhax/ncpamixer;
+    homepage = "https://github.com/fulhax/ncpamixer";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ StijnDW ];
diff --git a/pkgs/applications/audio/netease-cloud-music/default.nix b/pkgs/applications/audio/netease-cloud-music/default.nix
index 15afe233b3abc..c4cc291d026c9 100644
--- a/pkgs/applications/audio/netease-cloud-music/default.nix
+++ b/pkgs/applications/audio/netease-cloud-music/default.nix
@@ -73,7 +73,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "Client for Netease Cloud Music service";
-    homepage = https://music.163.com;
+    homepage = "https://music.163.com";
     platforms = [ "i686-linux" "x86_64-linux" ];
     maintainers = [ stdenv.lib.maintainers.mlatus ];
     license = stdenv.lib.licenses.unfreeRedistributable;
diff --git a/pkgs/applications/audio/noise-repellent/default.nix b/pkgs/applications/audio/noise-repellent/default.nix
index bc5b35396e239..3b2f233c6afef 100644
--- a/pkgs/applications/audio/noise-repellent/default.nix
+++ b/pkgs/applications/audio/noise-repellent/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An lv2 plugin for broadband noise reduction";
-    homepage    = https://github.com/lucianodato/noise-repellent;
+    homepage    = "https://github.com/lucianodato/noise-repellent";
     license     = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
     platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "i686-darwin"  ];
diff --git a/pkgs/applications/audio/non/default.nix b/pkgs/applications/audio/non/default.nix
index 651db50f0a7bb..9b4b147c2304d 100644
--- a/pkgs/applications/audio/non/default.nix
+++ b/pkgs/applications/audio/non/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Lightweight and lightning fast modular Digital Audio Workstation";
-    homepage = http://non.tuxfamily.org;
+    homepage = "http://non.tuxfamily.org";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/nootka/default.nix b/pkgs/applications/audio/nootka/default.nix
index 4f7b1e7e30f72..b0d4843aecd5d 100644
--- a/pkgs/applications/audio/nootka/default.nix
+++ b/pkgs/applications/audio/nootka/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Application for practicing playing musical scores and ear training";
-    homepage = https://nootka.sourceforge.io/;
+    homepage = "https://nootka.sourceforge.io/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/nootka/unstable.nix b/pkgs/applications/audio/nootka/unstable.nix
index d76fd0835caa5..16df55c1dfba0 100644
--- a/pkgs/applications/audio/nootka/unstable.nix
+++ b/pkgs/applications/audio/nootka/unstable.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Application for practicing playing musical scores and ear training";
-    homepage = https://nootka.sourceforge.io/;
+    homepage = "https://nootka.sourceforge.io/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/normalize/default.nix b/pkgs/applications/audio/normalize/default.nix
index 490ecc967bbfb..0aa2641169325 100644
--- a/pkgs/applications/audio/normalize/default.nix
+++ b/pkgs/applications/audio/normalize/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libmad ];
 
   meta = with stdenv.lib; {
-    homepage = https://www.nongnu.org/normalize/;
+    homepage = "https://www.nongnu.org/normalize/";
     description = "Audio file normalizer";
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/nova-filters/default.nix b/pkgs/applications/audio/nova-filters/default.nix
index 0bb970500bdc5..bc5a3efc59a38 100644
--- a/pkgs/applications/audio/nova-filters/default.nix
+++ b/pkgs/applications/audio/nova-filters/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "nova-filters";
 
   src = fetchurl {
-    url = https://klingt.org/~tim/nova-filters/nova-filters_0.2-2.tar.gz;
+    url = "https://klingt.org/~tim/nova-filters/nova-filters_0.2-2.tar.gz";
     sha256 = "16064vvl2w5lz4xi3lyjk4xx7fphwsxc14ajykvndiz170q32s6i";
   };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "LADSPA plugins based on filters of nova";
-    homepage = http://klingt.org/~tim/nova-filters/;
+    homepage = "http://klingt.org/~tim/nova-filters/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/openmpt123/default.nix b/pkgs/applications/audio/openmpt123/default.nix
index 24ac52e7e3112..aebc7dc7baa71 100644
--- a/pkgs/applications/audio/openmpt123/default.nix
+++ b/pkgs/applications/audio/openmpt123/default.nix
@@ -23,7 +23,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A cross-platform command-line based module file player";
-    homepage = https://lib.openmpt.org/libopenmpt/;
+    homepage = "https://lib.openmpt.org/libopenmpt/";
     license = licenses.bsd3;
     maintainers = with maintainers; [ gnidorah ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/opus-tools/default.nix b/pkgs/applications/audio/opus-tools/default.nix
index 69fa75d85f4d1..9d95c362d9285 100644
--- a/pkgs/applications/audio/opus-tools/default.nix
+++ b/pkgs/applications/audio/opus-tools/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Tools to work with opus encoded audio streams";
-    homepage = http://www.opus-codec.org/;
+    homepage = "http://www.opus-codec.org/";
     license = stdenv.lib.licenses.bsd2;
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = with stdenv.lib.platforms; unix;
diff --git a/pkgs/applications/audio/opusfile/default.nix b/pkgs/applications/audio/opusfile/default.nix
index 25636863793f0..c09b3f415d869 100644
--- a/pkgs/applications/audio/opusfile/default.nix
+++ b/pkgs/applications/audio/opusfile/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "High-level API for decoding and seeking in .opus files";
-    homepage = http://www.opus-codec.org/;
+    homepage = "http://www.opus-codec.org/";
     license = licenses.bsd3;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/audio/pamix/default.nix b/pkgs/applications/audio/pamix/default.nix
index 2507f08e9e599..cc5d84d9471b1 100644
--- a/pkgs/applications/audio/pamix/default.nix
+++ b/pkgs/applications/audio/pamix/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Pulseaudio terminal mixer";
-    homepage    = https://github.com/patroclos/PAmix;
+    homepage    = "https://github.com/patroclos/PAmix";
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ ericsagnes ];
diff --git a/pkgs/applications/audio/pamixer/default.nix b/pkgs/applications/audio/pamixer/default.nix
index 7c45209678508..71d8524859915 100644
--- a/pkgs/applications/audio/pamixer/default.nix
+++ b/pkgs/applications/audio/pamixer/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
         - Increase / Decrease the volume for a device
         - Mute or unmute a device
     '';
-    homepage = https://github.com/cdemoulins/pamixer;
+    homepage = "https://github.com/cdemoulins/pamixer";
     license = licenses.gpl3;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/paprefs/default.nix b/pkgs/applications/audio/paprefs/default.nix
index 9c59b5466c747..b5ec1206ce3da 100644
--- a/pkgs/applications/audio/paprefs/default.nix
+++ b/pkgs/applications/audio/paprefs/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
       dialog for the PulseAudio sound server.
     '';
 
-    homepage = http://freedesktop.org/software/pulseaudio/paprefs/;
+    homepage = "http://freedesktop.org/software/pulseaudio/paprefs/";
 
     license = licenses.gpl2Plus;
 
diff --git a/pkgs/applications/audio/patchage/default.nix b/pkgs/applications/audio/patchage/default.nix
index e7c4cab9af18f..ac679d6dd9499 100644
--- a/pkgs/applications/audio/patchage/default.nix
+++ b/pkgs/applications/audio/patchage/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   pname = "patchage";
   version = "1.0.1";
   src = fetchsvn {
-    url = http://svn.drobilla.net/lad/trunk/patchage/;
+    url = "http://svn.drobilla.net/lad/trunk/patchage/";
     rev = "5821";
     sha256 = "1ar64l0sg468qzxj7i6ppgfqjpm92awcp5lzskamrf3ln17lrgj7";
   };
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Modular patch bay for Jack and ALSA systems";
-    homepage = http://non.tuxfamily.org;
+    homepage = "http://non.tuxfamily.org";
     license = stdenv.lib.licenses.lgpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/paulstretch/default.nix b/pkgs/applications/audio/paulstretch/default.nix
index b9a3f39affb17..f6cee7672f7ca 100644
--- a/pkgs/applications/audio/paulstretch/default.nix
+++ b/pkgs/applications/audio/paulstretch/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation {
       special effects by "spectral smoothing" the sounds.
       It can transform any sound/music to a texture.
     '';
-    homepage = http://hypermammut.sourceforge.net/paulstretch/;
+    homepage = "http://hypermammut.sourceforge.net/paulstretch/";
     platforms = platforms.linux;
     license = licenses.gpl2;
   };
diff --git a/pkgs/applications/audio/pavucontrol/default.nix b/pkgs/applications/audio/pavucontrol/default.nix
index d07cf8a476b5b..301e44168d39b 100644
--- a/pkgs/applications/audio/pavucontrol/default.nix
+++ b/pkgs/applications/audio/pavucontrol/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       easily control the volume of all clients, sinks, etc.
     '';
 
-    homepage = http://freedesktop.org/software/pulseaudio/pavucontrol/;
+    homepage = "http://freedesktop.org/software/pulseaudio/pavucontrol/";
 
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/applications/audio/pd-plugins/cyclone/default.nix b/pkgs/applications/audio/pd-plugins/cyclone/default.nix
index 6440f6e787ffa..56f1ec518de01 100644
--- a/pkgs/applications/audio/pd-plugins/cyclone/default.nix
+++ b/pkgs/applications/audio/pd-plugins/cyclone/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A library of PureData classes, bringing some level of compatibility between Max/MSP and Pd environments";
-    homepage = http://puredata.info/downloads/cyclone;
+    homepage = "http://puredata.info/downloads/cyclone";
     license = stdenv.lib.licenses.tcltk;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/helmholtz/default.nix b/pkgs/applications/audio/pd-plugins/helmholtz/default.nix
index 6c7a4b03ef59d..be5a385d3088f 100644
--- a/pkgs/applications/audio/pd-plugins/helmholtz/default.nix
+++ b/pkgs/applications/audio/pd-plugins/helmholtz/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Time domain pitch tracker for Pure Data";
-    homepage = http://www.katjaas.nl/helmholtz/helmholtz.html;
+    homepage = "http://www.katjaas.nl/helmholtz/helmholtz.html";
     license = stdenv.lib.licenses.bsd3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/maxlib/default.nix b/pkgs/applications/audio/pd-plugins/maxlib/default.nix
index 21ba375200bc6..aec793c4ee8ad 100644
--- a/pkgs/applications/audio/pd-plugins/maxlib/default.nix
+++ b/pkgs/applications/audio/pd-plugins/maxlib/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A library of non-tilde externals for puredata, by Miller Puckette";
-    homepage = http://puredata.info/downloads/maxlib;
+    homepage = "http://puredata.info/downloads/maxlib";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/mrpeach/default.nix b/pkgs/applications/audio/pd-plugins/mrpeach/default.nix
index 028a4667cb2da..cefee430ad5ff 100644
--- a/pkgs/applications/audio/pd-plugins/mrpeach/default.nix
+++ b/pkgs/applications/audio/pd-plugins/mrpeach/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A collection of Pd objectclasses for OSC-messages";
-    homepage = http://puredata.info/downloads/osc;
+    homepage = "http://puredata.info/downloads/osc";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/puremapping/default.nix b/pkgs/applications/audio/pd-plugins/puremapping/default.nix
index c214d3fcf4050..7a5014664d556 100644
--- a/pkgs/applications/audio/pd-plugins/puremapping/default.nix
+++ b/pkgs/applications/audio/pd-plugins/puremapping/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Set of externals to facilitate the use of sensors within Pure Data and to create complex relations between input and output of a dynamic system";
-    homepage = http://www.chnry.net/ch/?090-Pure-Mapping&lang=en;
+    homepage = "http://www.chnry.net/ch/?090-Pure-Mapping&lang=en";
     license = stdenv.lib.licenses.gpl1;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/timbreid/default.nix b/pkgs/applications/audio/pd-plugins/timbreid/default.nix
index fa9660fbbf61a..e68610a022691 100644
--- a/pkgs/applications/audio/pd-plugins/timbreid/default.nix
+++ b/pkgs/applications/audio/pd-plugins/timbreid/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A collection of audio feature analysis externals for puredata";
-    homepage = http://williambrent.conflations.com/pages/research.html;
+    homepage = "http://williambrent.conflations.com/pages/research.html";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/zexy/default.nix b/pkgs/applications/audio/pd-plugins/zexy/default.nix
index cc307417c061f..4f82690813627 100644
--- a/pkgs/applications/audio/pd-plugins/zexy/default.nix
+++ b/pkgs/applications/audio/pd-plugins/zexy/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The swiss army knife for puredata";
-    homepage = http://puredata.info/downloads/zexy;
+    homepage = "http://puredata.info/downloads/zexy";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/petrifoo/default.nix b/pkgs/applications/audio/petrifoo/default.nix
index 8bbeffb1f7a32..322eba2b9521a 100644
--- a/pkgs/applications/audio/petrifoo/default.nix
+++ b/pkgs/applications/audio/petrifoo/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation  rec {
   meta = with stdenv.lib; {
     description = "MIDI controllable audio sampler";
     longDescription = "a fork of Specimen";
-    homepage = http://petri-foo.sourceforge.net;
+    homepage = "http://petri-foo.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/pianobooster/default.nix b/pkgs/applications/audio/pianobooster/default.nix
index bbf64a4325b09..4832fce1e9626 100644
--- a/pkgs/applications/audio/pianobooster/default.nix
+++ b/pkgs/applications/audio/pianobooster/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A MIDI file player that teaches you how to play the piano";
-    homepage = https://github.com/captnfab/PianoBooster;
+    homepage = "https://github.com/captnfab/PianoBooster";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ goibhniu orivej ];
diff --git a/pkgs/applications/audio/pithos/default.nix b/pkgs/applications/audio/pithos/default.nix
index 20a6e928cefbd..6c3ffebc8c955 100644
--- a/pkgs/applications/audio/pithos/default.nix
+++ b/pkgs/applications/audio/pithos/default.nix
@@ -29,7 +29,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Pandora Internet Radio player for GNOME";
-    homepage = https://pithos.github.io/;
+    homepage = "https://pithos.github.io/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ obadz ];
   };
diff --git a/pkgs/applications/audio/playbar2/default.nix b/pkgs/applications/audio/playbar2/default.nix
index 8c21dc8f2ad71..15385e91927c6 100644
--- a/pkgs/applications/audio/playbar2/default.nix
+++ b/pkgs/applications/audio/playbar2/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Mpris2 Client for Plasma5";
-    homepage = https://github.com/audoban/PlayBar2;
+    homepage = "https://github.com/audoban/PlayBar2";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pjones ];
diff --git a/pkgs/applications/audio/plugin-torture/default.nix b/pkgs/applications/audio/plugin-torture/default.nix
index f444ad6cb3236..3c852cf450e93 100644
--- a/pkgs/applications/audio/plugin-torture/default.nix
+++ b/pkgs/applications/audio/plugin-torture/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/cth103/plugin-torture;
+    homepage = "https://github.com/cth103/plugin-torture";
     description = "A tool to test LADSPA and LV2 plugins";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/pmidi/default.nix b/pkgs/applications/audio/pmidi/default.nix
index f9b3fbae21370..0da86ca9bd1a7 100644
--- a/pkgs/applications/audio/pmidi/default.nix
+++ b/pkgs/applications/audio/pmidi/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   buildInputs = [ alsaLib ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.parabola.me.uk/alsa/pmidi.html;
+    homepage = "http://www.parabola.me.uk/alsa/pmidi.html";
     description = "A straightforward command line program to play midi files through the ALSA sequencer";
     maintainers = with maintainers; [ lheckemann ];
     license = licenses.gpl2;
diff --git a/pkgs/applications/audio/ponymix/default.nix b/pkgs/applications/audio/ponymix/default.nix
index 6d168ec566187..6c289a97384f7 100644
--- a/pkgs/applications/audio/ponymix/default.nix
+++ b/pkgs/applications/audio/ponymix/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "CLI PulseAudio Volume Control";
-    homepage = https://github.com/falconindy/ponymix;
+    homepage = "https://github.com/falconindy/ponymix";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ ericsagnes ];
diff --git a/pkgs/applications/audio/praat/default.nix b/pkgs/applications/audio/praat/default.nix
index 9414f4211d7a2..2fb8e30a64d8b 100644
--- a/pkgs/applications/audio/praat/default.nix
+++ b/pkgs/applications/audio/praat/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Doing phonetics by computer";
-    homepage = http://www.fon.hum.uva.nl/praat/;
+    homepage = "http://www.fon.hum.uva.nl/praat/";
     license = stdenv.lib.licenses.gpl2Plus; # Has some 3rd-party code in it though
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/audio/projectm/default.nix b/pkgs/applications/audio/projectm/default.nix
index 347774010ae1f..205a3ad287e93 100644
--- a/pkgs/applications/audio/projectm/default.nix
+++ b/pkgs/applications/audio/projectm/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Music Visualizer";
-    homepage = http://projectm.sourceforge.net/;
+    homepage = "http://projectm.sourceforge.net/";
     license = stdenv.lib.licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.linux;
   };
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
   };
 
   patch_gcc6 = fetchpatch {
-    url = https://raw.githubusercontent.com/gentoo/gentoo/45abd63abc6644b6e177c057b5b42d894dbf8e29/media-libs/libprojectm/files/libprojectm-2.1.0-fix-c++14.patch;
+    url = "https://raw.githubusercontent.com/gentoo/gentoo/45abd63abc6644b6e177c057b5b42d894dbf8e29/media-libs/libprojectm/files/libprojectm-2.1.0-fix-c++14.patch";
     sha256 = "1i50scxv1jlqvb3jm3sql89a7wqckxhlpvnhz20vvmm1kii6lrsn";
   };
 
diff --git a/pkgs/applications/audio/puddletag/default.nix b/pkgs/applications/audio/puddletag/default.nix
index 3a6cd298557f8..a0813fa0c8018 100644
--- a/pkgs/applications/audio/puddletag/default.nix
+++ b/pkgs/applications/audio/puddletag/default.nix
@@ -29,7 +29,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "An audio tag editor similar to the Windows program, Mp3tag";
-    homepage    = https://docs.puddletag.net;
+    homepage    = "https://docs.puddletag.net";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ peterhoeg ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/audio/pulseaudio-ctl/default.nix b/pkgs/applications/audio/pulseaudio-ctl/default.nix
index 6b7d242e1f6d0..125dafc132e07 100644
--- a/pkgs/applications/audio/pulseaudio-ctl/default.nix
+++ b/pkgs/applications/audio/pulseaudio-ctl/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Control pulseaudio volume from the shell or mapped to keyboard shortcuts. No need for alsa-utils.";
-    homepage = https://bbs.archlinux.org/viewtopic.php?id=124513;
+    homepage = "https://bbs.archlinux.org/viewtopic.php?id=124513";
     license = licenses.mit;
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix b/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix
index 328bd8b0b041b..efe39aa1600ee 100644
--- a/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix
+++ b/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix
@@ -23,7 +23,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "A pure python implementation of multicast DNS service discovery";
-    homepage = https://github.com/jstasiak/python-zeroconf;
+    homepage = "https://github.com/jstasiak/python-zeroconf";
     license = licenses.lgpl21;
     maintainers = [ ];
   };
diff --git a/pkgs/applications/audio/pulseaudio-modules-bt/default.nix b/pkgs/applications/audio/pulseaudio-modules-bt/default.nix
index b8082c12c644e..2511cf0f20a54 100644
--- a/pkgs/applications/audio/pulseaudio-modules-bt/default.nix
+++ b/pkgs/applications/audio/pulseaudio-modules-bt/default.nix
@@ -75,7 +75,7 @@ in stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/EHfive/pulseaudio-modules-bt;
+    homepage = "https://github.com/EHfive/pulseaudio-modules-bt";
     description = "LDAC, aptX, aptX HD, AAC codecs (A2DP Audio) support for Linux PulseAudio";
     platforms = platforms.linux;
     license = licenses.mit;
diff --git a/pkgs/applications/audio/pulseeffects/default.nix b/pkgs/applications/audio/pulseeffects/default.nix
index 82dd0223bc806..2972849a2d417 100644
--- a/pkgs/applications/audio/pulseeffects/default.nix
+++ b/pkgs/applications/audio/pulseeffects/default.nix
@@ -101,7 +101,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Limiter, compressor, reverberation, equalizer and auto volume effects for Pulseaudio applications";
-    homepage = https://github.com/wwmm/pulseeffects;
+    homepage = "https://github.com/wwmm/pulseeffects";
     license = licenses.gpl3;
     maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/puredata/default.nix b/pkgs/applications/audio/puredata/default.nix
index 5886a465409a1..9880a65d0cac5 100644
--- a/pkgs/applications/audio/puredata/default.nix
+++ b/pkgs/applications/audio/puredata/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation  rec {
   meta = with stdenv.lib; {
     description = ''A real-time graphical programming environment for
                     audio, video, and graphical processing'';
-    homepage = http://puredata.info;
+    homepage = "http://puredata.info";
     license = licenses.bsd3;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/qjackctl/default.nix b/pkgs/applications/audio/qjackctl/default.nix
index 753f6fe8206e3..54bbbf0537736 100644
--- a/pkgs/applications/audio/qjackctl/default.nix
+++ b/pkgs/applications/audio/qjackctl/default.nix
@@ -26,7 +26,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A Qt application to control the JACK sound server daemon";
-    homepage = http://qjackctl.sourceforge.net/;
+    homepage = "http://qjackctl.sourceforge.net/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/qmidinet/default.nix b/pkgs/applications/audio/qmidinet/default.nix
index 2b79818543f81..10cbcb5d5b196 100644
--- a/pkgs/applications/audio/qmidinet/default.nix
+++ b/pkgs/applications/audio/qmidinet/default.nix
@@ -17,7 +17,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "A MIDI network gateway application that sends and receives MIDI data (ALSA Sequencer and/or JACK MIDI) over the network";
-    homepage = http://qmidinet.sourceforge.net/;
+    homepage = "http://qmidinet.sourceforge.net/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/qmmp/default.nix b/pkgs/applications/audio/qmmp/default.nix
index 6cc731710b7f2..fe7b9f8ba66e7 100644
--- a/pkgs/applications/audio/qmmp/default.nix
+++ b/pkgs/applications/audio/qmmp/default.nix
@@ -59,6 +59,6 @@ mkDerivation rec {
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
-    repositories.svn = http://qmmp.googlecode.com/svn/;
+    repositories.svn = "http://qmmp.googlecode.com/svn/";
   };
 }
diff --git a/pkgs/applications/audio/qsampler/default.nix b/pkgs/applications/audio/qsampler/default.nix
index 33411002c23be..1f65b37483814 100644
--- a/pkgs/applications/audio/qsampler/default.nix
+++ b/pkgs/applications/audio/qsampler/default.nix
@@ -18,7 +18,7 @@ mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.linuxsampler.org;
+    homepage = "http://www.linuxsampler.org";
     description = "Graphical frontend to LinuxSampler";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/qsynth/default.nix b/pkgs/applications/audio/qsynth/default.nix
index 29f5704c73025..8235a2835fb61 100644
--- a/pkgs/applications/audio/qsynth/default.nix
+++ b/pkgs/applications/audio/qsynth/default.nix
@@ -19,7 +19,7 @@ mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Fluidsynth GUI";
-    homepage = https://sourceforge.net/projects/qsynth;
+    homepage = "https://sourceforge.net/projects/qsynth";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/qtractor/default.nix b/pkgs/applications/audio/qtractor/default.nix
index 8cb9f8dccb849..523a743ef3bb5 100644
--- a/pkgs/applications/audio/qtractor/default.nix
+++ b/pkgs/applications/audio/qtractor/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Audio/MIDI multi-track sequencer";
-    homepage = http://qtractor.sourceforge.net;
+    homepage = "http://qtractor.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/qtscrobbler/default.nix b/pkgs/applications/audio/qtscrobbler/default.nix
index 68e8e6402acf5..5b84989a7c41f 100644
--- a/pkgs/applications/audio/qtscrobbler/default.nix
+++ b/pkgs/applications/audio/qtscrobbler/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       It is able to gather this information from Apple iPods or DAPs running the Rockbox replacement firmware.
     '';
 
-    homepage = http://qtscrob.sourceforge.net;
+    homepage = "http://qtscrob.sourceforge.net";
     license = licenses.gpl2;
     maintainers = [ maintainers.vanzef ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/quodlibet/default.nix b/pkgs/applications/audio/quodlibet/default.nix
index 597cf68f4d09e..704e20cc8c563 100644
--- a/pkgs/applications/audio/quodlibet/default.nix
+++ b/pkgs/applications/audio/quodlibet/default.nix
@@ -74,6 +74,6 @@ python3.pkgs.buildPythonApplication rec {
     '';
 
     maintainers = with maintainers; [ coroa sauyon ];
-    homepage = https://quodlibet.readthedocs.io/en/latest/;
+    homepage = "https://quodlibet.readthedocs.io/en/latest/";
   };
 }
diff --git a/pkgs/applications/audio/radiotray-ng/default.nix b/pkgs/applications/audio/radiotray-ng/default.nix
index a64e407b39b88..014906594a7d5 100644
--- a/pkgs/applications/audio/radiotray-ng/default.nix
+++ b/pkgs/applications/audio/radiotray-ng/default.nix
@@ -92,7 +92,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An internet radio player for linux";
-    homepage = https://github.com/ebruck/radiotray-ng;
+    homepage = "https://github.com/ebruck/radiotray-ng";
     license = licenses.gpl3;
     maintainers = with maintainers; [ dtzWill ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/rakarrack/default.nix b/pkgs/applications/audio/rakarrack/default.nix
index 36302458a75b0..4548f9ba624fa 100644
--- a/pkgs/applications/audio/rakarrack/default.nix
+++ b/pkgs/applications/audio/rakarrack/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Multi-effects processor emulating a guitar effects pedalboard";
-    homepage = http://rakarrack.sourceforge.net;
+    homepage = "http://rakarrack.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/reaper/default.nix b/pkgs/applications/audio/reaper/default.nix
index 236c42b529305..2e63a3e8c7cda 100644
--- a/pkgs/applications/audio/reaper/default.nix
+++ b/pkgs/applications/audio/reaper/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Digital audio workstation";
-    homepage = https://www.reaper.fm/;
+    homepage = "https://www.reaper.fm/";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/audio/renoise/default.nix b/pkgs/applications/audio/renoise/default.nix
index 2fb1943e0e577..1cbd5b3afa28f 100644
--- a/pkgs/applications/audio/renoise/default.nix
+++ b/pkgs/applications/audio/renoise/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Modern tracker-based DAW";
-    homepage = https://www.renoise.com/;
+    homepage = "https://www.renoise.com/";
     license = licenses.unfree;
     maintainers = [];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/audio/rhvoice/default.nix b/pkgs/applications/audio/rhvoice/default.nix
index 59a8b6ec8c492..7a0a8a59a084e 100644
--- a/pkgs/applications/audio/rhvoice/default.nix
+++ b/pkgs/applications/audio/rhvoice/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "A free and open source speech synthesizer for Russian language and others";
-    homepage = https://github.com/Olga-Yakovleva/RHVoice/wiki;
+    homepage = "https://github.com/Olga-Yakovleva/RHVoice/wiki";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ berce ];
     platforms = with lib.platforms; all;
diff --git a/pkgs/applications/audio/rhythmbox/default.nix b/pkgs/applications/audio/rhythmbox/default.nix
index b6bff79fa03a1..79560451e540c 100644
--- a/pkgs/applications/audio/rhythmbox/default.nix
+++ b/pkgs/applications/audio/rhythmbox/default.nix
@@ -58,7 +58,7 @@ in stdenv.mkDerivation rec {
   };
 
   meta = with stdenv.lib; {
-    homepage = https://wiki.gnome.org/Apps/Rhythmbox;
+    homepage = "https://wiki.gnome.org/Apps/Rhythmbox";
     description = "A music playing application for GNOME";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/rkrlv2/default.nix b/pkgs/applications/audio/rkrlv2/default.nix
index 0ff23102e7552..59979c4108386 100644
--- a/pkgs/applications/audio/rkrlv2/default.nix
+++ b/pkgs/applications/audio/rkrlv2/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Rakarrak effects ported to LV2";
-    homepage = https://github.com/ssj71/rkrlv2;
+    homepage = "https://github.com/ssj71/rkrlv2";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.joelmo ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/rosegarden/default.nix b/pkgs/applications/audio/rosegarden/default.nix
index 3d9342f16caa5..921c8fff67a19 100644
--- a/pkgs/applications/audio/rosegarden/default.nix
+++ b/pkgs/applications/audio/rosegarden/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation (rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://www.rosegardenmusic.com/;
+    homepage = "https://www.rosegardenmusic.com/";
     description = "Music composition and editing environment";
     longDescription = ''
       Rosegarden is a music composition and editing environment based around
diff --git a/pkgs/applications/audio/schismtracker/default.nix b/pkgs/applications/audio/schismtracker/default.nix
index f902b2dd41b0e..b50dd78ff1ac1 100644
--- a/pkgs/applications/audio/schismtracker/default.nix
+++ b/pkgs/applications/audio/schismtracker/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Music tracker application, free reimplementation of Impulse Tracker";
-    homepage = http://schismtracker.org/;
+    homepage = "http://schismtracker.org/";
     license = stdenv.lib.licenses.gpl2;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = [ stdenv.lib.maintainers.ftrvxmtrx ];
diff --git a/pkgs/applications/audio/seq24/default.nix b/pkgs/applications/audio/seq24/default.nix
index 9bab024f021e5..c8347d70b1d93 100644
--- a/pkgs/applications/audio/seq24/default.nix
+++ b/pkgs/applications/audio/seq24/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Minimal loop based midi sequencer";
-    homepage = http://www.filter24.org/seq24;
+    homepage = "http://www.filter24.org/seq24";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ goibhniu ];
diff --git a/pkgs/applications/audio/shntool/default.nix b/pkgs/applications/audio/shntool/default.nix
index e3bfc60a40a5f..de18f3c2ce8d3 100644
--- a/pkgs/applications/audio/shntool/default.nix
+++ b/pkgs/applications/audio/shntool/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "shntool";
 
   src = fetchurl {
-    url = http://www.etree.org/shnutils/shntool/dist/src/shntool-3.0.10.tar.gz;
+    url = "http://www.etree.org/shnutils/shntool/dist/src/shntool-3.0.10.tar.gz";
     sha256 = "00i1rbjaaws3drkhiczaign3lnbhr161b7rbnjr8z83w8yn2wc3l";
   };
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Multi-purpose WAVE data processing and reporting utility";
-    homepage = http://www.etree.org/shnutils/shntool/;
+    homepage = "http://www.etree.org/shnutils/shntool/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.all;
     maintainers = with stdenv.lib.maintainers; [ jcumming ];
diff --git a/pkgs/applications/audio/sidplayfp/default.nix b/pkgs/applications/audio/sidplayfp/default.nix
index aff8c173d9f2b..b0a50bbf128e9 100644
--- a/pkgs/applications/audio/sidplayfp/default.nix
+++ b/pkgs/applications/audio/sidplayfp/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A SID player using libsidplayfp";
-    homepage = https://sourceforge.net/projects/sidplay-residfp/;
+    homepage = "https://sourceforge.net/projects/sidplay-residfp/";
     license = with licenses; [ gpl2Plus ];
     maintainers = with maintainers; [ dezgeg ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/audio/sisco.lv2/default.nix b/pkgs/applications/audio/sisco.lv2/default.nix
index f95655f5e9a35..07215fc42f87f 100644
--- a/pkgs/applications/audio/sisco.lv2/default.nix
+++ b/pkgs/applications/audio/sisco.lv2/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple audio oscilloscope with variable time scale, triggering, cursors and numeric readout in LV2 plugin format";
-    homepage = http://x42.github.io/sisco.lv2/;
+    homepage = "http://x42.github.io/sisco.lv2/";
     license = licenses.gpl2;
     maintainers = [ maintainers.e-user ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/snapcast/default.nix b/pkgs/applications/audio/snapcast/default.nix
index 21a36cecbe549..531a633f05da9 100644
--- a/pkgs/applications/audio/snapcast/default.nix
+++ b/pkgs/applications/audio/snapcast/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Synchronous multi-room audio player";
-    homepage = https://github.com/badaix/snapcast;
+    homepage = "https://github.com/badaix/snapcast";
     maintainers = with maintainers; [ fpletz ];
     license = licenses.gpl3;
   };
diff --git a/pkgs/applications/audio/sndpeek/default.nix b/pkgs/applications/audio/sndpeek/default.nix
index 376aadc7385b6..d239fda11aee4 100644
--- a/pkgs/applications/audio/sndpeek/default.nix
+++ b/pkgs/applications/audio/sndpeek/default.nix
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
          * available on MacOS X, Linux, and Windows under GPL
          * part of the sndtools distribution.
     '';
-    homepage = https://soundlab.cs.princeton.edu/software/sndpeek/;
+    homepage = "https://soundlab.cs.princeton.edu/software/sndpeek/";
     license = licenses.gpl2;
     maintainers = [ maintainers.laikq ];
   };
diff --git a/pkgs/applications/audio/sonata/default.nix b/pkgs/applications/audio/sonata/default.nix
index b9293fe27294b..68eefadf41108 100644
--- a/pkgs/applications/audio/sonata/default.nix
+++ b/pkgs/applications/audio/sonata/default.nix
@@ -61,7 +61,7 @@ in buildPythonApplication rec {
        - Commandline control
        - Available in 24 languages
     '';
-    homepage = https://www.nongnu.org/sonata/;
+    homepage = "https://www.nongnu.org/sonata/";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.rvl ];
diff --git a/pkgs/applications/audio/sonic-lineup/default.nix b/pkgs/applications/audio/sonic-lineup/default.nix
index 93b4c2dade4d8..b837eb07cf1be 100644
--- a/pkgs/applications/audio/sonic-lineup/default.nix
+++ b/pkgs/applications/audio/sonic-lineup/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Comparative visualisation of related audio recordings";
-    homepage = https://www.sonicvisualiser.org/sonic-lineup/;
+    homepage = "https://www.sonicvisualiser.org/sonic-lineup/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.vandenoever ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/sonic-visualiser/default.nix b/pkgs/applications/audio/sonic-visualiser/default.nix
index f7803098066d2..e8b6a4d4313b8 100644
--- a/pkgs/applications/audio/sonic-visualiser/default.nix
+++ b/pkgs/applications/audio/sonic-visualiser/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "View and analyse contents of music audio files";
-    homepage = https://www.sonicvisualiser.org/;
+    homepage = "https://www.sonicvisualiser.org/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu maintainers.marcweber ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/sooperlooper/default.nix b/pkgs/applications/audio/sooperlooper/default.nix
index 768b40a113883..3fb111db85172 100644
--- a/pkgs/applications/audio/sooperlooper/default.nix
+++ b/pkgs/applications/audio/sooperlooper/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
     '';
 
     version = version;
-    homepage = http://essej.net/sooperlooper/index.html;
+    homepage = "http://essej.net/sooperlooper/index.html";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/sorcer/default.nix b/pkgs/applications/audio/sorcer/default.nix
index 5d8ae0928c907..7601f942868fc 100644
--- a/pkgs/applications/audio/sorcer/default.nix
+++ b/pkgs/applications/audio/sorcer/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://openavproductions.com/sorcer/;
+    homepage = "http://openavproductions.com/sorcer/";
     description = "A wavetable LV2 plugin synth, targeted at the electronic / dubstep genre";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/sound-juicer/default.nix b/pkgs/applications/audio/sound-juicer/default.nix
index 20c8a83676ef0..dcad0cec1e81a 100644
--- a/pkgs/applications/audio/sound-juicer/default.nix
+++ b/pkgs/applications/audio/sound-juicer/default.nix
@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec{
 
   meta = with stdenv.lib; {
     description = "A Gnome CD Ripper";
-    homepage = https://wiki.gnome.org/Apps/SoundJuicer;
+    homepage = "https://wiki.gnome.org/Apps/SoundJuicer";
     maintainers = [ maintainers.bdimcheff ];
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/soundscape-renderer/default.nix b/pkgs/applications/audio/soundscape-renderer/default.nix
index 5b5f01eef5cc8..741211bd90d7b 100644
--- a/pkgs/applications/audio/soundscape-renderer/default.nix
+++ b/pkgs/applications/audio/soundscape-renderer/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   version = "2016-11-03";
 
   src = fetchgit {
-    url = https://github.com/SoundScapeRenderer/ssr;
+    url = "https://github.com/SoundScapeRenderer/ssr";
     rev = "0dd0136dd24e47b63d8a4e05de467f5c7b047ec9";
     sha256 = "095x2spv9bmg6pi71mpajnghbqj58ziflg16f9854awx0qp9d8x7";
   };
@@ -45,7 +45,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://spatialaudio.net/ssr/;
+    homepage = "http://spatialaudio.net/ssr/";
     description = "The SoundScape Renderer (SSR) is a tool for real-time spatial audio reproduction";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.fridh ];
diff --git a/pkgs/applications/audio/spectmorph/default.nix b/pkgs/applications/audio/spectmorph/default.nix
index a4f48aa0c21c8..d8209dad02de6 100644
--- a/pkgs/applications/audio/spectmorph/default.nix
+++ b/pkgs/applications/audio/spectmorph/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Allows to analyze samples of musical instruments, and to combine them (morphing) to construct hybrid sounds";
-    homepage = http://spectmorph.org;
+    homepage = "http://spectmorph.org";
     license = licenses.gpl3;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/spectrojack/default.nix b/pkgs/applications/audio/spectrojack/default.nix
index 4c1682b1e0b8f..35534750d0c6c 100644
--- a/pkgs/applications/audio/spectrojack/default.nix
+++ b/pkgs/applications/audio/spectrojack/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A little spectrogram/audiogram/sonogram/whatever for JACK";
-    homepage = http://sed.free.fr/spectrojack;
+    homepage = "http://sed.free.fr/spectrojack";
     license = stdenv.lib.licenses.publicDomain;
     maintainers = with stdenv.lib.maintainers; [ sleexyz ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/audio/speech-denoiser/default.nix b/pkgs/applications/audio/speech-denoiser/default.nix
index 6598d24fb07a5..706a6956c5d25 100644
--- a/pkgs/applications/audio/speech-denoiser/default.nix
+++ b/pkgs/applications/audio/speech-denoiser/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation  {
 
   meta = with stdenv.lib; {
     description = "Speech denoise lv2 plugin based on RNNoise library";
-    homepage = https://github.com/lucianodato/speech-denoiser;
+    homepage = "https://github.com/lucianodato/speech-denoiser";
     license = licenses.lgpl3;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/spek/default.nix b/pkgs/applications/audio/spek/default.nix
index f4922e388c46f..88b22c59ae508 100644
--- a/pkgs/applications/audio/spek/default.nix
+++ b/pkgs/applications/audio/spek/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Analyse your audio files by showing their spectrogram";
-    homepage = http://spek.cc/;
+    homepage = "http://spek.cc/";
     license = licenses.gpl3;
     platforms = platforms.all;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/audio/split2flac/default.nix b/pkgs/applications/audio/split2flac/default.nix
index 3c9565df9199b..efad434e30796 100644
--- a/pkgs/applications/audio/split2flac/default.nix
+++ b/pkgs/applications/audio/split2flac/default.nix
@@ -54,7 +54,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Split flac/ape/wv/wav + cue sheet into separate tracks";
-    homepage = https://github.com/ftrvxmtrx/split2flac;
+    homepage = "https://github.com/ftrvxmtrx/split2flac";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/audio/spotify-tui/default.nix b/pkgs/applications/audio/spotify-tui/default.nix
index 65dfc50fe1b11..5f9cf2720cdaa 100644
--- a/pkgs/applications/audio/spotify-tui/default.nix
+++ b/pkgs/applications/audio/spotify-tui/default.nix
@@ -20,7 +20,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Spotify for the terminal written in Rust";
-    homepage = https://github.com/Rigellute/spotify-tui;
+    homepage = "https://github.com/Rigellute/spotify-tui";
     changelog = "https://github.com/Rigellute/spotify-tui/releases/tag/v${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ jwijenbergh ];
diff --git a/pkgs/applications/audio/spotify/default.nix b/pkgs/applications/audio/spotify/default.nix
index eb2055ec7c195..245d96dee0184 100644
--- a/pkgs/applications/audio/spotify/default.nix
+++ b/pkgs/applications/audio/spotify/default.nix
@@ -158,7 +158,7 @@ stdenv.mkDerivation {
     '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.spotify.com/;
+    homepage = "https://www.spotify.com/";
     description = "Play music from the Spotify music service";
     license = licenses.unfree;
     maintainers = with maintainers; [ eelco ftrvxmtrx sheenobu mudri timokau ma27 ];
diff --git a/pkgs/applications/audio/spotifywm/default.nix b/pkgs/applications/audio/spotifywm/default.nix
index 2380c8e5d9edc..a51e82f29c4bc 100644
--- a/pkgs/applications/audio/spotifywm/default.nix
+++ b/pkgs/applications/audio/spotifywm/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dasJ/spotifywm;
+    homepage = "https://github.com/dasJ/spotifywm";
     description = "Wrapper around Spotify that correctly sets class name before opening the window";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/squeezelite/default.nix b/pkgs/applications/audio/squeezelite/default.nix
index ce0153e9f26ea..de135706ad3f8 100644
--- a/pkgs/applications/audio/squeezelite/default.nix
+++ b/pkgs/applications/audio/squeezelite/default.nix
@@ -62,7 +62,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Lightweight headless squeezebox client emulator";
-    homepage = https://github.com/ralph-irving/squeezelite;
+    homepage = "https://github.com/ralph-irving/squeezelite";
     license = with licenses; [ gpl3 ] ++ optional dsdSupport bsd2;
     maintainers = with maintainers; [ samdoshi ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/squishyball/default.nix b/pkgs/applications/audio/squishyball/default.nix
index 496ce779ffb57..e6dd48018e745 100644
--- a/pkgs/applications/audio/squishyball/default.nix
+++ b/pkgs/applications/audio/squishyball/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
        comparisons of groups of up to ten samples; this is the default
        mode of operation.
     '';
-    homepage = https://svn.xiph.org/trunk/squishyball;
+    homepage = "https://svn.xiph.org/trunk/squishyball";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ michalrus ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/ssrc/default.nix b/pkgs/applications/audio/ssrc/default.nix
index 1247bbc19f976..9d519e14147b2 100644
--- a/pkgs/applications/audio/ssrc/default.nix
+++ b/pkgs/applications/audio/ssrc/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
     '';
 
     version = version;
-    homepage = http://shibatch.sourceforge.net/;
+    homepage = "http://shibatch.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ leenaars];
     platforms = with platforms; [ linux ] ;
diff --git a/pkgs/applications/audio/stone-phaser/default.nix b/pkgs/applications/audio/stone-phaser/default.nix
index 6e64ebc7fb3e9..d36b28df978a7 100644
--- a/pkgs/applications/audio/stone-phaser/default.nix
+++ b/pkgs/applications/audio/stone-phaser/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jpcima/stone-phaser;
+    homepage = "https://github.com/jpcima/stone-phaser";
     description = "A classic analog phaser effect, made with DPF and Faust";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/streamripper/default.nix b/pkgs/applications/audio/streamripper/default.nix
index efa87a2f72cca..55ed40c2fb8d3 100644
--- a/pkgs/applications/audio/streamripper/default.nix
+++ b/pkgs/applications/audio/streamripper/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ glib libogg libvorbis libmad ];
 
   meta = with stdenv.lib; {
-    homepage = http://streamripper.sourceforge.net/;
+    homepage = "http://streamripper.sourceforge.net/";
     description = "Application that lets you record streaming mp3 to your hard drive";
     license = licenses.gpl2;
     maintainers = with maintainers; [ the-kenny ];
diff --git a/pkgs/applications/audio/svox/default.nix b/pkgs/applications/audio/svox/default.nix
index 3e9fe4725afd4..0f8e514388304 100644
--- a/pkgs/applications/audio/svox/default.nix
+++ b/pkgs/applications/audio/svox/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Text-to-speech engine";
-    homepage = https://android.googlesource.com/platform/external/svox;
+    homepage = "https://android.googlesource.com/platform/external/svox";
     platforms = platforms.linux;
     license = licenses.asl20;
     maintainers = with maintainers; [ abbradar ];
diff --git a/pkgs/applications/audio/swh-lv2/default.nix b/pkgs/applications/audio/swh-lv2/default.nix
index b59752d7cc3e5..02499d54476f1 100644
--- a/pkgs/applications/audio/swh-lv2/default.nix
+++ b/pkgs/applications/audio/swh-lv2/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   installPhase = "make install-system";
 
   meta = with stdenv.lib; {
-    homepage = http://plugin.org.uk;
+    homepage = "http://plugin.org.uk";
     description = "LV2 version of Steve Harris' SWH plugins";
     longDescription = ''
       SWH plugins include:
diff --git a/pkgs/applications/audio/tambura/default.nix b/pkgs/applications/audio/tambura/default.nix
index 030bb2c01a72b..96f9bb7053e0b 100644
--- a/pkgs/applications/audio/tambura/default.nix
+++ b/pkgs/applications/audio/tambura/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A FAUST patch inspired by the Indian Tambura/Tanpura - a four string drone instrument, known for its unique rich harmonic timbre";
-    homepage = https://github.com/olilarkin/Tambura;
+    homepage = "https://github.com/olilarkin/Tambura";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/tetraproc/default.nix b/pkgs/applications/audio/tetraproc/default.nix
index 40362fdd49688..8780e54bb7c33 100644
--- a/pkgs/applications/audio/tetraproc/default.nix
+++ b/pkgs/applications/audio/tetraproc/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Converts the A-format signals from a tetrahedral Ambisonic microphone into B-format signals ready for recording";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/timemachine/default.nix b/pkgs/applications/audio/timemachine/default.nix
index 3564f875c9b45..8be43346bc04d 100644
--- a/pkgs/applications/audio/timemachine/default.nix
+++ b/pkgs/applications/audio/timemachine/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "JACK audio recorder";
-    homepage = http://plugin.org.uk/timemachine/;
+    homepage = "http://plugin.org.uk/timemachine/";
     license = stdenv.lib.licenses.lgpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/tony/default.nix b/pkgs/applications/audio/tony/default.nix
index 92cab9b5b8dee..011d802536477 100644
--- a/pkgs/applications/audio/tony/default.nix
+++ b/pkgs/applications/audio/tony/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Pitch and note annotation of unaccompanied melody";
-    homepage = https://www.sonicvisualiser.org/tony/;
+    homepage = "https://www.sonicvisualiser.org/tony/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/transcode/default.nix b/pkgs/applications/audio/transcode/default.nix
index d7d5b65375e9b..c7ee3914f25cc 100644
--- a/pkgs/applications/audio/transcode/default.nix
+++ b/pkgs/applications/audio/transcode/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Suite of command line utilities for transcoding video and audio codecs, and for converting between different container formats";
-    homepage = http://www.transcoding.org/;
+    homepage = "http://www.transcoding.org/";
     license = licenses.lgpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/transcribe/default.nix b/pkgs/applications/audio/transcribe/default.nix
index 8eb846ac9c56d..d9469fa4b7ae7 100644
--- a/pkgs/applications/audio/transcribe/default.nix
+++ b/pkgs/applications/audio/transcribe/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
       has many transcription-specific features not found on
       conventional music players.
     '';
-    homepage = https://www.seventhstring.com/xscribe/;
+    homepage = "https://www.seventhstring.com/xscribe/";
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = with maintainers; [ michalrus ];
diff --git a/pkgs/applications/audio/tree-from-tags/default.nix b/pkgs/applications/audio/tree-from-tags/default.nix
index 521133cb08fca..3b25b4218f19f 100644
--- a/pkgs/applications/audio/tree-from-tags/default.nix
+++ b/pkgs/applications/audio/tree-from-tags/default.nix
@@ -30,7 +30,7 @@ EOF
 
   meta = with stdenv.lib; {
     description = "Create file hierarchies from media tags";
-    homepage = https://www.emacswiki.org/emacs/Bongo;
+    homepage = "https://www.emacswiki.org/emacs/Bongo";
     platforms = ruby.meta.platforms;
     maintainers = [ maintainers.livnev maintainers.dbrock ];
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/audio/uade123/default.nix b/pkgs/applications/audio/uade123/default.nix
index 844eea11f5144..9130461e4d728 100644
--- a/pkgs/applications/audio/uade123/default.nix
+++ b/pkgs/applications/audio/uade123/default.nix
@@ -17,7 +17,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Plays old Amiga tunes through UAE emulation and cloned m68k-assembler Eagleplayer API";
-    homepage = http://zakalwe.fi/uade/;
+    homepage = "http://zakalwe.fi/uade/";
     license = licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.gnidorah ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/audio/vcv-rack/default.nix b/pkgs/applications/audio/vcv-rack/default.nix
index 21aa27fa5bc11..2aa09ec0be818 100644
--- a/pkgs/applications/audio/vcv-rack/default.nix
+++ b/pkgs/applications/audio/vcv-rack/default.nix
@@ -93,7 +93,7 @@ with stdenv.lib; stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open-source virtual modular synthesizer";
-    homepage = https://vcvrack.com/;
+    homepage = "https://vcvrack.com/";
     # The source is BSD-3 licensed, some of the art is CC-BY-NC 4.0 or under a
     # no-derivatives clause
     license = with licenses; [ bsd3 cc-by-nc-40 unfreeRedistributable ];
diff --git a/pkgs/applications/audio/vimpc/default.nix b/pkgs/applications/audio/vimpc/default.nix
index 7f02ea9cefec0..bcbfa6d3874f4 100644
--- a/pkgs/applications/audio/vimpc/default.nix
+++ b/pkgs/applications/audio/vimpc/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A vi/vim inspired client for the Music Player Daemon (mpd)";
-    homepage = https://github.com/boysetsfrog/vimpc;
+    homepage = "https://github.com/boysetsfrog/vimpc";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/audio/vkeybd/default.nix b/pkgs/applications/audio/vkeybd/default.nix
index 3f77a6574724f..0e8f12823d1e4 100644
--- a/pkgs/applications/audio/vkeybd/default.nix
+++ b/pkgs/applications/audio/vkeybd/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Virtual MIDI keyboard";
-    homepage = https://www.alsa-project.org/~tiwai/alsa.html;
+    homepage = "https://www.alsa-project.org/~tiwai/alsa.html";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/vocal/default.nix b/pkgs/applications/audio/vocal/default.nix
index 8b94450f8bda6..6ef992ffff670 100644
--- a/pkgs/applications/audio/vocal/default.nix
+++ b/pkgs/applications/audio/vocal/default.nix
@@ -72,7 +72,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       Vocal is a powerful, fast, and intuitive application that helps users find new podcasts, manage their libraries, and enjoy the best that indepedent audio and video publishing has to offer. Vocal features full support for both episode downloading and streaming, native system integration, iTunes store search and top 100 charts (with international results support), iTunes link parsing, OPML importing and exporting, and so much more. Plus, it has great smart features like automatically keeping your library clean from old files, and the ability to set custom skip intervals.
     '';
-    homepage = https://github.com/needle-and-thread/vocal;
+    homepage = "https://github.com/needle-and-thread/vocal";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/vorbis-tools/default.nix b/pkgs/applications/audio/vorbis-tools/default.nix
index 44d322069fc27..2270e56e62ac3 100644
--- a/pkgs/applications/audio/vorbis-tools/default.nix
+++ b/pkgs/applications/audio/vorbis-tools/default.nix
@@ -10,7 +10,7 @@ in
 stdenv.mkDerivation {
   name = "vorbis-tools-1.4.0";
   src = fetchurl {
-    url = http://downloads.xiph.org/releases/vorbis/vorbis-tools-1.4.0.tar.gz;
+    url = "http://downloads.xiph.org/releases/vorbis/vorbis-tools-1.4.0.tar.gz";
     sha256 = "1g12bnh5ah08v529y72kfdz5lhvy75iaz7f9jskyby23m9dkk2d3";
   };
 
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
       A set of command-line tools to manipulate Ogg Vorbis audio
       files, notably the `ogg123' player and the `oggenc' encoder.
     '';
-    homepage = https://xiph.org/vorbis/;
+    homepage = "https://xiph.org/vorbis/";
     license = licenses.gpl2;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/audio/waon/default.nix b/pkgs/applications/audio/waon/default.nix
index b27fdbffb7d68..bc05547e641d2 100644
--- a/pkgs/applications/audio/waon/default.nix
+++ b/pkgs/applications/audio/waon/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A Wave-to-Notes transcriber";
-    homepage = https://kichiki.github.io/WaoN/;
+    homepage = "https://kichiki.github.io/WaoN/";
     license = licenses.gpl2;
     maintainers = [ maintainers.puckipedia ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/wavegain/default.nix b/pkgs/applications/audio/wavegain/default.nix
index 5f56fb7297f47..d9b13f532735e 100644
--- a/pkgs/applications/audio/wavegain/default.nix
+++ b/pkgs/applications/audio/wavegain/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "ReplayGain for wave files";
-    homepage = https://github.com/MestreLion/wavegain;
+    homepage = "https://github.com/MestreLion/wavegain";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.robbinch ];
diff --git a/pkgs/applications/audio/whipper/default.nix b/pkgs/applications/audio/whipper/default.nix
index ff278d4d7f233..5cbc9a07b6c77 100644
--- a/pkgs/applications/audio/whipper/default.nix
+++ b/pkgs/applications/audio/whipper/default.nix
@@ -53,7 +53,7 @@ python3.pkgs.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/whipper-team/whipper;
+    homepage = "https://github.com/whipper-team/whipper";
     description = "A CD ripper aiming for accuracy over speed";
     maintainers = with maintainers; [ rycee emily ];
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/audio/wolf-shaper/default.nix b/pkgs/applications/audio/wolf-shaper/default.nix
index 13bf1d674c7c4..7d42a3c4e7bf9 100644
--- a/pkgs/applications/audio/wolf-shaper/default.nix
+++ b/pkgs/applications/audio/wolf-shaper/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://pdesaulniers.github.io/wolf-shaper/;
+    homepage = "https://pdesaulniers.github.io/wolf-shaper/";
     description = "Waveshaper plugin with spline-based graph editor";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/x42-avldrums/default.nix b/pkgs/applications/audio/x42-avldrums/default.nix
index b34062672f9af..fb05a50b4e594 100644
--- a/pkgs/applications/audio/x42-avldrums/default.nix
+++ b/pkgs/applications/audio/x42-avldrums/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Drum sample player LV2 plugin dedicated to Glen MacArthur's AVLdrums";
-    homepage = https://x42-plugins.com/x42/x42-avldrums;
+    homepage = "https://x42-plugins.com/x42/x42-avldrums";
     maintainers = with maintainers; [ magnetophon orivej ];
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/x42-gmsynth/default.nix b/pkgs/applications/audio/x42-gmsynth/default.nix
index 33d61eeb35f6c..7a96e3fd4f2f8 100644
--- a/pkgs/applications/audio/x42-gmsynth/default.nix
+++ b/pkgs/applications/audio/x42-gmsynth/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Chris Colins' General User soundfont player LV2 plugin";
-    homepage = https://x42-plugins.com/x42/x42-gmsynth;
+    homepage = "https://x42-plugins.com/x42/x42-gmsynth";
     maintainers = with maintainers; [ orivej ];
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/x42-plugins/default.nix b/pkgs/applications/audio/x42-plugins/default.nix
index f4087506daa32..8ec53b0c66ad2 100644
--- a/pkgs/applications/audio/x42-plugins/default.nix
+++ b/pkgs/applications/audio/x42-plugins/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib;
     { description = "Collection of LV2 plugins by Robin Gareus";
-      homepage = https://github.com/x42/x42-plugins;
+      homepage = "https://github.com/x42/x42-plugins";
       maintainers = with maintainers; [ magnetophon ];
       license = licenses.gpl2;
       platforms = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/audio/yasr/default.nix b/pkgs/applications/audio/yasr/default.nix
index c8902f1dda4be..68423197f3c8b 100644
--- a/pkgs/applications/audio/yasr/default.nix
+++ b/pkgs/applications/audio/yasr/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   ]; # taken from the debian yasr package
 
   meta = {
-    homepage = http://yasr.sourceforge.net;
+    homepage = "http://yasr.sourceforge.net";
     description = "A general-purpose console screen reader";
     longDescription = "Yasr is a general-purpose console screen reader for GNU/Linux and other Unix-like operating systems.";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/ympd/default.nix b/pkgs/applications/audio/ympd/default.nix
index 7976f7477171f..8f86d6e7ba93d 100644
--- a/pkgs/applications/audio/ympd/default.nix
+++ b/pkgs/applications/audio/ympd/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cmake mpd_clientlib openssl ];
 
   meta = {
-    homepage = https://www.ympd.org;
+    homepage = "https://www.ympd.org";
     description = "Standalone MPD Web GUI written in C, utilizing Websockets and Bootstrap/JS";
     maintainers = [ stdenv.lib.maintainers.siddharthist ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/audio/yoshimi/default.nix b/pkgs/applications/audio/yoshimi/default.nix
index 40691be1a0c9d..f8ea58fef3ce7 100644
--- a/pkgs/applications/audio/yoshimi/default.nix
+++ b/pkgs/applications/audio/yoshimi/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation  rec {
       ZynAddSubFX along with very good Jack and Alsa midi/audio
       functionality on Linux
     '';
-    homepage = http://yoshimi.sourceforge.net;
+    homepage = "http://yoshimi.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/zam-plugins/default.nix b/pkgs/applications/audio/zam-plugins/default.nix
index b9645fa4d8af1..a34773513d933 100644
--- a/pkgs/applications/audio/zam-plugins/default.nix
+++ b/pkgs/applications/audio/zam-plugins/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.zamaudio.com/?p=976;
+    homepage = "http://www.zamaudio.com/?p=976";
     description = "A collection of LV2/LADSPA/VST/JACK audio plugins by ZamAudio";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/zita-ajbridge/default.nix b/pkgs/applications/audio/zita-ajbridge/default.nix
index 6904952afea67..6247d1d282a0b 100644
--- a/pkgs/applications/audio/zita-ajbridge/default.nix
+++ b/pkgs/applications/audio/zita-ajbridge/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Connect additional ALSA devices to JACK";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/zita-at1/default.nix b/pkgs/applications/audio/zita-at1/default.nix
index c91edf34c826f..d357febd882e3 100644
--- a/pkgs/applications/audio/zita-at1/default.nix
+++ b/pkgs/applications/audio/zita-at1/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Autotuner Jack application to correct the pitch of vocal tracks";
-    homepage = https://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "https://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/zita-njbridge/default.nix b/pkgs/applications/audio/zita-njbridge/default.nix
index 1ec6946cf38c3..3a293cfc026f4 100644
--- a/pkgs/applications/audio/zita-njbridge/default.nix
+++ b/pkgs/applications/audio/zita-njbridge/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "command line Jack clients to transmit full quality multichannel audio over a local IP network";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/zynaddsubfx/default.nix b/pkgs/applications/audio/zynaddsubfx/default.nix
index e22bf9ed653a4..9a432f73d3f04 100644
--- a/pkgs/applications/audio/zynaddsubfx/default.nix
+++ b/pkgs/applications/audio/zynaddsubfx/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "High quality software synthesizer";
-    homepage = http://zynaddsubfx.sourceforge.net;
+    homepage = "http://zynaddsubfx.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu maintainers.nico202 ];
diff --git a/pkgs/applications/backup/areca/default.nix b/pkgs/applications/backup/areca/default.nix
index d02aa4b8444f6..b4d644430dd19 100644
--- a/pkgs/applications/backup/areca/default.nix
+++ b/pkgs/applications/backup/areca/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.areca-backup.org/;
+    homepage = "http://www.areca-backup.org/";
     description = "An Open Source personal backup solution";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/blockchains/aeon/default.nix b/pkgs/applications/blockchains/aeon/default.nix
index db9e68ae90504..5e0c25466ebef 100644
--- a/pkgs/applications/blockchains/aeon/default.nix
+++ b/pkgs/applications/blockchains/aeon/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Private, secure, untraceable currency";
-    homepage = http://www.aeon.cash/;
+    homepage = "http://www.aeon.cash/";
     license = licenses.bsd3;
     maintainers = [ maintainers.aij ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/blockchains/bitcoin-classic.nix b/pkgs/applications/blockchains/bitcoin-classic.nix
index ddce5c3f71503..01c1264567ce7 100644
--- a/pkgs/applications/blockchains/bitcoin-classic.nix
+++ b/pkgs/applications/blockchains/bitcoin-classic.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
       will continue to release updates that are in line with Satoshi’s whitepaper &
       vision, and are agreed upon by the community.
     '';
-    homepage = https://bitcoinclassic.com/;
+    homepage = "https://bitcoinclassic.com/";
     maintainers = with maintainers; [ jefdaj ];
     license = licenses.mit;
     broken = stdenv.isDarwin;
diff --git a/pkgs/applications/blockchains/bitcoin-unlimited.nix b/pkgs/applications/blockchains/bitcoin-unlimited.nix
index c0d51e66db334..f755efaa0e124 100644
--- a/pkgs/applications/blockchains/bitcoin-unlimited.nix
+++ b/pkgs/applications/blockchains/bitcoin-unlimited.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
       support Bitcoin conflict resolution as originally envisioned by its founder -
       consider running a Bitcoin Unlimited client.
     '';
-    homepage = https://www.bitcoinunlimited.info/;
+    homepage = "https://www.bitcoinunlimited.info/";
     maintainers = with maintainers; [ DmitryTsygankov ];
     license = licenses.mit;
     broken = stdenv.isDarwin;
diff --git a/pkgs/applications/blockchains/bitcoin.nix b/pkgs/applications/blockchains/bitcoin.nix
index c1143f898e285..15094a1eee401 100644
--- a/pkgs/applications/blockchains/bitcoin.nix
+++ b/pkgs/applications/blockchains/bitcoin.nix
@@ -73,7 +73,7 @@ in stdenv.mkDerivation rec {
       parties. Users hold the crypto keys to their own money and transact directly
       with each other, with the help of a P2P network to check for double-spending.
     '';
-    homepage = http://www.bitcoin.org/;
+    homepage = "http://www.bitcoin.org/";
     maintainers = with maintainers; [ roconnor AndersonTorres ];
     license = licenses.mit;
     platforms = platforms.unix;
diff --git a/pkgs/applications/blockchains/clightning.nix b/pkgs/applications/blockchains/clightning.nix
index 0add60cc19e46..61765913464fd 100644
--- a/pkgs/applications/blockchains/clightning.nix
+++ b/pkgs/applications/blockchains/clightning.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
       Bitcoin, enabling secure and instant transfer of funds between any two
       parties for any amount.
     '';
-    homepage = https://github.com/ElementsProject/lightning;
+    homepage = "https://github.com/ElementsProject/lightning";
     maintainers = with maintainers; [ jb55 ];
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/blockchains/cryptop/default.nix b/pkgs/applications/blockchains/cryptop/default.nix
index 01c47b320de58..f0bcda5793013 100644
--- a/pkgs/applications/blockchains/cryptop/default.nix
+++ b/pkgs/applications/blockchains/cryptop/default.nix
@@ -15,7 +15,7 @@ buildPythonApplication rec {
   doCheck = false;
 
   meta = {
-    homepage = https://github.com/huwwp/cryptop;
+    homepage = "https://github.com/huwwp/cryptop";
     description = "Command line Cryptocurrency Portfolio";
     license = with lib.licenses; [ mit ];
     maintainers = with lib.maintainers; [ bhipple ];
diff --git a/pkgs/applications/blockchains/dashpay.nix b/pkgs/applications/blockchains/dashpay.nix
index 03dcd6cb54e6d..d0c3fed4350ba 100644
--- a/pkgs/applications/blockchains/dashpay.nix
+++ b/pkgs/applications/blockchains/dashpay.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
       with instant transactions.  It allows you to keep your finances
       private as you make transactions without waits, similar to cash.
     '';
-    homepage = https://www.dash.org;
+    homepage = "https://www.dash.org";
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/blockchains/dogecoin.nix b/pkgs/applications/blockchains/dogecoin.nix
index 02744e50647ea..b1ebebdd213a1 100644
--- a/pkgs/applications/blockchains/dogecoin.nix
+++ b/pkgs/applications/blockchains/dogecoin.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
       internet currency."
       It is named after a famous Internet meme, the "Doge" - a Shiba Inu dog.
     '';
-    homepage = http://www.dogecoin.com/;
+    homepage = "http://www.dogecoin.com/";
     license = licenses.mit;
     maintainers = with maintainers; [ edwtjo offline AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/blockchains/freicoin.nix b/pkgs/applications/blockchains/freicoin.nix
index 6cf84f76f919c..cc28fff96c47a 100644
--- a/pkgs/applications/blockchains/freicoin.nix
+++ b/pkgs/applications/blockchains/freicoin.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Peer-to-peer currency with demurrage fee";
-    homepage = http://freicoi.in/;
+    homepage = "http://freicoi.in/";
     license = licenses.mit;
     maintainers = [ maintainers.viric ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/blockchains/litecoin.nix b/pkgs/applications/blockchains/litecoin.nix
index 470772665413f..ec1658b595d39 100644
--- a/pkgs/applications/blockchains/litecoin.nix
+++ b/pkgs/applications/blockchains/litecoin.nix
@@ -46,7 +46,7 @@ mkDerivation rec {
       the regular computers and GPUs most people already have.
       The Litecoin network is scheduled to produce 84 million currency units.
     '';
-    homepage = https://litecoin.org/;
+    homepage = "https://litecoin.org/";
     platforms = platforms.unix;
     license = licenses.mit;
     broken = stdenv.isDarwin;
diff --git a/pkgs/applications/blockchains/mist.nix b/pkgs/applications/blockchains/mist.nix
index 2990b44c7f4c1..9dd564d715cc8 100644
--- a/pkgs/applications/blockchains/mist.nix
+++ b/pkgs/applications/blockchains/mist.nix
@@ -8,7 +8,7 @@ let
 
   meta = with stdenv.lib; {
     description = "Browse and use Ðapps on the Ethereum network";
-    homepage = https://github.com/ethereum/mist;
+    homepage = "https://github.com/ethereum/mist";
     license = licenses.gpl3;
     maintainers = with maintainers; [];
     platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/applications/blockchains/monero-gui/default.nix b/pkgs/applications/blockchains/monero-gui/default.nix
index 980e20d04b756..48a6d81b6ba10 100644
--- a/pkgs/applications/blockchains/monero-gui/default.nix
+++ b/pkgs/applications/blockchains/monero-gui/default.nix
@@ -79,7 +79,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description  = "Private, secure, untraceable currency";
-    homepage     = https://getmonero.org/;
+    homepage     = "https://getmonero.org/";
     license      = licenses.bsd3;
     platforms    = platforms.all;
     badPlatforms = platforms.darwin;
diff --git a/pkgs/applications/blockchains/monero/default.nix b/pkgs/applications/blockchains/monero/default.nix
index c942197006c4f..2a04beb937964 100644
--- a/pkgs/applications/blockchains/monero/default.nix
+++ b/pkgs/applications/blockchains/monero/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Private, secure, untraceable currency";
-    homepage    = https://getmonero.org/;
+    homepage    = "https://getmonero.org/";
     license     = licenses.bsd3;
     platforms   = platforms.all;
     maintainers = with maintainers; [ ehmry rnhmjoj ];
diff --git a/pkgs/applications/blockchains/nano-wallet/default.nix b/pkgs/applications/blockchains/nano-wallet/default.nix
index 7d9fdb06d184f..664e26740629a 100644
--- a/pkgs/applications/blockchains/nano-wallet/default.nix
+++ b/pkgs/applications/blockchains/nano-wallet/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
   meta = {
     inherit version;
     description = "Wallet for Nano cryptocurrency";
-    homepage = https://nano.org/en/wallet/;
+    homepage = "https://nano.org/en/wallet/";
     license = lib.licenses.bsd2;
     # Fails on Darwin. See:
     # https://github.com/NixOS/nixpkgs/pull/39295#issuecomment-386800962
diff --git a/pkgs/applications/blockchains/parity-ui/default.nix b/pkgs/applications/blockchains/parity-ui/default.nix
index 0615aed2ca03f..b18c121607abd 100644
--- a/pkgs/applications/blockchains/parity-ui/default.nix
+++ b/pkgs/applications/blockchains/parity-ui/default.nix
@@ -40,7 +40,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "UI for Parity. Fast, light, robust Ethereum implementation";
-    homepage = http://parity.io;
+    homepage = "http://parity.io";
     license = licenses.gpl3;
     maintainers = [ maintainers.sorpaas ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/blockchains/particl/particl-core.nix b/pkgs/applications/blockchains/particl/particl-core.nix
index 613d57cd9c8c8..5cb94b8bd5474 100644
--- a/pkgs/applications/blockchains/particl/particl-core.nix
+++ b/pkgs/applications/blockchains/particl/particl-core.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
       An open source, decentralized privacy platform built for global person to person eCommerce.
       RPC daemon and CLI client only.
     '';
-    homepage = https://particl.io/;
+    homepage = "https://particl.io/";
     maintainers = with maintainers; [ demyanrogozhin ];
     license = licenses.mit;
     platforms = platforms.unix;
diff --git a/pkgs/applications/blockchains/pivx.nix b/pkgs/applications/blockchains/pivx.nix
index af8085232e994..600e462b390e2 100644
--- a/pkgs/applications/blockchains/pivx.nix
+++ b/pkgs/applications/blockchains/pivx.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
       Zero Knowledge cryptography proofs for industry-leading transaction anonymity.
     '';
     license = licenses.mit;
-    homepage = https://www.dash.org;
+    homepage = "https://www.dash.org";
     maintainers = with maintainers; [ wucke13 ];
     platforms = platforms.unix;
     # TODO
diff --git a/pkgs/applications/blockchains/stellar-core.nix b/pkgs/applications/blockchains/stellar-core.nix
index 4c3f9fe0760bb..6bb717a0344b0 100644
--- a/pkgs/applications/blockchains/stellar-core.nix
+++ b/pkgs/applications/blockchains/stellar-core.nix
@@ -39,7 +39,7 @@ in stdenv.mkDerivation {
       instances of stellar-core on the network. Optionally, stellar-core can
       store historical records of the ledger and participate in consensus.
     '';
-    homepage = https://www.stellar.org/;
+    homepage = "https://www.stellar.org/";
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ chris-martin ];
     license = licenses.asl20;
diff --git a/pkgs/applications/blockchains/wownero.nix b/pkgs/applications/blockchains/wownero.nix
index eb813a361251f..1094d7f0f7ba4 100644
--- a/pkgs/applications/blockchains/wownero.nix
+++ b/pkgs/applications/blockchains/wownero.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
       signatures using different participants for the same tx outputs on
       opposing forks.
     '';
-    homepage    = https://wownero.org/;
+    homepage    = "https://wownero.org/";
     license     = licenses.bsd3;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ fuwa ];
diff --git a/pkgs/applications/display-managers/lightdm-enso-os-greeter/default.nix b/pkgs/applications/display-managers/lightdm-enso-os-greeter/default.nix
index 3128f125cd9eb..488ef4cfedd47 100644
--- a/pkgs/applications/display-managers/lightdm-enso-os-greeter/default.nix
+++ b/pkgs/applications/display-managers/lightdm-enso-os-greeter/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation {
   pname = "lightdm-enso-os-greeter";
 
   src = fetchgit {
-    url = https://github.com/nick92/Enso-OS;
+    url = "https://github.com/nick92/Enso-OS";
     rev = "ed48330bfd986072bd82ac542ed8f8a7365c6427";
     sha256 = "11jm181jq1vbn83h235avpdxz7pqq6prqyzki5yryy53mkj4kgxz";
   };
@@ -60,7 +60,7 @@ stdenv.mkDerivation {
       A fork of pantheon greeter that positions elements in a central and
       vertigal manner and adds a blur effect to the background
     '';
-    homepage = https://github.com/nick92/Enso-OS;
+    homepage = "https://github.com/nick92/Enso-OS";
     platforms = platforms.linux;
     license = licenses.gpl3;
     maintainers = with maintainers; [
diff --git a/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix b/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix
index b5b26d7cc4305..9068e12adbaf3 100644
--- a/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix
+++ b/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A minimal, configurable, single-user GTK3 LightDM greeter";
-    homepage = https://github.com/prikhi/lightdm-mini-greeter;
+    homepage = "https://github.com/prikhi/lightdm-mini-greeter";
     license = licenses.gpl3;
     maintainers = with maintainers; [ mnacamura prikhi ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/display-managers/lightdm-tiny-greeter/default.nix b/pkgs/applications/display-managers/lightdm-tiny-greeter/default.nix
index 323df7369368f..7e37d1348749d 100644
--- a/pkgs/applications/display-managers/lightdm-tiny-greeter/default.nix
+++ b/pkgs/applications/display-managers/lightdm-tiny-greeter/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A tiny multi user lightdm greeter";
-    homepage = https://github.com/off-world/lightdm-tiny-greeter;
+    homepage = "https://github.com/off-world/lightdm-tiny-greeter";
     license = licenses.bsd3;
     maintainers = with maintainers; [ edwtjo ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/display-managers/lightdm/default.nix b/pkgs/applications/display-managers/lightdm/default.nix
index c251af74b2172..1a65ebd33577b 100644
--- a/pkgs/applications/display-managers/lightdm/default.nix
+++ b/pkgs/applications/display-managers/lightdm/default.nix
@@ -128,7 +128,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://github.com/CanonicalLtd/lightdm;
+    homepage = "https://github.com/CanonicalLtd/lightdm";
     description = "A cross-desktop display manager";
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/display-managers/lightdm/gtk-greeter.nix b/pkgs/applications/display-managers/lightdm/gtk-greeter.nix
index be586bdac9bce..ab7dd90801ced 100644
--- a/pkgs/applications/display-managers/lightdm/gtk-greeter.nix
+++ b/pkgs/applications/display-managers/lightdm/gtk-greeter.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
   }];
 
   meta = with stdenv.lib; {
-    homepage = https://launchpad.net/lightdm-gtk-greeter;
+    homepage = "https://launchpad.net/lightdm-gtk-greeter";
     platforms = platforms.linux;
     license = licenses.gpl3;
     maintainers = with maintainers; [ ocharles ];
diff --git a/pkgs/applications/display-managers/ly/default.nix b/pkgs/applications/display-managers/ly/default.nix
index 2f0a770bc71c0..f16dd62bb1a44 100644
--- a/pkgs/applications/display-managers/ly/default.nix
+++ b/pkgs/applications/display-managers/ly/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "TUI display manager";
     license = licenses.wtfpl;
-    homepage = https://github.com/cylgom/ly;
+    homepage = "https://github.com/cylgom/ly";
     maintainers = [ maintainers.spacekookie ];
   };
 }
diff --git a/pkgs/applications/display-managers/sddm/default.nix b/pkgs/applications/display-managers/sddm/default.nix
index 735e83a0842a6..3ebeaa6262b7a 100644
--- a/pkgs/applications/display-managers/sddm/default.nix
+++ b/pkgs/applications/display-managers/sddm/default.nix
@@ -60,7 +60,7 @@ in mkDerivation {
 
   meta = with lib; {
     description = "QML based X11 display manager";
-    homepage    = https://github.com/sddm/sddm;
+    homepage    = "https://github.com/sddm/sddm";
     maintainers = with maintainers; [ abbradar ttuegel ];
     platforms   = platforms.linux;
     license     = licenses.gpl2Plus;
diff --git a/pkgs/applications/editors/aewan/default.nix b/pkgs/applications/editors/aewan/default.nix
index 1bd73bebe03b0..56a144bdfb8d2 100644
--- a/pkgs/applications/editors/aewan/default.nix
+++ b/pkgs/applications/editors/aewan/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Ascii-art Editor Without A Name";
-    homepage = http://aewan.sourceforge.net/;
+    homepage = "http://aewan.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/editors/android-studio/common.nix b/pkgs/applications/editors/android-studio/common.nix
index bd1685f7cdbef..8df24137e58b6 100644
--- a/pkgs/applications/editors/android-studio/common.nix
+++ b/pkgs/applications/editors/android-studio/common.nix
@@ -185,8 +185,8 @@ in runCommand
         IntelliJ IDEA.
       '';
       homepage = if channel == "stable"
-        then https://developer.android.com/studio/index.html
-        else https://developer.android.com/studio/preview/index.html;
+        then "https://developer.android.com/studio/index.html"
+        else "https://developer.android.com/studio/preview/index.html";
       license = licenses.asl20;
       platforms = [ "x86_64-linux" ];
       maintainers = with maintainers; [ primeos ];
diff --git a/pkgs/applications/editors/aseprite/default.nix b/pkgs/applications/editors/aseprite/default.nix
index 5ba0f9cf237e7..4ba8932fec259 100644
--- a/pkgs/applications/editors/aseprite/default.nix
+++ b/pkgs/applications/editors/aseprite/default.nix
@@ -101,7 +101,7 @@ stdenv.mkDerivation rec {
   passthru = { inherit skia; };
 
   meta = with lib; {
-    homepage = https://www.aseprite.org/;
+    homepage = "https://www.aseprite.org/";
     description = "Animated sprite editor & pixel art tool";
     license = if unfree then licenses.unfree else licenses.gpl2;
     longDescription =
diff --git a/pkgs/applications/editors/atom/default.nix b/pkgs/applications/editors/atom/default.nix
index 0a7e362e75ad7..fbe08dbfe7b7b 100644
--- a/pkgs/applications/editors/atom/default.nix
+++ b/pkgs/applications/editors/atom/default.nix
@@ -74,7 +74,7 @@ let
 
     meta = with stdenv.lib; {
       description = "A hackable text editor for the 21st Century";
-      homepage = https://atom.io/;
+      homepage = "https://atom.io/";
       license = licenses.mit;
       maintainers = with maintainers; [ offline nequissimus ysndr ];
       platforms = platforms.x86_64;
diff --git a/pkgs/applications/editors/bluefish/default.nix b/pkgs/applications/editors/bluefish/default.nix
index f78f7fbf91487..ff1daef8b80d0 100644
--- a/pkgs/applications/editors/bluefish/default.nix
+++ b/pkgs/applications/editors/bluefish/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A powerful editor targeted towards programmers and webdevelopers";
-    homepage = http://bluefish.openoffice.nl/;
+    homepage = "http://bluefish.openoffice.nl/";
     license = licenses.gpl3Plus;
     maintainers = [maintainers.vbgl];
     platforms = platforms.all;
diff --git a/pkgs/applications/editors/brackets/default.nix b/pkgs/applications/editors/brackets/default.nix
index 439b721632d06..3e01bcdb0f9d5 100644
--- a/pkgs/applications/editors/brackets/default.nix
+++ b/pkgs/applications/editors/brackets/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An open source code editor for the web, written in JavaScript, HTML and CSS";
-    homepage = http://brackets.io/;
+    homepage = "http://brackets.io/";
     license = licenses.mit;
     maintainers = [ maintainers.matejc ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/editors/bvi/default.nix b/pkgs/applications/editors/bvi/default.nix
index 2e79b80d6105f..8a61e0252bc3a 100644
--- a/pkgs/applications/editors/bvi/default.nix
+++ b/pkgs/applications/editors/bvi/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Hex editor with vim style keybindings";
-    homepage = http://bvi.sourceforge.net/download.html;
+    homepage = "http://bvi.sourceforge.net/download.html";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/editors/bviplus/default.nix b/pkgs/applications/editors/bviplus/default.nix
index 5fab7fe9da620..2cf094c091a6e 100644
--- a/pkgs/applications/editors/bviplus/default.nix
+++ b/pkgs/applications/editors/bviplus/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Ncurses based hex editor with a vim-like interface";
-    homepage = http://bviplus.sourceforge.net;
+    homepage = "http://bviplus.sourceforge.net";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/applications/editors/codeblocks/default.nix b/pkgs/applications/editors/codeblocks/default.nix
index cbed08f317fad..4e2ac8a50f14f 100644
--- a/pkgs/applications/editors/codeblocks/default.nix
+++ b/pkgs/applications/editors/codeblocks/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
         It is designed to be very extensible and fully configurable.
         Finally, an IDE with all the features you need, having a consistent look, feel and operation across platforms.
       '';
-    homepage = http://www.codeblocks.org;
+    homepage = "http://www.codeblocks.org";
     license = licenses.gpl3;
   };
 }
diff --git a/pkgs/applications/editors/dhex/default.nix b/pkgs/applications/editors/dhex/default.nix
index efb3a2f9ffabb..0a635b7ba82e9 100644
--- a/pkgs/applications/editors/dhex/default.nix
+++ b/pkgs/applications/editors/dhex/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A themeable hex editor with diff mode";
-    homepage = http://www.dettus.net/dhex/;
+    homepage = "http://www.dettus.net/dhex/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [qknight];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/editors/eclipse/build-eclipse.nix b/pkgs/applications/editors/eclipse/build-eclipse.nix
index 6ae9eb078e262..f8cbac06b0db9 100644
--- a/pkgs/applications/editors/eclipse/build-eclipse.nix
+++ b/pkgs/applications/editors/eclipse/build-eclipse.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
   ''; # */
 
   meta = {
-    homepage = http://www.eclipse.org/;
+    homepage = "http://www.eclipse.org/";
     inherit description;
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/editors/eclipse/default.nix b/pkgs/applications/editors/eclipse/default.nix
index 345f7eae9fc69..d3113b819f7e5 100644
--- a/pkgs/applications/editors/eclipse/default.nix
+++ b/pkgs/applications/editors/eclipse/default.nix
@@ -69,12 +69,12 @@ in rec {
     src =
       if stdenv.hostPlatform.system == "x86_64-linux" then
         fetchurl { # tested
-          url = https://downloads.typesafe.com/scalaide-pack/4.4.1-vfinal-luna-211-20160504/scala-SDK-4.4.1-vfinal-2.11-linux.gtk.x86_64.tar.gz;
+          url = "https://downloads.typesafe.com/scalaide-pack/4.4.1-vfinal-luna-211-20160504/scala-SDK-4.4.1-vfinal-2.11-linux.gtk.x86_64.tar.gz";
           sha256  = "4c2d1ac68384e12a11a851cf0fc7757aea087eba69329b21d539382a65340d27";
         }
       else
         fetchurl { # untested
-          url = https://downloads.typesafe.com/scalaide-pack/4.4.1-vfinal-luna-211-20160504/scala-SDK-4.4.1-vfinal-2.11-linux.gtk.x86.tar.gz;
+          url = "https://downloads.typesafe.com/scalaide-pack/4.4.1-vfinal-luna-211-20160504/scala-SDK-4.4.1-vfinal-2.11-linux.gtk.x86.tar.gz";
           sha256 = "35383cb09567187e14a30c15de9fd9aa0eef99e4bbb342396ce3acd11fb5cbac";
         };
   };
diff --git a/pkgs/applications/editors/eclipse/plugins.nix b/pkgs/applications/editors/eclipse/plugins.nix
index a60b1a2ae5111..fab7317868a92 100644
--- a/pkgs/applications/editors/eclipse/plugins.nix
+++ b/pkgs/applications/editors/eclipse/plugins.nix
@@ -106,7 +106,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/tobiasmelcher/EclipseAceJump;
+      homepage = "https://github.com/tobiasmelcher/EclipseAceJump";
       description = "Provides fast jumps to text based on initial letter";
       license = licenses.mit;
       platforms = platforms.all;
@@ -153,7 +153,7 @@ rec {
 
     meta = with stdenv.lib; {
       description = "A powerful parser generator for processing structured text or binary files";
-      homepage = https://www.antlr.org/;
+      homepage = "https://www.antlr.org/";
       license = licenses.bsd3;
       platforms = platforms.all;
       maintainers = [ maintainers.rycee ];
@@ -176,7 +176,7 @@ rec {
 
     meta = with stdenv.lib; {
       description = "A powerful parser generator for processing structured text or binary files";
-      homepage = https://www.antlr.org/;
+      homepage = "https://www.antlr.org/";
       license = licenses.bsd3;
       platforms = platforms.all;
       maintainers = [ maintainers.rycee ];
@@ -198,7 +198,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = http://andrei.gmxhome.de/anyedit/;
+      homepage = "http://andrei.gmxhome.de/anyedit/";
       description = "Adds new tools to the context menu of text-based editors";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -221,7 +221,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/cypher256/eclipse-encoding-plugin;
+      homepage = "https://github.com/cypher256/eclipse-encoding-plugin";
       description = "Show file encoding and line ending for the active editor in the eclipse status bar";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -244,7 +244,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = http://andrei.gmxhome.de/bytecode/;
+      homepage = "http://andrei.gmxhome.de/bytecode/";
       description = "Shows disassembled bytecode of current java editor or class file";
       license = licenses.bsd2;
       platforms = platforms.all;
@@ -263,7 +263,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://eclipse.org/cdt/;
+      homepage = "https://eclipse.org/cdt/";
       description = "C/C++ development tooling";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -282,7 +282,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://eclipse-cs.sourceforge.net/;
+      homepage = "https://eclipse-cs.sourceforge.net/";
       description = "Checkstyle integration into the Eclipse IDE";
       license = licenses.lgpl21;
       platforms = platforms.all;
@@ -306,7 +306,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = http://eclipsecolorthemes.org/;
+      homepage = "http://eclipsecolorthemes.org/";
       description = "Plugin to switch color themes conveniently and without side effects";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -339,7 +339,7 @@ rec {
     propagatedBuildInputs = [ zest ];
 
     meta = with stdenv.lib; {
-      homepage = http://www2.cs.tum.edu/projects/cup/eclipse.php;
+      homepage = "http://www2.cs.tum.edu/projects/cup/eclipse.php";
       description = "IDE for developing CUP based parsers";
       platforms = platforms.all;
       maintainers = [ maintainers.romildo ];
@@ -367,7 +367,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://www.drools.org/;
+      homepage = "https://www.drools.org/";
       description = "Drools is a Business Rules Management System (BRMS) solution";
       license = licenses.asl20;
     };
@@ -384,7 +384,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://www.eclemma.org/;
+      homepage = "https://www.eclemma.org/";
       description = "EclEmma is a free Java code coverage tool for Eclipse";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -407,7 +407,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = http://findbugs.sourceforge.net/;
+      homepage = "http://findbugs.sourceforge.net/";
       description = "Plugin that uses static analysis to look for bugs in Java code";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -426,7 +426,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = http://gnuarmeclipse.livius.net/;
+      homepage = "http://gnuarmeclipse.livius.net/";
       description = "GNU ARM Eclipse Plug-ins";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -465,7 +465,7 @@ rec {
 
     meta = with stdenv.lib; {
       description = "Adds support for JSON files to Eclipse";
-      homepage = https://github.com/boothen/Json-Eclipse-Plugin;
+      homepage = "https://github.com/boothen/Json-Eclipse-Plugin";
       license = licenses.epl10;
       platforms = platforms.all;
       maintainers = [ maintainers.rycee ];
@@ -483,7 +483,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://www.eclipse.org/jdt/;
+      homepage = "https://www.eclipse.org/jdt/";
       description = "Eclipse Java development tools";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -506,7 +506,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/angelozerr/jdt-codemining;
+      homepage = "https://github.com/angelozerr/jdt-codemining";
       description = "Provides JDT Java CodeMining";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -532,7 +532,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/RustDT;
+      homepage = "https://github.com/RustDT";
       description = "Rust development tooling";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -549,7 +549,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = http://scala-ide.org/;
+      homepage = "http://scala-ide.org/";
       description = "The Scala IDE for Eclipse";
       license = licenses.bsd3;
       platforms = platforms.all;
@@ -568,7 +568,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://spotbugs.github.io/;
+      homepage = "https://spotbugs.github.io/";
       description = "Plugin that uses static analysis to look for bugs in Java code";
       license = licenses.lgpl21;
       platforms = platforms.all;
@@ -591,7 +591,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://testng.org/doc/;
+      homepage = "https://testng.org/doc/";
       description = "Eclipse plugin for the TestNG testing framework";
       license = licenses.asl20;
       platforms = platforms.all;
@@ -636,7 +636,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/oyse/yedit;
+      homepage = "https://github.com/oyse/yedit";
       description = "A YAML editor plugin for Eclipse";
       license = licenses.epl10;
       platforms = platforms.all;
@@ -654,7 +654,7 @@ rec {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://www.eclipse.org/gef/zest/;
+      homepage = "https://www.eclipse.org/gef/zest/";
       description = "The Eclipse Visualization Toolkit";
       platforms = platforms.all;
       maintainers = [ maintainers.romildo ];
diff --git a/pkgs/applications/editors/edit/default.nix b/pkgs/applications/editors/edit/default.nix
index 27c13c0cb3968..052206002610e 100644
--- a/pkgs/applications/editors/edit/default.nix
+++ b/pkgs/applications/editors/edit/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "20160425";
 
   src = fetchgit {
-    url = git://c9x.me/ed.git;
+    url = "git://c9x.me/ed.git";
     rev = "323d49b68c5e804ed3b8cada0e2274f1589b3484";
     sha256 = "0wv8i3ii7cd9bqhjpahwp2g5fcmyk365nc7ncmvl79cxbz3f7y8v";
   };
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A relaxing mix of Vi and ACME";
-    homepage = http://c9x.me/edit;
+    homepage = "http://c9x.me/edit";
     license = licenses.publicDomain;
     maintainers = [ maintainers.vrthra ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/elvis/default.nix b/pkgs/applications/editors/elvis/default.nix
index 4b7e4c8a3ca43..3a6c8c97b2219 100644
--- a/pkgs/applications/editors/elvis/default.nix
+++ b/pkgs/applications/editors/elvis/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
   configureFlags = [ "--ioctl=termios" ];
 
   meta = {
-    homepage = http://elvis.vi-editor.org/;
+    homepage = "http://elvis.vi-editor.org/";
     description = "A vi clone for Unix and other operating systems";
     license = stdenv.lib.licenses.free;
   };
diff --git a/pkgs/applications/editors/emacs-modes/cedet/default.nix b/pkgs/applications/editors/emacs-modes/cedet/default.nix
index 5fbe095c4f355..45f20fccad904 100644
--- a/pkgs/applications/editors/emacs-modes/cedet/default.nix
+++ b/pkgs/applications/editors/emacs-modes/cedet/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
     license = stdenv.lib.licenses.gpl2Plus;
 
-    homepage = http://cedet.sourceforge.net/;
+    homepage = "http://cedet.sourceforge.net/";
 
     # Fails with `semantic-idle.el:42:1:Error: Invalid function: class-p`
     broken = true;
diff --git a/pkgs/applications/editors/emacs-modes/color-theme-solarized/default.nix b/pkgs/applications/editors/emacs-modes/color-theme-solarized/default.nix
index 33f2ad79ea0c8..ba54e5f434129 100644
--- a/pkgs/applications/editors/emacs-modes/color-theme-solarized/default.nix
+++ b/pkgs/applications/editors/emacs-modes/color-theme-solarized/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Precision colors for machines and people";
-    homepage = http://ethanschoonover.com/solarized;
+    homepage = "http://ethanschoonover.com/solarized";
     maintainers = [ maintainers.samuelrivas ];
     license = licenses.mit;
     platforms = platforms.all;
diff --git a/pkgs/applications/editors/emacs-modes/ess-R-object-popup/default.nix b/pkgs/applications/editors/emacs-modes/ess-R-object-popup/default.nix
index 077e72f55764f..5beaed5824071 100644
--- a/pkgs/applications/editors/emacs-modes/ess-R-object-popup/default.nix
+++ b/pkgs/applications/editors/emacs-modes/ess-R-object-popup/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Popup descriptions of R objects";
-    homepage = https://github.com/myuhe/ess-R-object-popup.el;
+    homepage = "https://github.com/myuhe/ess-R-object-popup.el";
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/applications/editors/emacs-modes/helm-words/default.nix b/pkgs/applications/editors/emacs-modes/helm-words/default.nix
index c6e1c5a50f4a4..00879463276c9 100644
--- a/pkgs/applications/editors/emacs-modes/helm-words/default.nix
+++ b/pkgs/applications/editors/emacs-modes/helm-words/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Emacs major mode for jade and stylus";
-    homepage = https://github.com/brianc/helm-words;
+    homepage = "https://github.com/brianc/helm-words";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/editors/emacs-modes/hol_light/default.nix b/pkgs/applications/editors/emacs-modes/hol_light/default.nix
index 255b30d60ed11..34b74374b230b 100644
--- a/pkgs/applications/editors/emacs-modes/hol_light/default.nix
+++ b/pkgs/applications/editors/emacs-modes/hol_light/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "73";
 
   src = fetchsvn {
-    url = http://seanmcl-ocaml-lib.googlecode.com/svn/trunk/workshop/software/emacs;
+    url = "http://seanmcl-ocaml-lib.googlecode.com/svn/trunk/workshop/software/emacs";
     rev = version;
     sha256 = "3ca83098960439da149a47e1caff32536601559a77f04822be742a390c67feb7";
   };
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A HOL Light mode for Emacs";
-    homepage    = http://www.cl.cam.ac.uk/~jrh13/hol-light/;
+    homepage    = "http://www.cl.cam.ac.uk/~jrh13/hol-light/";
     license     = stdenv.lib.licenses.gpl2Plus;
     platforms   = stdenv.lib.platforms.all;
     maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
diff --git a/pkgs/applications/editors/emacs-modes/hsc3/default.nix b/pkgs/applications/editors/emacs-modes/hsc3/default.nix
index 75b72516a3cd2..6c2db85d7942e 100644
--- a/pkgs/applications/editors/emacs-modes/hsc3/default.nix
+++ b/pkgs/applications/editors/emacs-modes/hsc3/default.nix
@@ -9,7 +9,7 @@ in stdenv.mkDerivation {
   pname = "hsc3-mode";
   inherit version;
   src = fetchurl {
-    url = mirror://hackage/hsc3-0.15/hsc3-0.15.tar.gz;
+    url = "mirror://hackage/hsc3-0.15/hsc3-0.15.tar.gz";
     sha256 = "2f3b15655419cf8ebe25ab1c6ec22993b2589b4ffca7c3a75ce478ca78a0bde6";
   };
 
@@ -21,7 +21,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://rd.slavepianos.org/?t=hsc3;
+    homepage = "http://rd.slavepianos.org/?t=hsc3";
     description = "hsc3 mode package for Emacs";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/editors/emacs-modes/icicles/default.nix b/pkgs/applications/editors/emacs-modes/icicles/default.nix
index 27dcd1063bf2a..946342922289c 100644
--- a/pkgs/applications/editors/emacs-modes/icicles/default.nix
+++ b/pkgs/applications/editors/emacs-modes/icicles/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   installPhase = "mkdir -p $out/share/emacs/site-lisp/emacswiki/${pname}-${version}/; cp *.el *.elc $out/share/emacs/site-lisp/emacswiki/${pname}-${version}/";
 
   meta = {
-    homepage = https://www.emacswiki.org/emacs/Icicles;
+    homepage = "https://www.emacswiki.org/emacs/Icicles";
     description = "Enhance Emacs minibuffer input with cycling and powerful completion";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms   = emacs.meta.platforms;
diff --git a/pkgs/applications/editors/emacs-modes/ocaml/default.nix b/pkgs/applications/editors/emacs-modes/ocaml/default.nix
index becc2dc5dc9b8..4240263dd0b83 100644
--- a/pkgs/applications/editors/emacs-modes/ocaml/default.nix
+++ b/pkgs/applications/editors/emacs-modes/ocaml/default.nix
@@ -25,7 +25,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://caml.inria.fr;
+    homepage = "http://caml.inria.fr";
     description = "OCaml mode package for Emacs";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix b/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix
index 4d8f40074bdd1..93af03ce229fd 100644
--- a/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix
+++ b/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Insert org-mode links to items selected in various Mac apps";
-    homepage = https://orgmode.org/worg/org-contrib/org-mac-link.html;
+    homepage = "https://orgmode.org/worg/org-contrib/org-mac-link.html";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/editors/emacs-modes/perl-completion/default.nix b/pkgs/applications/editors/emacs-modes/perl-completion/default.nix
index 9f251f54d6aa9..7f2454c811a7a 100644
--- a/pkgs/applications/editors/emacs-modes/perl-completion/default.nix
+++ b/pkgs/applications/editors/emacs-modes/perl-completion/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Minor mode provides useful features for editing perl codes";
-    homepage = http://emacswiki.org/emacs/PerlCompletion;
+    homepage = "http://emacswiki.org/emacs/PerlCompletion";
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/applications/editors/emacs-modes/prolog/default.nix b/pkgs/applications/editors/emacs-modes/prolog/default.nix
index 337a1585b1b4c..7f5a097daa935 100644
--- a/pkgs/applications/editors/emacs-modes/prolog/default.nix
+++ b/pkgs/applications/editors/emacs-modes/prolog/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://bruda.ca/emacs/prolog_mode_for_emacs/;
+    homepage = "http://bruda.ca/emacs/prolog_mode_for_emacs/";
     description = "Prolog mode for Emacs";
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/applications/editors/emacs-modes/railgun/default.nix b/pkgs/applications/editors/emacs-modes/railgun/default.nix
index ba716e1dd13b1..8ca8d1feaa1e8 100644
--- a/pkgs/applications/editors/emacs-modes/railgun/default.nix
+++ b/pkgs/applications/editors/emacs-modes/railgun/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Propel yourself through a rails project with the power of magnets";
-    homepage = https://github.com/mbriggs/railgun.el;
+    homepage = "https://github.com/mbriggs/railgun.el";
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/applications/editors/emacs-modes/rect-mark/default.nix b/pkgs/applications/editors/emacs-modes/rect-mark/default.nix
index 54e5a89dd9f68..4320a88457a41 100644
--- a/pkgs/applications/editors/emacs-modes/rect-mark/default.nix
+++ b/pkgs/applications/editors/emacs-modes/rect-mark/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Mark a rectangle of text with highlighting";
-    homepage = http://emacswiki.org/emacs/RectangleMark;
+    homepage = "http://emacswiki.org/emacs/RectangleMark";
     license = stdenv.lib.licenses.gpl2Plus;
 
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/editors/emacs-modes/session-management-for-emacs/default.nix b/pkgs/applications/editors/emacs-modes/session-management-for-emacs/default.nix
index 165e0c13c8fe6..e4b739af05178 100644
--- a/pkgs/applications/editors/emacs-modes/session-management-for-emacs/default.nix
+++ b/pkgs/applications/editors/emacs-modes/session-management-for-emacs/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
        (add-hook 'after-init-hook 'session-initialize)
     */
     description = "Small session management for emacs";
-    homepage = http://emacs-session.sourceforge.net/;
+    homepage = "http://emacs-session.sourceforge.net/";
     license = "GPL";
   };
 }
diff --git a/pkgs/applications/editors/emacs-modes/sunrise-commander/default.nix b/pkgs/applications/editors/emacs-modes/sunrise-commander/default.nix
index fcb37e7ebad35..7e611d68a0a46 100644
--- a/pkgs/applications/editors/emacs-modes/sunrise-commander/default.nix
+++ b/pkgs/applications/editors/emacs-modes/sunrise-commander/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "sunrise-commander-6r435";
 
   src = fetchgit {
-    url = https://github.com/escherdragon/sunrise-commander.git;
+    url = "https://github.com/escherdragon/sunrise-commander.git";
     rev = "7a44ca7abd9fe79f87934c78d00dc2a91419a4f1";
     sha256 = "2909beccc9daaa79e70876ac6547088c2459b624c364dda1886fe4d7adc7708b";
   };
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Two-pane file manager for Emacs based on Dired and inspired by MC";
-    homepage = http://www.emacswiki.org/emacs/Sunrise_Commander;
+    homepage = "http://www.emacswiki.org/emacs/Sunrise_Commander";
     license = stdenv.lib.licenses.gpl3Plus;
 
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/editors/emacs-modes/tramp/default.nix b/pkgs/applications/editors/emacs-modes/tramp/default.nix
index 3b746c293d88c..b87390d4609f8 100644
--- a/pkgs/applications/editors/emacs-modes/tramp/default.nix
+++ b/pkgs/applications/editors/emacs-modes/tramp/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ emacs texinfo ];
   meta = {
     description = "Transparently access remote files from Emacs. Newer versions than built-in.";
-    homepage = https://www.gnu.org/software/tramp;
+    homepage = "https://www.gnu.org/software/tramp";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/editors/emacs-modes/yaoddmuse/default.nix b/pkgs/applications/editors/emacs-modes/yaoddmuse/default.nix
index 209a99245ecd6..4dc56894914e9 100644
--- a/pkgs/applications/editors/emacs-modes/yaoddmuse/default.nix
+++ b/pkgs/applications/editors/emacs-modes/yaoddmuse/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Comprehensive Emacs integration with Oddmuse wikis";
-    homepage = http://emacswiki.org/emacs/Yaoddmuse;
+    homepage = "http://emacswiki.org/emacs/Yaoddmuse";
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/applications/editors/emacs-modes/zeitgeist/default.nix b/pkgs/applications/editors/emacs-modes/zeitgeist/default.nix
index 9403a51df5324..c771f5423a953 100644
--- a/pkgs/applications/editors/emacs-modes/zeitgeist/default.nix
+++ b/pkgs/applications/editors/emacs-modes/zeitgeist/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Integreate Emacs with Zeitgeist";
-    homepage = http://zeitgeist-project.com/;
+    homepage = "http://zeitgeist-project.com/";
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/applications/editors/emacs/25.nix b/pkgs/applications/editors/emacs/25.nix
index e4643102f0ef2..1ee2f5d4fe7c1 100644
--- a/pkgs/applications/editors/emacs/25.nix
+++ b/pkgs/applications/editors/emacs/25.nix
@@ -121,7 +121,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The extensible, customizable GNU text editor";
-    homepage    = https://www.gnu.org/software/emacs/;
+    homepage    = "https://www.gnu.org/software/emacs/";
     license     = licenses.gpl3Plus;
     maintainers = with maintainers; [ lovek323 peti the-kenny jwiegley ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/editors/emacs/default.nix b/pkgs/applications/editors/emacs/default.nix
index 2b40eb77e2cf3..9d0fc45653859 100644
--- a/pkgs/applications/editors/emacs/default.nix
+++ b/pkgs/applications/editors/emacs/default.nix
@@ -132,7 +132,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The extensible, customizable GNU text editor";
-    homepage    = https://www.gnu.org/software/emacs/;
+    homepage    = "https://www.gnu.org/software/emacs/";
     license     = licenses.gpl3Plus;
     maintainers = with maintainers; [ lovek323 peti the-kenny jwiegley adisbladis ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/editors/emacs/macport.nix b/pkgs/applications/editors/emacs/macport.nix
index e9307c7e80b99..1624e62026af9 100644
--- a/pkgs/applications/editors/emacs/macport.nix
+++ b/pkgs/applications/editors/emacs/macport.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The extensible, customizable text editor";
-    homepage    = https://www.gnu.org/software/emacs/;
+    homepage    = "https://www.gnu.org/software/emacs/";
     license     = licenses.gpl3Plus;
     maintainers = with maintainers; [ jwiegley matthewbauer ];
     platforms   = platforms.darwin;
diff --git a/pkgs/applications/editors/featherpad/default.nix b/pkgs/applications/editors/featherpad/default.nix
index e48fba1551e78..c6089fd5308cd 100644
--- a/pkgs/applications/editors/featherpad/default.nix
+++ b/pkgs/applications/editors/featherpad/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ qtbase qtsvg qtx11extras ];
   meta = with stdenv.lib; {
     description = "Lightweight Qt5 Plain-Text Editor for Linux";
-    homepage = https://github.com/tsujan/FeatherPad;
+    homepage = "https://github.com/tsujan/FeatherPad";
     platforms = platforms.linux;
     maintainers = [ maintainers.flosse ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/editors/fte/default.nix b/pkgs/applications/editors/fte/default.nix
index ab149131b8082..f19a264c06a56 100644
--- a/pkgs/applications/editors/fte/default.nix
+++ b/pkgs/applications/editors/fte/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A free text editor for developers";
-    homepage = http://fte.sourceforge.net/;
+    homepage = "http://fte.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = [ maintainers.volth ];
     platforms = platforms.all;
diff --git a/pkgs/applications/editors/gnome-builder/default.nix b/pkgs/applications/editors/gnome-builder/default.nix
index 8e5af1e814594..b9f06e44a8756 100644
--- a/pkgs/applications/editors/gnome-builder/default.nix
+++ b/pkgs/applications/editors/gnome-builder/default.nix
@@ -149,7 +149,7 @@ stdenv.mkDerivation rec {
       currently recommend running gnome-builder inside a nix-shell with
       appropriate dependencies loaded.
     '';
-    homepage = https://wiki.gnome.org/Apps/Builder;
+    homepage = "https://wiki.gnome.org/Apps/Builder";
     license = licenses.gpl3Plus;
     maintainers = gnome3.maintainers;
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/gnome-latex/default.nix b/pkgs/applications/editors/gnome-latex/default.nix
index cfd3a4289901f..33a321329341f 100644
--- a/pkgs/applications/editors/gnome-latex/default.nix
+++ b/pkgs/applications/editors/gnome-latex/default.nix
@@ -38,7 +38,7 @@ in stdenv.mkDerivation {
   passthru.updateScript = gnome3.updateScript { packageName = pname; };
 
   meta = with stdenv.lib; {
-    homepage = https://wiki.gnome.org/Apps/GNOME-LaTeX;
+    homepage = "https://wiki.gnome.org/Apps/GNOME-LaTeX";
     description = "A LaTeX editor for the GNOME desktop";
     maintainers = [ maintainers.manveru ];
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/editors/gobby/default.nix b/pkgs/applications/editors/gobby/default.nix
index f194227932d08..e3d039e42232d 100644
--- a/pkgs/applications/editors/gobby/default.nix
+++ b/pkgs/applications/editors/gobby/default.nix
@@ -19,7 +19,7 @@ in stdenv.mkDerivation {
   preConfigure = "./autogen.sh";
 
   meta = with stdenv.lib; {
-    homepage = http://gobby.0x539.de/;
+    homepage = "http://gobby.0x539.de/";
     description = "A GTK-based collaborative editor supporting multiple documents in one session and a multi-user chat";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ maintainers.phreedom ];
diff --git a/pkgs/applications/editors/heme/default.nix b/pkgs/applications/editors/heme/default.nix
index 4e67fc304b184..7d1830c842b63 100644
--- a/pkgs/applications/editors/heme/default.nix
+++ b/pkgs/applications/editors/heme/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
   meta = with lib; {
     description = "Portable and fast console hex editor for unix operating systems";
-    homepage = http://heme.sourceforge.net/;
+    homepage = "http://heme.sourceforge.net/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/applications/editors/hexcurse/default.nix b/pkgs/applications/editors/hexcurse/default.nix
index c87694321f35e..a1b90b83d589b 100644
--- a/pkgs/applications/editors/hexcurse/default.nix
+++ b/pkgs/applications/editors/hexcurse/default.nix
@@ -15,19 +15,19 @@ stdenv.mkDerivation rec {
   patches = [
     # gcc7 compat
     (fetchpatch {
-      url = https://github.com/LonnyGomes/hexcurse/commit/d808cb7067d1df067f8b707fabbfaf9f8931484c.patch;
+      url = "https://github.com/LonnyGomes/hexcurse/commit/d808cb7067d1df067f8b707fabbfaf9f8931484c.patch";
       sha256 = "0h8345blmc401c6bivf0imn4cwii67264yrzxg821r46wrnfvyi2";
     })
     # gcc7 compat
     (fetchpatch {
-      url = https://github.com/LonnyGomes/hexcurse/commit/716b5d58ac859cc240b8ccb9cbd79ace3e0593c1.patch;
+      url = "https://github.com/LonnyGomes/hexcurse/commit/716b5d58ac859cc240b8ccb9cbd79ace3e0593c1.patch";
       sha256 = "0v6gbp6pjpmnzswlf6d97aywiy015g3kcmfrrkspsbb7lh1y3nix";
     })
   ];
 
   meta = with lib; {
     description = "ncurses-based console hexeditor written in C";
-    homepage = https://github.com/LonnyGomes/hexcurse;
+    homepage = "https://github.com/LonnyGomes/hexcurse";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/applications/editors/hexdino/default.nix b/pkgs/applications/editors/hexdino/default.nix
index 48cd58570f8a2..79e0027d50963 100644
--- a/pkgs/applications/editors/hexdino/default.nix
+++ b/pkgs/applications/editors/hexdino/default.nix
@@ -17,7 +17,7 @@ rustPlatform.buildRustPackage {
 
   meta = with stdenv.lib; {
     description = "A hex editor with vim like keybindings written in Rust";
-    homepage = https://github.com/Luz/hexdino;
+    homepage = "https://github.com/Luz/hexdino";
     license = licenses.mit;
     maintainers = [ maintainers.luz ];
     platforms = platforms.all;
diff --git a/pkgs/applications/editors/hexedit/default.nix b/pkgs/applications/editors/hexedit/default.nix
index 09191b38e1bc3..916dd4a15948a 100644
--- a/pkgs/applications/editors/hexedit/default.nix
+++ b/pkgs/applications/editors/hexedit/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "View and edit files in hexadecimal or in ASCII";
-    homepage = http://prigaux.chez.com/hexedit.html;
+    homepage = "http://prigaux.chez.com/hexedit.html";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/editors/howl/default.nix b/pkgs/applications/editors/howl/default.nix
index 5e5f2f8563cb8..975016d55417e 100644
--- a/pkgs/applications/editors/howl/default.nix
+++ b/pkgs/applications/editors/howl/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://howl.io/;
+    homepage = "https://howl.io/";
     description = "A general purpose, fast and lightweight editor with a keyboard-centric minimalistic user interface";
     license = licenses.mit;
     maintainers = with maintainers; [ pacien ];
diff --git a/pkgs/applications/editors/ht/default.nix b/pkgs/applications/editors/ht/default.nix
index fc1fe969bdc0d..096b69a5e82a7 100644
--- a/pkgs/applications/editors/ht/default.nix
+++ b/pkgs/applications/editors/ht/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "File editor/viewer/analyzer for executables";
-    homepage = http://hte.sourceforge.net;
+    homepage = "http://hte.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/applications/editors/jedit/default.nix b/pkgs/applications/editors/jedit/default.nix
index 21a6a8475182a..fd8b53372510d 100644
--- a/pkgs/applications/editors/jedit/default.nix
+++ b/pkgs/applications/editors/jedit/default.nix
@@ -3,11 +3,11 @@
 let
   version = "5.2.0";
   bcpg = fetchurl {
-    url = http://central.maven.org/maven2/org/bouncycastle/bcpg-jdk16/1.46/bcpg-jdk16-1.46.jar;
+    url = "http://central.maven.org/maven2/org/bouncycastle/bcpg-jdk16/1.46/bcpg-jdk16-1.46.jar";
     sha256 = "16xhmwks4l65m5x150nd23y5lyppha9sa5fj65rzhxw66gbli82d";
   };
   jsr305 = fetchurl {
-    url = http://central.maven.org/maven2/com/google/code/findbugs/jsr305/2.0.0/jsr305-2.0.0.jar;
+    url = "http://central.maven.org/maven2/com/google/code/findbugs/jsr305/2.0.0/jsr305-2.0.0.jar";
     sha256 = "0s74pv8qjc42c7q8nbc0c3b1hgx0bmk3b8vbk1z80p4bbgx56zqy";
   };
 in
@@ -58,7 +58,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Mature programmer's text editor (Java based)";
-    homepage = http://www.jedit.org;
+    homepage = "http://www.jedit.org";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = [ maintainers.vbgl ];
diff --git a/pkgs/applications/editors/jetbrains/default.nix b/pkgs/applications/editors/jetbrains/default.nix
index 8d5e8540aa142..5ff03918d1eba 100644
--- a/pkgs/applications/editors/jetbrains/default.nix
+++ b/pkgs/applications/editors/jetbrains/default.nix
@@ -15,7 +15,7 @@ let
       inherit name version src wmClass jdk;
       product = "CLion";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/clion/;
+        homepage = "https://www.jetbrains.com/clion/";
         inherit description license;
         longDescription = ''
           Enhancing productivity for every C and C++
@@ -83,7 +83,7 @@ let
       inherit name version src wmClass jdk;
       product = "DataGrip";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/datagrip/;
+        homepage = "https://www.jetbrains.com/datagrip/";
         inherit description license;
         longDescription = ''
           DataGrip is a new IDE from JetBrains built for database admins.
@@ -100,7 +100,7 @@ let
       inherit name version src wmClass jdk;
       product = "Goland";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/go/;
+        homepage = "https://www.jetbrains.com/go/";
         inherit description license;
         longDescription = ''
           Goland is the codename for a new commercial IDE by JetBrains
@@ -125,7 +125,7 @@ let
       inherit name version src wmClass jdk;
       product = "IDEA";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/idea/;
+        homepage = "https://www.jetbrains.com/idea/";
         inherit description license;
         longDescription = ''
           IDE for Java SE, Groovy & Scala development Powerful
@@ -143,7 +143,7 @@ let
       inherit name version src wmClass jdk;
       product = "PhpStorm";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/phpstorm/;
+        homepage = "https://www.jetbrains.com/phpstorm/";
         inherit description license;
         longDescription = ''
           PhpStorm provides an editor for PHP, HTML and JavaScript
@@ -160,7 +160,7 @@ let
       inherit name version src wmClass jdk;
       product = "PyCharm";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/pycharm/;
+        homepage = "https://www.jetbrains.com/pycharm/";
         inherit description license;
         longDescription = ''
           Python IDE with complete set of tools for productive
@@ -187,7 +187,7 @@ let
       inherit name version src wmClass jdk;
       product = "Rider";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/rider/;
+        homepage = "https://www.jetbrains.com/rider/";
         inherit description license;
         longDescription = ''
           JetBrains Rider is a new .NET IDE based on the IntelliJ
@@ -213,7 +213,7 @@ let
       inherit name version src wmClass jdk;
       product = "RubyMine";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/ruby/;
+        homepage = "https://www.jetbrains.com/ruby/";
         inherit description license;
         longDescription = description;
         maintainers = with maintainers; [ edwtjo ];
@@ -226,7 +226,7 @@ let
       inherit name version src wmClass jdk;
       product = "WebStorm";
       meta = with stdenv.lib; {
-        homepage = https://www.jetbrains.com/webstorm/;
+        homepage = "https://www.jetbrains.com/webstorm/";
         inherit description license;
         longDescription = ''
           WebStorm provides an editor for HTML, JavaScript (incl. Node.js),
diff --git a/pkgs/applications/editors/joe/default.nix b/pkgs/applications/editors/joe/default.nix
index 6f5839b3d06f6..bb227512387d2 100644
--- a/pkgs/applications/editors/joe/default.nix
+++ b/pkgs/applications/editors/joe/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A full featured terminal-based screen editor";
-    homepage = https://joe-editor.sourceforge.io;
+    homepage = "https://joe-editor.sourceforge.io";
     license = licenses.gpl2;
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/editors/jucipp/default.nix b/pkgs/applications/editors/jucipp/default.nix
index 2682c1e789b4a..53549986ed241 100644
--- a/pkgs/applications/editors/jucipp/default.nix
+++ b/pkgs/applications/editors/jucipp/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   version = "1.2.3";
 
   meta = {
-    homepage = https://github.com/cppit/jucipp;
+    homepage = "https://github.com/cppit/jucipp";
     description = "A lightweight, platform independent C++-IDE with support for C++11, C++14, and experimental C++17 features depending on libclang version";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/jupp/default.nix b/pkgs/applications/editors/jupp/default.nix
index 4a44b35a0fa77..9db44bc4008da 100644
--- a/pkgs/applications/editors/jupp/default.nix
+++ b/pkgs/applications/editors/jupp/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
       and has a lot of bugs fixed. It is based upon an older version of joe
       because these behave better overall.
     '';
-    homepage = http://mirbsd.de/jupp;
+    homepage = "http://mirbsd.de/jupp";
     license = licenses.gpl1;
     maintainers = with maintainers; [ AndersonTorres ];
   };
diff --git a/pkgs/applications/editors/jupyter/kernel.nix b/pkgs/applications/editors/jupyter/kernel.nix
index 43cea9fcae93d..fba884f5a2fd4 100644
--- a/pkgs/applications/editors/jupyter/kernel.nix
+++ b/pkgs/applications/editors/jupyter/kernel.nix
@@ -67,7 +67,7 @@ in
 
     meta = {
       description = "Wrapper to create jupyter notebook kernel definitions";
-      homepage = https://jupyter.org/;
+      homepage = "https://jupyter.org/";
       maintainers = with maintainers; [ aborsu ];
     };
   };
diff --git a/pkgs/applications/editors/kdevelop5/kdevelop-pg-qt.nix b/pkgs/applications/editors/kdevelop5/kdevelop-pg-qt.nix
index b33153138130d..ad83bd43af2f2 100644
--- a/pkgs/applications/editors/kdevelop5/kdevelop-pg-qt.nix
+++ b/pkgs/applications/editors/kdevelop5/kdevelop-pg-qt.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       KDevelop-PG-Qt is the parser-generator from KDevplatform.
       It is used for some KDevelop-languagesupport-plugins (Ruby, PHP, CSS...).
     '';
-    homepage = https://www.kdevelop.org;
+    homepage = "https://www.kdevelop.org";
     license = with stdenv.lib.licenses; [ lgpl2Plus ];
   };
 }
diff --git a/pkgs/applications/editors/kile/default.nix b/pkgs/applications/editors/kile/default.nix
index 494ad686ee3bb..f928dbb6ad13f 100644
--- a/pkgs/applications/editors/kile/default.nix
+++ b/pkgs/applications/editors/kile/default.nix
@@ -54,7 +54,7 @@ mkDerivation rec {
 
   meta = {
     description = "Kile is a user friendly TeX/LaTeX authoring tool for the KDE desktop environment";
-    homepage = https://www.kde.org/applications/office/kile/;
+    homepage = "https://www.kde.org/applications/office/kile/";
     maintainers = with lib.maintainers; [ fridh ];
     license = lib.licenses.gpl2Plus;
   };
diff --git a/pkgs/applications/editors/kodestudio/default.nix b/pkgs/applications/editors/kodestudio/default.nix
index 9d0d91f4be549..71fa2bcd41b50 100644
--- a/pkgs/applications/editors/kodestudio/default.nix
+++ b/pkgs/applications/editors/kodestudio/default.nix
@@ -125,8 +125,8 @@ in
         (with JavaScript coming soon). Using Kha or Kore you can access all
         hardware at the lowest possible level in a completely portable way.
       '';
-      homepage = http://kode.tech/;
-      downloadPage = https://github.com/Kode/KodeStudio/releases;
+      homepage = "http://kode.tech/";
+      downloadPage = "https://github.com/Kode/KodeStudio/releases";
       license = licenses.mit;
       maintainers = [ maintainers.patternspandemic ];
       platforms = [ "x86_64-linux" "i686-cygwin" ];
diff --git a/pkgs/applications/editors/leafpad/default.nix b/pkgs/applications/editors/leafpad/default.nix
index 508d2329edc4c..94fa0be017375 100644
--- a/pkgs/applications/editors/leafpad/default.nix
+++ b/pkgs/applications/editors/leafpad/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A notepad clone for GTK 2.0";
-    homepage = http://tarot.freeshell.org/leafpad;
+    homepage = "http://tarot.freeshell.org/leafpad";
     platforms = platforms.linux;
     maintainers = [ maintainers.flosse ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/editors/lighttable/default.nix b/pkgs/applications/editors/lighttable/default.nix
index 90e8c73e075d3..26c5ee4215279 100644
--- a/pkgs/applications/editors/lighttable/default.nix
+++ b/pkgs/applications/editors/lighttable/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The next generation code editor";
-    homepage = http://www.lighttable.com/;
+    homepage = "http://www.lighttable.com/";
     license = licenses.gpl3;
     maintainers = [ maintainers.matejc ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/editors/manuskript/default.nix b/pkgs/applications/editors/manuskript/default.nix
index dc8eb200fff95..deeb9b36c7194 100644
--- a/pkgs/applications/editors/manuskript/default.nix
+++ b/pkgs/applications/editors/manuskript/default.nix
@@ -42,7 +42,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = {
     description = "A open-source tool for writers";
-    homepage = http://www.theologeek.ch/manuskript;
+    homepage = "http://www.theologeek.ch/manuskript";
     longDescription = ''
     Manuskript is a tool for those writer who like to organize and
     plan everything before writing.  The snowflake method can help you
diff --git a/pkgs/applications/editors/micro/default.nix b/pkgs/applications/editors/micro/default.nix
index e6b93f20c4886..f9e7b38cbe0c7 100644
--- a/pkgs/applications/editors/micro/default.nix
+++ b/pkgs/applications/editors/micro/default.nix
@@ -19,7 +19,7 @@ buildGoPackage  rec {
   buildFlagsArray = [ "-ldflags=" "-X main.Version=${version}" ];
 
   meta = with stdenv.lib; {
-    homepage = https://micro-editor.github.io;
+    homepage = "https://micro-editor.github.io";
     description = "Modern and intuitive terminal-based text editor";
     license = licenses.mit;
     maintainers = with maintainers; [ dtzWill ];
diff --git a/pkgs/applications/editors/mindforger/default.nix b/pkgs/applications/editors/mindforger/default.nix
index 9cfcf95e78b16..1397ea2d586df 100644
--- a/pkgs/applications/editors/mindforger/default.nix
+++ b/pkgs/applications/editors/mindforger/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
      MindForger is actually more than an editor or IDE - it's human
      mind inspired personal knowledge management tool
     '';
-    homepage = https://www.mindforger.com;
+    homepage = "https://www.mindforger.com";
     license = licenses.gpl2Plus;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/editors/moe/default.nix b/pkgs/applications/editors/moe/default.nix
index 4e960524b94f7..060abda33d0d1 100644
--- a/pkgs/applications/editors/moe/default.nix
+++ b/pkgs/applications/editors/moe/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
       completion, directory browser, duplicate removal from prompt histories,
       delimiter matching, text conversion from/to UTF-8, romanization, etc.
     '';
-    homepage = https://www.gnu.org/software/moe/;
+    homepage = "https://www.gnu.org/software/moe/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/editors/music/tuxguitar/default.nix b/pkgs/applications/editors/music/tuxguitar/default.nix
index 8522ecf9c78fc..08841eb581002 100644
--- a/pkgs/applications/editors/music/tuxguitar/default.nix
+++ b/pkgs/applications/editors/music/tuxguitar/default.nix
@@ -37,7 +37,7 @@ in stdenv.mkDerivation rec {
       TuxGuitar is a multitrack guitar tablature editor and player written
       in Java-SWT. It can open GuitarPro, PowerTab and TablEdit files.
     '';
-    homepage = http://www.tuxguitar.com.ar/;
+    homepage = "http://www.tuxguitar.com.ar/";
     license = licenses.lgpl2;
     maintainers = [ maintainers.ardumont ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/nano/default.nix b/pkgs/applications/editors/nano/default.nix
index e3c315275dd5d..b4ce588050faa 100644
--- a/pkgs/applications/editors/nano/default.nix
+++ b/pkgs/applications/editors/nano/default.nix
@@ -45,7 +45,7 @@ in stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = https://www.nano-editor.org/;
+    homepage = "https://www.nano-editor.org/";
     description = "A small, user-friendly console text editor";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [
diff --git a/pkgs/applications/editors/nano/nanorc/default.nix b/pkgs/applications/editors/nano/nanorc/default.nix
index eab37fba19a74..5f3a1ac91bd67 100644
--- a/pkgs/applications/editors/nano/nanorc/default.nix
+++ b/pkgs/applications/editors/nano/nanorc/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Improved Nano Syntax Highlighting Files";
-    homepage = https://github.com/scopatz/nanorc;
+    homepage = "https://github.com/scopatz/nanorc";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ nequissimus ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/editors/neovim/default.nix b/pkgs/applications/editors/neovim/default.nix
index 2fff5cdce8543..475330a5fe57b 100644
--- a/pkgs/applications/editors/neovim/default.nix
+++ b/pkgs/applications/editors/neovim/default.nix
@@ -112,7 +112,7 @@ in
           modifications to the core source
         - Improve extensibility with a new plugin architecture
       '';
-      homepage    = https://www.neovim.io;
+      homepage    = "https://www.neovim.io";
       # "Contributions committed before b17d96 by authors who did not sign the
       # Contributor License Agreement (CLA) remain under the Vim license.
       # Contributions committed after b17d96 are licensed under Apache 2.0 unless
diff --git a/pkgs/applications/editors/neovim/neovim-remote.nix b/pkgs/applications/editors/neovim/neovim-remote.nix
index c77cfd9c2b6e6..06beff03f9041 100644
--- a/pkgs/applications/editors/neovim/neovim-remote.nix
+++ b/pkgs/applications/editors/neovim/neovim-remote.nix
@@ -22,7 +22,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = {
     description = "A tool that helps controlling nvim processes from a terminal";
-    homepage = https://github.com/mhinz/neovim-remote/;
+    homepage = "https://github.com/mhinz/neovim-remote/";
     license = licenses.mit;
     maintainers = with maintainers; [ edanaher ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/editors/notepadqq/default.nix b/pkgs/applications/editors/notepadqq/default.nix
index efda2c5836044..a51f5106930e2 100644
--- a/pkgs/applications/editors/notepadqq/default.nix
+++ b/pkgs/applications/editors/notepadqq/default.nix
@@ -32,7 +32,7 @@ mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = https://notepadqq.com/;
+    homepage = "https://notepadqq.com/";
     description = "Notepad++-like editor for the Linux desktop";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/nvi/default.nix b/pkgs/applications/editors/nvi/default.nix
index a7a6b35a24a06..e28b2b43061ea 100644
--- a/pkgs/applications/editors/nvi/default.nix
+++ b/pkgs/applications/editors/nvi/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://www.bostic.com/vi/;
+    homepage = "http://www.bostic.com/vi/";
     description = "The Berkeley Vi Editor";
     license = stdenv.lib.licenses.free;
   };
diff --git a/pkgs/applications/editors/nvpy/default.nix b/pkgs/applications/editors/nvpy/default.nix
index 567f475203527..dcf42b55c5c59 100644
--- a/pkgs/applications/editors/nvpy/default.nix
+++ b/pkgs/applications/editors/nvpy/default.nix
@@ -30,7 +30,7 @@ in pythonPackages.buildPythonApplication rec {
 
   meta = with pkgs.lib; {
     description = "A simplenote-syncing note-taking tool inspired by Notational Velocity";
-    homepage = https://github.com/cpbotha/nvpy;
+    homepage = "https://github.com/cpbotha/nvpy";
     platforms = platforms.linux;
     license = licenses.bsd3;
   };
diff --git a/pkgs/applications/editors/qxmledit/default.nix b/pkgs/applications/editors/qxmledit/default.nix
index 9e9766f04e83c..cb658e8fcdac3 100644
--- a/pkgs/applications/editors/qxmledit/default.nix
+++ b/pkgs/applications/editors/qxmledit/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple XML editor based on qt libraries" ;
-    homepage = https://sourceforge.net/projects/qxmledit;
+    homepage = "https://sourceforge.net/projects/qxmledit";
     license = licenses.lgpl2;
     platforms = platforms.all;
   } ;
diff --git a/pkgs/applications/editors/retext/default.nix b/pkgs/applications/editors/retext/default.nix
index e974238926167..7752313b2a7ed 100644
--- a/pkgs/applications/editors/retext/default.nix
+++ b/pkgs/applications/editors/retext/default.nix
@@ -54,7 +54,7 @@ in python.pkgs.buildPythonApplication {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/retext-project/retext/;
+    homepage = "https://github.com/retext-project/retext/";
     description = "Simple but powerful editor for Markdown and reStructuredText";
     license = licenses.gpl3;
     maintainers = with maintainers; [ klntsky ];
diff --git a/pkgs/applications/editors/rstudio/default.nix b/pkgs/applications/editors/rstudio/default.nix
index f10578b11680a..d429bb4bcbbfc 100644
--- a/pkgs/applications/editors/rstudio/default.nix
+++ b/pkgs/applications/editors/rstudio/default.nix
@@ -57,7 +57,7 @@ mkDerivation rec {
   dictionaries = largeDicts ++ otherDicts;
 
   mathJaxSrc = fetchurl {
-    url = https://s3.amazonaws.com/rstudio-buildtools/mathjax-26.zip;
+    url = "https://s3.amazonaws.com/rstudio-buildtools/mathjax-26.zip";
     sha256 = "0wbcqb9rbfqqvvhqr1pbqax75wp8ydqdyhp91fbqfqp26xzjv6lk";
   };
 
@@ -127,7 +127,7 @@ mkDerivation rec {
 
   meta = with lib;
     { description = "Set of integrated tools for the R language";
-      homepage = https://www.rstudio.com/;
+      homepage = "https://www.rstudio.com/";
       license = licenses.agpl3;
       maintainers = with maintainers; [ ehmry changlinli ciil ];
       platforms = platforms.linux;
diff --git a/pkgs/applications/editors/scite/default.nix b/pkgs/applications/editors/scite/default.nix
index 78dd0d095414a..4e92856fee241 100644
--- a/pkgs/applications/editors/scite/default.nix
+++ b/pkgs/applications/editors/scite/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "4.0.5";
 
   src = fetchurl {
-    url = https://www.scintilla.org/scite405.tgz;
+    url = "https://www.scintilla.org/scite405.tgz";
     sha256 = "0h16wk2986nkkhhdv5g4lxlcn02qwyja24x1r6vf02r1hf46b9q2";
   };
 
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.scintilla.org/SciTE.html;
+    homepage = "https://www.scintilla.org/SciTE.html";
     description = "SCIntilla based Text Editor";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/sigil/default.nix b/pkgs/applications/editors/sigil/default.nix
index ac171f60ead75..cbb9f7bd5b874 100644
--- a/pkgs/applications/editors/sigil/default.nix
+++ b/pkgs/applications/editors/sigil/default.nix
@@ -35,7 +35,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Free, open source, multi-platform ebook (ePub) editor";
-    homepage = https://github.com/Sigil-Ebook/Sigil/;
+    homepage = "https://github.com/Sigil-Ebook/Sigil/";
     license = licenses.gpl3;
     # currently unmaintained
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/standardnotes/default.nix b/pkgs/applications/editors/standardnotes/default.nix
index cd62c8bf65da7..18d9338f90932 100644
--- a/pkgs/applications/editors/standardnotes/default.nix
+++ b/pkgs/applications/editors/standardnotes/default.nix
@@ -50,7 +50,7 @@ in appimageTools.wrapType2 rec {
       Standard Notes is a private notes app that features unmatched simplicity,
       end-to-end encryption, powerful extensions, and open-source applications.
     '';
-    homepage = https://standardnotes.org;
+    homepage = "https://standardnotes.org";
     license = licenses.agpl3;
     maintainers = with maintainers; [ mgregoire ];
     platforms = [ "i386-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/editors/sublime/2/default.nix b/pkgs/applications/editors/sublime/2/default.nix
index 24639f3bfd462..b10008d0c4992 100644
--- a/pkgs/applications/editors/sublime/2/default.nix
+++ b/pkgs/applications/editors/sublime/2/default.nix
@@ -10,8 +10,8 @@ stdenv.mkDerivation rec {
       fetchurl {
         name = "sublimetext-2.0.2.tar.bz2";
         url = [
-          http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%202.0.2.tar.bz2
-          https://download.sublimetext.com/Sublime%20Text%202.0.2.tar.bz2
+          "http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%202.0.2.tar.bz2"
+          "https://download.sublimetext.com/Sublime%20Text%202.0.2.tar.bz2"
         ];
         sha256 = "026g5mppk28lzzzn9ibykcqkrd5msfmg0sc0z8w8jd7v3h28wcq7";
       }
@@ -19,8 +19,8 @@ stdenv.mkDerivation rec {
       fetchurl {
         name = "sublimetext-2.0.2.tar.bz2";
         url = [
-          http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%202.0.2.tar.bz2
-          https://download.sublimetext.com/Sublime%20Text%202.0.2%20x64.tar.bz2
+          "http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%202.0.2.tar.bz2"
+          "https://download.sublimetext.com/Sublime%20Text%202.0.2%20x64.tar.bz2"
         ];
         sha256 = "115b71nbv9mv8cz6bkjwpbdf2ywnjc1zy2d3080f6ck4sqqfvfh1";
       };
diff --git a/pkgs/applications/editors/sublime/3/common.nix b/pkgs/applications/editors/sublime/3/common.nix
index 8e52237d949d2..a75233fcf3598 100644
--- a/pkgs/applications/editors/sublime/3/common.nix
+++ b/pkgs/applications/editors/sublime/3/common.nix
@@ -145,7 +145,7 @@ in stdenv.mkDerivation (rec {
 
   meta = with stdenv.lib; {
     description = "Sophisticated text editor for code, markup and prose";
-    homepage = https://www.sublimetext.com/;
+    homepage = "https://www.sublimetext.com/";
     maintainers = with maintainers; [ jtojnar wmertens demin-dmitriy zimbatm ];
     license = licenses.unfree;
     platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/applications/editors/supertux-editor/default.nix b/pkgs/applications/editors/supertux-editor/default.nix
index 6714f917315c8..dc18bd694c696 100644
--- a/pkgs/applications/editors/supertux-editor/default.nix
+++ b/pkgs/applications/editors/supertux-editor/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Level editor for SuperTux";
-    homepage = https://github.com/SuperTux/supertux-editor;
+    homepage = "https://github.com/SuperTux/supertux-editor";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ mathnerd314 ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/tecoc/default.nix b/pkgs/applications/editors/tecoc/default.nix
index 48af4a99dadaa..3df13260d51f3 100644
--- a/pkgs/applications/editors/tecoc/default.nix
+++ b/pkgs/applications/editors/tecoc/default.nix
@@ -55,8 +55,8 @@ stdenv.mkDerivation rec {
 
       TECOC is a portable C implementation of TECO-11.
  '';
-    homepage = https://github.com/blakemcbride/TECOC;
-    license = {  url = https://github.com/blakemcbride/TECOC/tree/master/doc/readme-1st.txt; };
+    homepage = "https://github.com/blakemcbride/TECOC";
+    license = {  url = "https://github.com/blakemcbride/TECOC/tree/master/doc/readme-1st.txt"; };
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/editors/texmacs/common.nix b/pkgs/applications/editors/texmacs/common.nix
index ec2498aa69b9a..9479295e7471f 100644
--- a/pkgs/applications/editors/texmacs/common.nix
+++ b/pkgs/applications/editors/texmacs/common.nix
@@ -62,7 +62,7 @@ rec {
     Scheme extension language.  A native spreadsheet and tools for
     collaborative authoring are planned for later.
   '';
-    homepage = http://texmacs.org/;
+    homepage = "http://texmacs.org/";
     license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/editors/texmaker/default.nix b/pkgs/applications/editors/texmaker/default.nix
index c45025dd80cc1..0b78ff54c358f 100644
--- a/pkgs/applications/editors/texmaker/default.nix
+++ b/pkgs/applications/editors/texmaker/default.nix
@@ -28,7 +28,7 @@ mkDerivation rec {
 	LaTeX editing with completion, structure viewer, preview,
 	spell checking and support of any compilation chain.
 	'';
-    homepage = http://www.xm1math.net/texmaker/;
+    homepage = "http://www.xm1math.net/texmaker/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cfouche markuskowa ];
diff --git a/pkgs/applications/editors/texstudio/default.nix b/pkgs/applications/editors/texstudio/default.nix
index d6db89e5c5e2b..94837023ca0d8 100644
--- a/pkgs/applications/editors/texstudio/default.nix
+++ b/pkgs/applications/editors/texstudio/default.nix
@@ -24,7 +24,7 @@ mkDerivation rec {
       LaTeX editing with completion, structure viewer, preview,
       spell checking and support of any compilation chain.
     '';
-    homepage = http://texstudio.sourceforge.net;
+    homepage = "http://texstudio.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ ajs124 cfouche ];
diff --git a/pkgs/applications/editors/textadept/default.nix b/pkgs/applications/editors/textadept/default.nix
index 85006e51b6636..bb771c89010b1 100644
--- a/pkgs/applications/editors/textadept/default.nix
+++ b/pkgs/applications/editors/textadept/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   ];
 
   src = fetchhg {
-    url = http://foicica.com/hg/textadept;
+    url = "http://foicica.com/hg/textadept";
     rev = "textadept_${version}";
     sha256 = "0fai8xqddkkprmbf0cf8wwgv7ccfdb1iyim30nppm2m16whkc8fl";
   };
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An extensible text editor based on Scintilla with Lua scripting";
-    homepage = http://foicica.com/textadept;
+    homepage = "http://foicica.com/textadept";
     license = licenses.mit;
     maintainers = with maintainers; [ raskin mirrexagon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/editors/tweak/default.nix b/pkgs/applications/editors/tweak/default.nix
index 6bfce921d0f6e..3dc7d04ede388 100644
--- a/pkgs/applications/editors/tweak/default.nix
+++ b/pkgs/applications/editors/tweak/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An efficient hex editor";
-    homepage = http://www.chiark.greenend.org.uk/~sgtatham/tweak;
+    homepage = "http://www.chiark.greenend.org.uk/~sgtatham/tweak";
     license = licenses.mit;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/editors/typora/default.nix b/pkgs/applications/editors/typora/default.nix
index 09baf383f9725..bd183f97c126a 100644
--- a/pkgs/applications/editors/typora/default.nix
+++ b/pkgs/applications/editors/typora/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A minimal Markdown reading & writing app";
-    homepage = https://typora.io;
+    homepage = "https://typora.io";
     license = licenses.unfree;
     maintainers = with maintainers; [ jensbin worldofpeace ];
     platforms = [ "x86_64-linux"];
diff --git a/pkgs/applications/editors/uemacs/default.nix b/pkgs/applications/editors/uemacs/default.nix
index 0a2df6b6d4bb3..e14a07eb6835b 100644
--- a/pkgs/applications/editors/uemacs/default.nix
+++ b/pkgs/applications/editors/uemacs/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "2014-12-08";
 
   src = fetchgit {
-    url = git://git.kernel.org/pub/scm/editors/uemacs/uemacs.git;
+    url = "git://git.kernel.org/pub/scm/editors/uemacs/uemacs.git";
     rev = "8841922689769960fa074fbb053cb8507f2f3ed9";
     sha256 = "14yq7kpkax111cg6k7i3mnqk7sq7a65krq6qizzj7vvnm7bsj3sd";
   };
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
   buildInputs = [ ncurses ];
 
   meta = with stdenv.lib; {
-    homepage = https://git.kernel.org/cgit/editors/uemacs/uemacs.git;
+    homepage = "https://git.kernel.org/cgit/editors/uemacs/uemacs.git";
     description = "Torvalds Micro-emacs fork";
     longDescription = ''
       uEmacs/PK 4.0 is a full screen editor based on MicroEMACS 3.9e
diff --git a/pkgs/applications/editors/vbindiff/default.nix b/pkgs/applications/editors/vbindiff/default.nix
index d1aa59569e62b..110b7caaf81ac 100644
--- a/pkgs/applications/editors/vbindiff/default.nix
+++ b/pkgs/applications/editors/vbindiff/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A terminal visual binary diff viewer";
-    homepage = https://www.cjmweb.net/vbindiff/;
+    homepage = "https://www.cjmweb.net/vbindiff/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/editors/vim/default.nix b/pkgs/applications/editors/vim/default.nix
index ae4e9ac8a9c99..95d2076153cb3 100644
--- a/pkgs/applications/editors/vim/default.nix
+++ b/pkgs/applications/editors/vim/default.nix
@@ -2,7 +2,7 @@
 # default vimrc
 , vimrc ? fetchurl {
     name = "default-vimrc";
-    url = https://git.archlinux.org/svntogit/packages.git/plain/trunk/archlinux.vim?id=68f6d131750aa778807119e03eed70286a17b1cb;
+    url = "https://git.archlinux.org/svntogit/packages.git/plain/trunk/archlinux.vim?id=68f6d131750aa778807119e03eed70286a17b1cb";
     sha256 = "18ifhv5q9prd175q3vxbqf6qyvkk6bc7d2lhqdk0q78i68kv9y0c";
   }
 # apple frameworks
diff --git a/pkgs/applications/editors/vim/macvim.nix b/pkgs/applications/editors/vim/macvim.nix
index 92992b8896ab2..9eabadae3b05a 100644
--- a/pkgs/applications/editors/vim/macvim.nix
+++ b/pkgs/applications/editors/vim/macvim.nix
@@ -143,7 +143,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Vim - the text editor - for macOS";
-    homepage    = https://github.com/macvim-dev/macvim;
+    homepage    = "https://github.com/macvim-dev/macvim";
     license = licenses.vim;
     maintainers = with maintainers; [ cstrahan lilyball ];
     platforms   = platforms.darwin;
diff --git a/pkgs/applications/editors/vim/qvim.nix b/pkgs/applications/editors/vim/qvim.nix
index 81948918a114a..0e3a4a1505263 100644
--- a/pkgs/applications/editors/vim/qvim.nix
+++ b/pkgs/applications/editors/vim/qvim.nix
@@ -32,7 +32,7 @@ in {
   enableParallelBuilding = true; # test this
 
   src = fetchgit {
-    url = https://bitbucket.org/equalsraf/vim-qt.git;
+    url = "https://bitbucket.org/equalsraf/vim-qt.git";
     rev = "refs/tags/package-" + tag;
     inherit sha256;
   };
@@ -104,7 +104,7 @@ in {
 
   meta = with stdenv.lib; {
     description = "The most popular clone of the VI editor (Qt GUI fork)";
-    homepage    = https://bitbucket.org/equalsraf/vim-qt/wiki/Home;
+    homepage    = "https://bitbucket.org/equalsraf/vim-qt/wiki/Home";
     license = licenses.vim;
     maintainers = with maintainers; [ smironov ttuegel ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/editors/vis/default.nix b/pkgs/applications/editors/vis/default.nix
index 1bda6958206b7..85f78035a0f32 100644
--- a/pkgs/applications/editors/vis/default.nix
+++ b/pkgs/applications/editors/vis/default.nix
@@ -63,7 +63,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A vim like editor";
-    homepage = https://github.com/martanne/vis;
+    homepage = "https://github.com/martanne/vis";
     license = licenses.isc;
     maintainers = with maintainers; [ vrthra ramkromberg ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/editors/vscode/vscode.nix b/pkgs/applications/editors/vscode/vscode.nix
index 765520ea9a4c5..0f36bf164f00b 100644
--- a/pkgs/applications/editors/vscode/vscode.nix
+++ b/pkgs/applications/editors/vscode/vscode.nix
@@ -48,8 +48,8 @@ in
         and code refactoring. It is also customizable, so users can change the
         editor's theme, keyboard shortcuts, and preferences
       '';
-      homepage = https://code.visualstudio.com/;
-      downloadPage = https://code.visualstudio.com/Updates;
+      homepage = "https://code.visualstudio.com/";
+      downloadPage = "https://code.visualstudio.com/Updates";
       license = licenses.unfree;
       maintainers = with maintainers; [ eadwu synthetica ];
       platforms = [ "x86_64-linux" "x86_64-darwin" ];
diff --git a/pkgs/applications/editors/vscode/vscodium.nix b/pkgs/applications/editors/vscode/vscodium.nix
index 23a320ccce93f..8c884f77faa3d 100644
--- a/pkgs/applications/editors/vscode/vscodium.nix
+++ b/pkgs/applications/editors/vscode/vscodium.nix
@@ -51,8 +51,8 @@ in
         and code refactoring. It is also customizable, so users can change the
         editor's theme, keyboard shortcuts, and preferences
       '';
-      homepage = https://github.com/VSCodium/vscodium;
-      downloadPage = https://github.com/VSCodium/vscodium/releases;
+      homepage = "https://github.com/VSCodium/vscodium";
+      downloadPage = "https://github.com/VSCodium/vscodium/releases";
       license = licenses.mit;
       maintainers = with maintainers; [ synthetica ];
       platforms = [ "x86_64-linux" "x86_64-darwin" ];
diff --git a/pkgs/applications/editors/wily/default.nix b/pkgs/applications/editors/wily/default.nix
index aab3aecd7d693..ac741599bdab0 100644
--- a/pkgs/applications/editors/wily/default.nix
+++ b/pkgs/applications/editors/wily/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An emulation of ACME";
-    homepage = http://wily.sourceforge.net;
+    homepage = "http://wily.sourceforge.net";
     license = licenses.artistic1;
     maintainers = [ maintainers.vrthra ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/editors/wxhexeditor/default.nix b/pkgs/applications/editors/wxhexeditor/default.nix
index 4725d8143b479..9b0fd592a6a2e 100644
--- a/pkgs/applications/editors/wxhexeditor/default.nix
+++ b/pkgs/applications/editors/wxhexeditor/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   patches = [
     # https://github.com/EUA/wxHexEditor/issues/90
     (fetchpatch {
-      url = https://github.com/EUA/wxHexEditor/commit/d0fa3ddc3e9dc9b05f90b650991ef134f74eed01.patch;
+      url = "https://github.com/EUA/wxHexEditor/commit/d0fa3ddc3e9dc9b05f90b650991ef134f74eed01.patch";
       sha256 = "1wcb70hrnhq72frj89prcqylpqs74xrfz3kdfdkq84p5qfz9svyj";
     })
     ./missing-semicolon.patch
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
       a good reverse engineer tool like a good hex editor, you welcome.
       wxHexEditor could edit HDD/SDD disk devices or partitions in raw up to exabyte sizes.
     '';
-    homepage = http://www.wxhexeditor.org/;
+    homepage = "http://www.wxhexeditor.org/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/editors/xmlcopyeditor/default.nix b/pkgs/applications/editors/xmlcopyeditor/default.nix
index eeda097db2583..f3270fccdfe73 100644
--- a/pkgs/applications/editors/xmlcopyeditor/default.nix
+++ b/pkgs/applications/editors/xmlcopyeditor/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A fast, free, validating XML editor";
-    homepage = http://xml-copy-editor.sourceforge.net/;
+    homepage = "http://xml-copy-editor.sourceforge.net/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ candeira ];
diff --git a/pkgs/applications/editors/zile/default.nix b/pkgs/applications/editors/zile/default.nix
index ae3871bb87af8..c7c57a9e3ef83 100644
--- a/pkgs/applications/editors/zile/default.nix
+++ b/pkgs/applications/editors/zile/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
       compiles to about 130Kb.
     '';
 
-    homepage = https://www.gnu.org/software/zile/;
+    homepage = "https://www.gnu.org/software/zile/";
 
     license = licenses.gpl3Plus;
 
diff --git a/pkgs/applications/gis/grass/default.nix b/pkgs/applications/gis/grass/default.nix
index 8734fabfdcf91..cb574ffc8f18e 100644
--- a/pkgs/applications/gis/grass/default.nix
+++ b/pkgs/applications/gis/grass/default.nix
@@ -99,7 +99,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = https://grass.osgeo.org/;
+    homepage = "https://grass.osgeo.org/";
     description = "GIS software suite used for geospatial data management and analysis, image processing, graphics and maps production, spatial modeling, and visualization";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/gis/qgis/unwrapped.nix b/pkgs/applications/gis/qgis/unwrapped.nix
index 80115ab8243ec..2e11f22f517b3 100644
--- a/pkgs/applications/gis/qgis/unwrapped.nix
+++ b/pkgs/applications/gis/qgis/unwrapped.nix
@@ -49,7 +49,7 @@ in mkDerivation rec {
 
   meta = {
     description = "A Free and Open Source Geographic Information System";
-    homepage = http://www.qgis.org;
+    homepage = "http://www.qgis.org";
     license = lib.licenses.gpl2Plus;
     platforms = with lib.platforms; linux;
     maintainers = with lib.maintainers; [ lsix ];
diff --git a/pkgs/applications/gis/whitebox-tools/default.nix b/pkgs/applications/gis/whitebox-tools/default.nix
index a10e62be46733..d81a08e290089 100644
--- a/pkgs/applications/gis/whitebox-tools/default.nix
+++ b/pkgs/applications/gis/whitebox-tools/default.nix
@@ -19,7 +19,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "An advanced geospatial data analysis platform";
-    homepage = http://www.uoguelph.ca/~hydrogeo/WhiteboxTools/index.html;
+    homepage = "http://www.uoguelph.ca/~hydrogeo/WhiteboxTools/index.html";
     license = licenses.mit;
     maintainers = [ maintainers.mpickering ];
     platforms = platforms.all;
diff --git a/pkgs/applications/graphics/ImageMagick/7.0.nix b/pkgs/applications/graphics/ImageMagick/7.0.nix
index 31eebf7d0a9f3..c07c3957254b2 100644
--- a/pkgs/applications/graphics/ImageMagick/7.0.nix
+++ b/pkgs/applications/graphics/ImageMagick/7.0.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.imagemagick.org/;
+    homepage = "http://www.imagemagick.org/";
     description = "A software suite to create, edit, compose, or convert bitmap images";
     platforms = platforms.linux ++ platforms.darwin;
     license = licenses.asl20;
diff --git a/pkgs/applications/graphics/ImageMagick/default.nix b/pkgs/applications/graphics/ImageMagick/default.nix
index 9cfccc7425bb6..57ce02bb66109 100644
--- a/pkgs/applications/graphics/ImageMagick/default.nix
+++ b/pkgs/applications/graphics/ImageMagick/default.nix
@@ -96,7 +96,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.imagemagick.org/;
+    homepage = "http://www.imagemagick.org/";
     description = "A software suite to create, edit, compose, or convert bitmap images";
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ the-kenny ];
diff --git a/pkgs/applications/graphics/PythonMagick/default.nix b/pkgs/applications/graphics/PythonMagick/default.nix
index e35a0190d8bc6..487648d07ca1a 100644
--- a/pkgs/applications/graphics/PythonMagick/default.nix
+++ b/pkgs/applications/graphics/PythonMagick/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ python python.pkgs.boost imagemagick ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.imagemagick.org/script/api.php;
+    homepage = "http://www.imagemagick.org/script/api.php";
     license = licenses.imagemagick;
     description = "PythonMagick provides object oriented bindings for the ImageMagick Library.";
   };
diff --git a/pkgs/applications/graphics/ahoviewer/default.nix b/pkgs/applications/graphics/ahoviewer/default.nix
index 87bddf9099ee2..c5f1bf8680185 100644
--- a/pkgs/applications/graphics/ahoviewer/default.nix
+++ b/pkgs/applications/graphics/ahoviewer/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ahodesuka/ahoviewer;
+    homepage = "https://github.com/ahodesuka/ahoviewer";
     description = "A GTK2 image viewer, manga reader, and booru browser";
     maintainers = with maintainers; [ skrzyp xzfc ];
     license = licenses.mit;
diff --git a/pkgs/applications/graphics/alchemy/default.nix b/pkgs/applications/graphics/alchemy/default.nix
index 5132d5950aab8..6fc84e088dd39 100644
--- a/pkgs/applications/graphics/alchemy/default.nix
+++ b/pkgs/applications/graphics/alchemy/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       Experimental in nature, Alchemy lets you brainstorm visually to explore
       an expanded range of ideas and possibilities in a serendipitous way.
     '';
-    homepage = http://al.chemy.org/;
+    homepage = "http://al.chemy.org/";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.marcweber ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/animbar/default.nix b/pkgs/applications/graphics/animbar/default.nix
index c4f1b4218d079..771145d54b65f 100644
--- a/pkgs/applications/graphics/animbar/default.nix
+++ b/pkgs/applications/graphics/animbar/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 	names: picket fence animation, barrier grid animation, Moiré
 	animation, to name a few.
     '';
-    homepage = http://animbar.mnim.org;
+    homepage = "http://animbar.mnim.org";
     maintainers = with maintainers; [ leenaars ];
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/graphics/antimony/default.nix b/pkgs/applications/graphics/antimony/default.nix
index 75ba3ecd55dc2..363f3b8c84d90 100644
--- a/pkgs/applications/graphics/antimony/default.nix
+++ b/pkgs/applications/graphics/antimony/default.nix
@@ -44,7 +44,7 @@ in
 
     meta = with stdenv.lib; {
       description = "A computer-aided design (CAD) tool from a parallel universe";
-      homepage    = https://github.com/mkeeter/antimony;
+      homepage    = "https://github.com/mkeeter/antimony";
       license     = licenses.mit;
       maintainers = with maintainers; [ rnhmjoj ];
       platforms   = platforms.linux;
diff --git a/pkgs/applications/graphics/apitrace/default.nix b/pkgs/applications/graphics/apitrace/default.nix
index 5ce36f4f10e98..f6f9cb281a772 100644
--- a/pkgs/applications/graphics/apitrace/default.nix
+++ b/pkgs/applications/graphics/apitrace/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake ];
 
   meta = with stdenv.lib; {
-    homepage = https://apitrace.github.io;
+    homepage = "https://apitrace.github.io";
     description = "Tools to trace OpenGL, OpenGL ES, Direct3D, and DirectDraw APIs";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/autopanosiftc/default.nix b/pkgs/applications/graphics/autopanosiftc/default.nix
index c64604975ab01..14af98ebc48ba 100644
--- a/pkgs/applications/graphics/autopanosiftc/default.nix
+++ b/pkgs/applications/graphics/autopanosiftc/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "autopano-sift-C-2.5.1";
 
   src = fetchurl {
-    url = mirror://sourceforge/hugin/autopano-sift-C-2.5.1.tar.gz;
+    url = "mirror://sourceforge/hugin/autopano-sift-C-2.5.1.tar.gz";
     sha256 = "0dqk8ff82gmy4v5ns5nr9gpzkc1p7c2y8c8fkid102r47wsjk44s";
   };
 
@@ -12,13 +12,13 @@ stdenv.mkDerivation {
 
   patches = [
     (fetchurl {
-      url = https://gitweb.gentoo.org/repo/gentoo.git/plain/media-gfx/autopano-sift-C/files/autopano-sift-C-2.5.1-lm.patch;
+      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/media-gfx/autopano-sift-C/files/autopano-sift-C-2.5.1-lm.patch";
       sha256 = "1bfcr5sps0ip9gl4jprji5jgf9wkczz6d2clsjjlbsy8r3ixi3lv";
     })
   ];
 
   meta = {
-    homepage = http://hugin.sourceforge.net/;
+    homepage = "http://hugin.sourceforge.net/";
     description = "Implementation in C of the autopano-sift algorithm for automatically stitching panoramas";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/graphics/autotrace/default.nix b/pkgs/applications/graphics/autotrace/default.nix
index 57e95dfef1063..cd7937f8a5498 100644
--- a/pkgs/applications/graphics/autotrace/default.nix
+++ b/pkgs/applications/graphics/autotrace/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://autotrace.sourceforge.net/;
+    homepage = "http://autotrace.sourceforge.net/";
     description = "Utility for converting bitmap into vector graphics";
     platforms = platforms.unix;
     maintainers = with maintainers; [ hodapp ];
diff --git a/pkgs/applications/graphics/awesomebump/default.nix b/pkgs/applications/graphics/awesomebump/default.nix
index b827a12f81c82..c02140e1905df 100644
--- a/pkgs/applications/graphics/awesomebump/default.nix
+++ b/pkgs/applications/graphics/awesomebump/default.nix
@@ -53,7 +53,7 @@ in stdenv.mkDerivation {
   enableParallelBuilding = false;
 
   meta = {
-    homepage = https://github.com/kmkolasinski/AwesomeBump;
+    homepage = "https://github.com/kmkolasinski/AwesomeBump";
     description = "A program to generate normal, height, specular or ambient occlusion textures from a single image";
     license = lib.licenses.gpl3Plus;
     maintainers = [ lib.maintainers.eelco ];
diff --git a/pkgs/applications/graphics/batik/default.nix b/pkgs/applications/graphics/batik/default.nix
index 51156dea4a17f..3c78c8b6dbd23 100644
--- a/pkgs/applications/graphics/batik/default.nix
+++ b/pkgs/applications/graphics/batik/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "batik-1.6";
   builder = ./builder.sh;
   src = fetchurl {
-    url = http://tarballs.nixos.org/batik-1.6.zip;
+    url = "http://tarballs.nixos.org/batik-1.6.zip";
     sha256 = "0cf15dspmzcnfda8w5lbsdx28m4v2rpq1dv5zx0r0n99ihqd1sh6";
   };
 
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Java based toolkit for handling SVG";
-    homepage = https://xmlgraphics.apache.org/batik;
+    homepage = "https://xmlgraphics.apache.org/batik";
     license = licenses.asl20;
     platforms = platforms.unix;
     knownVulnerabilities = [
diff --git a/pkgs/applications/graphics/c3d/default.nix b/pkgs/applications/graphics/c3d/default.nix
index 55a5d49f7524c..61efec8dc9d45 100644
--- a/pkgs/applications/graphics/c3d/default.nix
+++ b/pkgs/applications/graphics/c3d/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
     ++ stdenv.lib.optional stdenv.isDarwin Cocoa;
 
   meta = with stdenv.lib; {
-    homepage = http://www.itksnap.org/c3d;
+    homepage = "http://www.itksnap.org/c3d";
     description = "Medical imaging processing tool";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/graphics/comical/default.nix b/pkgs/applications/graphics/comical/default.nix
index 2796a5535a03f..8e6e151aff6a4 100644
--- a/pkgs/applications/graphics/comical/default.nix
+++ b/pkgs/applications/graphics/comical/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Viewer of CBR and CBZ files, often used to store scanned comics";
-    homepage = http://comical.sourceforge.net/;
+    homepage = "http://comical.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/graphics/deskew/default.nix b/pkgs/applications/graphics/deskew/default.nix
index c35aaa044aef7..422c7a0e15e80 100644
--- a/pkgs/applications/graphics/deskew/default.nix
+++ b/pkgs/applications/graphics/deskew/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A command line tool for deskewing scanned text documents";
-    homepage = https://bitbucket.org/galfar/app-deskew/overview;
+    homepage = "https://bitbucket.org/galfar/app-deskew/overview";
     license = licenses.mit;
     maintainers = with maintainers; [ryantm];
     platforms = platforms.all;
diff --git a/pkgs/applications/graphics/dia/default.nix b/pkgs/applications/graphics/dia/default.nix
index 3984cfc17ca5e..6ec54201fbfa5 100644
--- a/pkgs/applications/graphics/dia/default.nix
+++ b/pkgs/applications/graphics/dia/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
   version = "0.97.3.20170622";
 
   src = fetchgit {
-    url = https://gitlab.gnome.org/GNOME/dia.git;
+    url = "https://gitlab.gnome.org/GNOME/dia.git";
     rev = "b86085dfe2b048a2d37d587adf8ceba6fb8bc43c";
     sha256 = "1fyxfrzdcs6blxhkw3bcgkksaf3byrsj4cbyrqgb4869k3ynap96";
   };
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Gnome Diagram drawing software";
-    homepage = http://live.gnome.org/Dia;
+    homepage = "http://live.gnome.org/Dia";
     maintainers = with maintainers; [ raskin ];
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/applications/graphics/digikam/default.nix b/pkgs/applications/graphics/digikam/default.nix
index e6e24e0e56f5d..50162166013e3 100644
--- a/pkgs/applications/graphics/digikam/default.nix
+++ b/pkgs/applications/graphics/digikam/default.nix
@@ -125,7 +125,7 @@ mkDerivation rec {
   meta = with lib; {
     description = "Photo Management Program";
     license = licenses.gpl2;
-    homepage = https://www.digikam.org;
+    homepage = "https://www.digikam.org";
     maintainers = with maintainers; [ the-kenny ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/graphics/displaycal/default.nix b/pkgs/applications/graphics/displaycal/default.nix
index 7a4db535b2b0d..7a99361a03d9f 100644
--- a/pkgs/applications/graphics/displaycal/default.nix
+++ b/pkgs/applications/graphics/displaycal/default.nix
@@ -20,7 +20,7 @@ in buildPythonApplication {
   enableParallelBuilding = true;
 
   src = fetchurl {
-    url = mirror://sourceforge/project/dispcalgui/release/3.5.0.0/DisplayCAL-3.5.0.0.tar.gz;
+    url = "mirror://sourceforge/project/dispcalgui/release/3.5.0.0/DisplayCAL-3.5.0.0.tar.gz";
     sha256 = "1j496sv8pbhby5hkkbp07k6bs3f7mb1l3dijmn2iga3kmix0fn5q";
   };
 
@@ -62,7 +62,7 @@ in buildPythonApplication {
 
   meta = {
     description = "Display Calibration and Characterization powered by Argyll CMS";
-    homepage = https://displaycal.net/;
+    homepage = "https://displaycal.net/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [stdenv.lib.maintainers.marcweber];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/graphics/dosage/default.nix b/pkgs/applications/graphics/dosage/default.nix
index e26886b070e5e..b491c3e3ead09 100644
--- a/pkgs/applications/graphics/dosage/default.nix
+++ b/pkgs/applications/graphics/dosage/default.nix
@@ -22,7 +22,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = {
     description = "A comic strip downloader and archiver";
-    homepage = https://dosage.rocks/;
+    homepage = "https://dosage.rocks/";
     license = stdenv.lib.licenses.mit;
   };
 }
diff --git a/pkgs/applications/graphics/draftsight/default.nix b/pkgs/applications/graphics/draftsight/default.nix
index 144c723da20f0..ccd4fd660f76c 100644
--- a/pkgs/applications/graphics/draftsight/default.nix
+++ b/pkgs/applications/graphics/draftsight/default.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation {
   meta = with stdenv.lib; {
     description = "2D design & drafting application, meant to be similar to AutoCAD";
     longDescription = "Professional-grade 2D design and drafting solution from Dassault Systèmes that lets you create, edit, view and mark up any kind of 2D CAD drawing.";
-    homepage = https://www.3ds.com/products-services/draftsight-cad-software/;
+    homepage = "https://www.3ds.com/products-services/draftsight-cad-software/";
     license = stdenv.lib.licenses.unfree;
     maintainers = with maintainers; [ hodapp ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/graphics/drawpile/default.nix b/pkgs/applications/graphics/drawpile/default.nix
index a8c4e6d14ba94..0ffcb5cdb410d 100644
--- a/pkgs/applications/graphics/drawpile/default.nix
+++ b/pkgs/applications/graphics/drawpile/default.nix
@@ -86,8 +86,8 @@ in mkDerivation rec {
 
   meta = {
     description = "A collaborative drawing program that allows multiple users to sketch on the same canvas simultaneously";
-    homepage = https://drawpile.net/;
-    downloadPage = https://drawpile.net/download/;
+    homepage = "https://drawpile.net/";
+    downloadPage = "https://drawpile.net/download/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ fgaz ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/graphics/epeg/default.nix b/pkgs/applications/graphics/epeg/default.nix
index 3b7bdfb8efc2d..bdbdf04bcd504 100644
--- a/pkgs/applications/graphics/epeg/default.nix
+++ b/pkgs/applications/graphics/epeg/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mattes/epeg;
+    homepage = "https://github.com/mattes/epeg";
     description = "Insanely fast JPEG/ JPG thumbnail scaling";
     platforms = platforms.linux ++ platforms.darwin;
     license = {
diff --git a/pkgs/applications/graphics/exrdisplay/default.nix b/pkgs/applications/graphics/exrdisplay/default.nix
index d8b08faf23982..7841e9d571b74 100644
--- a/pkgs/applications/graphics/exrdisplay/default.nix
+++ b/pkgs/applications/graphics/exrdisplay/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Application for viewing OpenEXR images on a display at various exposure settings";
-    homepage = http://openexr.com;
+    homepage = "http://openexr.com";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.bsd3;
   };
diff --git a/pkgs/applications/graphics/exrtools/default.nix b/pkgs/applications/graphics/exrtools/default.nix
index c8928540bb656..39c23eb4fe8c3 100644
--- a/pkgs/applications/graphics/exrtools/default.nix
+++ b/pkgs/applications/graphics/exrtools/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Collection of utilities for manipulating OpenEXR images";
-    homepage = http://scanline.ca/exrtools;
+    homepage = "http://scanline.ca/exrtools";
     platforms = platforms.linux;
     license = licenses.mit;
     maintainers = [ maintainers.juliendehos ];
diff --git a/pkgs/applications/graphics/fbida/default.nix b/pkgs/applications/graphics/fbida/default.nix
index 3e64783df3165..7f0167f983424 100644
--- a/pkgs/applications/graphics/fbida/default.nix
+++ b/pkgs/applications/graphics/fbida/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Image viewing and manipulation programs including fbi, fbgs, ida, exiftran and thumbnail.cgi";
-    homepage = https://www.kraxel.org/blog/linux/fbida/;
+    homepage = "https://www.kraxel.org/blog/linux/fbida/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/fig2dev/default.nix b/pkgs/applications/graphics/fig2dev/default.nix
index c364badc1742f..cd7db3d29c50d 100644
--- a/pkgs/applications/graphics/fig2dev/default.nix
+++ b/pkgs/applications/graphics/fig2dev/default.nix
@@ -18,7 +18,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Tool to convert Xfig files to other formats";
-    homepage = http://mcj.sourceforge.net/;
+    homepage = "http://mcj.sourceforge.net/";
     license = licenses.xfig;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/graphics/fluxus/default.nix b/pkgs/applications/graphics/fluxus/default.nix
index d7841fde82377..a53eb806bcf1b 100644
--- a/pkgs/applications/graphics/fluxus/default.nix
+++ b/pkgs/applications/graphics/fluxus/default.nix
@@ -90,7 +90,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Livecoding environment for 3D graphics, sound, and games";
     license = licenses.gpl2;
-    homepage = http://www.pawfal.org/fluxus/;
+    homepage = "http://www.pawfal.org/fluxus/";
     maintainers = [ maintainers.brainrape ];
   };
 }
diff --git a/pkgs/applications/graphics/fondo/default.nix b/pkgs/applications/graphics/fondo/default.nix
index 7b186312301d1..877328e8823ea 100644
--- a/pkgs/applications/graphics/fondo/default.nix
+++ b/pkgs/applications/graphics/fondo/default.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Find the most beautiful wallpapers for your desktop";
-    homepage = https://github.com/calo001/fondo;
+    homepage = "https://github.com/calo001/fondo";
     license = licenses.agpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/fontmatrix/default.nix b/pkgs/applications/graphics/fontmatrix/default.nix
index 3b86629760327..99ca119b3bcd3 100644
--- a/pkgs/applications/graphics/fontmatrix/default.nix
+++ b/pkgs/applications/graphics/fontmatrix/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Fontmatrix is a free/libre font explorer for Linux, Windows and Mac";
-    homepage = https://github.com/fontmatrix/fontmatrix;
+    homepage = "https://github.com/fontmatrix/fontmatrix";
     license = licenses.gpl2;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/graphics/freepv/default.nix b/pkgs/applications/graphics/freepv/default.nix
index 57321220fb144..11d203746e1ae 100644
--- a/pkgs/applications/graphics/freepv/default.nix
+++ b/pkgs/applications/graphics/freepv/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   name = "freepv-0.3.0";
 
   src = fetchurl {
-    url = mirror://sourceforge/freepv/freepv-0.3.0.tar.gz;
+    url = "mirror://sourceforge/freepv/freepv-0.3.0.tar.gz";
     sha256 = "1w19abqjn64w47m35alg7bcdl1p97nf11zn64cp4p0dydihmhv56";
   };
 
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Open source panorama viewer using GL";
-    homepage = http://freepv.sourceforge.net/;
+    homepage = "http://freepv.sourceforge.net/";
     license = [ stdenv.lib.licenses.lgpl21 ];
   };
 }
diff --git a/pkgs/applications/graphics/gcolor2/default.nix b/pkgs/applications/graphics/gcolor2/default.nix
index f729c9c2bba21..f585a0c5d29c1 100644
--- a/pkgs/applications/graphics/gcolor2/default.nix
+++ b/pkgs/applications/graphics/gcolor2/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Simple GTK 2 color selector";
-    homepage = http://gcolor2.sourceforge.net/;
+    homepage = "http://gcolor2.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ notthemessiah ];
     platforms = with stdenv.lib.platforms; unix;
diff --git a/pkgs/applications/graphics/gcolor3/default.nix b/pkgs/applications/graphics/gcolor3/default.nix
index 67be3ba6782c8..1c1c6ba08ee28 100644
--- a/pkgs/applications/graphics/gcolor3/default.nix
+++ b/pkgs/applications/graphics/gcolor3/default.nix
@@ -34,7 +34,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A simple color chooser written in GTK3";
-    homepage = https://www.hjdskes.nl/projects/gcolor3/;
+    homepage = "https://www.hjdskes.nl/projects/gcolor3/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/graphics/geeqie/default.nix b/pkgs/applications/graphics/geeqie/default.nix
index 4275c6f0dcfd3..51c066196efde 100644
--- a/pkgs/applications/graphics/geeqie/default.nix
+++ b/pkgs/applications/graphics/geeqie/default.nix
@@ -61,7 +61,7 @@ stdenv.mkDerivation rec {
 
     license = licenses.gpl2Plus;
 
-    homepage = http://geeqie.sourceforge.net;
+    homepage = "http://geeqie.sourceforge.net";
 
     maintainers = with maintainers; [ jfrankenau pSub ];
     platforms = platforms.gnu ++ platforms.linux;
diff --git a/pkgs/applications/graphics/gimp/plugins/default.nix b/pkgs/applications/graphics/gimp/plugins/default.nix
index 0a06c42b5fc01..0b5e6a7f379f0 100644
--- a/pkgs/applications/graphics/gimp/plugins/default.nix
+++ b/pkgs/applications/graphics/gimp/plugins/default.nix
@@ -45,7 +45,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
     */
     name = "gap-2.6.0";
     src = fetchurl {
-      url = https://ftp.gimp.org/pub/gimp/plug-ins/v2.6/gap/gimp-gap-2.6.0.tar.bz2;
+      url = "https://ftp.gimp.org/pub/gimp/plug-ins/v2.6/gap/gimp-gap-2.6.0.tar.bz2";
       sha256 = "1jic7ixcmsn4kx2cn32nc5087rk6g8xsrz022xy11yfmgvhzb0ql";
     };
     NIX_LDFLAGS = "-lm";
@@ -56,7 +56,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
     hardeningDisable = [ "format" ];
     meta = with stdenv.lib; {
       description = "The GIMP Animation Package";
-      homepage = https://www.gimp.org;
+      homepage = "https://www.gimp.org";
       # The main code is given in GPLv3, but it has ffmpeg in it, and I think ffmpeg license
       # falls inside "free".
       license = with licenses; [ gpl3 free ];
@@ -143,7 +143,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
     name = "wavelet-sharpen-0.1.2";
     NIX_LDFLAGS = "-lm";
     src = fetchurl {
-      url = http://registry.gimp.org/files/wavelet-sharpen-0.1.2.tar.gz;
+      url = "http://registry.gimp.org/files/wavelet-sharpen-0.1.2.tar.gz";
       sha256 = "0vql1k67i21g5ivaa1jh56rg427m0icrkpryrhg75nscpirfxxqw";
     };
     installPhase = "installPlugins src/wavelet-sharpen"; # TODO translations are not copied .. How to do this on nix?
@@ -156,7 +156,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
     name = "lqr-plugin-0.6.1";
     buildInputs = with pkgs; [ liblqr1 ];
     src = fetchurl {
-      url = http://registry.gimp.org/files/gimp-lqr-plugin-0.6.1.tar.bz2;
+      url = "http://registry.gimp.org/files/gimp-lqr-plugin-0.6.1.tar.bz2";
       sha256 = "00hklkpcimcbpjly4rjhfipaw096cpy768g9wixglwrsyqhil7l9";
     };
     #postInstall = ''mkdir -p $out/nix-support; echo "${liblqr1}" > "$out/nix-support/propagated-user-env-packages"'';
@@ -189,7 +189,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
     meta = {
       description = "GIMP plugin to correct lens distortion using the lensfun library and database";
 
-      homepage = http://lensfun.sebastiankraft.net/;
+      homepage = "http://lensfun.sebastiankraft.net/";
 
       license = stdenv.lib.licenses.gpl3Plus;
       maintainers = [ ];
@@ -203,7 +203,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
   exposureBlend = scriptDerivation {
     name = "exposure-blend";
     src = fetchurl {
-      url = http://tir.astro.utoledo.edu/jdsmith/code/eb/exposure-blend.scm;
+      url = "http://tir.astro.utoledo.edu/jdsmith/code/eb/exposure-blend.scm";
       sha256 = "1b6c9wzpklqras4wwsyw3y3jp6fjmhnnskqiwm5sabs8djknfxla";
     };
     meta.broken = true;
@@ -212,7 +212,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
   lightning = scriptDerivation {
     name = "Lightning";
     src = fetchurl {
-      url = http://registry.gimp.org/files/Lightning.scm;
+      url = "http://registry.gimp.org/files/Lightning.scm";
       sha256 = "c14a8f4f709695ede3f77348728a25b3f3ded420da60f3f8de3944b7eae98a49";
     };
   };
@@ -235,7 +235,7 @@ stdenv.lib.makeScope pkgs.newScope (self: with self; {
     # http://registry.gimp.org/node/153
     name = "lightning-gate";
     src = fetchurl {
-      url = http://registry.gimp.org/files/LightningGate.scm;
+      url = "http://registry.gimp.org/files/LightningGate.scm";
       sha256 = "181w1zi9a99kn2mfxjp43wkwcgw5vbb6iqjas7a9mhm8p04csys2";
     };
   };
diff --git a/pkgs/applications/graphics/glabels/default.nix b/pkgs/applications/graphics/glabels/default.nix
index fef296f45be20..be487fcb8a6bd 100644
--- a/pkgs/applications/graphics/glabels/default.nix
+++ b/pkgs/applications/graphics/glabels/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Create labels and business cards";
-    homepage = https://glabels.org/;
+    homepage = "https://glabels.org/";
     license = with licenses; [ gpl3Plus lgpl3Plus ];
     platforms = platforms.unix;
     maintainers = [ maintainers.nico202 ];
diff --git a/pkgs/applications/graphics/gnome-photos/default.nix b/pkgs/applications/graphics/gnome-photos/default.nix
index 6cbe5448b40a2..3d0397528bce6 100644
--- a/pkgs/applications/graphics/gnome-photos/default.nix
+++ b/pkgs/applications/graphics/gnome-photos/default.nix
@@ -117,7 +117,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Access, organize and share your photos";
-    homepage = https://wiki.gnome.org/Apps/Photos;
+    homepage = "https://wiki.gnome.org/Apps/Photos";
     license = licenses.gpl3Plus;
     maintainers = gnome3.maintainers;
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/gnuclad/default.nix b/pkgs/applications/graphics/gnuclad/default.nix
index 5b6dd42e09e55..fcb4bdb537437 100644
--- a/pkgs/applications/graphics/gnuclad/default.nix
+++ b/pkgs/applications/graphics/gnuclad/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkgconfig ];
 
   meta = with stdenv.lib; {
-    homepage = https://launchpad.net/gnuclad;
+    homepage = "https://launchpad.net/gnuclad";
     description = "gnuclad tries to help the environment by creating trees.  It's primary use will be generating cladogram trees for the GNU/Linux distro timeline project.";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/graphics/gocr/default.nix b/pkgs/applications/graphics/gocr/default.nix
index f5fa8ca9221dd..7c586374ec513 100644
--- a/pkgs/applications/graphics/gocr/default.nix
+++ b/pkgs/applications/graphics/gocr/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://jocr.sourceforge.net/;
+    homepage = "http://jocr.sourceforge.net/";
     description = "GPL Optical Character Recognition";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/graphics/goxel/default.nix b/pkgs/applications/graphics/goxel/default.nix
index 84fdb60c31efc..6fb5b91c2a92d 100644
--- a/pkgs/applications/graphics/goxel/default.nix
+++ b/pkgs/applications/graphics/goxel/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open Source 3D voxel editor";
-    homepage = https://guillaumechereau.github.io/goxel/;
+    homepage = "https://guillaumechereau.github.io/goxel/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ tilpner ];
diff --git a/pkgs/applications/graphics/gpicview/default.nix b/pkgs/applications/graphics/gpicview/default.nix
index 86867cd1cca73..9e3ab37c32233 100644
--- a/pkgs/applications/graphics/gpicview/default.nix
+++ b/pkgs/applications/graphics/gpicview/default.nix
@@ -17,8 +17,8 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A simple and fast image viewer for X";
-    homepage    = http://lxde.sourceforge.net/gpicview/;
-    repositories.git = git://lxde.git.sourceforge.net/gitroot/lxde/gpicview;
+    homepage    = "http://lxde.sourceforge.net/gpicview/";
+    repositories.git = "git://lxde.git.sourceforge.net/gitroot/lxde/gpicview";
     license     = licenses.gpl2;
     maintainers = with maintainers; [ lovek323 ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/graphics/gqview/default.nix b/pkgs/applications/graphics/gqview/default.nix
index d82238f925b38..965ac5db68219 100644
--- a/pkgs/applications/graphics/gqview/default.nix
+++ b/pkgs/applications/graphics/gqview/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
   name = "gqview-2.1.5";
 
   src = fetchurl {
-    url = mirror://sourceforge/gqview/gqview-2.1.5.tar.gz;
+    url = "mirror://sourceforge/gqview/gqview-2.1.5.tar.gz";
     sha256 = "0ilm5s7ps9kg4f5hzgjhg0xhn6zg0v9i7jnd67zrx9h7wsaa9zhj";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A fast image viewer";
-    homepage = http://gqview.sourceforge.net;
+    homepage = "http://gqview.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/graphics/grafx2/default.nix b/pkgs/applications/graphics/grafx2/default.nix
index 039bb1917d37b..2a2a6a6759891 100644
--- a/pkgs/applications/graphics/grafx2/default.nix
+++ b/pkgs/applications/graphics/grafx2/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Bitmap paint program inspired by the Amiga programs Deluxe Paint and Brilliance";
-    homepage = http://pulkomandy.tk/projects/GrafX2;
+    homepage = "http://pulkomandy.tk/projects/GrafX2";
     license = stdenv.lib.licenses.gpl2;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = [ stdenv.lib.maintainers.zoomulator ];
diff --git a/pkgs/applications/graphics/graphicsmagick/default.nix b/pkgs/applications/graphics/graphicsmagick/default.nix
index 403a5285e1501..be5114565ff59 100644
--- a/pkgs/applications/graphics/graphicsmagick/default.nix
+++ b/pkgs/applications/graphics/graphicsmagick/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.graphicsmagick.org;
+    homepage = "http://www.graphicsmagick.org";
     description = "Swiss army knife of image processing";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/graphics/gscan2pdf/default.nix b/pkgs/applications/graphics/gscan2pdf/default.nix
index d8f91638b91df..352b6b900cc65 100644
--- a/pkgs/applications/graphics/gscan2pdf/default.nix
+++ b/pkgs/applications/graphics/gscan2pdf/default.nix
@@ -100,7 +100,7 @@ perlPackages.buildPerlPackage rec {
 
   meta = {
     description = "A GUI to produce PDFs or DjVus from scanned documents";
-    homepage = http://gscan2pdf.sourceforge.net/;
+    homepage = "http://gscan2pdf.sourceforge.net/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ pacien ];
   };
diff --git a/pkgs/applications/graphics/guetzli/default.nix b/pkgs/applications/graphics/guetzli/default.nix
index d7b9642596838..ccddf907e94cc 100644
--- a/pkgs/applications/graphics/guetzli/default.nix
+++ b/pkgs/applications/graphics/guetzli/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Perceptual JPEG encoder";
     longDescription = "Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality.";
-    homepage = https://github.com/google/guetzli;
+    homepage = "https://github.com/google/guetzli";
     license = stdenv.lib.licenses.asl20;
     platforms = stdenv.lib.platforms.x86_64;
     maintainers = [ stdenv.lib.maintainers.seppeljordan ];
diff --git a/pkgs/applications/graphics/hugin/default.nix b/pkgs/applications/graphics/hugin/default.nix
index 8f7800a7323a6..7314ff893b00d 100644
--- a/pkgs/applications/graphics/hugin/default.nix
+++ b/pkgs/applications/graphics/hugin/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://hugin.sourceforge.net/;
+    homepage = "http://hugin.sourceforge.net/";
     description = "Toolkit for stitching photographs and assembling panoramas, together with an easy to use graphical front end";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ hrdinka ];
diff --git a/pkgs/applications/graphics/ideogram/default.nix b/pkgs/applications/graphics/ideogram/default.nix
index 3e17a045ecc11..4bf414cf8dd5d 100644
--- a/pkgs/applications/graphics/ideogram/default.nix
+++ b/pkgs/applications/graphics/ideogram/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Insert emoji anywhere, even in non-native apps - designed for elementary OS";
-    homepage = https://github.com/cassidyjames/ideogram;
+    homepage = "https://github.com/cassidyjames/ideogram";
     license = licenses.gpl2Plus;
     maintainers = pantheon.maintainers;
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/image_optim/default.nix b/pkgs/applications/graphics/image_optim/default.nix
index 385f9825e46f7..ba437eab4122e 100644
--- a/pkgs/applications/graphics/image_optim/default.nix
+++ b/pkgs/applications/graphics/image_optim/default.nix
@@ -58,7 +58,7 @@ bundlerApp {
 
   meta = with lib; {
     description = "Command line tool and ruby interface to optimize (lossless compress, optionally lossy) jpeg, png, gif and svg images using external utilities (advpng, gifsicle, jhead, jpeg-recompress, jpegoptim, jpegrescan, jpegtran, optipng, pngcrush, pngout, pngquant, svgo)";
-    homepage    = https://github.com/toy/image_optim;
+    homepage    = "https://github.com/toy/image_optim";
     license     = licenses.mit;
     maintainers = with maintainers; [ srghma nicknovitski ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/graphics/imagej/default.nix b/pkgs/applications/graphics/imagej/default.nix
index 6472712bcb400..d47369f5094a0 100644
--- a/pkgs/applications/graphics/imagej/default.nix
+++ b/pkgs/applications/graphics/imagej/default.nix
@@ -32,7 +32,7 @@ let
         --add-flags "-jar $out/share/java/ij.jar -ijpath $out/share"
     '';
     meta = with stdenv.lib; {
-      homepage = https://imagej.nih.gov/ij/;
+      homepage = "https://imagej.nih.gov/ij/";
       description = "Image processing and analysis in Java";
       longDescription = ''
         ImageJ is a public domain Java image processing program
diff --git a/pkgs/applications/graphics/imgcat/default.nix b/pkgs/applications/graphics/imgcat/default.nix
index 1fa3ec8ccc689..5943632930c57 100644
--- a/pkgs/applications/graphics/imgcat/default.nix
+++ b/pkgs/applications/graphics/imgcat/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "It's like cat, but for images";
-    homepage = https://github.com/eddieantonio/imgcat;
+    homepage = "https://github.com/eddieantonio/imgcat";
     license = licenses.isc;
     maintainers = with maintainers; [ jwiegley ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/graphics/imlibsetroot/default.nix b/pkgs/applications/graphics/imlibsetroot/default.nix
index 8ca4d71bb56cd..06549468efe98 100644
--- a/pkgs/applications/graphics/imlibsetroot/default.nix
+++ b/pkgs/applications/graphics/imlibsetroot/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A Xinerama Aware Background Changer";
-    homepage = http://robotmonkeys.net/2010/03/30/imlibsetroot/;
+    homepage = "http://robotmonkeys.net/2010/03/30/imlibsetroot/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ dwarfmaster ];
diff --git a/pkgs/applications/graphics/imv/default.nix b/pkgs/applications/graphics/imv/default.nix
index 26a6cabf7841f..88b4a8476658d 100644
--- a/pkgs/applications/graphics/imv/default.nix
+++ b/pkgs/applications/graphics/imv/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A command line image viewer for tiling window managers";
-    homepage    = https://github.com/eXeC64/imv;
+    homepage    = "https://github.com/eXeC64/imv";
     license     = licenses.gpl2;
     maintainers = with maintainers; [ rnhmjoj markus1189 ];
     platforms   = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/graphics/inkscape/default.nix b/pkgs/applications/graphics/inkscape/default.nix
index 3996b94ba14df..763c9f4db220e 100644
--- a/pkgs/applications/graphics/inkscape/default.nix
+++ b/pkgs/applications/graphics/inkscape/default.nix
@@ -83,7 +83,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     license = "GPL";
-    homepage = https://www.inkscape.org;
+    homepage = "https://www.inkscape.org";
     description = "Vector graphics editor";
     platforms = platforms.all;
     longDescription = ''
diff --git a/pkgs/applications/graphics/ipe/default.nix b/pkgs/applications/graphics/ipe/default.nix
index 0cb09ecb6430d..c6cf71cc67bc9 100644
--- a/pkgs/applications/graphics/ipe/default.nix
+++ b/pkgs/applications/graphics/ipe/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An editor for drawing figures";
-    homepage = http://ipe.otfried.org;
+    homepage = "http://ipe.otfried.org";
     license = stdenv.lib.licenses.gpl3Plus;
     longDescription = ''
       Ipe is an extensible drawing editor for creating figures in PDF and Postscript format.
diff --git a/pkgs/applications/graphics/jpegoptim/default.nix b/pkgs/applications/graphics/jpegoptim/default.nix
index cc1ca3a0ff2a2..265ce82b8ac3f 100644
--- a/pkgs/applications/graphics/jpegoptim/default.nix
+++ b/pkgs/applications/graphics/jpegoptim/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Optimize JPEG files";
-    homepage = https://www.kokkonen.net/tjko/projects.html ;
+    homepage = "https://www.kokkonen.net/tjko/projects.html";
     license = licenses.gpl2;
     maintainers = [ maintainers.aristid ];
     platforms = platforms.all;
diff --git a/pkgs/applications/graphics/jpegrescan/default.nix b/pkgs/applications/graphics/jpegrescan/default.nix
index 1c65c7da3a284..5fe35edabdf6f 100644
--- a/pkgs/applications/graphics/jpegrescan/default.nix
+++ b/pkgs/applications/graphics/jpegrescan/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "losslessly shrink any JPEG file";
-    homepage = https://github.com/kud/jpegrescan;
+    homepage = "https://github.com/kud/jpegrescan";
     license = licenses.publicDomain;
     maintainers = [ maintainers.ramkromberg ];
     platforms = platforms.all;
diff --git a/pkgs/applications/graphics/k3d/default.nix b/pkgs/applications/graphics/k3d/default.nix
index 31085cd8023dc..c74f35e4334af 100644
--- a/pkgs/applications/graphics/k3d/default.nix
+++ b/pkgs/applications/graphics/k3d/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     (fetchpatch { /* glibmm 2.50 fix */
-      url = https://github.com/K-3D/k3d/commit/c65889d0652490d88a573e47de7a9324bf27bff2.patch;
+      url = "https://github.com/K-3D/k3d/commit/c65889d0652490d88a573e47de7a9324bf27bff2.patch";
       sha256 = "162icv1hicr2dirkb9ijacvg9bhz5j30yfwg7b45ijavk8rns62j";
     })
   ];
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A 3D editor with support for procedural editing";
-    homepage = http://www.k-3d.org/;
+    homepage = "http://www.k-3d.org/";
     platforms = platforms.linux;
     maintainers = [ maintainers.raskin ];
     license = licenses.gpl2;
diff --git a/pkgs/applications/graphics/krita/default.nix b/pkgs/applications/graphics/krita/default.nix
index 3cc4834d756e4..3f7eb84ed8318 100644
--- a/pkgs/applications/graphics/krita/default.nix
+++ b/pkgs/applications/graphics/krita/default.nix
@@ -45,7 +45,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "A free and open source painting application";
-    homepage = https://krita.org/;
+    homepage = "https://krita.org/";
     maintainers = with maintainers; [ abbradar ];
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/graphics/krop/default.nix b/pkgs/applications/graphics/krop/default.nix
index 401e5f6fc570b..818fc63535ed8 100644
--- a/pkgs/applications/graphics/krop/default.nix
+++ b/pkgs/applications/graphics/krop/default.nix
@@ -28,7 +28,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = {
-    homepage = http://arminstraub.com/software/krop;
+    homepage = "http://arminstraub.com/software/krop";
     description = "Graphical tool to crop the pages of PDF files";
     longDescription = ''
     Krop is a tool that allows you to optimise your PDF files, and remove
diff --git a/pkgs/applications/graphics/leocad/default.nix b/pkgs/applications/graphics/leocad/default.nix
index 201a4fe113e3b..5e950eeac04ba 100644
--- a/pkgs/applications/graphics/leocad/default.nix
+++ b/pkgs/applications/graphics/leocad/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "CAD program for creating virtual LEGO models";
-    homepage = https://www.leocad.org/;
+    homepage = "https://www.leocad.org/";
     license = licenses.gpl2;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/graphics/luminance-hdr/default.nix b/pkgs/applications/graphics/luminance-hdr/default.nix
index 94899c937a86b..3359365cff1b1 100644
--- a/pkgs/applications/graphics/luminance-hdr/default.nix
+++ b/pkgs/applications/graphics/luminance-hdr/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake pkgconfig ];
 
   meta = with stdenv.lib; {
-    homepage = http://qtpfsgui.sourceforge.net/;
+    homepage = "http://qtpfsgui.sourceforge.net/";
     description = "A complete open source solution for HDR photography";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/meh/default.nix b/pkgs/applications/graphics/meh/default.nix
index 7ad8c388a203b..0b2e5bc377747 100644
--- a/pkgs/applications/graphics/meh/default.nix
+++ b/pkgs/applications/graphics/meh/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A minimal image viewer using raw XLib";
-    homepage = https://www.johnhawthorn.com/meh/;
+    homepage = "https://www.johnhawthorn.com/meh/";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/graphics/meshlab/default.nix b/pkgs/applications/graphics/meshlab/default.nix
index 9733f1e2efa07..6ac937dcb931f 100644
--- a/pkgs/applications/graphics/meshlab/default.nix
+++ b/pkgs/applications/graphics/meshlab/default.nix
@@ -126,7 +126,7 @@ in mkDerivation {
 
   meta = {
     description = "A system for processing and editing 3D triangular meshes.";
-    homepage = http://www.meshlab.net/;
+    homepage = "http://www.meshlab.net/";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [viric];
     platforms = with lib.platforms; linux;
diff --git a/pkgs/applications/graphics/minidjvu/default.nix b/pkgs/applications/graphics/minidjvu/default.nix
index d629c776194d9..2af79659cedb2 100644
--- a/pkgs/applications/graphics/minidjvu/default.nix
+++ b/pkgs/applications/graphics/minidjvu/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "minidjvu-0.8";
   src = fetchurl {
-    url = mirror://sourceforge/minidjvu/minidjvu-0.8.tar.gz;
+    url = "mirror://sourceforge/minidjvu/minidjvu-0.8.tar.gz";
     sha256 = "0jmpvy4g68k6xgplj9zsl6brg6vi81mx3nx2x9hfbr1f4zh95j79";
   };
 
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://djvu.sourceforge.net/djview4.html;
+    homepage = "http://djvu.sourceforge.net/djview4.html";
     description = "Black-and-white djvu page encoder and decoder that use interpage information";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.viric ];
diff --git a/pkgs/applications/graphics/mozjpeg/default.nix b/pkgs/applications/graphics/mozjpeg/default.nix
index 63cc4a3a8d359..e17664a018ab7 100644
--- a/pkgs/applications/graphics/mozjpeg/default.nix
+++ b/pkgs/applications/graphics/mozjpeg/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
       The idea is to reduce transfer times for JPEGs on the Web, thus reducing page load times.
     '';
-    homepage = https://github.com/mozilla/mozjpeg ;
+    homepage = "https://github.com/mozilla/mozjpeg";
     license = stdenv.lib.licenses.bsd3;
     maintainers = [ stdenv.lib.maintainers.aristid ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/graphics/mtpaint/default.nix b/pkgs/applications/graphics/mtpaint/default.nix
index 7274bdacd9d04..91278c9881fef 100644
--- a/pkgs/applications/graphics/mtpaint/default.nix
+++ b/pkgs/applications/graphics/mtpaint/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       Due to its simplicity and lack of dependencies it runs well on
       GNU/Linux, Windows and older PC hardware.
     '';
-    homepage = http://mtpaint.sourceforge.net/;
+    homepage = "http://mtpaint.sourceforge.net/";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.vklquevs ];
diff --git a/pkgs/applications/graphics/nomacs/default.nix b/pkgs/applications/graphics/nomacs/default.nix
index 48a79e8844e85..f0d9329bc5a9f 100644
--- a/pkgs/applications/graphics/nomacs/default.nix
+++ b/pkgs/applications/graphics/nomacs/default.nix
@@ -63,11 +63,11 @@ mkDerivation rec {
                 "-DUSE_SYSTEM_QUAZIP=ON"];
 
   meta = with stdenv.lib; {
-    homepage = https://nomacs.org;
+    homepage = "https://nomacs.org";
     description = "Qt-based image viewer";
     maintainers = [maintainers.ahmedtd];
     license = licenses.gpl3Plus;
-    repositories.git = https://github.com/nomacs/nomacs.git;
+    repositories.git = "https://github.com/nomacs/nomacs.git";
     inherit (qtbase.meta) platforms;
   };
 }
diff --git a/pkgs/applications/graphics/openimageio/2.x.nix b/pkgs/applications/graphics/openimageio/2.x.nix
index 9c4a8b229391d..89d49a1514577 100644
--- a/pkgs/applications/graphics/openimageio/2.x.nix
+++ b/pkgs/applications/graphics/openimageio/2.x.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.openimageio.org;
+    homepage = "http://www.openimageio.org";
     description = "A library and tools for reading and writing images";
     license = licenses.bsd3;
     maintainers = with maintainers; [ goibhniu jtojnar ];
diff --git a/pkgs/applications/graphics/openimageio/default.nix b/pkgs/applications/graphics/openimageio/default.nix
index 23cad7e859df1..1f2861e7109c9 100644
--- a/pkgs/applications/graphics/openimageio/default.nix
+++ b/pkgs/applications/graphics/openimageio/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.openimageio.org;
+    homepage = "http://www.openimageio.org";
     description = "A library and tools for reading and writing images";
     license = licenses.bsd3;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/graphics/openscad/default.nix b/pkgs/applications/graphics/openscad/default.nix
index 2c95f6d403f2c..95af658ddd36b 100644
--- a/pkgs/applications/graphics/openscad/default.nix
+++ b/pkgs/applications/graphics/openscad/default.nix
@@ -77,7 +77,7 @@ mkDerivation rec {
       machine parts but pretty sure is not what you are looking for when you are more
       interested in creating computer-animated movies.
     '';
-    homepage = http://openscad.org/;
+    homepage = "http://openscad.org/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers;
diff --git a/pkgs/applications/graphics/panotools/default.nix b/pkgs/applications/graphics/panotools/default.nix
index 719aca5096a58..c03bdd8331be8 100644
--- a/pkgs/applications/graphics/panotools/default.nix
+++ b/pkgs/applications/graphics/panotools/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   #doCheck = true;
 
   meta = {
-    homepage = http://panotools.sourceforge.net/;
+    homepage = "http://panotools.sourceforge.net/";
     description = "Free software suite for authoring and displaying virtual reality panoramas";
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/applications/graphics/paraview/default.nix b/pkgs/applications/graphics/paraview/default.nix
index ac01c28ebd4bf..15d70d1430812 100644
--- a/pkgs/applications/graphics/paraview/default.nix
+++ b/pkgs/applications/graphics/paraview/default.nix
@@ -59,7 +59,7 @@ mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.paraview.org/;
+    homepage = "http://www.paraview.org/";
     description = "3D Data analysis and visualization application";
     license = licenses.free;
     maintainers = with maintainers; [ guibert ];
diff --git a/pkgs/applications/graphics/pbrt/default.nix b/pkgs/applications/graphics/pbrt/default.nix
index 78f6d8bcbaff8..fa3034cb3b074 100644
--- a/pkgs/applications/graphics/pbrt/default.nix
+++ b/pkgs/applications/graphics/pbrt/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   buildInputs = [ git flex bison cmake zlib ];
 
   meta = with stdenv.lib; {
-    homepage = http://pbrt.org;
+    homepage = "http://pbrt.org";
     description = "The renderer described in the third edition of the book 'Physically Based Rendering: From Theory To Implementation'";
     platforms = platforms.linux ;
     license = licenses.bsd2;
diff --git a/pkgs/applications/graphics/pdfcpu/default.nix b/pkgs/applications/graphics/pdfcpu/default.nix
index f31506ce73398..b127be821c139 100644
--- a/pkgs/applications/graphics/pdfcpu/default.nix
+++ b/pkgs/applications/graphics/pdfcpu/default.nix
@@ -17,7 +17,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "A PDF processor written in Go";
-    homepage = https://pdfcpu.io;
+    homepage = "https://pdfcpu.io";
     license = licenses.asl20;
     maintainers = with maintainers; [ doronbehar ];
     platforms = platforms.all;
diff --git a/pkgs/applications/graphics/photoflow/default.nix b/pkgs/applications/graphics/photoflow/default.nix
index 78d16e6922611..9fec8b99c1bd0 100644
--- a/pkgs/applications/graphics/photoflow/default.nix
+++ b/pkgs/applications/graphics/photoflow/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A fully non-destructive photo retouching program providing a complete RAW image editing workflow";
-    homepage = https://aferrero2707.github.io/PhotoFlow/;
+    homepage = "https://aferrero2707.github.io/PhotoFlow/";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.MtP ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/photoqt/default.nix b/pkgs/applications/graphics/photoqt/default.nix
index 14c49d30004c5..71c63bc82aa23 100644
--- a/pkgs/applications/graphics/photoqt/default.nix
+++ b/pkgs/applications/graphics/photoqt/default.nix
@@ -40,7 +40,7 @@ mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = https://photoqt.org/;
+    homepage = "https://photoqt.org/";
     description = "Simple, yet powerful and good looking image viewer";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/graphics/phototonic/default.nix b/pkgs/applications/graphics/phototonic/default.nix
index 5e7fb5cf7a0a8..1c6c1b4335477 100644
--- a/pkgs/applications/graphics/phototonic/default.nix
+++ b/pkgs/applications/graphics/phototonic/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An image viewer and organizer";
-    homepage = https://sourceforge.net/projects/phototonic/;
+    homepage = "https://sourceforge.net/projects/phototonic/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/graphics/pinta/default.nix b/pkgs/applications/graphics/pinta/default.nix
index 1409037668489..af51c78a1698d 100644
--- a/pkgs/applications/graphics/pinta/default.nix
+++ b/pkgs/applications/graphics/pinta/default.nix
@@ -74,7 +74,7 @@ buildDotnetPackage rec {
   '';
 
   meta = {
-    homepage = http://www.pinta-project.com/;
+    homepage = "http://www.pinta-project.com/";
     description = "Drawing/editing program modeled after Paint.NET";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ ];
diff --git a/pkgs/applications/graphics/potrace/default.nix b/pkgs/applications/graphics/potrace/default.nix
index 35ab27bcbf638..dd8e84349fad8 100644
--- a/pkgs/applications/graphics/potrace/default.nix
+++ b/pkgs/applications/graphics/potrace/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = http://potrace.sourceforge.net/;
+    homepage = "http://potrace.sourceforge.net/";
     description = "A tool for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image";
     platforms = platforms.unix;
     maintainers = [ maintainers.pSub ];
diff --git a/pkgs/applications/graphics/pqiv/default.nix b/pkgs/applications/graphics/pqiv/default.nix
index 7639a2a9c7612..505f28a24510a 100644
--- a/pkgs/applications/graphics/pqiv/default.nix
+++ b/pkgs/applications/graphics/pqiv/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation (rec {
 
   meta = with stdenv.lib; {
     description = "Powerful image viewer with minimal UI";
-    homepage = http://www.pberndt.com/Programme/Linux/pqiv;
+    homepage = "http://www.pberndt.com/Programme/Linux/pqiv";
     license = licenses.gpl3;
     maintainers = [];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/processing/default.nix b/pkgs/applications/graphics/processing/default.nix
index 9972ea7570982..cad6a35ce3f6b 100644
--- a/pkgs/applications/graphics/processing/default.nix
+++ b/pkgs/applications/graphics/processing/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
     # do not download a file during build
     ${xmlstarlet}/bin/xmlstarlet ed --inplace -P -d '//get[@src="http://download.processing.org/reference.zip"]' build/build.xml
     install -D -m0444 ${fetchurl {
-                          url    = http://download.processing.org/reference.zip;
+                          url    = "http://download.processing.org/reference.zip";
                           sha256 = "198bpk8mzns6w5h0zdf50wr6iv7sgdi6v7jznj5rbsnpgyilxz35";
                         }
                        } ./java/reference.zip
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A language and IDE for electronic arts";
-    homepage = https://processing.org;
+    homepage = "https://processing.org";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/graphics/qcomicbook/default.nix b/pkgs/applications/graphics/qcomicbook/default.nix
index 4d416a7c106d2..4f7e5b931f47b 100644
--- a/pkgs/applications/graphics/qcomicbook/default.nix
+++ b/pkgs/applications/graphics/qcomicbook/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/stolowski/QComicBook;
+    homepage = "https://github.com/stolowski/QComicBook";
     description = "Comic book reader in Qt5";
     license = licenses.gpl2;
 
diff --git a/pkgs/applications/graphics/qiv/default.nix b/pkgs/applications/graphics/qiv/default.nix
index 750217d99188c..d3dd917d7b7dd 100644
--- a/pkgs/applications/graphics/qiv/default.nix
+++ b/pkgs/applications/graphics/qiv/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation (rec {
 
   meta = with stdenv.lib; {
     description = "Quick image viewer";
-    homepage = http://spiegl.de/qiv/;
+    homepage = "http://spiegl.de/qiv/";
     inherit version;
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/qscreenshot/default.nix b/pkgs/applications/graphics/qscreenshot/default.nix
index fafc76a76ffeb..1653ea9272062 100644
--- a/pkgs/applications/graphics/qscreenshot/default.nix
+++ b/pkgs/applications/graphics/qscreenshot/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple creation and editing of screenshots";
-    homepage = https://sourceforge.net/projects/qscreenshot/;
+    homepage = "https://sourceforge.net/projects/qscreenshot/";
     license = licenses.gpl2;
     platforms = platforms.all;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/graphics/rapid-photo-downloader/default.nix b/pkgs/applications/graphics/rapid-photo-downloader/default.nix
index afdd2262e504f..aa6db0accdba8 100644
--- a/pkgs/applications/graphics/rapid-photo-downloader/default.nix
+++ b/pkgs/applications/graphics/rapid-photo-downloader/default.nix
@@ -80,7 +80,7 @@ mkDerivationWith python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Photo and video importer for cameras, phones, and memory cards";
-    homepage = https://www.damonlynch.net/rapid/;
+    homepage = "https://www.damonlynch.net/rapid/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/graphics/rawtherapee/default.nix b/pkgs/applications/graphics/rawtherapee/default.nix
index 3f89b7f8b3a36..812c26f56e596 100644
--- a/pkgs/applications/graphics/rawtherapee/default.nix
+++ b/pkgs/applications/graphics/rawtherapee/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "RAW converter and digital photo processing software";
-    homepage = http://www.rawtherapee.com/;
+    homepage = "http://www.rawtherapee.com/";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [ jcumming mahe the-kenny ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/graphics/renderdoc/default.nix b/pkgs/applications/graphics/renderdoc/default.nix
index e345fcce01e34..bf0b92b6f6d45 100644
--- a/pkgs/applications/graphics/renderdoc/default.nix
+++ b/pkgs/applications/graphics/renderdoc/default.nix
@@ -65,7 +65,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A single-frame graphics debugger";
-    homepage = https://renderdoc.org/;
+    homepage = "https://renderdoc.org/";
     license = licenses.mit;
     longDescription = ''
       RenderDoc is a free MIT licensed stand-alone graphics debugger that
diff --git a/pkgs/applications/graphics/runwayml/default.nix b/pkgs/applications/graphics/runwayml/default.nix
index c3f747837e01d..eb8ecc34b8f35 100644
--- a/pkgs/applications/graphics/runwayml/default.nix
+++ b/pkgs/applications/graphics/runwayml/default.nix
@@ -37,7 +37,7 @@ in
 
   meta = with lib; {
     description = "Machine learning for creators";
-    homepage = https://runwayml.com/;
+    homepage = "https://runwayml.com/";
     license = licenses.unfree;
     maintainers = with maintainers; [ prusnak ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/graphics/sane/backends/brscan4/default.nix b/pkgs/applications/graphics/sane/backends/brscan4/default.nix
index cd75088ea53c8..22e8a2ca53607 100644
--- a/pkgs/applications/graphics/sane/backends/brscan4/default.nix
+++ b/pkgs/applications/graphics/sane/backends/brscan4/default.nix
@@ -86,7 +86,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "Brother brscan4 sane backend driver";
-    homepage = http://www.brother.com;
+    homepage = "http://www.brother.com";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ jraygauthier ];
diff --git a/pkgs/applications/graphics/sane/backends/brscan4/udev_rules_type1.nix b/pkgs/applications/graphics/sane/backends/brscan4/udev_rules_type1.nix
index da136a7f9e1e6..682e401c069bd 100644
--- a/pkgs/applications/graphics/sane/backends/brscan4/udev_rules_type1.nix
+++ b/pkgs/applications/graphics/sane/backends/brscan4/udev_rules_type1.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Brother type1 scanners udev rules";
-    homepage = http://www.brother.com;
+    homepage = "http://www.brother.com";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ jraygauthier ];
diff --git a/pkgs/applications/graphics/sane/backends/dsseries/default.nix b/pkgs/applications/graphics/sane/backends/dsseries/default.nix
index d4165be3784fd..37ac02987061e 100644
--- a/pkgs/applications/graphics/sane/backends/dsseries/default.nix
+++ b/pkgs/applications/graphics/sane/backends/dsseries/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Brother DSSeries SANE backend driver";
-    homepage = http://www.brother.com;
+    homepage = "http://www.brother.com";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ callahad ];
diff --git a/pkgs/applications/graphics/sane/frontends.nix b/pkgs/applications/graphics/sane/frontends.nix
index b00f8f6c58d7c..188431bda6c64 100644
--- a/pkgs/applications/graphics/sane/frontends.nix
+++ b/pkgs/applications/graphics/sane/frontends.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Scanner Access Now Easy";
-    homepage    = http://www.sane-project.org/;
+    homepage    = "http://www.sane-project.org/";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ peti ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/graphics/sane/xsane.nix b/pkgs/applications/graphics/sane/xsane.nix
index 09b431fdb116c..22a8f4dc3bdae 100644
--- a/pkgs/applications/graphics/sane/xsane.nix
+++ b/pkgs/applications/graphics/sane/xsane.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional gimpSupport gimp;
 
   meta = {
-    homepage = http://www.sane-project.org/;
+    homepage = "http://www.sane-project.org/";
     description = "Graphical scanning frontend for sane";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [peti];
diff --git a/pkgs/applications/graphics/scantailor/advanced.nix b/pkgs/applications/graphics/scantailor/advanced.nix
index f9d6c87675f7b..e4598193469b8 100644
--- a/pkgs/applications/graphics/scantailor/advanced.nix
+++ b/pkgs/applications/graphics/scantailor/advanced.nix
@@ -17,7 +17,7 @@ mkDerivation rec {
   buildInputs = [ libjpeg libpng libtiff boost qtbase ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/4lex4/scantailor-advanced;
+    homepage = "https://github.com/4lex4/scantailor-advanced";
     description = "Interactive post-processing tool for scanned pages";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/graphics/scantailor/default.nix b/pkgs/applications/graphics/scantailor/default.nix
index 14efe48f30dbe..bc54f3aa627a7 100644
--- a/pkgs/applications/graphics/scantailor/default.nix
+++ b/pkgs/applications/graphics/scantailor/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = http://scantailor.org/;
+    homepage = "http://scantailor.org/";
     description = "Interactive post-processing tool for scanned pages";
 
     license = stdenv.lib.licenses.gpl3Plus;
diff --git a/pkgs/applications/graphics/screencloud/default.nix b/pkgs/applications/graphics/screencloud/default.nix
index 88bbbd9d86462..11e37c4bf649d 100644
--- a/pkgs/applications/graphics/screencloud/default.nix
+++ b/pkgs/applications/graphics/screencloud/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://screencloud.net/;
+    homepage = "https://screencloud.net/";
     description = "Client for Screencloud, an easy to use screenshot sharing tool";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ forkk ];
diff --git a/pkgs/applications/graphics/shotwell/default.nix b/pkgs/applications/graphics/shotwell/default.nix
index f84986cb598ca..b03d0a01dd6f8 100644
--- a/pkgs/applications/graphics/shotwell/default.nix
+++ b/pkgs/applications/graphics/shotwell/default.nix
@@ -100,7 +100,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Popular photo organizer for the GNOME desktop";
-    homepage = https://wiki.gnome.org/Apps/Shotwell;
+    homepage = "https://wiki.gnome.org/Apps/Shotwell";
     license = licenses.lgpl21Plus;
     maintainers = with maintainers; [domenkozar];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/shutter/default.nix b/pkgs/applications/graphics/shutter/default.nix
index dd41ee4c3f845..cddc99eebe29e 100644
--- a/pkgs/applications/graphics/shutter/default.nix
+++ b/pkgs/applications/graphics/shutter/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Screenshot and annotation tool";
-    homepage = https://shutter-project.org/;
+    homepage = "https://shutter-project.org/";
     license = licenses.gpl3Plus;
     platforms = platforms.all;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/graphics/smartdeblur/default.nix b/pkgs/applications/graphics/smartdeblur/default.nix
index 314b4007aad50..0df161cd4731e 100644
--- a/pkgs/applications/graphics/smartdeblur/default.nix
+++ b/pkgs/applications/graphics/smartdeblur/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   cmakeFlags = [ "-DUSE_SYSTEM_FFTW=ON" ];
 
   meta = {
-    homepage = https://github.com/Y-Vladimir/SmartDeblur;
+    homepage = "https://github.com/Y-Vladimir/SmartDeblur";
     description = "Tool for restoring blurry and defocused images";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ ];
diff --git a/pkgs/applications/graphics/solvespace/default.nix b/pkgs/applications/graphics/solvespace/default.nix
index 7046caad295e2..bd084b4287dc1 100644
--- a/pkgs/applications/graphics/solvespace/default.nix
+++ b/pkgs/applications/graphics/solvespace/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "solvespace-2.3-20190501";
   rev = "e7b75f19c34c923780db776592b47152650d8f22";
   src = fetchgit {
-    url = https://github.com/solvespace/solvespace;
+    url = "https://github.com/solvespace/solvespace";
     inherit rev;
     sha256 = "07k4mbzxf0dmzwdhjx5nc09y7rn1schkaypsw9kz0l7ppylprpp2";
     fetchSubmodules = true;
@@ -46,6 +46,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3;
     maintainers = [ maintainers.edef ];
     platforms = platforms.linux;
-    homepage = http://solvespace.com;
+    homepage = "http://solvespace.com";
   };
 }
diff --git a/pkgs/applications/graphics/swingsane/default.nix b/pkgs/applications/graphics/swingsane/default.nix
index f56646e5aedd9..fc9132ec0b401 100644
--- a/pkgs/applications/graphics/swingsane/default.nix
+++ b/pkgs/applications/graphics/swingsane/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
       simultaneous scan jobs, image transformation jobs (deskew, binarize,
       crop, etc), PDF and PNG output.
     '';
-    homepage = http://swingsane.com/;
+    homepage = "http://swingsane.com/";
     license = licenses.asl20;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/graphics/sxiv/default.nix b/pkgs/applications/graphics/sxiv/default.nix
index f54299583286c..4cf0ae5557897 100644
--- a/pkgs/applications/graphics/sxiv/default.nix
+++ b/pkgs/applications/graphics/sxiv/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Simple X Image Viewer";
-    homepage = https://github.com/muennich/sxiv;
+    homepage = "https://github.com/muennich/sxiv";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/graphics/synfigstudio/default.nix b/pkgs/applications/graphics/synfigstudio/default.nix
index 188f7cb29343a..e2ffd16025857 100644
--- a/pkgs/applications/graphics/synfigstudio/default.nix
+++ b/pkgs/applications/graphics/synfigstudio/default.nix
@@ -119,7 +119,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A 2D animation program";
-    homepage = http://www.synfig.org;
+    homepage = "http://www.synfig.org";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/graphics/tesseract/tesseract3.nix b/pkgs/applications/graphics/tesseract/tesseract3.nix
index 157c0b9742bfb..dc9d4ac2d595d 100644
--- a/pkgs/applications/graphics/tesseract/tesseract3.nix
+++ b/pkgs/applications/graphics/tesseract/tesseract3.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "OCR engine";
-    homepage = https://github.com/tesseract-ocr/tesseract;
+    homepage = "https://github.com/tesseract-ocr/tesseract";
     license = stdenv.lib.licenses.asl20;
     maintainers = with stdenv.lib.maintainers; [ viric earvstedt ];
     platforms = with stdenv.lib.platforms; linux ++ darwin;
diff --git a/pkgs/applications/graphics/tesseract/tesseract4.nix b/pkgs/applications/graphics/tesseract/tesseract4.nix
index 95896337720a8..d7c3cacc1f961 100644
--- a/pkgs/applications/graphics/tesseract/tesseract4.nix
+++ b/pkgs/applications/graphics/tesseract/tesseract4.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "OCR engine";
-    homepage = https://github.com/tesseract-ocr/tesseract;
+    homepage = "https://github.com/tesseract-ocr/tesseract";
     license = stdenv.lib.licenses.asl20;
     maintainers = with stdenv.lib.maintainers; [ viric earvstedt ];
     platforms = with stdenv.lib.platforms; linux ++ darwin;
diff --git a/pkgs/applications/graphics/timelapse-deflicker/default.nix b/pkgs/applications/graphics/timelapse-deflicker/default.nix
index 8355545e8dd6d..ac382bb632780 100644
--- a/pkgs/applications/graphics/timelapse-deflicker/default.nix
+++ b/pkgs/applications/graphics/timelapse-deflicker/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple script to deflicker images taken for timelapses";
-    homepage = https://github.com/cyberang3l/timelapse-deflicker;
+    homepage = "https://github.com/cyberang3l/timelapse-deflicker";
     license = licenses.gpl3;
     maintainers = with maintainers; [ valeriangalliat ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/graphics/ufraw/default.nix b/pkgs/applications/graphics/ufraw/default.nix
index 131d83f0d58ea..9e05a41e84837 100644
--- a/pkgs/applications/graphics/ufraw/default.nix
+++ b/pkgs/applications/graphics/ufraw/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sergiomb2/ufraw;
+    homepage = "https://github.com/sergiomb2/ufraw";
 
     description = "Utility to read and manipulate raw images from digital cameras";
 
diff --git a/pkgs/applications/graphics/unigine-valley/default.nix b/pkgs/applications/graphics/unigine-valley/default.nix
index 09abfc60a5282..14ff5f9a519fa 100644
--- a/pkgs/applications/graphics/unigine-valley/default.nix
+++ b/pkgs/applications/graphics/unigine-valley/default.nix
@@ -107,7 +107,7 @@ in
 
     meta = {
       description = "The Unigine Valley GPU benchmarking tool";
-      homepage = http://unigine.com/products/benchmarks/valley/;
+      homepage = "http://unigine.com/products/benchmarks/valley/";
       license = stdenv.lib.licenses.unfree; # see also: $out/$instPath/documentation/License.pdf
       maintainers = [ stdenv.lib.maintainers.kierdavis ];
       platforms = ["x86_64-linux" "i686-linux"];
diff --git a/pkgs/applications/graphics/viewnior/default.nix b/pkgs/applications/graphics/viewnior/default.nix
index a80e89e72bcda..41463a7627ae7 100644
--- a/pkgs/applications/graphics/viewnior/default.nix
+++ b/pkgs/applications/graphics/viewnior/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
     license = stdenv.lib.licenses.gpl3;
 
-    homepage = http://siyanpanayotov.com/project/viewnior/;
+    homepage = "http://siyanpanayotov.com/project/viewnior/";
 
     maintainers = [ stdenv.lib.maintainers.smironov ];
 
diff --git a/pkgs/applications/graphics/vimiv/default.nix b/pkgs/applications/graphics/vimiv/default.nix
index fab85052df3b9..b5e9d0b8cf2dd 100644
--- a/pkgs/applications/graphics/vimiv/default.nix
+++ b/pkgs/applications/graphics/vimiv/default.nix
@@ -64,7 +64,7 @@ python3Packages.buildPythonApplication rec {
   postInstall = "make DESTDIR=\"$out\" install";
 
   meta = {
-    homepage = https://github.com/karlch/vimiv;
+    homepage = "https://github.com/karlch/vimiv";
     description = "An image viewer with Vim-like keybindings";
     license = lib.licenses.mit;
     platforms = lib.platforms.linux;
diff --git a/pkgs/applications/graphics/wings/default.nix b/pkgs/applications/graphics/wings/default.nix
index 8d6eca7ef32c5..19c30f3ecc4d1 100644
--- a/pkgs/applications/graphics/wings/default.nix
+++ b/pkgs/applications/graphics/wings/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.wings3d.com/;
+    homepage = "http://www.wings3d.com/";
     description = "Subdivision modeler inspired by Nendo and Mirai from Izware";
     license = stdenv.lib.licenses.tcltk;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/graphics/write_stylus/default.nix b/pkgs/applications/graphics/write_stylus/default.nix
index 0f1020b0b0784..b1bfbe3c4cf3d 100644
--- a/pkgs/applications/graphics/write_stylus/default.nix
+++ b/pkgs/applications/graphics/write_stylus/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.styluslabs.com/;
+    homepage = "http://www.styluslabs.com/";
     description = "Write is a word processor for handwriting.";
     platforms = platforms.linux;
     license = stdenv.lib.licenses.unfree;
diff --git a/pkgs/applications/graphics/xaos/default.nix b/pkgs/applications/graphics/xaos/default.nix
index e80362c386b98..767f3aa920bfb 100644
--- a/pkgs/applications/graphics/xaos/default.nix
+++ b/pkgs/applications/graphics/xaos/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://xaos.sourceforge.net/;
+    homepage = "http://xaos.sourceforge.net/";
     description = "Fractal viewer";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/graphics/xara/default.nix b/pkgs/applications/graphics/xara/default.nix
index 56388a8a2555a..5e3c252435cd1 100644
--- a/pkgs/applications/graphics/xara/default.nix
+++ b/pkgs/applications/graphics/xara/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   name = "xaralx-0.7r1785";
 
   src = fetchurl {
-    url = http://downloads2.xara.com/opensource/XaraLX-0.7r1785.tar.bz2;
+    url = "http://downloads2.xara.com/opensource/XaraLX-0.7r1785.tar.bz2";
     sha256 = "05xbzq1i1vw2mdsv7zjqfpxfv3g1j0g5kks0gq6sh373xd6y8lyh";
   };
 
diff --git a/pkgs/applications/graphics/xfractint/default.nix b/pkgs/applications/graphics/xfractint/default.nix
index ae4765fc9e769..8d36e4630dc57 100644
--- a/pkgs/applications/graphics/xfractint/default.nix
+++ b/pkgs/applications/graphics/xfractint/default.nix
@@ -24,6 +24,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.unfree;
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.linux;
-    homepage = https://www.fractint.net/;
+    homepage = "https://www.fractint.net/";
   };
 }
diff --git a/pkgs/applications/graphics/xournal/default.nix b/pkgs/applications/graphics/xournal/default.nix
index 6d10a7cae231c..8a5d9c3597b83 100644
--- a/pkgs/applications/graphics/xournal/default.nix
+++ b/pkgs/applications/graphics/xournal/default.nix
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://xournal.sourceforge.net/;
+    homepage = "http://xournal.sourceforge.net/";
     description = "Note-taking application (supposes stylus)";
     maintainers = [ maintainers.guibert ];
     license = licenses.gpl2;
diff --git a/pkgs/applications/graphics/xzgv/default.nix b/pkgs/applications/graphics/xzgv/default.nix
index de3f3a78988b1..67f43faf99a30 100644
--- a/pkgs/applications/graphics/xzgv/default.nix
+++ b/pkgs/applications/graphics/xzgv/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     mkdir -p $out/share/{app-install/desktop,applications,info,pixmaps}
   '';
   meta = with stdenv.lib; {
-    homepage = https://sourceforge.net/projects/xzgv/;
+    homepage = "https://sourceforge.net/projects/xzgv/";
     description = "Picture viewer for X with a thumbnail-based selector";
     license = licenses.gpl2;
     maintainers = [ maintainers.womfoo ];
diff --git a/pkgs/applications/graphics/zgv/default.nix b/pkgs/applications/graphics/zgv/default.nix
index 7b14d7750c3a3..6cc59a7e60bdd 100644
--- a/pkgs/applications/graphics/zgv/default.nix
+++ b/pkgs/applications/graphics/zgv/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     (fetchpatch {
-    url = https://foss.aueb.gr/mirrors/linux/gentoo/media-gfx/zgv/files/zgv-5.9-libpng15.patch;
+    url = "https://foss.aueb.gr/mirrors/linux/gentoo/media-gfx/zgv/files/zgv-5.9-libpng15.patch";
     sha256 = "1blw9n04c28bnwcmcn64si4f5zpg42s8yn345js88fyzi9zm19xw";
     })
     ./switch.patch
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.svgalib.org/rus/zgv/;
+    homepage = "http://www.svgalib.org/rus/zgv/";
     description = "Picture viewer with a thumbnail-based selector";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/kde/keditbookmarks.nix b/pkgs/applications/kde/keditbookmarks.nix
index 57741c03ad547..efe247df73763 100644
--- a/pkgs/applications/kde/keditbookmarks.nix
+++ b/pkgs/applications/kde/keditbookmarks.nix
@@ -9,7 +9,7 @@ mkDerivation {
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [ kio kparts kwindowsystem ];
   meta = with lib; {
-    homepage = http://www.kde.org;
+    homepage = "http://www.kde.org";
     license = with licenses; [ gpl2 lgpl21 fdl12 bsd3 ];
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/kde/kipi-plugins.nix b/pkgs/applications/kde/kipi-plugins.nix
index 5fb953acbd62e..180d066a87cf4 100644
--- a/pkgs/applications/kde/kipi-plugins.nix
+++ b/pkgs/applications/kde/kipi-plugins.nix
@@ -17,7 +17,7 @@ mkDerivation {
   meta = {
     description = "Plugins for KDE-based image applications";
     license = lib.licenses.gpl2;
-    homepage = https://cgit.kde.org/kipi-plugins.git;
+    homepage = "https://cgit.kde.org/kipi-plugins.git";
     maintainers = with lib.maintainers; [ ttuegel ];
   };
 }
diff --git a/pkgs/applications/kde/krdc.nix b/pkgs/applications/kde/krdc.nix
index 89ac92bb47453..2b0a1a5c51413 100644
--- a/pkgs/applications/kde/krdc.nix
+++ b/pkgs/applications/kde/krdc.nix
@@ -17,7 +17,7 @@ mkDerivation {
       --prefix PATH : ${lib.makeBinPath [ freerdp ]}
   '';
   meta = with lib; {
-    homepage = http://www.kde.org;
+    homepage = "http://www.kde.org";
     license = with licenses; [ gpl2 lgpl21 fdl12 bsd3 ];
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/kde/okular.nix b/pkgs/applications/kde/okular.nix
index 377fbe3339a7c..c399335c4a876 100644
--- a/pkgs/applications/kde/okular.nix
+++ b/pkgs/applications/kde/okular.nix
@@ -19,7 +19,7 @@ mkDerivation {
     qtdeclarative qtsvg threadweaver kcrash
   ] ++ lib.optional (!stdenv.isAarch64) chmlib;
   meta = with lib; {
-    homepage = http://www.kde.org;
+    homepage = "http://www.kde.org";
     license = with licenses; [ gpl2 lgpl21 fdl12 bsd3 ];
     maintainers = with maintainers; [ ttuegel ];
     platforms = lib.platforms.linux;
diff --git a/pkgs/applications/kde/yakuake.nix b/pkgs/applications/kde/yakuake.nix
index 6f9c8df300126..cb7f7070b24a1 100644
--- a/pkgs/applications/kde/yakuake.nix
+++ b/pkgs/applications/kde/yakuake.nix
@@ -24,7 +24,7 @@ mkDerivation {
   ];
 
   meta = {
-    homepage = https://yakuake.kde.org;
+    homepage = "https://yakuake.kde.org";
     description = "Quad-style terminal emulator for KDE";
     maintainers = with lib.maintainers; [ fridh ];
     license = lib.licenses.gpl2;
diff --git a/pkgs/applications/misc/1password/default.nix b/pkgs/applications/misc/1password/default.nix
index 1c409c232a82d..5f6118ef2fc91 100644
--- a/pkgs/applications/misc/1password/default.nix
+++ b/pkgs/applications/misc/1password/default.nix
@@ -35,8 +35,8 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description  = "1Password command-line tool";
-    homepage     = https://support.1password.com/command-line/;
-    downloadPage = https://app-updates.agilebits.com/product_history/CLI;
+    homepage     = "https://support.1password.com/command-line/";
+    downloadPage = "https://app-updates.agilebits.com/product_history/CLI";
     maintainers  = with maintainers; [ joelburget marsam ];
     license      = licenses.unfree;
     platforms    = [ "i686-linux" "x86_64-linux" "x86_64-darwin" ];
diff --git a/pkgs/applications/misc/abook/default.nix b/pkgs/applications/misc/abook/default.nix
index f87bd4c11ec47..4c03b197b4a03 100644
--- a/pkgs/applications/misc/abook/default.nix
+++ b/pkgs/applications/misc/abook/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses readline ];
 
   meta = {
-    homepage = http://abook.sourceforge.net/;
+    homepage = "http://abook.sourceforge.net/";
     description = "Text-based addressbook program designed to use with mutt mail client";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.edwtjo ];
diff --git a/pkgs/applications/misc/adobe-reader/default.nix b/pkgs/applications/misc/adobe-reader/default.nix
index d1e4856e0523e..b67e514ce54d1 100644
--- a/pkgs/applications/misc/adobe-reader/default.nix
+++ b/pkgs/applications/misc/adobe-reader/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Adobe Reader, a viewer for PDF documents";
-    homepage = http://www.adobe.com/products/reader;
+    homepage = "http://www.adobe.com/products/reader";
     license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/misc/airtame/default.nix b/pkgs/applications/misc/airtame/default.nix
index 465c72d73f5cc..043f1c86bd129 100644
--- a/pkgs/applications/misc/airtame/default.nix
+++ b/pkgs/applications/misc/airtame/default.nix
@@ -70,7 +70,7 @@ in stdenv.mkDerivation rec {
   dontPatchELF = true;
 
   meta = with stdenv.lib; {
-    homepage = https://airtame.com/download;
+    homepage = "https://airtame.com/download";
     description = "Wireless streaming client for Airtame devices";
     license = licenses.unfree;
     maintainers = with maintainers; [ thanegill ];
diff --git a/pkgs/applications/misc/albert/default.nix b/pkgs/applications/misc/albert/default.nix
index 6fc5f9514651d..5c43d717913bc 100644
--- a/pkgs/applications/misc/albert/default.nix
+++ b/pkgs/applications/misc/albert/default.nix
@@ -38,7 +38,7 @@ mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage    = https://albertlauncher.github.io/;
+    homepage    = "https://albertlauncher.github.io/";
     description = "Desktop agnostic launcher";
     license     = licenses.gpl3Plus;
     maintainers = with maintainers; [ ericsagnes synthetica ];
diff --git a/pkgs/applications/misc/almanah/default.nix b/pkgs/applications/misc/almanah/default.nix
index 06321d9d6218e..8b7234239a713 100644
--- a/pkgs/applications/misc/almanah/default.nix
+++ b/pkgs/applications/misc/almanah/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Small GTK application to allow to keep a diary of your life";
-    homepage = https://wiki.gnome.org/Apps/Almanah_Diary;
+    homepage = "https://wiki.gnome.org/Apps/Almanah_Diary";
     license = licenses.gpl3Plus;
     platforms = platforms.unix;
     maintainers = gnome3.maintainers;
diff --git a/pkgs/applications/misc/aminal/default.nix b/pkgs/applications/misc/aminal/default.nix
index 8c5aded5ed9ba..dff6b15494bba 100644
--- a/pkgs/applications/misc/aminal/default.nix
+++ b/pkgs/applications/misc/aminal/default.nix
@@ -61,7 +61,7 @@ buildGoPackage rec {
       - Built-in patched fonts for powerline
       - Retina display support
     '';
-    homepage = https://github.com/liamg/aminal;
+    homepage = "https://github.com/liamg/aminal";
     license = licenses.gpl3;
     maintainers = with maintainers; [ kalbasit ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/misc/antfs-cli/default.nix b/pkgs/applications/misc/antfs-cli/default.nix
index 8108b9e4ddb4c..49da252b6c0d1 100644
--- a/pkgs/applications/misc/antfs-cli/default.nix
+++ b/pkgs/applications/misc/antfs-cli/default.nix
@@ -5,7 +5,7 @@ python3Packages.buildPythonApplication {
   version = "unstable-2017-02-11";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/Tigge/antfs-cli;
+    homepage = "https://github.com/Tigge/antfs-cli";
     description = "Extracts FIT files from ANT-FS based sport watches";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/appeditor/default.nix b/pkgs/applications/misc/appeditor/default.nix
index cda75ac4c0504..d5d37ae27c950 100644
--- a/pkgs/applications/misc/appeditor/default.nix
+++ b/pkgs/applications/misc/appeditor/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Edit the Pantheon desktop application menu";
-    homepage = https://github.com/donadigo/appeditor;
+    homepage = "https://github.com/donadigo/appeditor";
     maintainers = with maintainers; [ kjuvi ] ++ pantheon.maintainers;
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/misc/apvlv/default.nix b/pkgs/applications/misc/apvlv/default.nix
index b5af1af91f36c..48efafa74fcd7 100644
--- a/pkgs/applications/misc/apvlv/default.nix
+++ b/pkgs/applications/misc/apvlv/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://naihe2010.github.io/apvlv/;
+    homepage = "http://naihe2010.github.io/apvlv/";
     description = "PDF viewer with Vim-like behaviour";
     longDescription = ''
       apvlv is a PDF/DJVU/UMD/TXT Viewer Under Linux/WIN32
diff --git a/pkgs/applications/misc/artha/default.nix b/pkgs/applications/misc/artha/default.nix
index b03d2aa208b55..648a2cfd99459 100644
--- a/pkgs/applications/misc/artha/default.nix
+++ b/pkgs/applications/misc/artha/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An offline thesaurus based on WordNet";
-    homepage = http://artha.sourceforge.net;
+    homepage = "http://artha.sourceforge.net";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/asciiquarium/default.nix b/pkgs/applications/misc/asciiquarium/default.nix
index 0e524ede0912e..592c0938ffbd4 100644
--- a/pkgs/applications/misc/asciiquarium/default.nix
+++ b/pkgs/applications/misc/asciiquarium/default.nix
@@ -22,7 +22,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Enjoy the mysteries of the sea from the safety of your own terminal!";
-    homepage = https://robobunny.com/projects/asciiquarium/html/;
+    homepage = "https://robobunny.com/projects/asciiquarium/html/";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = [ maintainers.utdemir ];
diff --git a/pkgs/applications/misc/audio/sox/default.nix b/pkgs/applications/misc/audio/sox/default.nix
index 622e7169faec6..32ea821b22d67 100644
--- a/pkgs/applications/misc/audio/sox/default.nix
+++ b/pkgs/applications/misc/audio/sox/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Sample Rate Converter for audio";
-    homepage = http://sox.sourceforge.net/;
+    homepage = "http://sox.sourceforge.net/";
     maintainers = [ lib.maintainers.marcweber ];
     license = if enableAMR then lib.licenses.unfree else lib.licenses.gpl2Plus;
     platforms = lib.platforms.linux ++ lib.platforms.darwin;
diff --git a/pkgs/applications/misc/audio/soxr/default.nix b/pkgs/applications/misc/audio/soxr/default.nix
index 20a754ba98ae6..59c7154fa7dea 100644
--- a/pkgs/applications/misc/audio/soxr/default.nix
+++ b/pkgs/applications/misc/audio/soxr/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An audio resampling library";
-    homepage = http://soxr.sourceforge.net;
+    homepage = "http://soxr.sourceforge.net";
     license = stdenv.lib.licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/audio/wavesurfer/default.nix b/pkgs/applications/misc/audio/wavesurfer/default.nix
index 0add5ed78cc53..0ca01c8d2aede 100644
--- a/pkgs/applications/misc/audio/wavesurfer/default.nix
+++ b/pkgs/applications/misc/audio/wavesurfer/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "wavesurfer-1.8.5";
 
   src = fetchurl {
-    url = https://www.speech.kth.se/wavesurfer/wavesurfer-1.8.5.tar.gz;
+    url = "https://www.speech.kth.se/wavesurfer/wavesurfer-1.8.5.tar.gz";
     sha256 = "1yx9s1j47cq0v40cwq2gn7bdizpw46l95ba4zl9z4gg31mfvm807";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = { 
     description = "Tool for recording, playing, editing, viewing and labeling of audio";
-    homepage = http://www.speech.kth.se/wavesurfer/;
+    homepage = "http://www.speech.kth.se/wavesurfer/";
     license = "BSD";
   };
 }
diff --git a/pkgs/applications/misc/audio/wavrsocvt/default.nix b/pkgs/applications/misc/audio/wavrsocvt/default.nix
index 09b75e27d46a1..ebb04a30ab866 100644
--- a/pkgs/applications/misc/audio/wavrsocvt/default.nix
+++ b/pkgs/applications/misc/audio/wavrsocvt/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
     supported sample rates in the standard NXT firmware).
     You can then upload these with e.g. nxt-python.
     '';
-    homepage = http://bricxcc.sourceforge.net/;
+    homepage = "http://bricxcc.sourceforge.net/";
     license = licenses.mpl11;
     maintainers = with maintainers; [ leenaars ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/misc/autospotting/default.nix b/pkgs/applications/misc/autospotting/default.nix
index b00686fb24f67..a33261e7a59de 100644
--- a/pkgs/applications/misc/autospotting/default.nix
+++ b/pkgs/applications/misc/autospotting/default.nix
@@ -20,7 +20,7 @@ buildGoPackage {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/AutoSpotting/AutoSpotting;
+    homepage = "https://github.com/AutoSpotting/AutoSpotting";
     description = "Automatically convert your existing AutoScaling groups to up to 90% cheaper spot instances with minimal configuration changes";
     license = licenses.free;
     maintainers = [ maintainers.costrouc ];
diff --git a/pkgs/applications/misc/avrdudess/default.nix b/pkgs/applications/misc/avrdudess/default.nix
index 165bee76b69b6..f4a56e4f92403 100644
--- a/pkgs/applications/misc/avrdudess/default.nix
+++ b/pkgs/applications/misc/avrdudess/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "GUI for AVRDUDE (AVR microcontroller programmer)";
-    homepage = https://github.com/zkemble/AVRDUDESS;
+    homepage = "https://github.com/zkemble/AVRDUDESS";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/misc/barrier/default.nix b/pkgs/applications/misc/barrier/default.nix
index 10e46176c6e6e..28b65d2b58b67 100644
--- a/pkgs/applications/misc/barrier/default.nix
+++ b/pkgs/applications/misc/barrier/default.nix
@@ -32,8 +32,8 @@ mkDerivation rec {
       Synergy was a commercialized reimplementation of the original
       CosmoSynergy written by Chris Schoeneman.
     '';
-    homepage = https://github.com/debauchee/barrier;
-    downloadPage = https://github.com/debauchee/barrier/releases;
+    homepage = "https://github.com/debauchee/barrier";
+    downloadPage = "https://github.com/debauchee/barrier/releases";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.phryneas ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/bashSnippets/default.nix b/pkgs/applications/misc/bashSnippets/default.nix
index 0976e7625bcf6..4a023849f3903 100644
--- a/pkgs/applications/misc/bashSnippets/default.nix
+++ b/pkgs/applications/misc/bashSnippets/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "A collection of small bash scripts for heavy terminal users";
-    homepage = https://github.com/alexanderepstein/Bash-Snippets;
+    homepage = "https://github.com/alexanderepstein/Bash-Snippets";
     license = licenses.mit;
     maintainers = with maintainers; [ infinisil ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/bb/default.nix b/pkgs/applications/misc/bb/default.nix
index 06df1df9f769a..fd7eb4990f061 100644
--- a/pkgs/applications/misc/bb/default.nix
+++ b/pkgs/applications/misc/bb/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage    = http://aa-project.sourceforge.net/bb;
+    homepage    = "http://aa-project.sourceforge.net/bb";
     description = "AA-lib demo";
     license     = licenses.gpl2;
     maintainers = [ maintainers.rnhmjoj ];
diff --git a/pkgs/applications/misc/bibletime/default.nix b/pkgs/applications/misc/bibletime/default.nix
index d0af940ac92a8..9489bfa0016ba 100644
--- a/pkgs/applications/misc/bibletime/default.nix
+++ b/pkgs/applications/misc/bibletime/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A Qt4 Bible study tool";
-    homepage = http://www.bibletime.info/;
+    homepage = "http://www.bibletime.info/";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.piotr ];
diff --git a/pkgs/applications/misc/bicon/default.nix b/pkgs/applications/misc/bicon/default.nix
index 22eb3e3d8594e..41b0d3c13a80e 100644
--- a/pkgs/applications/misc/bicon/default.nix
+++ b/pkgs/applications/misc/bicon/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A bidirectional console";
-    homepage =  https://github.com/behdad/bicon;
+    homepage =  "https://github.com/behdad/bicon";
     license = [ licenses.lgpl21 licenses.psfl licenses.bsd0 ];
     maintainers = [ maintainers.linarcx ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/birdtray/default.nix b/pkgs/applications/misc/birdtray/default.nix
index 39ecaa995d145..29522f75c2574 100644
--- a/pkgs/applications/misc/birdtray/default.nix
+++ b/pkgs/applications/misc/birdtray/default.nix
@@ -32,7 +32,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Mail system tray notification icon for Thunderbird";
-    homepage = https://github.com/gyunaev/birdtray;
+    homepage = "https://github.com/gyunaev/birdtray";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ Flakebi ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/bleachbit/default.nix b/pkgs/applications/misc/bleachbit/default.nix
index 4b2e1c6676125..0111f8519e7cc 100644
--- a/pkgs/applications/misc/bleachbit/default.nix
+++ b/pkgs/applications/misc/bleachbit/default.nix
@@ -54,7 +54,7 @@ pythonPackages.buildPythonApplication rec {
   strictDeps = false;
 
   meta = with stdenv.lib; {
-    homepage = http://bleachbit.sourceforge.net;
+    homepage = "http://bleachbit.sourceforge.net";
     description = "A program to clean your computer";
     longDescription = "BleachBit helps you easily clean your computer to free space and maintain privacy.";
     license = licenses.gpl3;
diff --git a/pkgs/applications/misc/buku/default.nix b/pkgs/applications/misc/buku/default.nix
index 8ca6d9ae0453d..f4018cff5f431 100644
--- a/pkgs/applications/misc/buku/default.nix
+++ b/pkgs/applications/misc/buku/default.nix
@@ -71,7 +71,7 @@ with python3.pkgs; buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Private cmdline bookmark manager";
-    homepage = https://github.com/jarun/Buku;
+    homepage = "https://github.com/jarun/Buku";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ matthiasbeyer infinisil ];
diff --git a/pkgs/applications/misc/candle/default.nix b/pkgs/applications/misc/candle/default.nix
index 77cabc409c744..a951046ce0151 100644
--- a/pkgs/applications/misc/candle/default.nix
+++ b/pkgs/applications/misc/candle/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GRBL controller application with G-Code visualizer written in Qt";
-    homepage = https://github.com/Denvi/Candle;
+    homepage = "https://github.com/Denvi/Candle";
     license = licenses.gpl3;
     maintainers = with maintainers; [ matti-kariluoma ];
   };
diff --git a/pkgs/applications/misc/cardpeek/default.nix b/pkgs/applications/misc/cardpeek/default.nix
index 40dbfea9801bc..83340f78dd482 100644
--- a/pkgs/applications/misc/cardpeek/default.nix
+++ b/pkgs/applications/misc/cardpeek/default.nix
@@ -20,7 +20,7 @@ in
     enableParallelBuilding = true;
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/L1L1/cardpeek;
+      homepage = "https://github.com/L1L1/cardpeek";
       description = "A tool to read the contents of ISO7816 smart cards";
       license = licenses.gpl3Plus;
       platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/misc/catclock/default.nix b/pkgs/applications/misc/catclock/default.nix
index 09c36f9eb2f11..6b4ab1f3a8bf2 100644
--- a/pkgs/applications/misc/catclock/default.nix
+++ b/pkgs/applications/misc/catclock/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
   buildInputs = [ xlibsWrapper motif ];
 
   meta = with stdenv.lib; {
-    homepage = http://codefromabove.com/2014/05/catclock/;
+    homepage = "http://codefromabove.com/2014/05/catclock/";
     license = with licenses; mit;
     maintainers = with maintainers; [ ramkromberg ];
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/misc/cbatticon/default.nix b/pkgs/applications/misc/cbatticon/default.nix
index ac2948c2d6ef4..e7664244db7bb 100644
--- a/pkgs/applications/misc/cbatticon/default.nix
+++ b/pkgs/applications/misc/cbatticon/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Lightweight and fast battery icon that sits in the system tray";
-    homepage = https://github.com/valr/cbatticon;
+    homepage = "https://github.com/valr/cbatticon";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.domenkozar ];
diff --git a/pkgs/applications/misc/cgminer/default.nix b/pkgs/applications/misc/cgminer/default.nix
index c05c7423d9a56..09236565d5984 100644
--- a/pkgs/applications/misc/cgminer/default.nix
+++ b/pkgs/applications/misc/cgminer/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation {
       monitoring, (over)clocking and fanspeed support for bitcoin and derivative
       coins. Do not use on multiple block chains at the same time!
     '';
-    homepage = https://github.com/ckolivas/cgminer;
+    homepage = "https://github.com/ckolivas/cgminer";
     license = licenses.gpl3;
     maintainers = [ maintainers.offline ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/cli-visualizer/default.nix b/pkgs/applications/misc/cli-visualizer/default.nix
index 4986661e2f638..112341dcd4f0a 100644
--- a/pkgs/applications/misc/cli-visualizer/default.nix
+++ b/pkgs/applications/misc/cli-visualizer/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://github.com/dpayne/cli-visualizer;
+    homepage = "https://github.com/dpayne/cli-visualizer";
     description = "CLI based audio visualizer";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/clight/clightd.nix b/pkgs/applications/misc/clight/clightd.nix
index f9c08d1f00a1a..bfa6f2ea8555b 100644
--- a/pkgs/applications/misc/clight/clightd.nix
+++ b/pkgs/applications/misc/clight/clightd.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Linux bus interface that changes screen brightness/temperature";
-    homepage = https://github.com/FedeDP/Clightd;
+    homepage = "https://github.com/FedeDP/Clightd";
     platforms = platforms.linux;
     license = licenses.gpl3;
     maintainers = with maintainers; [
diff --git a/pkgs/applications/misc/clight/default.nix b/pkgs/applications/misc/clight/default.nix
index a2e4525626985..ed8767419d4df 100644
--- a/pkgs/applications/misc/clight/default.nix
+++ b/pkgs/applications/misc/clight/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A C daemon that turns your webcam into a light sensor";
-    homepage = https://github.com/FedeDP/Clight;
+    homepage = "https://github.com/FedeDP/Clight";
     platforms = platforms.linux;
     license = licenses.gpl3;
     maintainers = with maintainers; [
diff --git a/pkgs/applications/misc/cmatrix/default.nix b/pkgs/applications/misc/cmatrix/default.nix
index 9f86ec94f184a..fa0e10f9eef82 100644
--- a/pkgs/applications/misc/cmatrix/default.nix
+++ b/pkgs/applications/misc/cmatrix/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
       CMatrix simulates the display from "The Matrix" and is based
       on the screensaver from the movie's website.
     '';
-    homepage = https://github.com/abishekvashok/cmatrix;
+    homepage = "https://github.com/abishekvashok/cmatrix";
     platforms = ncurses.meta.platforms;
     maintainers = [ maintainers.AndersonTorres ];
   };
diff --git a/pkgs/applications/misc/colort/default.nix b/pkgs/applications/misc/colort/default.nix
index 554c7d8c78bbf..1eda11890e795 100644
--- a/pkgs/applications/misc/colort/default.nix
+++ b/pkgs/applications/misc/colort/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A program for 'tinting' color values";
-    homepage = https://github.com/neeasade/colort;
+    homepage = "https://github.com/neeasade/colort";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = [ maintainers.neeasade ];
diff --git a/pkgs/applications/misc/confclerk/default.nix b/pkgs/applications/misc/confclerk/default.nix
index b07e0fb8c5208..bb1aacc2069b7 100644
--- a/pkgs/applications/misc/confclerk/default.nix
+++ b/pkgs/applications/misc/confclerk/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Offline conference schedule viewer";
-    homepage = http://www.toastfreeware.priv.at/confclerk;
+    homepage = "http://www.toastfreeware.priv.at/confclerk";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ ehmry ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/cool-retro-term/default.nix b/pkgs/applications/misc/cool-retro-term/default.nix
index c9dcc97d5cd14..739ad07adbf3a 100644
--- a/pkgs/applications/misc/cool-retro-term/default.nix
+++ b/pkgs/applications/misc/cool-retro-term/default.nix
@@ -38,7 +38,7 @@ mkDerivation rec {
       feel of the old cathode tube screens. It has been designed to be
       eye-candy, customizable, and reasonably lightweight.
     '';
-    homepage = https://github.com/Swordfish90/cool-retro-term;
+    homepage = "https://github.com/Swordfish90/cool-retro-term";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = with stdenv.lib.platforms; linux ++ darwin;
     maintainers = with stdenv.lib.maintainers; [ skeidel ];
diff --git a/pkgs/applications/misc/copyq/default.nix b/pkgs/applications/misc/copyq/default.nix
index 16be8e06b6865..081acb3acb611 100644
--- a/pkgs/applications/misc/copyq/default.nix
+++ b/pkgs/applications/misc/copyq/default.nix
@@ -21,7 +21,7 @@ mkDerivation rec {
   ] ++ lib.optional webkitSupport qtwebkit;
 
   meta = with lib; {
-    homepage    = https://hluk.github.io/CopyQ;
+    homepage    = "https://hluk.github.io/CopyQ";
     description = "Clipboard Manager with Advanced Features";
     license     = licenses.gpl3;
     maintainers = [ maintainers.willtim ];
diff --git a/pkgs/applications/misc/coursera-dl/default.nix b/pkgs/applications/misc/coursera-dl/default.nix
index c09457d2c656c..bbb7c53b61f65 100644
--- a/pkgs/applications/misc/coursera-dl/default.nix
+++ b/pkgs/applications/misc/coursera-dl/default.nix
@@ -38,7 +38,7 @@ in pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "CLI for downloading Coursera.org videos and naming them";
-    homepage = https://github.com/coursera-dl/coursera-dl;
+    homepage = "https://github.com/coursera-dl/coursera-dl";
     license = licenses.lgpl3Plus;
     maintainers = with maintainers; [ alexfmpe ];
     platforms = platforms.darwin ++ platforms.linux;
diff --git a/pkgs/applications/misc/cpp-ethereum/default.nix b/pkgs/applications/misc/cpp-ethereum/default.nix
index dae25f6b8176f..aed44d1213ce1 100644
--- a/pkgs/applications/misc/cpp-ethereum/default.nix
+++ b/pkgs/applications/misc/cpp-ethereum/default.nix
@@ -76,7 +76,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Ethereum C++ client";
-    homepage = https://github.com/ethereum/cpp-ethereum;
+    homepage = "https://github.com/ethereum/cpp-ethereum";
     license = licenses.gpl3;
     maintainers = with maintainers; [ artuuge ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/crumbs/default.nix b/pkgs/applications/misc/crumbs/default.nix
index 2d612c16fef3a..889c17e6988d7 100644
--- a/pkgs/applications/misc/crumbs/default.nix
+++ b/pkgs/applications/misc/crumbs/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib;
     { description = "Bookmarks for the command line";
-      homepage    = https://github.com/fasseg/crumbs;
+      homepage    = "https://github.com/fasseg/crumbs";
       license     = licenses.wtfpl;
       platforms   = platforms.all;
       maintainers = with maintainers; [ thesola10 ];
diff --git a/pkgs/applications/misc/ctodo/default.nix b/pkgs/applications/misc/ctodo/default.nix
index 72918a40733ba..602fe43081607 100644
--- a/pkgs/applications/misc/ctodo/default.nix
+++ b/pkgs/applications/misc/ctodo/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://ctodo.apakoh.dk/;
+    homepage = "http://ctodo.apakoh.dk/";
     description = "A simple ncurses-based task list manager";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/cura/default.nix b/pkgs/applications/misc/cura/default.nix
index d48efb1a1127c..4c4fe9b1abdd4 100644
--- a/pkgs/applications/misc/cura/default.nix
+++ b/pkgs/applications/misc/cura/default.nix
@@ -55,7 +55,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "3D printer / slicing GUI built on top of the Uranium framework";
-    homepage = https://github.com/Ultimaker/Cura;
+    homepage = "https://github.com/Ultimaker/Cura";
     license = licenses.lgpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ abbradar gebner ];
diff --git a/pkgs/applications/misc/cura/lulzbot/curaengine.nix b/pkgs/applications/misc/cura/lulzbot/curaengine.nix
index d7a9b63bbbf44..a5cfa937fd8dd 100644
--- a/pkgs/applications/misc/cura/lulzbot/curaengine.nix
+++ b/pkgs/applications/misc/cura/lulzbot/curaengine.nix
@@ -5,7 +5,7 @@ gcc8Stdenv.mkDerivation rec {
   version = "3.6.21";
 
   src = fetchgit {
-    url = https://code.alephobjects.com/source/curaengine-lulzbot.git;
+    url = "https://code.alephobjects.com/source/curaengine-lulzbot.git";
     rev = "ec6a1a0f0aa387ef97e5c106633cf8d7fb9cd00d";
     sha256 = "0wdkvg1hmqp1gaym804lw09x4ngf5ffasd861jhflpy7djbmkfn8";
   };
@@ -19,7 +19,7 @@ gcc8Stdenv.mkDerivation rec {
 
   meta = with gcc8Stdenv.lib; {
     description = "A powerful, fast and robust engine for processing 3D models into 3D printing instruction";
-    homepage = https://code.alephobjects.com/source/curaengine-lulzbot/;
+    homepage = "https://code.alephobjects.com/source/curaengine-lulzbot/";
     license = licenses.agpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ chaduffy ];
diff --git a/pkgs/applications/misc/cura/lulzbot/default.nix b/pkgs/applications/misc/cura/lulzbot/default.nix
index c67fcb74047da..229966561c6d5 100644
--- a/pkgs/applications/misc/cura/lulzbot/default.nix
+++ b/pkgs/applications/misc/cura/lulzbot/default.nix
@@ -4,7 +4,7 @@ let
   # admittedly, we're using (printer firmware) blobs when we could compile them ourselves.
   curaBinaryDataVersion = "3.6.21"; # Marlin v2.0.0.174 for Bio, v2.0.0.144 for others.
   curaBinaryData = fetchgit {
-    url = https://code.alephobjects.com/diffusion/CBD/cura-binary-data.git;
+    url = "https://code.alephobjects.com/diffusion/CBD/cura-binary-data.git";
     rev = "5c75d0f6c10d8b7a903e2072a48cd1f08059509e";
     sha256 = "1qdsj6rczwzdwzyr7nz7fnypbphckjrnwl8c9dr6izsxyzs465c4";
   };
@@ -30,7 +30,7 @@ mkDerivation rec {
   version = "3.6.21";
 
   src = fetchgit {
-    url = https://code.alephobjects.com/source/cura-lulzbot.git;
+    url = "https://code.alephobjects.com/source/cura-lulzbot.git";
     rev = "7faeb18604c83004846a02c60cb240708db0034f";
     sha256 = "10q38s8c8x6xkh1vns4p3iqa5y267vrjh5vq8h55mg1q5001scyq";
   };
@@ -74,7 +74,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "3D printer / slicing GUI built on top of the Uranium framework";
-    homepage = https://code.alephobjects.com/diffusion/CURA/;
+    homepage = "https://code.alephobjects.com/diffusion/CURA/";
     license = licenses.agpl3;  # a partial relicense to LGPL has happened, but not certain that all AGPL bits are expunged
     platforms = platforms.linux;
     maintainers = with maintainers; [ chaduffy ];
diff --git a/pkgs/applications/misc/cura/lulzbot/libarcus.nix b/pkgs/applications/misc/cura/lulzbot/libarcus.nix
index 733aa27da854d..5edaabbacb0f7 100644
--- a/pkgs/applications/misc/cura/lulzbot/libarcus.nix
+++ b/pkgs/applications/misc/cura/lulzbot/libarcus.nix
@@ -6,7 +6,7 @@ buildPythonPackage {
   format = "other";
 
   src = fetchgit {
-    url = https://code.alephobjects.com/source/arcus.git;
+    url = "https://code.alephobjects.com/source/arcus.git";
     rev = "aeda02d7727f45b657afb72cef203283fbf09325";
     sha256 = "1ak0d4k745sx7paic27was3s4987z9h3czscjs21hxbi6qy83g99";
   };
@@ -24,7 +24,7 @@ buildPythonPackage {
 
   meta = with stdenv.lib; {
     description = "Communication library between internal components for Ultimaker software";
-    homepage = https://code.alephobjects.com/source/arcus/;
+    homepage = "https://code.alephobjects.com/source/arcus/";
     license = licenses.lgpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ chaduffy ];
diff --git a/pkgs/applications/misc/cura/lulzbot/libsavitar.nix b/pkgs/applications/misc/cura/lulzbot/libsavitar.nix
index e6c277959e03f..e32117a103ee0 100644
--- a/pkgs/applications/misc/cura/lulzbot/libsavitar.nix
+++ b/pkgs/applications/misc/cura/lulzbot/libsavitar.nix
@@ -7,7 +7,7 @@ buildPythonPackage {
   format = "other";
 
   src = fetchgit {
-    url = https://code.alephobjects.com/source/savitar.git;
+    url = "https://code.alephobjects.com/source/savitar.git";
     rev = "ee8ada42c55f54727ce4d275c294ba426d3d8234";
     sha256 = "1wm5ii3cmni8dk3c65kw4wglpypkdsfpgd480d3hc1r5bqpq0d6j";
   };
@@ -25,7 +25,7 @@ buildPythonPackage {
 
   meta = with stdenv.lib; {
     description = "C++ implementation of 3mf loading with SIP python bindings";
-    homepage = https://github.com/Ultimaker/libSavitar;
+    homepage = "https://github.com/Ultimaker/libSavitar";
     license = licenses.lgpl3Plus;
     platforms = platforms.unix;
     maintainers = with maintainers; [ chaduffy ];
diff --git a/pkgs/applications/misc/cura/lulzbot/uranium.nix b/pkgs/applications/misc/cura/lulzbot/uranium.nix
index acffc741d5781..2ce0fab170ea0 100644
--- a/pkgs/applications/misc/cura/lulzbot/uranium.nix
+++ b/pkgs/applications/misc/cura/lulzbot/uranium.nix
@@ -8,7 +8,7 @@ buildPythonPackage {
   format = "other";
 
   src = fetchgit {
-    url = https://code.alephobjects.com/diffusion/U/uranium.git;
+    url = "https://code.alephobjects.com/diffusion/U/uranium.git";
     rev = "54d911edd2551c5875c554928896122835a0dd6c";
     sha256 = "04bym3vwikaxw8ab0mymv9sc9n8i7yw5kfsv99ic811g9lzz3j1i";
   };
@@ -29,7 +29,7 @@ buildPythonPackage {
 
   meta = with stdenv.lib; {
     description = "A Python framework for building Desktop applications";
-    homepage = https://code.alephobjects.com/diffusion/U/;
+    homepage = "https://code.alephobjects.com/diffusion/U/";
     license = licenses.lgpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ chaduffy ];
diff --git a/pkgs/applications/misc/cura/stable.nix b/pkgs/applications/misc/cura/stable.nix
index 1972042f805e6..1191be09f76ec 100644
--- a/pkgs/applications/misc/cura/stable.nix
+++ b/pkgs/applications/misc/cura/stable.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "3D printing host software";
-    homepage = https://github.com/daid/Cura;
+    homepage = "https://github.com/daid/Cura";
     license = licenses.agpl3;
     platforms = platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ the-kenny ];
diff --git a/pkgs/applications/misc/curabydagoma/default.nix b/pkgs/applications/misc/curabydagoma/default.nix
index a367efaaef383..821b88f9b20d5 100644
--- a/pkgs/applications/misc/curabydagoma/default.nix
+++ b/pkgs/applications/misc/curabydagoma/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Slicer for 3D printers built by Dagoma";
-    homepage = https://dagoma.fr/cura-by-dagoma.html;
+    homepage = "https://dagoma.fr/cura-by-dagoma.html";
     license = licenses.agpl3;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ tiramiseb ];
diff --git a/pkgs/applications/misc/curaengine/stable.nix b/pkgs/applications/misc/curaengine/stable.nix
index 41f110e9ee102..d353fff87efe2 100644
--- a/pkgs/applications/misc/curaengine/stable.nix
+++ b/pkgs/applications/misc/curaengine/stable.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Engine for processing 3D models into 3D printing instructions";
-    homepage = https://github.com/Ultimaker/CuraEngine;
+    homepage = "https://github.com/Ultimaker/CuraEngine";
     license = licenses.agpl3;
     platforms = platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ the-kenny ];
diff --git a/pkgs/applications/misc/dbvisualizer/default.nix b/pkgs/applications/misc/dbvisualizer/default.nix
index fbeb965df3805..7612c00393fa2 100644
--- a/pkgs/applications/misc/dbvisualizer/default.nix
+++ b/pkgs/applications/misc/dbvisualizer/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "dbvisualizer-9.5.7";
 
   src = fetchurl {
-    url = https://www.dbvis.com/product_download/dbvis-9.5.7/media/dbvis_unix_9_5_7.tar.gz;
+    url = "https://www.dbvis.com/product_download/dbvis-9.5.7/media/dbvis_unix_9_5_7.tar.gz";
     sha256 = "1xv4fw7cji2ffvv7z8vjl5lap512pj60s2ynihirrqld7pmklnyr";
   };
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "The universal database tool";
-    homepage = https://www.dbvis.com/;
+    homepage = "https://www.dbvis.com/";
     license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/misc/deco/default.nix b/pkgs/applications/misc/deco/default.nix
index a1fdabd8ccb12..ad8b56e830fad 100644
--- a/pkgs/applications/misc/deco/default.nix
+++ b/pkgs/applications/misc/deco/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ebzzry/deco;
+    homepage = "https://github.com/ebzzry/deco";
     description = "A simple root image setter";
     license = licenses.mit;
     maintainers = [ maintainers.ebzzry ];
diff --git a/pkgs/applications/misc/dfilemanager/default.nix b/pkgs/applications/misc/dfilemanager/default.nix
index 1bfb6bbfeaf3d..69c7f0dc17fb0 100644
--- a/pkgs/applications/misc/dfilemanager/default.nix
+++ b/pkgs/applications/misc/dfilemanager/default.nix
@@ -17,7 +17,7 @@ mkDerivation {
   cmakeFlags = [ "-DQT5BUILD=true" ];
 
   meta = {
-    homepage = http://dfilemanager.sourceforge.net/;
+    homepage = "http://dfilemanager.sourceforge.net/";
     description = "File manager written in Qt/C++";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/misc/diffpdf/default.nix b/pkgs/applications/misc/diffpdf/default.nix
index 957d3ee72bbb8..17dfd08f90b21 100644
--- a/pkgs/applications/misc/diffpdf/default.nix
+++ b/pkgs/applications/misc/diffpdf/default.nix
@@ -11,7 +11,7 @@ mkDerivation rec {
 
   patches = [
     (fetchpatch {
-      url = https://raw.githubusercontent.com/gentoo/gentoo/9b971631588ff46e7c2d501bc35cd0d9ce2d98e2/app-text/diffpdf/files/diffpdf-2.1.3-qt5.patch;
+      url = "https://raw.githubusercontent.com/gentoo/gentoo/9b971631588ff46e7c2d501bc35cd0d9ce2d98e2/app-text/diffpdf/files/diffpdf-2.1.3-qt5.patch";
       sha256 = "0sax8gcqcmzf74hmdr3rarqs4nsxmml9qmh6pqyjmgl3lypxhafg";
     })
     ./fix_path_poppler_qt5.patch
@@ -50,7 +50,7 @@ mkDerivation rec {
     '';
 
   meta = {
-    homepage = http://www.qtrac.eu/diffpdfc.html;
+    homepage = "http://www.qtrac.eu/diffpdfc.html";
     description = "Tool for diffing pdf files visually or textually";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ tstrobel ];
diff --git a/pkgs/applications/misc/ding/default.nix b/pkgs/applications/misc/ding/default.nix
index e76f95b6a50d3..374c4cf66487e 100644
--- a/pkgs/applications/misc/ding/default.nix
+++ b/pkgs/applications/misc/ding/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple and fast dictionary lookup tool";
-    homepage = https://www-user.tu-chemnitz.de/~fri/ding/;
+    homepage = "https://www-user.tu-chemnitz.de/~fri/ding/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux; # homepage says: unix-like except darwin
     maintainers = [ maintainers.exi ];
diff --git a/pkgs/applications/misc/direwolf/default.nix b/pkgs/applications/misc/direwolf/default.nix
index 8f7dbd2d2edab..038df41875f59 100644
--- a/pkgs/applications/misc/direwolf/default.nix
+++ b/pkgs/applications/misc/direwolf/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A Soundcard Packet TNC, APRS Digipeater, IGate, APRStt gateway";
-    homepage = https://github.com/wb2osz/direwolf/;
+    homepage = "https://github.com/wb2osz/direwolf/";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = [ maintainers.the-kenny ];
diff --git a/pkgs/applications/misc/dmensamenu/default.nix b/pkgs/applications/misc/dmensamenu/default.nix
index 1c3b413386740..cf02efdcece50 100644
--- a/pkgs/applications/misc/dmensamenu/default.nix
+++ b/pkgs/applications/misc/dmensamenu/default.nix
@@ -26,7 +26,7 @@ buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dotlambda/dmensamenu;
+    homepage = "https://github.com/dotlambda/dmensamenu";
     description = "Print German canteen menus using dmenu and OpenMensa";
     license = licenses.mit;
     maintainers = with maintainers; [ dotlambda ];
diff --git a/pkgs/applications/misc/dmenu/default.nix b/pkgs/applications/misc/dmenu/default.nix
index 8d13ac42e1fcc..e4d0c82c4176c 100644
--- a/pkgs/applications/misc/dmenu/default.nix
+++ b/pkgs/applications/misc/dmenu/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
       description = "A generic, highly customizable, and efficient menu for the X Window System";
-      homepage = https://tools.suckless.org/dmenu;
+      homepage = "https://tools.suckless.org/dmenu";
       license = licenses.mit;
       maintainers = with maintainers; [ pSub globin ];
       platforms = platforms.all;
diff --git a/pkgs/applications/misc/dockbarx/default.nix b/pkgs/applications/misc/dockbarx/default.nix
index 3888c4ce0a0db..97510bc3b4577 100644
--- a/pkgs/applications/misc/dockbarx/default.nix
+++ b/pkgs/applications/misc/dockbarx/default.nix
@@ -29,7 +29,7 @@ pythonPackages.buildPythonApplication rec {
     ++ [ keybinder ];
 
   meta = with stdenv.lib; {
-    homepage = https://launchpad.net/dockbar/;
+    homepage = "https://launchpad.net/dockbar/";
     description = "DockBarX is a lightweight taskbar / panel replacement for Linux which works as a stand-alone dock";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/doing/default.nix b/pkgs/applications/misc/doing/default.nix
index d72a5b848261d..48e45328f67ba 100644
--- a/pkgs/applications/misc/doing/default.nix
+++ b/pkgs/applications/misc/doing/default.nix
@@ -17,7 +17,7 @@ bundlerEnv {
       in a TaskPaper-formatted text file. It allows for multiple
       sections/categories and flexible output formatting.
     '';
-    homepage    = https://brettterpstra.com/projects/doing/;
+    homepage    = "https://brettterpstra.com/projects/doing/";
     license     = licenses.mit;
     maintainers = with maintainers; [ ktf nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/misc/doomseeker/default.nix b/pkgs/applications/misc/doomseeker/default.nix
index da36e89db1faa..999904a21d3c0 100644
--- a/pkgs/applications/misc/doomseeker/default.nix
+++ b/pkgs/applications/misc/doomseeker/default.nix
@@ -19,7 +19,7 @@ mkDerivation {
   hardeningDisable = stdenv.lib.optional stdenv.isDarwin "format";
 
   meta = with stdenv.lib; {
-    homepage = http://doomseeker.drdteam.org/;
+    homepage = "http://doomseeker.drdteam.org/";
     description = "Multiplayer server browser for many Doom source ports";
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/dotfiles/default.nix b/pkgs/applications/misc/dotfiles/default.nix
index 5150f13fb80ce..b515074fd4750 100644
--- a/pkgs/applications/misc/dotfiles/default.nix
+++ b/pkgs/applications/misc/dotfiles/default.nix
@@ -17,7 +17,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Easily manage your dotfiles";
-    homepage = https://github.com/jbernard/dotfiles;
+    homepage = "https://github.com/jbernard/dotfiles";
     license = licenses.isc;
   };
 }
diff --git a/pkgs/applications/misc/dozenal/default.nix b/pkgs/applications/misc/dozenal/default.nix
index 226bdea03013c..05d3ddb7cfbaa 100644
--- a/pkgs/applications/misc/dozenal/default.nix
+++ b/pkgs/applications/misc/dozenal/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
          Roman numerals.  Arbitrary ranks and symbols may be used.
          Defaults to dozenal Roman numerals.
     '';
-    homepage = https://github.com/dgoodmaniii/dozenal/;
+    homepage = "https://github.com/dgoodmaniii/dozenal/";
     maintainers = with stdenv.lib.maintainers; [ CharlesHD ];
     license = stdenv.lib.licenses.gpl3;
   };
diff --git a/pkgs/applications/misc/eaglemode/default.nix b/pkgs/applications/misc/eaglemode/default.nix
index 5d99cbaa988cd..052e290120d76 100644
--- a/pkgs/applications/misc/eaglemode/default.nix
+++ b/pkgs/applications/misc/eaglemode/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://eaglemode.sourceforge.net;
+    homepage = "http://eaglemode.sourceforge.net";
     description = "Zoomable User Interface";
     license = licenses.gpl3;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/misc/electron-cash/default.nix b/pkgs/applications/misc/electron-cash/default.nix
index f8405f446ad18..1616c082c0179 100644
--- a/pkgs/applications/misc/electron-cash/default.nix
+++ b/pkgs/applications/misc/electron-cash/default.nix
@@ -80,7 +80,7 @@ python3Packages.buildPythonApplication rec {
       and the ability to perform transactions without downloading a copy
       of the blockchain.
     '';
-    homepage = https://www.electroncash.org/;
+    homepage = "https://www.electroncash.org/";
     platforms = platforms.linux;
     maintainers = with maintainers; [ lassulus nyanloutre ];
     license = licenses.mit;
diff --git a/pkgs/applications/misc/electrum/dash.nix b/pkgs/applications/misc/electrum/dash.nix
index fc5192bb5e47b..33a8284744e50 100644
--- a/pkgs/applications/misc/electrum/dash.nix
+++ b/pkgs/applications/misc/electrum/dash.nix
@@ -39,7 +39,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Electrum DASH";
-    homepage = https://github.com/dashpay/electrum-dash;
+    homepage = "https://github.com/dashpay/electrum-dash";
     license = licenses.gpl3;
     maintainers = with maintainers; [ np ];
     knownVulnerabilities = [ "CVE-2018-1000022" ];
diff --git a/pkgs/applications/misc/electrum/default.nix b/pkgs/applications/misc/electrum/default.nix
index 924d4dc9e0b52..d1011548b2a69 100644
--- a/pkgs/applications/misc/electrum/default.nix
+++ b/pkgs/applications/misc/electrum/default.nix
@@ -143,7 +143,7 @@ python3Packages.buildPythonApplication {
       and the ability to perform transactions without downloading a copy
       of the blockchain.
     '';
-    homepage = https://electrum.org/;
+    homepage = "https://electrum.org/";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = with maintainers; [ ehmry joachifm np ];
diff --git a/pkgs/applications/misc/electrum/ltc.nix b/pkgs/applications/misc/electrum/ltc.nix
index 88f44c6cc8531..b7c655caaaf42 100644
--- a/pkgs/applications/misc/electrum/ltc.nix
+++ b/pkgs/applications/misc/electrum/ltc.nix
@@ -48,7 +48,7 @@ python3Packages.buildPythonApplication rec {
       about losing your litecoins to theft or hardware failure. No waiting, no
       lengthy blockchain downloads and no syncing to the network.
     '';
-    homepage = https://electrum-ltc.org/;
+    homepage = "https://electrum-ltc.org/";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/misc/elogind/default.nix b/pkgs/applications/misc/elogind/default.nix
index 84982b6b0197b..78dc54497dd92 100644
--- a/pkgs/applications/misc/elogind/default.nix
+++ b/pkgs/applications/misc/elogind/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = {
-    homepage = https://github.com/elogind/elogind;
+    homepage = "https://github.com/elogind/elogind";
     description = ''The systemd project's "logind", extracted to a standalone package'';
     platforms = platforms.linux; # probably more
     license = licenses.lgpl21Plus;
diff --git a/pkgs/applications/misc/emem/default.nix b/pkgs/applications/misc/emem/default.nix
index 62358d41cc53a..e0fcc221100e1 100644
--- a/pkgs/applications/misc/emem/default.nix
+++ b/pkgs/applications/misc/emem/default.nix
@@ -29,7 +29,7 @@ EOF
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ebzzry/emem;
+    homepage = "https://github.com/ebzzry/emem";
     description = "A trivial Markdown to HTML converter";
     license = licenses.epl10;
     maintainers = [ maintainers.ebzzry ];
diff --git a/pkgs/applications/misc/epdfview/default.nix b/pkgs/applications/misc/epdfview/default.nix
index de922bb39900f..7cbae2271aea9 100644
--- a/pkgs/applications/misc/epdfview/default.nix
+++ b/pkgs/applications/misc/epdfview/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
             ];
 
   meta = with stdenv.lib; {
-    homepage = https://packages.debian.org/wheezy/epdfview;
+    homepage = "https://packages.debian.org/wheezy/epdfview";
     description = "A lightweight PDF document viewer using Poppler and GTK";
     longDescription = ''
       ePDFView is a free lightweight PDF document viewer using Poppler and
diff --git a/pkgs/applications/misc/eterm/default.nix b/pkgs/applications/misc/eterm/default.nix
index 56cac7ca9185c..b51acd9fa7284 100644
--- a/pkgs/applications/misc/eterm/default.nix
+++ b/pkgs/applications/misc/eterm/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Terminal emulator";
-    homepage = http://www.eterm.org;
+    homepage = "http://www.eterm.org";
     license = licenses.bsd2;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/eureka-editor/default.nix b/pkgs/applications/misc/eureka-editor/default.nix
index e9d1317390ed9..d72aeb629c381 100644
--- a/pkgs/applications/misc/eureka-editor/default.nix
+++ b/pkgs/applications/misc/eureka-editor/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://eureka-editor.sourceforge.net;
+    homepage = "http://eureka-editor.sourceforge.net";
     description = "A map editor for the classic DOOM games, and a few related games such as Heretic and Hexen";
     license = licenses.gpl2;
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/evilvte/default.nix b/pkgs/applications/misc/evilvte/default.nix
index 984ade077a8a9..7a5284a527a67 100644
--- a/pkgs/applications/misc/evilvte/default.nix
+++ b/pkgs/applications/misc/evilvte/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
   version = "0.5.2-20140827";
 
   src = fetchgit {
-    url = https://github.com/caleb-/evilvte.git;
+    url = "https://github.com/caleb-/evilvte.git";
     rev = "8dfa41e26bc640dd8d8c7317ff7d04e3c01ded8a";
     sha256 = "70f1d4234d077121e2223a735d749d1b53f0b84393507b635b8a37c3716e94d3";
   };
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "VTE based, highly customizable terminal emulator";
-    homepage = http://www.calno.com/evilvte;
+    homepage = "http://www.calno.com/evilvte";
     license = licenses.gpl2;
     maintainers = [ maintainers.bodil ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/extract_url/default.nix b/pkgs/applications/misc/extract_url/default.nix
index f96d3f0f57c7b..9daaf7268c39c 100644
--- a/pkgs/applications/misc/extract_url/default.nix
+++ b/pkgs/applications/misc/extract_url/default.nix
@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = https://www.memoryhole.net/~kyle/extract_url/;
+    homepage = "https://www.memoryhole.net/~kyle/extract_url/";
     description = "Extracts URLs from MIME messages or plain text";
     license = licenses.bsd2;
     maintainers = [ maintainers.qyliss ];
diff --git a/pkgs/applications/misc/far2l/default.nix b/pkgs/applications/misc/far2l/default.nix
index 7c6573630a159..1a79554f0fe30 100644
--- a/pkgs/applications/misc/far2l/default.nix
+++ b/pkgs/applications/misc/far2l/default.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An orthodox file manager";
-    homepage = https://github.com/elfmz/far2l;
+    homepage = "https://github.com/elfmz/far2l";
     license = licenses.gpl2;
     maintainers = [ maintainers.volth ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/fbreader/default.nix b/pkgs/applications/misc/fbreader/default.nix
index 857ef9ac27bb6..187988077435c 100644
--- a/pkgs/applications/misc/fbreader/default.nix
+++ b/pkgs/applications/misc/fbreader/default.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An e-book reader for Linux";
-    homepage = http://www.fbreader.org/;
+    homepage = "http://www.fbreader.org/";
     license = licenses.gpl3;
     broken = stdenv.isDarwin  # untested, might work
           || uiType == "gtk"; # builds, but the result is unusable, hangs a lot
diff --git a/pkgs/applications/misc/fehlstart/default.nix b/pkgs/applications/misc/fehlstart/default.nix
index db78f2ec92043..cae637c2c4a48 100644
--- a/pkgs/applications/misc/fehlstart/default.nix
+++ b/pkgs/applications/misc/fehlstart/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Small desktop application launcher with reasonable memory footprint";
-    homepage = https://gitlab.com/fehlstart/fehlstart;
+    homepage = "https://gitlab.com/fehlstart/fehlstart";
     license = licenses.gpl3;
     maintainers = [ maintainers.mounium ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/fff/default.nix b/pkgs/applications/misc/fff/default.nix
index e87c86f1b4b31..1397f0a057da5 100644
--- a/pkgs/applications/misc/fff/default.nix
+++ b/pkgs/applications/misc/fff/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Fucking Fast File-Manager";
-    homepage = https://github.com/dylanaraps/fff;
+    homepage = "https://github.com/dylanaraps/fff";
     license = licenses.mit;
     maintainers = [ maintainers.tadeokondrak ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/filet/default.nix b/pkgs/applications/misc/filet/default.nix
index edee9ab33e9e1..ee4b05fa689f2 100644
--- a/pkgs/applications/misc/filet/default.nix
+++ b/pkgs/applications/misc/filet/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A fucking fucking fast file fucker (afffff)";
-    homepage = https://github.com/buffet/filet;
+    homepage = "https://github.com/buffet/filet";
     license = licenses.mpl20;
     platforms = platforms.all;
     maintainers = with maintainers; [ buffet ];
diff --git a/pkgs/applications/misc/firestarter/default.nix b/pkgs/applications/misc/firestarter/default.nix
index 82bcf5a4aa07b..05c535e62c0e3 100644
--- a/pkgs/applications/misc/firestarter/default.nix
+++ b/pkgs/applications/misc/firestarter/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://tu-dresden.de/zih/forschung/projekte/firestarter;
+    homepage = "https://tu-dresden.de/zih/forschung/projekte/firestarter";
     description = "Processor Stress Test Utility";
     platforms = platforms.linux;
     maintainers = with maintainers; [ astro ];
diff --git a/pkgs/applications/misc/flamerobin/default.nix b/pkgs/applications/misc/flamerobin/default.nix
index 06cf3c06ffa6e..2e389c753e2ed 100644
--- a/pkgs/applications/misc/flamerobin/default.nix
+++ b/pkgs/applications/misc/flamerobin/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Database administration tool for Firebird RDBMS";
-    homepage = https://github.com/mariuz/flamerobin;
+    homepage = "https://github.com/mariuz/flamerobin";
     license = licenses.bsdOriginal;
     maintainers = with maintainers; [ uralbash ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/fme/default.nix b/pkgs/applications/misc/fme/default.nix
index 2ca059820ef0f..cf93729eddd33 100644
--- a/pkgs/applications/misc/fme/default.nix
+++ b/pkgs/applications/misc/fme/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec{
       Its user-friendly interface will help you to edit, delete, move (Drag and Drop)
       a row, a submenu, etc very easily.
     '';
-    homepage = https://github.com/rdehouss/fme/;
+    homepage = "https://github.com/rdehouss/fme/";
     license = licenses.gpl2;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/font-manager/default.nix b/pkgs/applications/misc/font-manager/default.nix
index afa0a06d33fc5..008e59eebee6f 100644
--- a/pkgs/applications/misc/font-manager/default.nix
+++ b/pkgs/applications/misc/font-manager/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://fontmanager.github.io/;
+    homepage = "https://fontmanager.github.io/";
     description = "Simple font management for GTK desktop environments";
     longDescription = ''
       Font Manager is intended to provide a way for average users to
diff --git a/pkgs/applications/misc/freemind/default.nix b/pkgs/applications/misc/freemind/default.nix
index aee3937689b3a..5774320220a16 100644
--- a/pkgs/applications/misc/freemind/default.nix
+++ b/pkgs/applications/misc/freemind/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Mind-mapping software";
-    homepage = http://freemind.sourceforge.net/wiki/index.php/Main_Page;
+    homepage = "http://freemind.sourceforge.net/wiki/index.php/Main_Page";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/misc/fsv/default.nix b/pkgs/applications/misc/fsv/default.nix
index bbc78efe5cd20..8b6898958d3cf 100644
--- a/pkgs/applications/misc/fsv/default.nix
+++ b/pkgs/applications/misc/fsv/default.nix
@@ -44,7 +44,7 @@ in stdenv.mkDerivation rec {
       hard drive, or any arbitrarily large collection of files, limited only
       by the host computer's memory and graphics hardware.
     '';
-    homepage    = https://github.com/mcuelenaere/fsv;
+    homepage    = "https://github.com/mcuelenaere/fsv";
     license     = licenses.lgpl2;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ rnhmjoj ];
diff --git a/pkgs/applications/misc/gImageReader/default.nix b/pkgs/applications/misc/gImageReader/default.nix
index 67d4bd65a9f9f..2884fca623983 100644
--- a/pkgs/applications/misc/gImageReader/default.nix
+++ b/pkgs/applications/misc/gImageReader/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A simple Gtk/Qt front-end to tesseract-ocr";
-    homepage = https://github.com/manisandro/gImageReader;
+    homepage = "https://github.com/manisandro/gImageReader";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [teto];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/galculator/default.nix b/pkgs/applications/misc/galculator/default.nix
index ecf8ae9da8d4b..1964ba6aaf73a 100644
--- a/pkgs/applications/misc/galculator/default.nix
+++ b/pkgs/applications/misc/galculator/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
       - Binary arithmetic of configurable bit length and signedness
       - Quad-precision floating point arithmetic, and 112-bit binary arithmetic
     '';
-    homepage = http://galculator.sourceforge.net/;
+    homepage = "http://galculator.sourceforge.net/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/gammu/default.nix b/pkgs/applications/misc/gammu/default.nix
index fb6902634da8b..ff3408eb8dd29 100644
--- a/pkgs/applications/misc/gammu/default.nix
+++ b/pkgs/applications/misc/gammu/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = https://wammu.eu/gammu/;
+    homepage = "https://wammu.eu/gammu/";
     description = "Command line utility and library to control mobile phones";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/ganttproject-bin/default.nix b/pkgs/applications/misc/ganttproject-bin/default.nix
index 96d3d34046e1b..2e8478f41d3d1 100644
--- a/pkgs/applications/misc/ganttproject-bin/default.nix
+++ b/pkgs/applications/misc/ganttproject-bin/default.nix
@@ -49,8 +49,8 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Project scheduling and management";
-    homepage = https://www.ganttproject.biz/;
-    downloadPage = https://www.ganttproject.biz/download;
+    homepage = "https://www.ganttproject.biz/";
+    downloadPage = "https://www.ganttproject.biz/download";
     # GanttProject itself is GPL3+. All bundled libraries are declared
     # ‘GPL3-compatible’. See ${downloadPage} for detailed information.
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/misc/garmin-plugin/default.nix b/pkgs/applications/misc/garmin-plugin/default.nix
index b97b079ab663d..ba6868b62f6f6 100644
--- a/pkgs/applications/misc/garmin-plugin/default.nix
+++ b/pkgs/applications/misc/garmin-plugin/default.nix
@@ -2,7 +2,7 @@
 stdenv.mkDerivation {
   name = "garmin-plugin-0.3.26";
   src = fetchurl {
-    url = https://github.com/adiesner/GarminPlugin/archive/V0.3.26.tar.gz;
+    url = "https://github.com/adiesner/GarminPlugin/archive/V0.3.26.tar.gz";
     sha256 = "15gads1fj4sj970m5960dgnhys41ksi4cm53ldkf67wn8dc9i4k0";
   };
   sourceRoot = "GarminPlugin-0.3.26/src";
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
     cp npGarminPlugin.so $out/lib/mozilla/plugins
   '';
   meta = {
-    homepage = http://www.andreas-diesner.de/garminplugin;
+    homepage = "http://www.andreas-diesner.de/garminplugin";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.ocharles ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/gcal/default.nix b/pkgs/applications/misc/gcal/default.nix
index 713000d3f69af..24906b11dd597 100644
--- a/pkgs/applications/misc/gcal/default.nix
+++ b/pkgs/applications/misc/gcal/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
       hybrid and proleptic Julian and Gregorian calendar sheets.  It
       also displays holiday lists for many countries around the globe.
     '';
-    homepage = https://www.gnu.org/software/gcal/;
+    homepage = "https://www.gnu.org/software/gcal/";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.romildo ];
diff --git a/pkgs/applications/misc/gcalcli/default.nix b/pkgs/applications/misc/gcalcli/default.nix
index 8381f182e5d33..b8b1193058bc7 100644
--- a/pkgs/applications/misc/gcalcli/default.nix
+++ b/pkgs/applications/misc/gcalcli/default.nix
@@ -30,7 +30,7 @@ buildPythonApplication rec {
 
   meta = with lib; {
     description = "CLI for Google Calendar";
-    homepage = https://github.com/insanum/gcalcli;
+    homepage = "https://github.com/insanum/gcalcli";
     license = licenses.mit;
     maintainers = with maintainers; [ nocoolnametom ];
     inherit version;
diff --git a/pkgs/applications/misc/get_iplayer/default.nix b/pkgs/applications/misc/get_iplayer/default.nix
index 5db328072e436..9c05e98472027 100644
--- a/pkgs/applications/misc/get_iplayer/default.nix
+++ b/pkgs/applications/misc/get_iplayer/default.nix
@@ -33,7 +33,7 @@ perlPackages.buildPerlPackage rec {
   meta = {
     description = "Downloads TV and radio from BBC iPlayer";
     license = licenses.gpl3Plus;
-    homepage = https://squarepenguin.co.uk/;
+    homepage = "https://squarepenguin.co.uk/";
     platforms = platforms.all;
     maintainers = with maintainers; [ rika ];
   };
diff --git a/pkgs/applications/misc/getxbook/default.nix b/pkgs/applications/misc/getxbook/default.nix
index aa901a7ba513a..8ac0b000c46d1 100644
--- a/pkgs/applications/misc/getxbook/default.nix
+++ b/pkgs/applications/misc/getxbook/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A collection of tools to download books from Google Books";
-    homepage    = https://njw.me.uk/getxbook/;
+    homepage    = "https://njw.me.uk/getxbook/";
     license     = licenses.isc;
     maintainers = with maintainers; [ obadz ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/misc/gkrellm/default.nix b/pkgs/applications/misc/gkrellm/default.nix
index f44cdd0bad725..bc7c66ee5310d 100644
--- a/pkgs/applications/misc/gkrellm/default.nix
+++ b/pkgs/applications/misc/gkrellm/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
       manager, Gtk, or any other theme.
     '';
 
-    homepage = http://gkrellm.srcbox.net;
+    homepage = "http://gkrellm.srcbox.net";
     license = licenses.gpl3Plus;
     maintainers = [ ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/gksu/default.nix b/pkgs/applications/misc/gksu/default.nix
index 4a806cbb183d6..bfa5044776168 100644
--- a/pkgs/applications/misc/gksu/default.nix
+++ b/pkgs/applications/misc/gksu/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
       programs that need to ask a user's password to run another program
       as another user.
     '';
-    homepage = https://www.nongnu.org/gksu/;
+    homepage = "https://www.nongnu.org/gksu/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.romildo ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/glava/default.nix b/pkgs/applications/misc/glava/default.nix
index 519df42c789af..88991bb40a192 100644
--- a/pkgs/applications/misc/glava/default.nix
+++ b/pkgs/applications/misc/glava/default.nix
@@ -82,7 +82,7 @@ in
       description = ''
         OpenGL audio spectrum visualizer
       '';
-      homepage = https://github.com/wacossusca34/glava;
+      homepage = "https://github.com/wacossusca34/glava";
       platforms = platforms.linux;
       license = licenses.gpl3;
       maintainers = with maintainers; [
diff --git a/pkgs/applications/misc/glom/default.nix b/pkgs/applications/misc/glom/default.nix
index b8f13d01424cd..1f70111c92efd 100644
--- a/pkgs/applications/misc/glom/default.nix
+++ b/pkgs/applications/misc/glom/default.nix
@@ -125,7 +125,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An easy-to-use database designer and user interface";
-    homepage = http://www.glom.org/;
+    homepage = "http://www.glom.org/";
     license = [ licenses.lgpl2 licenses.gpl2 ];
     maintainers = gnome3.maintainers;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/gmrun/default.nix b/pkgs/applications/misc/gmrun/default.nix
index 50dda9510b918..eaee8fb5fb370 100644
--- a/pkgs/applications/misc/gmrun/default.nix
+++ b/pkgs/applications/misc/gmrun/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
       Also, supports CTRL-R / CTRL-S / "!" for searching through history.
       Running commands in a terminal with CTRL-Enter. URL handlers.
     '';
-    homepage = https://sourceforge.net/projects/gmrun/;
+    homepage = "https://sourceforge.net/projects/gmrun/";
     license = "GPL";
     maintainers = [];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/misc/gmtp/default.nix b/pkgs/applications/misc/gmtp/default.nix
index db2193dbd3d7c..5ed69e7bc69ee 100644
--- a/pkgs/applications/misc/gmtp/default.nix
+++ b/pkgs/applications/misc/gmtp/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A simple MP3 and Media player client for UNIX and UNIX like systems.";
-    homepage = https://gmtp.sourceforge.io;
+    homepage = "https://gmtp.sourceforge.io";
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ ];
     license = stdenv.lib.licenses.bsd3;
diff --git a/pkgs/applications/misc/gnome-multi-writer/default.nix b/pkgs/applications/misc/gnome-multi-writer/default.nix
index 11bfbaaacd078..7975ee1f299f1 100644
--- a/pkgs/applications/misc/gnome-multi-writer/default.nix
+++ b/pkgs/applications/misc/gnome-multi-writer/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Tool for writing an ISO file to multiple USB devices at once";
-    homepage = https://wiki.gnome.org/Apps/MultiWriter;
+    homepage = "https://wiki.gnome.org/Apps/MultiWriter";
     license = licenses.gpl2Plus;
     maintainers = gnome3.maintainers;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/gnome-recipes/default.nix b/pkgs/applications/misc/gnome-recipes/default.nix
index 01f5af339ff08..da39a440f3352 100644
--- a/pkgs/applications/misc/gnome-recipes/default.nix
+++ b/pkgs/applications/misc/gnome-recipes/default.nix
@@ -71,7 +71,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Recipe management application for GNOME";
-    homepage = https://wiki.gnome.org/Apps/Recipes;
+    homepage = "https://wiki.gnome.org/Apps/Recipes";
     maintainers = gnome3.maintainers;
     license = licenses.gpl3;
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/googleearth/default.nix b/pkgs/applications/misc/googleearth/default.nix
index 181273752ea87..dff69130c18ac 100644
--- a/pkgs/applications/misc/googleearth/default.nix
+++ b/pkgs/applications/misc/googleearth/default.nix
@@ -99,7 +99,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A world sphere viewer";
-    homepage = http://earth.google.com;
+    homepage = "http://earth.google.com";
     license = licenses.unfree;
     maintainers = with maintainers; [ markus1189 ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/gosmore/default.nix b/pkgs/applications/misc/gosmore/default.nix
index 41cdf267f5de4..350cb56695f93 100644
--- a/pkgs/applications/misc/gosmore/default.nix
+++ b/pkgs/applications/misc/gosmore/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
   # so we explicitly disable them to avoid breaking the hash
   # especially as the externals appear to be unused
   src = fetchsvn {
-    url = http://svn.openstreetmap.org/applications/rendering/gosmore;
+    url = "http://svn.openstreetmap.org/applications/rendering/gosmore";
     sha256 = "0qsckpqx7i7f8gkqhkzdamr65250afk1rpnh3nbman35kdv3dsxi";
     rev = version;
     ignoreExternals = true;
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
       
   meta = with stdenv.lib; {
     description = "Open Street Map viewer";
-    homepage = https://sourceforge.net/projects/gosmore/;
+    homepage = "https://sourceforge.net/projects/gosmore/";
     maintainers = with maintainers; [
       raskin
     ];
diff --git a/pkgs/applications/misc/gpa/default.nix b/pkgs/applications/misc/gpa/default.nix
index a488901441271..cd7b724a1d78f 100644
--- a/pkgs/applications/misc/gpa/default.nix
+++ b/pkgs/applications/misc/gpa/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Graphical user interface for the GnuPG";
-    homepage = https://www.gnupg.org/related_software/gpa/;
+    homepage = "https://www.gnupg.org/related_software/gpa/";
     license = licenses.gpl3Plus;
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/misc/gpg-mdp/default.nix b/pkgs/applications/misc/gpg-mdp/default.nix
index 9954ff660adcd..cf3d6fe9e93e9 100644
--- a/pkgs/applications/misc/gpg-mdp/default.nix
+++ b/pkgs/applications/misc/gpg-mdp/default.nix
@@ -6,7 +6,7 @@ in stdenv.mkDerivation {
   pname = "gpg-mdp";
   inherit version;
   meta = {
-    homepage = https://tamentis.com/projects/mdp/;
+    homepage = "https://tamentis.com/projects/mdp/";
     license = [stdenv.lib.licenses.isc];
     description = "Manage your passwords with GnuPG and a text editor";
   };
diff --git a/pkgs/applications/misc/gphoto2/default.nix b/pkgs/applications/misc/gphoto2/default.nix
index d06970e8d07cb..1235a41ffc7bf 100644
--- a/pkgs/applications/misc/gphoto2/default.nix
+++ b/pkgs/applications/misc/gphoto2/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
       digital cameras. Through libgphoto2, it supports PTP, MTP, and much more..
 
     '';
-    homepage = http://www.gphoto.org/;
+    homepage = "http://www.gphoto.org/";
     license = licenses.gpl2Plus;
     platforms = platforms.unix;
     maintainers = [ maintainers.jcumming ];
diff --git a/pkgs/applications/misc/gphoto2/gphotofs.nix b/pkgs/applications/misc/gphoto2/gphotofs.nix
index c1c2a44bd7f29..668706ca38959 100644
--- a/pkgs/applications/misc/gphoto2/gphotofs.nix
+++ b/pkgs/applications/misc/gphoto2/gphotofs.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Fuse FS to mount a digital camera";
-    homepage = http://www.gphoto.org/;
+    homepage = "http://www.gphoto.org/";
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
     license = with licenses; [ lgpl2 gpl2 ];
diff --git a/pkgs/applications/misc/gpsbabel/default.nix b/pkgs/applications/misc/gpsbabel/default.nix
index 9d244ca18f323..ef4c732ef5217 100644
--- a/pkgs/applications/misc/gpsbabel/default.nix
+++ b/pkgs/applications/misc/gpsbabel/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     (fetchpatch {
-      url = https://sources.debian.net/data/main/g/gpsbabel/1.5.3-2/debian/patches/use_minizip;
+      url = "https://sources.debian.net/data/main/g/gpsbabel/1.5.3-2/debian/patches/use_minizip";
       sha256 = "03fpsmlx1wc48d1j405zkzp8j64hcp0z72islf4mk1immql3ibcr";
     })
   ];
@@ -69,7 +69,7 @@ stdenv.mkDerivation rec {
       process data that may (or may not be) placed on a map, such as
       waypoints, tracks, and routes.
     '';
-    homepage = http://www.gpsbabel.org/;
+    homepage = "http://www.gpsbabel.org/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.rycee ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/gpx-viewer/default.nix b/pkgs/applications/misc/gpx-viewer/default.nix
index 04ab062c1a1b1..64296688c93e9 100644
--- a/pkgs/applications/misc/gpx-viewer/default.nix
+++ b/pkgs/applications/misc/gpx-viewer/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ gdl libchamplain gnome3.adwaita-icon-theme libxml2 ];
 
   meta = with stdenv.lib; {
-    homepage = https://blog.sarine.nl/tag/gpxviewer/;
+    homepage = "https://blog.sarine.nl/tag/gpxviewer/";
     description = "Simple tool to visualize tracks and waypoints stored in a gpx file";
     platforms = with platforms; linux;
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/misc/gpx/default.nix b/pkgs/applications/misc/gpx/default.nix
index a341a212a37f6..dcf022fc44531 100644
--- a/pkgs/applications/misc/gpx/default.nix
+++ b/pkgs/applications/misc/gpx/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Gcode to x3g conversion postprocessor";
-    homepage = https://github.com/markwal/GPX/;
+    homepage = "https://github.com/markwal/GPX/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.leo60228 ];
diff --git a/pkgs/applications/misc/gramps/default.nix b/pkgs/applications/misc/gramps/default.nix
index 84be50ccb5e50..e5a2b87f16ef9 100644
--- a/pkgs/applications/misc/gramps/default.nix
+++ b/pkgs/applications/misc/gramps/default.nix
@@ -58,7 +58,7 @@ in buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Genealogy software";
-    homepage = https://gramps-project.org;
+    homepage = "https://gramps-project.org";
     license = licenses.gpl2;
     maintainers = with maintainers; [ joncojonathan ];
   };
diff --git a/pkgs/applications/misc/green-pdfviewer/default.nix b/pkgs/applications/misc/green-pdfviewer/default.nix
index d86db7adb9d02..4e888f4faac89 100644
--- a/pkgs/applications/misc/green-pdfviewer/default.nix
+++ b/pkgs/applications/misc/green-pdfviewer/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/schandinat/green/;
+    homepage = "https://github.com/schandinat/green/";
     description = "Viewer for PDF files, uses SDL and libpoppler";
 
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/gremlin-console/default.nix b/pkgs/applications/misc/gremlin-console/default.nix
index 87e636b9c030f..a4932943fa236 100644
--- a/pkgs/applications/misc/gremlin-console/default.nix
+++ b/pkgs/applications/misc/gremlin-console/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://tinkerpop.apache.org/;
+    homepage = "https://tinkerpop.apache.org/";
     description = "Console of the Apache TinkerPop graph computing framework";
     license = licenses.asl20;
     maintainers = [ maintainers.lewo ];
diff --git a/pkgs/applications/misc/grip/default.nix b/pkgs/applications/misc/grip/default.nix
index b70901bac8105..e64ae08037a3b 100644
--- a/pkgs/applications/misc/grip/default.nix
+++ b/pkgs/applications/misc/grip/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "GTK-based audio CD player/ripper";
-    homepage = http://nostatic.org/grip;
+    homepage = "http://nostatic.org/grip";
     license = stdenv.lib.licenses.gpl2;
 
     maintainers = with stdenv.lib.maintainers; [ marcweber peti ];
diff --git a/pkgs/applications/misc/gsctl/default.nix b/pkgs/applications/misc/gsctl/default.nix
index b84053b94adc1..e80f43f5bd9ba 100644
--- a/pkgs/applications/misc/gsctl/default.nix
+++ b/pkgs/applications/misc/gsctl/default.nix
@@ -15,7 +15,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "The Giant Swarm command line interface";
-    homepage = https://github.com/giantswarm/gsctl;
+    homepage = "https://github.com/giantswarm/gsctl";
     license = licenses.asl20;
     maintainers = with maintainers; [ joesalisbury ];
   };
diff --git a/pkgs/applications/misc/gsimplecal/default.nix b/pkgs/applications/misc/gsimplecal/default.nix
index ea78331e47640..e83e349b21c1e 100644
--- a/pkgs/applications/misc/gsimplecal/default.nix
+++ b/pkgs/applications/misc/gsimplecal/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   preConfigure = "./autogen.sh";
 
   meta = {
-    homepage = http://dmedvinsky.github.io/gsimplecal/;
+    homepage = "http://dmedvinsky.github.io/gsimplecal/";
     description = "Lightweight calendar application written in C++ using GTK";
     longDescription = ''
       gsimplecal was intentionally made for use with tint2 panel in the
diff --git a/pkgs/applications/misc/gtk2fontsel/default.nix b/pkgs/applications/misc/gtk2fontsel/default.nix
index 9b8d6a7f976b5..21ad7d757a19f 100644
--- a/pkgs/applications/misc/gtk2fontsel/default.nix
+++ b/pkgs/applications/misc/gtk2fontsel/default.nix
@@ -20,8 +20,8 @@ stdenv.mkDerivation rec {
       Font selection tool similar to xfontsel implemented using GTK 2.
       Trivial, but useful nonetheless.
     '';
-    homepage = http://gtk2fontsel.sourceforge.net/;
-    downloadPage = https://sourceforge.net/projects/gtk2fontsel/;
+    homepage = "http://gtk2fontsel.sourceforge.net/";
+    downloadPage = "https://sourceforge.net/projects/gtk2fontsel/";
     license = licenses.gpl2;
     maintainers = [ maintainers.prikhi ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/gv/default.nix b/pkgs/applications/misc/gv/default.nix
index f94f8f5dd707b..accf62c0c469d 100644
--- a/pkgs/applications/misc/gv/default.nix
+++ b/pkgs/applications/misc/gv/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation {
   doCheck = true;
 
   meta = {
-    homepage = https://www.gnu.org/software/gv/;
+    homepage = "https://www.gnu.org/software/gv/";
     description = "PostScript/PDF document viewer";
 
     longDescription = ''
diff --git a/pkgs/applications/misc/gxneur/default.nix b/pkgs/applications/misc/gxneur/default.nix
index c44523a8b751e..adabe22c6b64f 100644
--- a/pkgs/applications/misc/gxneur/default.nix
+++ b/pkgs/applications/misc/gxneur/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "gxneur-0.20.0";
 
   src = fetchurl {
-    url = https://github.com/AndrewCrewKuznetsov/xneur-devel/raw/f66723feb272c68f7c22a8bf0dbcafa5e3a8a5ee/dists/0.20.0/gxneur_0.20.0.orig.tar.gz;
+    url = "https://github.com/AndrewCrewKuznetsov/xneur-devel/raw/f66723feb272c68f7c22a8bf0dbcafa5e3a8a5ee/dists/0.20.0/gxneur_0.20.0.orig.tar.gz";
     sha256 = "0avmhdcj0hpr55fc0iih8fjykmdhn34c8mwdnqvl8jh4nhxxchxr";
   };
 
diff --git a/pkgs/applications/misc/haxor-news/default.nix b/pkgs/applications/misc/haxor-news/default.nix
index 7353078600d1a..98f84ca68b8e3 100644
--- a/pkgs/applications/misc/haxor-news/default.nix
+++ b/pkgs/applications/misc/haxor-news/default.nix
@@ -35,7 +35,7 @@ buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/donnemartin/haxor-news;
+    homepage = "https://github.com/donnemartin/haxor-news";
     description = "Browse Hacker News like a haxor";
     license = licenses.asl20;
     maintainers = with maintainers; [ matthiasbeyer ];
diff --git a/pkgs/applications/misc/hdate/default.nix b/pkgs/applications/misc/hdate/default.nix
index 989dfb886ec34..c97a67c0bd38f 100644
--- a/pkgs/applications/misc/hdate/default.nix
+++ b/pkgs/applications/misc/hdate/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   };
   meta = {
     description = "Hebrew calendar and solar astronomical times library and utilities";
-    homepage = https://sourceforge.net/projects/libhdate/;
+    homepage = "https://sourceforge.net/projects/libhdate/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ CharlesHD ];
   };
diff --git a/pkgs/applications/misc/hello/default.nix b/pkgs/applications/misc/hello/default.nix
index 8bae8ce373c78..32c8c696730f7 100644
--- a/pkgs/applications/misc/hello/default.nix
+++ b/pkgs/applications/misc/hello/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       GNU Hello is a program that prints "Hello, world!" when you run it.
       It is fully customizable.
     '';
-    homepage = https://www.gnu.org/software/hello/manual/;
+    homepage = "https://www.gnu.org/software/hello/manual/";
     changelog = "https://git.savannah.gnu.org/cgit/hello.git/plain/NEWS?h=v${version}";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.eelco ];
diff --git a/pkgs/applications/misc/hivemind/default.nix b/pkgs/applications/misc/hivemind/default.nix
index b3fb84340f212..8a8f80f57977f 100644
--- a/pkgs/applications/misc/hivemind/default.nix
+++ b/pkgs/applications/misc/hivemind/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
   };
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/DarthSim/;
+    homepage = "https://github.com/DarthSim/";
     description = "Process manager for Procfile-based applications";
     license = with licenses; [ mit ];
     maintainers = [ maintainers.sveitser ];
diff --git a/pkgs/applications/misc/houdini/runtime.nix b/pkgs/applications/misc/houdini/runtime.nix
index 279791561d908..51b08af23c5c9 100644
--- a/pkgs/applications/misc/houdini/runtime.nix
+++ b/pkgs/applications/misc/houdini/runtime.nix
@@ -78,7 +78,7 @@ stdenv.mkDerivation rec {
   '';
   meta = {
     description = "3D animation application software";
-    homepage = https://www.sidefx.com;
+    homepage = "https://www.sidefx.com";
     license = stdenv.lib.licenses.unfree;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.canndrew ];
diff --git a/pkgs/applications/misc/hovercraft/default.nix b/pkgs/applications/misc/hovercraft/default.nix
index ba23078bba934..edb8114e4a416 100644
--- a/pkgs/applications/misc/hovercraft/default.nix
+++ b/pkgs/applications/misc/hovercraft/default.nix
@@ -28,7 +28,7 @@ buildPythonApplication rec {
 
   meta = with lib; {
     description = "Makes impress.js presentations from reStructuredText";
-    homepage = https://github.com/regebro/hovercraft;
+    homepage = "https://github.com/regebro/hovercraft";
     license = licenses.mit;
     maintainers = with maintainers; [ goibhniu makefu ];
   };
diff --git a/pkgs/applications/misc/hr/default.nix b/pkgs/applications/misc/hr/default.nix
index 437c42b03317d..91a66bc737819 100644
--- a/pkgs/applications/misc/hr/default.nix
+++ b/pkgs/applications/misc/hr/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/LuRsT/hr;
+    homepage = "https://github.com/LuRsT/hr";
     description = "A horizontal bar for your terminal";
     license = licenses.mit;
     maintainers = [ maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/hstr/default.nix b/pkgs/applications/misc/hstr/default.nix
index 31ecfccd5848f..b1e740fb76078 100644
--- a/pkgs/applications/misc/hstr/default.nix
+++ b/pkgs/applications/misc/hstr/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://github.com/dvorka/hstr;
+    homepage = "https://github.com/dvorka/hstr";
     description = "Shell history suggest box - easily view, navigate, search and use your command history";
     license = stdenv.lib.licenses.asl20;
     maintainers = [ stdenv.lib.maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/hubstaff/default.nix b/pkgs/applications/misc/hubstaff/default.nix
index b2997ece5d566..bbe05e0396bbc 100644
--- a/pkgs/applications/misc/hubstaff/default.nix
+++ b/pkgs/applications/misc/hubstaff/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Time tracking software";
-    homepage = https://hubstaff.com/;
+    homepage = "https://hubstaff.com/";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ michalrus srghma ];
diff --git a/pkgs/applications/misc/hyper/default.nix b/pkgs/applications/misc/hyper/default.nix
index f21675e60b2d8..1535b1a2568eb 100644
--- a/pkgs/applications/misc/hyper/default.nix
+++ b/pkgs/applications/misc/hyper/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   dontPatchELF = true;
   meta = with lib; {
     description = "A terminal built on web technologies";
-    homepage    = https://hyper.is/;
+    homepage    = "https://hyper.is/";
     maintainers = with maintainers; [ puffnfresh ];
     license     = licenses.mit;
     platforms   = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/icesl/default.nix b/pkgs/applications/misc/icesl/default.nix
index 3ee4fd8259a9e..7b642dffa5038 100644
--- a/pkgs/applications/misc/icesl/default.nix
+++ b/pkgs/applications/misc/icesl/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "IceSL is a GPU-accelerated procedural modeler and slicer for 3D printing.";
-    homepage = http://shapeforge.loria.fr/icesl/index.html;
+    homepage = "http://shapeforge.loria.fr/icesl/index.html";
     license = licenses.inria-icesl;
     platforms = [ "i686-linux" "x86_64-linux" ];
     maintainers = with maintainers; [ mgttlinger ];
diff --git a/pkgs/applications/misc/ikiwiki/default.nix b/pkgs/applications/misc/ikiwiki/default.nix
index 8b908f1f9cf29..1515b4b0f99d3 100644
--- a/pkgs/applications/misc/ikiwiki/default.nix
+++ b/pkgs/applications/misc/ikiwiki/default.nix
@@ -83,7 +83,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Wiki compiler, storing pages and history in a RCS";
-    homepage = http://ikiwiki.info/;
+    homepage = "http://ikiwiki.info/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.peti ];
diff --git a/pkgs/applications/misc/iterm2/default.nix b/pkgs/applications/misc/iterm2/default.nix
index cabe306defc88..e273eda45c315 100644
--- a/pkgs/applications/misc/iterm2/default.nix
+++ b/pkgs/applications/misc/iterm2/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A replacement for Terminal and the successor to iTerm";
-    homepage = https://www.iterm2.com/;
+    homepage = "https://www.iterm2.com/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ tricktron ];
     platforms = platforms.darwin;
diff --git a/pkgs/applications/misc/jbidwatcher/default.nix b/pkgs/applications/misc/jbidwatcher/default.nix
index c8951059d4c84..2d7dca36d2046 100644
--- a/pkgs/applications/misc/jbidwatcher/default.nix
+++ b/pkgs/applications/misc/jbidwatcher/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.jbidwatcher.com/;
+    homepage = "http://www.jbidwatcher.com/";
     description = "Monitor and snipe Ebay auctions";
     license = "LGPL";
 
diff --git a/pkgs/applications/misc/jekyll/default.nix b/pkgs/applications/misc/jekyll/default.nix
index 4d4dd248bc537..111b0a8867a47 100644
--- a/pkgs/applications/misc/jekyll/default.nix
+++ b/pkgs/applications/misc/jekyll/default.nix
@@ -46,7 +46,7 @@ in bundlerApp {
       web server. Jekyll is the engine behind GitHub Pages, which you can use to
       host sites right from your GitHub repositories.
     '';
-    homepage    = https://jekyllrb.com/;
+    homepage    = "https://jekyllrb.com/";
     license     = licenses.mit;
     maintainers = with maintainers; [ primeos pesterhazy ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/misc/jigdo/default.nix b/pkgs/applications/misc/jigdo/default.nix
index 3561fcde839d2..134354de40b75 100644
--- a/pkgs/applications/misc/jigdo/default.nix
+++ b/pkgs/applications/misc/jigdo/default.nix
@@ -5,13 +5,13 @@ stdenv.mkDerivation {
 
   # Debian sources
   src = fetchurl {
-    url = http://ftp.de.debian.org/debian/pool/main/j/jigdo/jigdo_0.7.3.orig.tar.gz;
+    url = "http://ftp.de.debian.org/debian/pool/main/j/jigdo/jigdo_0.7.3.orig.tar.gz";
     sha256 = "1qvqzgzb0dzq82fa1ffs6hyij655rajnfwkljk1y0mnkygnha1xv";
   };
 
   patches = [
     (fetchurl {
-      url = http://ftp.de.debian.org/debian/pool/main/j/jigdo/jigdo_0.7.3-4.diff.gz;
+      url = "http://ftp.de.debian.org/debian/pool/main/j/jigdo/jigdo_0.7.3-4.diff.gz";
       sha256 = "03zsh57fijciiv23lf55k6fbfhhzm866xjhx83x54v5s1g2h6m8y";
     })
     ./sizewidth.patch
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Download utility that can fetch files from several sources simultaneously";
-    homepage = http://atterer.net/jigdo/;
+    homepage = "http://atterer.net/jigdo/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/joplin-desktop/default.nix b/pkgs/applications/misc/joplin-desktop/default.nix
index 4219851fc9d31..8c066ddf0b824 100644
--- a/pkgs/applications/misc/joplin-desktop/default.nix
+++ b/pkgs/applications/misc/joplin-desktop/default.nix
@@ -40,7 +40,7 @@ in appimageTools.wrapType2 rec {
       applications directly or from your own text editor. The notes are in
       Markdown format.
     '';
-    homepage = https://joplin.cozic.net/;
+    homepage = "https://joplin.cozic.net/";
     license = licenses.mit;
     maintainers = with maintainers; [ rafaelgg raquelgb ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/jotta-cli/default.nix b/pkgs/applications/misc/jotta-cli/default.nix
index 1756aefe19a6e..70ca28b467831 100644
--- a/pkgs/applications/misc/jotta-cli/default.nix
+++ b/pkgs/applications/misc/jotta-cli/default.nix
@@ -25,8 +25,8 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description  = "Jottacloud CLI";
-    homepage     = https://www.jottacloud.com/;
-    downloadPage = https://repo.jotta.us/archives/linux/;
+    homepage     = "https://www.jottacloud.com/";
+    downloadPage = "https://repo.jotta.us/archives/linux/";
     maintainers  = with maintainers; [ evenbrenden ];
     license      = licenses.unfree;
     platforms    = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/jp2a/default.nix b/pkgs/applications/misc/jp2a/default.nix
index 1aece5eb4e262..d30e5d96df451 100644
--- a/pkgs/applications/misc/jp2a/default.nix
+++ b/pkgs/applications/misc/jp2a/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libjpeg ];
 
   meta = with stdenv.lib; {
-    homepage = https://csl.name/jp2a/;
+    homepage = "https://csl.name/jp2a/";
     description = "A small utility that converts JPG images to ASCII";
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/jrnl/default.nix b/pkgs/applications/misc/jrnl/default.nix
index 3260f6a506908..992b981c00376 100644
--- a/pkgs/applications/misc/jrnl/default.nix
+++ b/pkgs/applications/misc/jrnl/default.nix
@@ -22,7 +22,7 @@ buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = http://maebert.github.io/jrnl/;
+    homepage = "http://maebert.github.io/jrnl/";
     description = "A simple command line journal application that stores your journal in a plain text file";
     license = licenses.mit;
     maintainers = with maintainers; [ zalakain ];
diff --git a/pkgs/applications/misc/k2pdfopt/default.nix b/pkgs/applications/misc/k2pdfopt/default.nix
index 69d78575e2a36..8899654cc4c88 100644
--- a/pkgs/applications/misc/k2pdfopt/default.nix
+++ b/pkgs/applications/misc/k2pdfopt/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Optimizes PDF/DJVU files for mobile e-readers (e.g. the Kindle) and smartphones";
-    homepage = http://www.willus.com/k2pdfopt;
+    homepage = "http://www.willus.com/k2pdfopt";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ bosu danielfullmer ];
diff --git a/pkgs/applications/misc/kanboard/default.nix b/pkgs/applications/misc/kanboard/default.nix
index b790fb9e6c454..9e2857c960fc4 100644
--- a/pkgs/applications/misc/kanboard/default.nix
+++ b/pkgs/applications/misc/kanboard/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Kanban project management software";
-    homepage = https://kanboard.net;
+    homepage = "https://kanboard.net";
     license = licenses.mit;
     maintainers = with maintainers; [ fpletz lheckemann ];
   };
diff --git a/pkgs/applications/misc/kdeconnect/default.nix b/pkgs/applications/misc/kdeconnect/default.nix
index e8bdcb3711896..c3d2feb2fed78 100644
--- a/pkgs/applications/misc/kdeconnect/default.nix
+++ b/pkgs/applications/misc/kdeconnect/default.nix
@@ -44,7 +44,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "KDE Connect provides several features to integrate your phone and your computer";
-    homepage    = https://community.kde.org/KDEConnect;
+    homepage    = "https://community.kde.org/KDEConnect";
     license     = with licenses; [ gpl2 ];
     maintainers = with maintainers; [ fridh ];
   };
diff --git a/pkgs/applications/misc/keepass-plugins/keepasshttp/default.nix b/pkgs/applications/misc/keepass-plugins/keepasshttp/default.nix
index 76ea9df78c25e..f9dbf14624f72 100644
--- a/pkgs/applications/misc/keepass-plugins/keepasshttp/default.nix
+++ b/pkgs/applications/misc/keepass-plugins/keepasshttp/default.nix
@@ -17,7 +17,7 @@ let
 
     meta = {
       description = "KeePass plugin to expose password entries securely (256bit AES/CBC) over HTTP";
-      homepage    = https://github.com/pfn/keepasshttp;
+      homepage    = "https://github.com/pfn/keepasshttp";
       platforms   = with stdenv.lib.platforms; linux;
       license     = stdenv.lib.licenses.gpl3;
     };
diff --git a/pkgs/applications/misc/keepass-plugins/keepassrpc/default.nix b/pkgs/applications/misc/keepass-plugins/keepassrpc/default.nix
index 562835159eb38..3d41c45f6dc53 100644
--- a/pkgs/applications/misc/keepass-plugins/keepassrpc/default.nix
+++ b/pkgs/applications/misc/keepass-plugins/keepassrpc/default.nix
@@ -12,7 +12,7 @@ let
 
     meta = with stdenv.lib; {
       description = "The KeePassRPC plugin that needs to be installed inside KeePass in order for Kee to be able to connect your browser to your passwords";
-      homepage    = https://github.com/kee-org/keepassrpc;
+      homepage    = "https://github.com/kee-org/keepassrpc";
       platforms   = [ "x86_64-linux" ];
       license     = licenses.gpl2;
       maintainers = with maintainers; [ mjanczyk svsdep mgregoire ];
diff --git a/pkgs/applications/misc/keepass/default.nix b/pkgs/applications/misc/keepass/default.nix
index b954d2d3cdb8a..1d668e039bd07 100644
--- a/pkgs/applications/misc/keepass/default.nix
+++ b/pkgs/applications/misc/keepass/default.nix
@@ -107,7 +107,7 @@ with builtins; buildDotnetPackage rec {
 
   meta = {
     description = "GUI password manager with strong cryptography";
-    homepage = http://www.keepass.info/;
+    homepage = "http://www.keepass.info/";
     maintainers = with stdenv.lib.maintainers; [ amorsillo obadz joncojonathan jraygauthier ];
     platforms = with stdenv.lib.platforms; all;
     license = stdenv.lib.licenses.gpl2;
diff --git a/pkgs/applications/misc/keepassx/2.0.nix b/pkgs/applications/misc/keepassx/2.0.nix
index 36734a97516b9..fdd11db509fc3 100644
--- a/pkgs/applications/misc/keepassx/2.0.nix
+++ b/pkgs/applications/misc/keepassx/2.0.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Qt password manager compatible with its Win32 and Pocket PC versions";
-    homepage = https://www.keepassx.org/;
+    homepage = "https://www.keepassx.org/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ qknight ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/misc/keepassx/community.nix b/pkgs/applications/misc/keepassx/community.nix
index c6bcd56167c09..0ed1cd27be059 100644
--- a/pkgs/applications/misc/keepassx/community.nix
+++ b/pkgs/applications/misc/keepassx/community.nix
@@ -114,7 +114,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Password manager to store your passwords safely and auto-type them into your everyday websites and applications";
     longDescription = "A community fork of KeePassX, which is itself a port of KeePass Password Safe. The goal is to extend and improve KeePassX with new features and bugfixes to provide a feature-rich, fully cross-platform and modern open-source password manager. Accessible via native cross-platform GUI, CLI, and browser integration with the KeePassXC Browser Extension (https://github.com/keepassxreboot/keepassxc-browser).";
-    homepage = https://keepassxc.org/;
+    homepage = "https://keepassxc.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ jonafato ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/misc/keepassx/default.nix b/pkgs/applications/misc/keepassx/default.nix
index 7adbcb86c501a..d0980001c8f69 100644
--- a/pkgs/applications/misc/keepassx/default.nix
+++ b/pkgs/applications/misc/keepassx/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Qt password manager compatible with its Win32 and Pocket PC versions";
-    homepage = https://www.keepassx.org/;
+    homepage = "https://www.keepassx.org/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ qknight ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/misc/khal/default.nix b/pkgs/applications/misc/khal/default.nix
index c435eaefed506..ae9576e6cbc77 100644
--- a/pkgs/applications/misc/khal/default.nix
+++ b/pkgs/applications/misc/khal/default.nix
@@ -61,7 +61,7 @@ with python3.pkgs; buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://lostpackets.de/khal/;
+    homepage = "http://lostpackets.de/khal/";
     description = "CLI calendar application";
     license = licenses.mit;
     maintainers = with maintainers; [ gebner ];
diff --git a/pkgs/applications/misc/kitty/default.nix b/pkgs/applications/misc/kitty/default.nix
index 9269add3173b0..d168222792067 100644
--- a/pkgs/applications/misc/kitty/default.nix
+++ b/pkgs/applications/misc/kitty/default.nix
@@ -122,7 +122,7 @@ buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/kovidgoyal/kitty;
+    homepage = "https://github.com/kovidgoyal/kitty";
     description = "A modern, hackable, featureful, OpenGL based terminal emulator";
     license = licenses.gpl3;
     platforms = platforms.darwin ++ platforms.linux;
diff --git a/pkgs/applications/misc/kiwix/default.nix b/pkgs/applications/misc/kiwix/default.nix
index 898186b714b69..ff6b1e9de2dc6 100644
--- a/pkgs/applications/misc/kiwix/default.nix
+++ b/pkgs/applications/misc/kiwix/default.nix
@@ -9,19 +9,19 @@ with stdenv.lib;
 
 let
   xulrunner64_tar = fetchurl {
-    url = http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-x86_64.tar.bz2;
+    url = "http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-x86_64.tar.bz2";
     sha256 = "0i3m30gm5z7qmas14id6ypvbmnb2k7jhz8aby2wz5vvv49zqmx3s";
   };
   xulrunnersdk64_tar = fetchurl {
-    url = http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-x86_64.sdk.tar.bz2;
+    url = "http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-x86_64.sdk.tar.bz2";
     sha256 = "0z90v7c4mq15g5klmsj8vs2r10fbygj3qzynx4952hkv8ihw8n3a";
   };
   xulrunner32_tar = fetchurl {
-    url = http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-i686.tar.bz2;
+    url = "http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-i686.tar.bz2";
     sha256 = "0yln6pxz8f6b9wm9124sx049z8mgi17lgd63rcv2hnix825y8gjb";
   };
   xulrunnersdk32_tar = fetchurl {
-    url = http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-i686.sdk.tar.bz2;
+    url = "http://download.kiwix.org/dev/xulrunner-29.0.en-US.linux-i686.sdk.tar.bz2";
     sha256 = "1h9vcbvf8wgds6i2z20y7krpys0mqsqhv1ijyfljanp6vyll9fvi";
   };
 
@@ -98,7 +98,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An offline reader for Web content";
-    homepage = https://kiwix.org;
+    homepage = "https://kiwix.org";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ robbinch ];
diff --git a/pkgs/applications/misc/kjv/default.nix b/pkgs/applications/misc/kjv/default.nix
index 7868e74d010c0..307781931e971 100644
--- a/pkgs/applications/misc/kjv/default.nix
+++ b/pkgs/applications/misc/kjv/default.nix
@@ -2,7 +2,7 @@
 
 let
 
-patch-base = https://github.com/LukeSmithxyz/kjv/commit/;
+patch-base = "https://github.com/LukeSmithxyz/kjv/commit/";
 
 add-apocrypha = fetchpatch {
   url = patch-base + "b92b7622285d10464f9274f11e740bef90705bbc.patch";
diff --git a/pkgs/applications/misc/krename/default.nix b/pkgs/applications/misc/krename/default.nix
index 8b6b7741c7df9..816b352460ba2 100644
--- a/pkgs/applications/misc/krename/default.nix
+++ b/pkgs/applications/misc/krename/default.nix
@@ -25,7 +25,7 @@ in mkDerivation rec {
 
   meta = with lib; {
     description = "A powerful batch renamer for KDE";
-    homepage = https://kde.org/applications/utilities/krename/;
+    homepage = "https://kde.org/applications/utilities/krename/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ peterhoeg ];
     inherit (kconfig.meta) platforms;
diff --git a/pkgs/applications/misc/krusader/default.nix b/pkgs/applications/misc/krusader/default.nix
index 15979def34b03..4ae8a99b35a68 100644
--- a/pkgs/applications/misc/krusader/default.nix
+++ b/pkgs/applications/misc/krusader/default.nix
@@ -19,7 +19,7 @@ in mkDerivation rec {
   meta = with lib; {
     description = "Norton/Total Commander clone for KDE";
     license = licenses.gpl2;
-    homepage = http://www.krusader.org;
+    homepage = "http://www.krusader.org";
     maintainers = with maintainers; [ sander ];
   };
 
diff --git a/pkgs/applications/misc/lenmus/default.nix b/pkgs/applications/misc/lenmus/default.nix
index 76abe7c9b4b34..532166cf6fb08 100644
--- a/pkgs/applications/misc/lenmus/default.nix
+++ b/pkgs/applications/misc/lenmus/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
       It allows you to focus on specific skills and exercises, on both theory and aural training.
       The different activities can be customized to meet your needs
     '';
-    homepage = http://www.lenmus.org/;
+    homepage = "http://www.lenmus.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers;  [ ramkromberg ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/misc/libosmocore/default.nix b/pkgs/applications/misc/libosmocore/default.nix
index 846ce30984250..2bd8bfa99bcd6 100644
--- a/pkgs/applications/misc/libosmocore/default.nix
+++ b/pkgs/applications/misc/libosmocore/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "libosmocore";
-    homepage = https://github.com/osmocom/libosmocore;
+    homepage = "https://github.com/osmocom/libosmocore";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/misc/lighthouse/default.nix b/pkgs/applications/misc/lighthouse/default.nix
index 7b5b40d65a363..9e651c59d4eb0 100644
--- a/pkgs/applications/misc/lighthouse/default.nix
+++ b/pkgs/applications/misc/lighthouse/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A simple flexible popup dialog to run on X";
-    homepage = https://github.com/emgram769/lighthouse;
+    homepage = "https://github.com/emgram769/lighthouse";
     license = licenses.mit;
     maintainers = with maintainers; [ ramkromberg ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/lilyterm/default.nix b/pkgs/applications/misc/lilyterm/default.nix
index e4f797766e0bd..28f9625b5b667 100644
--- a/pkgs/applications/misc/lilyterm/default.nix
+++ b/pkgs/applications/misc/lilyterm/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       LilyTerm is a terminal emulator based off of libvte that aims to be fast and lightweight.
     '';
-    homepage = https://lilyterm.luna.com.tw/;
+    homepage = "https://lilyterm.luna.com.tw/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ AndersonTorres Profpatsch ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/llpp/default.nix b/pkgs/applications/misc/llpp/default.nix
index 25f9b10b1e859..e2ec64932ff22 100644
--- a/pkgs/applications/misc/llpp/default.nix
+++ b/pkgs/applications/misc/llpp/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://repo.or.cz/w/llpp.git;
+    homepage = "https://repo.or.cz/w/llpp.git";
     description = "A MuPDF based PDF pager written in OCaml";
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub enzime ];
diff --git a/pkgs/applications/misc/loxodo/default.nix b/pkgs/applications/misc/loxodo/default.nix
index 846df292eb1a2..4b201c66fe5ef 100644
--- a/pkgs/applications/misc/loxodo/default.nix
+++ b/pkgs/applications/misc/loxodo/default.nix
@@ -30,7 +30,7 @@ py.buildPythonApplication {
 
   meta = with stdenv.lib; {
     description = "A Password Safe V3 compatible password vault";
-    homepage = https://www.christoph-sommer.de/loxodo/;
+    homepage = "https://www.christoph-sommer.de/loxodo/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/misc/ltwheelconf/default.nix b/pkgs/applications/misc/ltwheelconf/default.nix
index 61151cb155061..2ceb8e91def87 100644
--- a/pkgs/applications/misc/ltwheelconf/default.nix
+++ b/pkgs/applications/misc/ltwheelconf/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/thk/LTWheelConf;
+    homepage = "https://github.com/thk/LTWheelConf";
     description = "Logitech wheels configuration tool";
     license = licenses.gpl3;
     maintainers = [ maintainers.ebzzry ];
diff --git a/pkgs/applications/misc/lxterminal/default.nix b/pkgs/applications/misc/lxterminal/default.nix
index 0802a32d92b18..8c002bd14b086 100644
--- a/pkgs/applications/misc/lxterminal/default.nix
+++ b/pkgs/applications/misc/lxterminal/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation {
       desktop-independent VTE-based terminal emulator for LXDE without any
       unnecessary dependencies.
     '';
-    homepage = https://wiki.lxde.org/en/LXTerminal;
+    homepage = "https://wiki.lxde.org/en/LXTerminal";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.velovix ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/lyx/default.nix b/pkgs/applications/misc/lyx/default.nix
index f9d8599e329cd..b96e6b2a02d56 100644
--- a/pkgs/applications/misc/lyx/default.nix
+++ b/pkgs/applications/misc/lyx/default.nix
@@ -36,7 +36,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "WYSIWYM frontend for LaTeX, DocBook";
-    homepage = http://www.lyx.org;
+    homepage = "http://www.lyx.org";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.vcunat ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/madonctl/default.nix b/pkgs/applications/misc/madonctl/default.nix
index 9a134343d296b..a61c66d937461 100644
--- a/pkgs/applications/misc/madonctl/default.nix
+++ b/pkgs/applications/misc/madonctl/default.nix
@@ -23,7 +23,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "CLI for the Mastodon social network API";
-    homepage = https://github.com/McKael/madonctl;
+    homepage = "https://github.com/McKael/madonctl";
     license = licenses.mit;
     platforms = platforms.unix;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/misc/makeself/default.nix b/pkgs/applications/misc/makeself/default.nix
index f2585f7814656..7dedf52e89396 100644
--- a/pkgs/applications/misc/makeself/default.nix
+++ b/pkgs/applications/misc/makeself/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://megastep.org/makeself;
+    homepage = "http://megastep.org/makeself";
     description = "Utility to create self-extracting packages";
     license = licenses.gpl2;
     maintainers = [ maintainers.wmertens ];
diff --git a/pkgs/applications/misc/mako/default.nix b/pkgs/applications/misc/mako/default.nix
index f86effe989fa2..89ae647042d3d 100644
--- a/pkgs/applications/misc/mako/default.nix
+++ b/pkgs/applications/misc/mako/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A lightweight Wayland notification daemon";
-    homepage = https://wayland.emersion.fr/mako/;
+    homepage = "https://wayland.emersion.fr/mako/";
     license = licenses.mit;
     maintainers = with maintainers; [ dywedir synthetica ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/mapproxy/default.nix b/pkgs/applications/misc/mapproxy/default.nix
index e5826c09d77d2..0261dfbe89914 100644
--- a/pkgs/applications/misc/mapproxy/default.nix
+++ b/pkgs/applications/misc/mapproxy/default.nix
@@ -57,8 +57,8 @@ buildPythonApplication rec {
   doCheck = false;
   meta = with lib; {
   description = "MapProxy is an open source proxy for geospatial data";
-  homepage = https://mapproxy.org/;
+  homepage = "https://mapproxy.org/";
   license = licenses.asl20;
   maintainers = with maintainers; [ rakesh4g ];
   };
-}
\ No newline at end of file
+}
diff --git a/pkgs/applications/misc/mdp/default.nix b/pkgs/applications/misc/mdp/default.nix
index 03f30d64fb2de..b96c4d00214b8 100644
--- a/pkgs/applications/misc/mdp/default.nix
+++ b/pkgs/applications/misc/mdp/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/visit1985/mdp;
+    homepage = "https://github.com/visit1985/mdp";
     description = "A command-line based markdown presentation tool";
     maintainers = with maintainers; [ matthiasbeyer vrthra ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/misc/mediainfo-gui/default.nix b/pkgs/applications/misc/mediainfo-gui/default.nix
index b84bc08ddb374..bd018a690d48b 100644
--- a/pkgs/applications/misc/mediainfo-gui/default.nix
+++ b/pkgs/applications/misc/mediainfo-gui/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
       MediaInfo is a convenient unified display of the most relevant technical
       and tag data for video and audio files.
     '';
-    homepage = https://mediaarea.net/;
+    homepage = "https://mediaarea.net/";
     license = licenses.bsd2;
     platforms = platforms.linux;
     maintainers = [ maintainers.devhell ];
diff --git a/pkgs/applications/misc/megacmd/default.nix b/pkgs/applications/misc/megacmd/default.nix
index 9fe810e41477c..c54151de3b1aa 100644
--- a/pkgs/applications/misc/megacmd/default.nix
+++ b/pkgs/applications/misc/megacmd/default.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "MEGA Command Line Interactive and Scriptable Application";
-    homepage    = https://mega.nz/;
+    homepage    = "https://mega.nz/";
     license     = licenses.unfree;
     platforms   = [ "i686-linux" "x86_64-linux" ];
     maintainers = [ maintainers.wedens ];
diff --git a/pkgs/applications/misc/memo/default.nix b/pkgs/applications/misc/memo/default.nix
index 3749f568aef29..66fe0d7207c23 100644
--- a/pkgs/applications/misc/memo/default.nix
+++ b/pkgs/applications/misc/memo/default.nix
@@ -43,8 +43,8 @@ stdenv.mkDerivation rec {
       A simple tool written in bash to memorize stuff.
       Memo organizes is structured through topics which are folders in ~/memo.
     '';
-    homepage = http://palovandalo.com/memo/;
-    downloadPage = https://github.com/mrVanDalo/memo/releases;
+    homepage = "http://palovandalo.com/memo/";
+    downloadPage = "https://github.com/mrVanDalo/memo/releases";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.mrVanDalo ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/misc/menumaker/default.nix b/pkgs/applications/misc/menumaker/default.nix
index e06f2a88ade4c..22cf63e536c70 100644
--- a/pkgs/applications/misc/menumaker/default.nix
+++ b/pkgs/applications/misc/menumaker/default.nix
@@ -13,7 +13,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Heuristics-driven menu generator for several window managers";
-    homepage = http://menumaker.sourceforge.net;
+    homepage = "http://menumaker.sourceforge.net";
     license = licenses.bsd2;
     platforms = platforms.unix;
     maintainers = [ maintainers.romildo ];
diff --git a/pkgs/applications/misc/merkaartor/default.nix b/pkgs/applications/misc/merkaartor/default.nix
index 08643577b49e1..79ee45b4c1c4f 100644
--- a/pkgs/applications/misc/merkaartor/default.nix
+++ b/pkgs/applications/misc/merkaartor/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "OpenStreetMap editor";
-    homepage = http://merkaartor.be/;
+    homepage = "http://merkaartor.be/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ];
   };
diff --git a/pkgs/applications/misc/metar/default.nix b/pkgs/applications/misc/metar/default.nix
index ca4f91533ecfa..f5185c6398739 100644
--- a/pkgs/applications/misc/metar/default.nix
+++ b/pkgs/applications/misc/metar/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   buildInputs = [ curl ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/keesL/metar;
+    homepage = "https://github.com/keesL/metar";
     license = licenses.gpl2;
     maintainers = [ maintainers.zalakain ];
     description = "Downloads weather reports and optionally decodes them";
diff --git a/pkgs/applications/misc/milu/default.nix b/pkgs/applications/misc/milu/default.nix
index 2eee9ad40c168..84cc0e0bc8dc1 100644
--- a/pkgs/applications/misc/milu/default.nix
+++ b/pkgs/applications/misc/milu/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Higher Order Mutation Testing Tool for C and C++ programs";
-    homepage = https://github.com/yuejia/Milu;
+    homepage = "https://github.com/yuejia/Milu";
     license = stdenv.lib.licenses.bsd2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.vrthra ];
diff --git a/pkgs/applications/misc/minergate-cli/default.nix b/pkgs/applications/misc/minergate-cli/default.nix
index eff93c8e99c11..61b900c40122c 100644
--- a/pkgs/applications/misc/minergate-cli/default.nix
+++ b/pkgs/applications/misc/minergate-cli/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Minergate CPU/GPU console client mining software";
-    homepage = https://www.minergate.com/;
+    homepage = "https://www.minergate.com/";
     license = licenses.unfree;
     maintainers = with maintainers; [ bfortz ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/minergate/default.nix b/pkgs/applications/misc/minergate/default.nix
index a8402d9759319..6fbe39c4da2d1 100644
--- a/pkgs/applications/misc/minergate/default.nix
+++ b/pkgs/applications/misc/minergate/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Minergate CPU/GPU mining software";
-    homepage = https://www.minergate.com/;
+    homepage = "https://www.minergate.com/";
     license = licenses.unfree;
     maintainers = with maintainers; [ bfortz ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/mlterm/default.nix b/pkgs/applications/misc/mlterm/default.nix
index b2012801e1702..da6250fadf3aa 100644
--- a/pkgs/applications/misc/mlterm/default.nix
+++ b/pkgs/applications/misc/mlterm/default.nix
@@ -85,7 +85,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Multi Lingual TERMinal emulator on X11";
-    homepage = http://mlterm.sourceforge.net/;
+    homepage = "http://mlterm.sourceforge.net/";
     license = licenses.bsd3;
     maintainers = with maintainers; [ vrthra ramkromberg ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/misc/moonlight-embedded/default.nix b/pkgs/applications/misc/moonlight-embedded/default.nix
index 08f510a2840e2..328e106694b21 100644
--- a/pkgs/applications/misc/moonlight-embedded/default.nix
+++ b/pkgs/applications/misc/moonlight-embedded/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open source implementation of NVIDIA's GameStream";
-    homepage = https://github.com/irtimmer/moonlight-embedded;
+    homepage = "https://github.com/irtimmer/moonlight-embedded";
     license = licenses.gpl3;
     maintainers = [ maintainers.globin ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/mop/default.nix b/pkgs/applications/misc/mop/default.nix
index c0d41cda02dd4..81c236589654d 100644
--- a/pkgs/applications/misc/mop/default.nix
+++ b/pkgs/applications/misc/mop/default.nix
@@ -24,7 +24,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Simple stock tracker implemented in go";
-    homepage =  https://github.com/mop-tracker/mop;
+    homepage =  "https://github.com/mop-tracker/mop";
     license = licenses.mit;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/misc/mpvc/default.nix b/pkgs/applications/misc/mpvc/default.nix
index 35de284c0baa7..eacc4b5758c36 100644
--- a/pkgs/applications/misc/mpvc/default.nix
+++ b/pkgs/applications/misc/mpvc/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A mpc-like control interface for mpv";
-    homepage = https://github.com/wildefyr/mpvc;
+    homepage = "https://github.com/wildefyr/mpvc";
     license = licenses.mit;
     maintainers = [ maintainers.neeasade ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/mqtt-bench/default.nix b/pkgs/applications/misc/mqtt-bench/default.nix
index 0e8cc2ebcea98..1f6112d7d7bbb 100644
--- a/pkgs/applications/misc/mqtt-bench/default.nix
+++ b/pkgs/applications/misc/mqtt-bench/default.nix
@@ -26,7 +26,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Mosquitto benchmark tool";
-    homepage = https://github.com/takanorig/mqtt-bench;
+    homepage = "https://github.com/takanorig/mqtt-bench";
     maintainers = with maintainers; [ disassembler ];
   };
 }
diff --git a/pkgs/applications/misc/mrxvt/default.nix b/pkgs/applications/misc/mrxvt/default.nix
index a6efb19b5774a..6717fc3c97f95 100644
--- a/pkgs/applications/misc/mrxvt/default.nix
+++ b/pkgs/applications/misc/mrxvt/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
   '';
 
   src = fetchurl {
-    url = mirror://sourceforge/materm/mrxvt-0.5.4.tar.gz;
+    url = "mirror://sourceforge/materm/mrxvt-0.5.4.tar.gz";
     sha256 = "1mqhmnlz32lvld9rc6c1hyz7gjw4anwf39yhbsjkikcgj1das0zl";
   };
 
@@ -33,7 +33,7 @@ stdenv.mkDerivation {
     	Multitabbed lightweight terminal emulator based on rxvt. 
 	Supports transparency, backgroundimages, freetype fonts, ...
     ";
-    homepage = https://sourceforge.net/projects/materm;
+    homepage = "https://sourceforge.net/projects/materm";
     license = "GPL";
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/misc/mucommander/default.nix b/pkgs/applications/misc/mucommander/default.nix
index 12a0720e44730..e598e099d0650 100644
--- a/pkgs/applications/misc/mucommander/default.nix
+++ b/pkgs/applications/misc/mucommander/default.nix
@@ -77,7 +77,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.mucommander.com/;
+    homepage = "http://www.mucommander.com/";
     description = "Cross-platform file manager";
     license = licenses.gpl3;
     maintainers = with maintainers; [ volth ];
diff --git a/pkgs/applications/misc/multibootusb/default.nix b/pkgs/applications/misc/multibootusb/default.nix
index ab8802a1b6917..5225f88094fd3 100644
--- a/pkgs/applications/misc/multibootusb/default.nix
+++ b/pkgs/applications/misc/multibootusb/default.nix
@@ -76,7 +76,7 @@ python36Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Multiboot USB creator for Linux live disks";
-    homepage = http://multibootusb.org/;
+    homepage = "http://multibootusb.org/";
     license = licenses.gpl2;
     maintainers = []; # Looking for a maintainer!
   };
diff --git a/pkgs/applications/misc/mupdf/default.nix b/pkgs/applications/misc/mupdf/default.nix
index 32c117c01738b..a3067bc4af864 100644
--- a/pkgs/applications/misc/mupdf/default.nix
+++ b/pkgs/applications/misc/mupdf/default.nix
@@ -80,8 +80,8 @@ in stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://mupdf.com;
-    repositories.git = git://git.ghostscript.com/mupdf.git;
+    homepage = "https://mupdf.com";
+    repositories.git = "git://git.ghostscript.com/mupdf.git";
     description = "Lightweight PDF, XPS, and E-book viewer and toolkit written in portable C";
     license = licenses.agpl3Plus;
     maintainers = with maintainers; [ vrthra fpletz ];
diff --git a/pkgs/applications/misc/mwic/default.nix b/pkgs/applications/misc/mwic/default.nix
index 688ec16b15546..3be02e7c41c2a 100644
--- a/pkgs/applications/misc/mwic/default.nix
+++ b/pkgs/applications/misc/mwic/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://jwilk.net/software/mwic;
+    homepage = "http://jwilk.net/software/mwic";
     description = "spell-checker that groups possible misspellings and shows them in their contexts";
     license = licenses.mit;
     maintainers = with maintainers; [ matthiasbeyer ];
diff --git a/pkgs/applications/misc/mystem/default.nix b/pkgs/applications/misc/mystem/default.nix
index 6a6c95b6572db..27caef9ea2eb2 100644
--- a/pkgs/applications/misc/mystem/default.nix
+++ b/pkgs/applications/misc/mystem/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Morphological analysis of Russian text";
-    homepage = https://yandex.ru/dev/mystem/;
+    homepage = "https://yandex.ru/dev/mystem/";
     license = licenses.unfreeRedistributable;
     maintainers = with maintainers; [ abbradar ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/nanoblogger/default.nix b/pkgs/applications/misc/nanoblogger/default.nix
index b4d97c368ea21..cf7689367bd3e 100644
--- a/pkgs/applications/misc/nanoblogger/default.nix
+++ b/pkgs/applications/misc/nanoblogger/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Small weblog engine written in Bash for the command line";
-    homepage = http://nanoblogger.sourceforge.net/;
+    homepage = "http://nanoblogger.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/navipowm/default.nix b/pkgs/applications/misc/navipowm/default.nix
index 9a40e3bc1053b..80c455f41a0ee 100644
--- a/pkgs/applications/misc/navipowm/default.nix
+++ b/pkgs/applications/misc/navipowm/default.nix
@@ -3,7 +3,7 @@ stdenv.mkDerivation rec {
   name = "navipowm-0.2.4";
 
   src = fetchurl {
-    url = mirror://sourceforge/navipowm/NaviPOWM-0.2.4.tar.gz;
+    url = "mirror://sourceforge/navipowm/NaviPOWM-0.2.4.tar.gz";
     sha256 = "1kdih8kwpgcgfh6l6njkr9gq2j5hv39xvzmzgvhip553kn6bss7b";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ qmake4Hook ];
 
   meta = {
-    homepage = http://navipowm.sourceforge.net/;
+    homepage = "http://navipowm.sourceforge.net/";
     description = "Car navigation system";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ ];
diff --git a/pkgs/applications/misc/navit/default.nix b/pkgs/applications/misc/navit/default.nix
index 2263dfc1fbc06..099bcbfb25dfd 100644
--- a/pkgs/applications/misc/navit/default.nix
+++ b/pkgs/applications/misc/navit/default.nix
@@ -81,7 +81,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://www.navit-project.org;
+    homepage = "https://www.navit-project.org";
     description = "Car navigation system with routing engine using OSM maps";
     license = licenses.gpl2;
     maintainers = [ maintainers.genesis ];
diff --git a/pkgs/applications/misc/neap/default.nix b/pkgs/applications/misc/neap/default.nix
index 4104d35cf10c3..992a3c0248a0c 100644
--- a/pkgs/applications/misc/neap/default.nix
+++ b/pkgs/applications/misc/neap/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Systray workspace pager";
-    homepage = https://github.com/vzxwco/neap;
+    homepage = "https://github.com/vzxwco/neap";
     license = licenses.bsd2;
     platforms = platforms.unix;
     maintainers = [ maintainers.romildo ];
diff --git a/pkgs/applications/misc/netsurf/browser/default.nix b/pkgs/applications/misc/netsurf/browser/default.nix
index c1ba5ba23b1e4..f2fdd01215d68 100644
--- a/pkgs/applications/misc/netsurf/browser/default.nix
+++ b/pkgs/applications/misc/netsurf/browser/default.nix
@@ -81,7 +81,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Free opensource web browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/buildsystem/default.nix b/pkgs/applications/misc/netsurf/buildsystem/default.nix
index 0560b1d25b3e3..9d690546102ab 100644
--- a/pkgs/applications/misc/netsurf/buildsystem/default.nix
+++ b/pkgs/applications/misc/netsurf/buildsystem/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Build system for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libcss/default.nix b/pkgs/applications/misc/netsurf/libcss/default.nix
index ed0b7b12e9848..528b0d9b9585d 100644
--- a/pkgs/applications/misc/netsurf/libcss/default.nix
+++ b/pkgs/applications/misc/netsurf/libcss/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE= "-Wno-error=implicit-fallthrough";
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Cascading Style Sheets library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libdom/default.nix b/pkgs/applications/misc/netsurf/libdom/default.nix
index de92219e7f979..8dde3e336cdb2 100644
--- a/pkgs/applications/misc/netsurf/libdom/default.nix
+++ b/pkgs/applications/misc/netsurf/libdom/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Document Object Model library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libhubbub/default.nix b/pkgs/applications/misc/netsurf/libhubbub/default.nix
index 03ee66fc59876..7cfd0a935f3d4 100644
--- a/pkgs/applications/misc/netsurf/libhubbub/default.nix
+++ b/pkgs/applications/misc/netsurf/libhubbub/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "HTML5 parser library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libnsbmp/default.nix b/pkgs/applications/misc/netsurf/libnsbmp/default.nix
index b0fb18c89b1ab..a553eb3e7153d 100644
--- a/pkgs/applications/misc/netsurf/libnsbmp/default.nix
+++ b/pkgs/applications/misc/netsurf/libnsbmp/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "BMP Decoder for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libnsfb/default.nix b/pkgs/applications/misc/netsurf/libnsfb/default.nix
index 29b0a7867db2d..4e56ce7f5a126 100644
--- a/pkgs/applications/misc/netsurf/libnsfb/default.nix
+++ b/pkgs/applications/misc/netsurf/libnsfb/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "CSS parser and selection library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libnsgif/default.nix b/pkgs/applications/misc/netsurf/libnsgif/default.nix
index e826dee0d2529..8bb67df70da97 100644
--- a/pkgs/applications/misc/netsurf/libnsgif/default.nix
+++ b/pkgs/applications/misc/netsurf/libnsgif/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "GIF Decoder for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libnslog/default.nix b/pkgs/applications/misc/netsurf/libnslog/default.nix
index 497630c9aa65d..43b4622ab03a9 100644
--- a/pkgs/applications/misc/netsurf/libnslog/default.nix
+++ b/pkgs/applications/misc/netsurf/libnslog/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "NetSurf Parametric Logging Library";
     license = licenses.mit;
     maintainers = [ maintainers.samueldr ];
diff --git a/pkgs/applications/misc/netsurf/libnspsl/default.nix b/pkgs/applications/misc/netsurf/libnspsl/default.nix
index f0abbdc049a9b..5ded38d974e0b 100644
--- a/pkgs/applications/misc/netsurf/libnspsl/default.nix
+++ b/pkgs/applications/misc/netsurf/libnspsl/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "NetSurf Public Suffix List - Handling library";
     license = licenses.mit;
     maintainers = [ maintainers.samueldr ];
diff --git a/pkgs/applications/misc/netsurf/libnsutils/default.nix b/pkgs/applications/misc/netsurf/libnsutils/default.nix
index 3eaa882cb73d0..6d3a3d1f104fd 100644
--- a/pkgs/applications/misc/netsurf/libnsutils/default.nix
+++ b/pkgs/applications/misc/netsurf/libnsutils/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Generalised utility library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libparserutils/default.nix b/pkgs/applications/misc/netsurf/libparserutils/default.nix
index ea9d7c9ea8555..9fcd5cfebf6ef 100644
--- a/pkgs/applications/misc/netsurf/libparserutils/default.nix
+++ b/pkgs/applications/misc/netsurf/libparserutils/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Parser building library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libsvgtiny/default.nix b/pkgs/applications/misc/netsurf/libsvgtiny/default.nix
index 9a4f922c2b6e6..b6e1b5a1667eb 100644
--- a/pkgs/applications/misc/netsurf/libsvgtiny/default.nix
+++ b/pkgs/applications/misc/netsurf/libsvgtiny/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "NetSurf SVG decoder";
     license = licenses.mit;
     maintainers = [ maintainers.samueldr ];
diff --git a/pkgs/applications/misc/netsurf/libutf8proc/default.nix b/pkgs/applications/misc/netsurf/libutf8proc/default.nix
index 2144ccd330375..dcd56182e3208 100644
--- a/pkgs/applications/misc/netsurf/libutf8proc/default.nix
+++ b/pkgs/applications/misc/netsurf/libutf8proc/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "UTF8 Processing library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/libwapcaplet/default.nix b/pkgs/applications/misc/netsurf/libwapcaplet/default.nix
index ad59b1be10e0e..f3c7bcbd1a0eb 100644
--- a/pkgs/applications/misc/netsurf/libwapcaplet/default.nix
+++ b/pkgs/applications/misc/netsurf/libwapcaplet/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE = "-Wno-error=cast-function-type";
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "String internment library for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/netsurf/nsgenbind/default.nix b/pkgs/applications/misc/netsurf/nsgenbind/default.nix
index 88ac4f0c3eb9a..2dd4b830102a3 100644
--- a/pkgs/applications/misc/netsurf/nsgenbind/default.nix
+++ b/pkgs/applications/misc/netsurf/nsgenbind/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.netsurf-browser.org/;
+    homepage = "http://www.netsurf-browser.org/";
     description = "Generator for JavaScript bindings for netsurf browser";
     license = licenses.gpl2;
     maintainers = [ maintainers.vrthra ];
diff --git a/pkgs/applications/misc/nix-tour/default.nix b/pkgs/applications/misc/nix-tour/default.nix
index 31afed3061a36..05ef696f99b84 100644
--- a/pkgs/applications/misc/nix-tour/default.nix
+++ b/pkgs/applications/misc/nix-tour/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "'the tour of nix' from nixcloud.io/tour as offline version";
-    homepage = https://nixcloud.io/tour;
+    homepage = "https://nixcloud.io/tour";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ qknight ];
diff --git a/pkgs/applications/misc/nixnote2/default.nix b/pkgs/applications/misc/nixnote2/default.nix
index dec8b4ba0a7c3..92bb4ca220773 100644
--- a/pkgs/applications/misc/nixnote2/default.nix
+++ b/pkgs/applications/misc/nixnote2/default.nix
@@ -37,7 +37,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An unofficial client of Evernote";
-    homepage = http://www.nixnote.org/;
+    homepage = "http://www.nixnote.org/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ htr ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/noice/default.nix b/pkgs/applications/misc/noice/default.nix
index 6cc5dc9066dc4..2be5a4ab83b93 100644
--- a/pkgs/applications/misc/noice/default.nix
+++ b/pkgs/applications/misc/noice/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Small ncurses-based file browser";
-    homepage = https://git.2f30.org/noice/;
+    homepage = "https://git.2f30.org/noice/";
     license = licenses.bsd2;
     platforms = platforms.all;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/misc/notejot/default.nix b/pkgs/applications/misc/notejot/default.nix
index 1c02441474c00..a84d3a4c09aa9 100644
--- a/pkgs/applications/misc/notejot/default.nix
+++ b/pkgs/applications/misc/notejot/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Stupidly-simple sticky notes applet";
-    homepage = https://github.com/lainsce/notejot;
+    homepage = "https://github.com/lainsce/notejot";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/notify-osd-customizable/default.nix b/pkgs/applications/misc/notify-osd-customizable/default.nix
index d75ec9ef2c253..36fa888e88843 100644
--- a/pkgs/applications/misc/notify-osd-customizable/default.nix
+++ b/pkgs/applications/misc/notify-osd-customizable/default.nix
@@ -40,7 +40,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Daemon that displays passive pop-up notifications";
-    homepage = https://launchpad.net/notify-osd;
+    homepage = "https://launchpad.net/notify-osd";
     license = licenses.gpl3;
     maintainers = [ maintainers.imalison ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/notify-osd/default.nix b/pkgs/applications/misc/notify-osd/default.nix
index 484ff62e9e685..e2bff00311860 100644
--- a/pkgs/applications/misc/notify-osd/default.nix
+++ b/pkgs/applications/misc/notify-osd/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Daemon that displays passive pop-up notifications";
-    homepage = https://launchpad.net/notify-osd;
+    homepage = "https://launchpad.net/notify-osd";
     license = licenses.gpl3;
     maintainers = [ maintainers.bodil ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/nrsc5/default.nix b/pkgs/applications/misc/nrsc5/default.nix
index 3ad8377684218..ada603cba9631 100644
--- a/pkgs/applications/misc/nrsc5/default.nix
+++ b/pkgs/applications/misc/nrsc5/default.nix
@@ -43,7 +43,7 @@ in stdenv.mkDerivation {
   cmakeFlags = [ "-DUSE_COLOR=ON" "-DUSE_FAAD2=ON" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/theori-io/nrsc5;
+    homepage = "https://github.com/theori-io/nrsc5";
     description = "HD-Radio decoder for RTL-SDR";
     platforms = stdenv.lib.platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/misc/nut/default.nix b/pkgs/applications/misc/nut/default.nix
index 8b0cab3158889..ce80ae14f2331 100644
--- a/pkgs/applications/misc/nut/default.nix
+++ b/pkgs/applications/misc/nut/default.nix
@@ -48,8 +48,8 @@ stdenv.mkDerivation rec {
       interface for monitoring and administering UPS, PDU and SCD hardware.
       It uses a layered approach to connect all of the parts.
     '';
-    homepage = https://networkupstools.org/;
-    repositories.git = https://github.com/networkupstools/nut.git;
+    homepage = "https://networkupstools.org/";
+    repositories.git = "https://github.com/networkupstools/nut.git";
     platforms = platforms.linux;
     maintainers = [ maintainers.pierron ];
     license = with licenses; [ gpl1Plus gpl2Plus gpl3Plus ];
diff --git a/pkgs/applications/misc/ocropus/default.nix b/pkgs/applications/misc/ocropus/default.nix
index a604349afb010..ef371dc59fff9 100644
--- a/pkgs/applications/misc/ocropus/default.nix
+++ b/pkgs/applications/misc/ocropus/default.nix
@@ -52,7 +52,7 @@ pythonPackages.buildPythonApplication rec {
   meta = with stdenv.lib; {
     description = "Open source document analysis and OCR system";
     license = licenses.asl20;
-    homepage = https://github.com/tmbdev/ocropy/;
+    homepage = "https://github.com/tmbdev/ocropy/";
     maintainers = with maintainers; [ domenkozar ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/misc/octoprint/default.nix b/pkgs/applications/misc/octoprint/default.nix
index 29a04627bef40..b9951b6662968 100644
--- a/pkgs/applications/misc/octoprint/default.nix
+++ b/pkgs/applications/misc/octoprint/default.nix
@@ -94,7 +94,7 @@ in py.pkgs.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://octoprint.org/;
+    homepage = "https://octoprint.org/";
     description = "The snappy web interface for your 3D printer";
     license = licenses.agpl3;
     maintainers = with maintainers; [ abbradar gebner ];
diff --git a/pkgs/applications/misc/octoprint/plugins.nix b/pkgs/applications/misc/octoprint/plugins.nix
index 10c4f2f844809..69eb313238bde 100644
--- a/pkgs/applications/misc/octoprint/plugins.nix
+++ b/pkgs/applications/misc/octoprint/plugins.nix
@@ -39,7 +39,7 @@ let
 
       meta = with stdenv.lib; {
         description = "OctoPrint plugin for the Micro 3D printer";
-        homepage = https://github.com/donovan6000/M33-Fio;
+        homepage = "https://github.com/donovan6000/M33-Fio";
         license = licenses.gpl3;
         maintainers = with maintainers; [ abbradar ];
       };
@@ -60,7 +60,7 @@ let
 
       meta = with stdenv.lib; {
         description = "Publish printer status MQTT";
-        homepage = https://github.com/OctoPrint/OctoPrint-MQTT;
+        homepage = "https://github.com/OctoPrint/OctoPrint-MQTT";
         license = licenses.agpl3;
         maintainers = with maintainers; [ peterhoeg ];
       };
@@ -79,7 +79,7 @@ let
 
       meta = with stdenv.lib; {
         description = "Show printers status in window title";
-        homepage = https://github.com/MoonshineSG/OctoPrint-TitleStatus;
+        homepage = "https://github.com/MoonshineSG/OctoPrint-TitleStatus";
         license = licenses.agpl3;
         maintainers = with maintainers; [ abbradar ];
       };
@@ -98,7 +98,7 @@ let
 
       meta = with stdenv.lib; {
         description = "A simple stl viewer tab for OctoPrint";
-        homepage = https://github.com/jneilliii/Octoprint-STLViewer;
+        homepage = "https://github.com/jneilliii/Octoprint-STLViewer";
         license = licenses.agpl3;
         maintainers = with maintainers; [ abbradar ];
       };
diff --git a/pkgs/applications/misc/omegat.nix b/pkgs/applications/misc/omegat.nix
index 27d7ad8730b6a..47536cc9f6a48 100644
--- a/pkgs/applications/misc/omegat.nix
+++ b/pkgs/applications/misc/omegat.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "omegat";
 
   src = fetchurl {  # their zip has repeated files or something, so no fetchzip
-    url = mirror://sourceforge/project/omegat/OmegaT%20-%20Standard/OmegaT%204.3.0/OmegaT_4.3.0_Without_JRE.zip;
+    url = "mirror://sourceforge/project/omegat/OmegaT%20-%20Standard/OmegaT%204.3.0/OmegaT_4.3.0_Without_JRE.zip";
     sha256 = "0axz7r30p34z5hgvdglznc82g7yvm3g56dv5190jixskx6ba58rs";
   };
 
@@ -32,7 +32,7 @@ stdenv.mkDerivation {
       tool with fuzzy matching, translation memory, keyword search, glossaries, and
       translation leveraging into updated projects.
     '';
-    homepage = http://www.omegat.org/;
+    homepage = "http://www.omegat.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ t184256 ];
     platforms = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/misc/onboard/default.nix b/pkgs/applications/misc/onboard/default.nix
index 1e578cde512a7..e427519d4d6e2 100644
--- a/pkgs/applications/misc/onboard/default.nix
+++ b/pkgs/applications/misc/onboard/default.nix
@@ -173,7 +173,7 @@ python3.pkgs.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://launchpad.net/onboard;
+    homepage = "https://launchpad.net/onboard";
     description = "Onscreen keyboard useful for tablet PC users and for mobility impaired users";
     maintainers = with maintainers; [ johnramsden ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/misc/openbox-menu/default.nix b/pkgs/applications/misc/openbox-menu/default.nix
index 8f7f74f712321..e585701032403 100644
--- a/pkgs/applications/misc/openbox-menu/default.nix
+++ b/pkgs/applications/misc/openbox-menu/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   installPhase = "make install prefix=$out";
 
   meta = {
-    homepage = http://fabrice.thiroux.free.fr/openbox-menu_en.html;
+    homepage = "http://fabrice.thiroux.free.fr/openbox-menu_en.html";
     description = "Dynamic XDG menu generator for Openbox";
     longDescription = ''
       Openbox-menu is a pipemenu for Openbox window manager. It provides a
diff --git a/pkgs/applications/misc/openbrf/default.nix b/pkgs/applications/misc/openbrf/default.nix
index e943263600cda..6140343fae75f 100644
--- a/pkgs/applications/misc/openbrf/default.nix
+++ b/pkgs/applications/misc/openbrf/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A tool to edit resource files (BRF)";
-    homepage = https://github.com/cfcohen/openbrf;
+    homepage = "https://github.com/cfcohen/openbrf";
     maintainers = with stdenv.lib.maintainers; [ abbradar ];
     license = licenses.free;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/opencpn/default.nix b/pkgs/applications/misc/opencpn/default.nix
index 375552aaa33a4..f5a88cbaee172 100644
--- a/pkgs/applications/misc/opencpn/default.nix
+++ b/pkgs/applications/misc/opencpn/default.nix
@@ -28,6 +28,6 @@ stdenv.mkDerivation rec {
     maintainers = [ stdenv.lib.maintainers.kragniz ];
     platforms = [ "x86_64-linux" ];
     license = stdenv.lib.licenses.gpl2;
-    homepage = https://opencpn.org/;
+    homepage = "https://opencpn.org/";
   };
 }
diff --git a/pkgs/applications/misc/openjump/default.nix b/pkgs/applications/misc/openjump/default.nix
index c98defee57a09..e537180686cd6 100644
--- a/pkgs/applications/misc/openjump/default.nix
+++ b/pkgs/applications/misc/openjump/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "openjump-1.3.1";
 
   src = fetchurl {
-    url = mirror://sourceforge/jump-pilot/OpenJUMP/1.3.1/openjump-1.3.1.zip;
+    url = "mirror://sourceforge/jump-pilot/OpenJUMP/1.3.1/openjump-1.3.1.zip";
     sha256 = "0y4z53yx0x7rp3c8rnj028ni3gr47r35apgcpqp3jl7r2di6zgqm";
   };
 
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Open source Geographic Information System (GIS) written in the Java programming language";
-    homepage = http://www.openjump.org/index.html;
+    homepage = "http://www.openjump.org/index.html";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [stdenv.lib.maintainers.marcweber];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/orpie/default.nix b/pkgs/applications/misc/orpie/default.nix
index e404da974c46f..d869b09395580 100644
--- a/pkgs/applications/misc/orpie/default.nix
+++ b/pkgs/applications/misc/orpie/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses gsl ] ++ (with ocamlPackages; [ ocaml camlp4 ]);
 
   meta = {
-    homepage = https://github.com/pelzlpj/orpie;
+    homepage = "https://github.com/pelzlpj/orpie";
     description = "A fullscreen RPN calculator for the console";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/misc/osmctools/default.nix b/pkgs/applications/misc/osmctools/default.nix
index c03e57920da9d..b0f1f48d9aea3 100644
--- a/pkgs/applications/misc/osmctools/default.nix
+++ b/pkgs/applications/misc/osmctools/default.nix
@@ -17,9 +17,9 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Command line tools for transforming Open Street Map files";
     homepage = [
-      https://wiki.openstreetmap.org/wiki/osmconvert
-      https://wiki.openstreetmap.org/wiki/osmfilter
-      https://wiki.openstreetmap.org/wiki/osmupdate
+      "https://wiki.openstreetmap.org/wiki/osmconvert"
+      "https://wiki.openstreetmap.org/wiki/osmfilter"
+      "https://wiki.openstreetmap.org/wiki/osmupdate"
     ];
     maintainers = with maintainers; [ sikmir ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/pcmanfm/default.nix b/pkgs/applications/misc/pcmanfm/default.nix
index c6cd118aea80a..202e7a2de95f8 100644
--- a/pkgs/applications/misc/pcmanfm/default.nix
+++ b/pkgs/applications/misc/pcmanfm/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   configureFlags = optional withGtk3 "--with-gtk=3";
 
   meta = with stdenv.lib; {
-    homepage = https://blog.lxde.org/category/pcmanfm/;
+    homepage = "https://blog.lxde.org/category/pcmanfm/";
     license = licenses.gpl2Plus;
     description = "File manager with GTK interface";
     maintainers = [ maintainers.ttuegel ];
diff --git a/pkgs/applications/misc/pcmanx-gtk2/default.nix b/pkgs/applications/misc/pcmanx-gtk2/default.nix
index 17253173a5e4f..6c3241d629b8f 100644
--- a/pkgs/applications/misc/pcmanx-gtk2/default.nix
+++ b/pkgs/applications/misc/pcmanx-gtk2/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://pcman.ptt.cc;
+    homepage = "https://pcman.ptt.cc";
     license = licenses.gpl2;
     description = "Telnet BBS browser with GTK interface";
     maintainers = [ maintainers.sifmelcara ];
diff --git a/pkgs/applications/misc/pdf-quench/default.nix b/pkgs/applications/misc/pdf-quench/default.nix
index 9756d9b42b0a2..d364074d4450e 100644
--- a/pkgs/applications/misc/pdf-quench/default.nix
+++ b/pkgs/applications/misc/pdf-quench/default.nix
@@ -28,7 +28,7 @@ pythonPackages.buildPythonApplication {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/linuxerwang/pdf-quench;
+    homepage = "https://github.com/linuxerwang/pdf-quench";
     description = "A visual tool for cropping pdf files";
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/misc/pdfdiff/default.nix b/pkgs/applications/misc/pdfdiff/default.nix
index ee54904bfd66e..93ca8c6447983 100644
--- a/pkgs/applications/misc/pdfdiff/default.nix
+++ b/pkgs/applications/misc/pdfdiff/default.nix
@@ -33,7 +33,7 @@ py.buildPythonApplication rec {
     '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.cs.ox.ac.uk/people/cas.cremers/misc/pdfdiff.html;
+    homepage = "http://www.cs.ox.ac.uk/people/cas.cremers/misc/pdfdiff.html";
     description = "Tool to view the difference between two PDF or PS files";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/pdfpc/default.nix b/pkgs/applications/misc/pdfpc/default.nix
index fa500989cac92..d8203b9e7b5dc 100644
--- a/pkgs/applications/misc/pdfpc/default.nix
+++ b/pkgs/applications/misc/pdfpc/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A presenter console with multi-monitor support for PDF files";
-    homepage = https://pdfpc.github.io/;
+    homepage = "https://pdfpc.github.io/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ pSub ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/pell/default.nix b/pkgs/applications/misc/pell/default.nix
index fc4e5229c9c01..ae96ce6925e3d 100644
--- a/pkgs/applications/misc/pell/default.nix
+++ b/pkgs/applications/misc/pell/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ebzzry/pell;
+    homepage = "https://github.com/ebzzry/pell";
     description = "A simple host availability monitor";
     license = licenses.mit;
     maintainers = [ maintainers.ebzzry ];
diff --git a/pkgs/applications/misc/perkeep/default.nix b/pkgs/applications/misc/perkeep/default.nix
index ae81ef3c9f6c2..87a6bdf5e53da 100644
--- a/pkgs/applications/misc/perkeep/default.nix
+++ b/pkgs/applications/misc/perkeep/default.nix
@@ -43,7 +43,7 @@ in buildGoPackage rec {
 
   meta = with lib; {
     description = "A way of storing, syncing, sharing, modelling and backing up content (née Camlistore)";
-    homepage = https://perkeep.org;
+    homepage = "https://perkeep.org";
     license = licenses.asl20;
     maintainers = with maintainers; [ cstrahan kalbasit ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/pgadmin/default.nix b/pkgs/applications/misc/pgadmin/default.nix
index 86e10ae0943ea..5fc0703e011b5 100644
--- a/pkgs/applications/misc/pgadmin/default.nix
+++ b/pkgs/applications/misc/pgadmin/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "PostgreSQL administration GUI tool";
-    homepage = https://www.pgadmin.org;
+    homepage = "https://www.pgadmin.org";
     license = licenses.gpl2;
     maintainers = with maintainers; [ domenkozar wmertens ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/pgmanage/default.nix b/pkgs/applications/misc/pgmanage/default.nix
index 241d5786468e2..68f29cb9b9ace 100644
--- a/pkgs/applications/misc/pgmanage/default.nix
+++ b/pkgs/applications/misc/pgmanage/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
       PostgreSQL interface can hope to be. (Note: pgManage replaces Postage,
       which is no longer maintained.)
     '';
-    homepage = https://github.com/pgManage/pgManage;
+    homepage = "https://github.com/pgManage/pgManage";
     license = licenses.postgresql;
     maintainers = [ maintainers.basvandijk ];
   };
diff --git a/pkgs/applications/misc/pgmodeler/default.nix b/pkgs/applications/misc/pgmodeler/default.nix
index 83e45e2558175..7532c6e9bc915 100644
--- a/pkgs/applications/misc/pgmodeler/default.nix
+++ b/pkgs/applications/misc/pgmodeler/default.nix
@@ -24,9 +24,9 @@ mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A database modeling tool for PostgreSQL";
     longDescription = ''pgModeler (PostgreSQL Database Modeler) is an open source database modeling tool designed for PostgreSQL.'';
-    homepage = https://pgmodeler.io/;
+    homepage = "https://pgmodeler.io/";
     license = licenses.gpl3;
     maintainers = [ maintainers.esclear ];
     platforms = platforms.linux;
   };
-}
\ No newline at end of file
+}
diff --git a/pkgs/applications/misc/phwmon/default.nix b/pkgs/applications/misc/phwmon/default.nix
index 6fb70f1c9a267..017383a79a2d2 100644
--- a/pkgs/applications/misc/phwmon/default.nix
+++ b/pkgs/applications/misc/phwmon/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://gitlab.com/o9000/phwmon;
+    homepage = "https://gitlab.com/o9000/phwmon";
     description = "Hardware monitor (CPU, memory, network and disk I/O) for the system tray";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/misc/playonlinux/default.nix b/pkgs/applications/misc/playonlinux/default.nix
index 48188574ad4be..fe9838fe0d97a 100644
--- a/pkgs/applications/misc/playonlinux/default.nix
+++ b/pkgs/applications/misc/playonlinux/default.nix
@@ -103,7 +103,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "GUI for managing Windows programs under linux";
-    homepage = https://www.playonlinux.com/;
+    homepage = "https://www.playonlinux.com/";
     license = licenses.gpl3;
     maintainers = [ maintainers.a1russell ];
     platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/applications/misc/polar-bookshelf/default.nix b/pkgs/applications/misc/polar-bookshelf/default.nix
index 8413f8c8f1023..fc86b2e885de3 100644
--- a/pkgs/applications/misc/polar-bookshelf/default.nix
+++ b/pkgs/applications/misc/polar-bookshelf/default.nix
@@ -81,7 +81,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://getpolarized.io/;
+    homepage = "https://getpolarized.io/";
     description = "Personal knowledge repository for PDF and web content supporting incremental reading and document annotation";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/posterazor/default.nix b/pkgs/applications/misc/posterazor/default.nix
index 7209ee3e40090..674570ec3dd78 100644
--- a/pkgs/applications/misc/posterazor/default.nix
+++ b/pkgs/applications/misc/posterazor/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://posterazor.sourceforge.net/;
+    homepage = "http://posterazor.sourceforge.net/";
     description = "Cuts a raster image into pieces which can afterwards be printed out and assembled to a poster";
     maintainers = [ maintainers.madjar ];
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/misc/printrun/default.nix b/pkgs/applications/misc/printrun/default.nix
index 34144e35bd5ab..cadd98c742602 100644
--- a/pkgs/applications/misc/printrun/default.nix
+++ b/pkgs/applications/misc/printrun/default.nix
@@ -30,7 +30,7 @@ python27Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Pronterface, Pronsole, and Printcore - Pure Python 3d printing host software";
-    homepage = https://github.com/kliment/Printrun;
+    homepage = "https://github.com/kliment/Printrun";
     license = licenses.gpl3;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/misc/procmail/default.nix b/pkgs/applications/misc/procmail/default.nix
index cd3a46ab09ba8..1e6c558defbe0 100644
--- a/pkgs/applications/misc/procmail/default.nix
+++ b/pkgs/applications/misc/procmail/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   patches = [
     ./CVE-2014-3618.patch
     (fetchurl {
-      url = https://sources.debian.org/data/main/p/procmail/3.22-26/debian/patches/30;
+      url = "https://sources.debian.org/data/main/p/procmail/3.22-26/debian/patches/30";
       sha256 = "11zmz1bj0v9pay3ldmyyg7473b80h89gycrhndsgg9q50yhcqaaq";
       name = "CVE-2017-16844";
     })
@@ -25,13 +25,13 @@ stdenv.mkDerivation {
   '';
 
   src = fetchurl {
-    url = ftp://ftp.fu-berlin.de/pub/unix/mail/procmail/procmail-3.22.tar.gz;
+    url = "ftp://ftp.fu-berlin.de/pub/unix/mail/procmail/procmail-3.22.tar.gz";
     sha256 = "05z1c803n5cppkcq99vkyd5myff904lf9sdgynfqngfk9nrpaz08";
   };
 
   meta = with stdenv.lib; {
     description = "Mail processing and filtering utility";
-    homepage = http://www.procmail.org/;
+    homepage = "http://www.procmail.org/";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = with maintainers; [ gebner ];
diff --git a/pkgs/applications/misc/prusa-slicer/default.nix b/pkgs/applications/misc/prusa-slicer/default.nix
index 75183e2026715..144addf02c662 100644
--- a/pkgs/applications/misc/prusa-slicer/default.nix
+++ b/pkgs/applications/misc/prusa-slicer/default.nix
@@ -91,7 +91,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "G-code generator for 3D printer";
-    homepage = https://github.com/prusa3d/PrusaSlicer;
+    homepage = "https://github.com/prusa3d/PrusaSlicer";
     license = licenses.agpl3;
     maintainers = with maintainers; [ moredread tweber ];
   };
diff --git a/pkgs/applications/misc/pt/default.nix b/pkgs/applications/misc/pt/default.nix
index f5504721987a9..ef490702a672f 100644
--- a/pkgs/applications/misc/pt/default.nix
+++ b/pkgs/applications/misc/pt/default.nix
@@ -9,7 +9,7 @@ bundlerApp {
 
   meta = with lib; {
     description = "Minimalist command-line Pivotal Tracker client";
-    homepage    = http://www.github.com/raul/pt;
+    homepage    = "http://www.github.com/raul/pt";
     license     = licenses.mit;
     maintainers = with maintainers; [ ebzzry manveru nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/misc/ptask/default.nix b/pkgs/applications/misc/ptask/default.nix
index 81e316eb0ee92..a5fd55c967bb2 100644
--- a/pkgs/applications/misc/ptask/default.nix
+++ b/pkgs/applications/misc/ptask/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://wpitchoune.net/ptask/;
+    homepage = "http://wpitchoune.net/ptask/";
     description = "GTK-based GUI for taskwarrior";
     license = licenses.gpl2;
     maintainers = [ maintainers.spacefrogg ];
diff --git a/pkgs/applications/misc/pydf/default.nix b/pkgs/applications/misc/pydf/default.nix
index ae29993a79a13..aa2835107088d 100644
--- a/pkgs/applications/misc/pydf/default.nix
+++ b/pkgs/applications/misc/pydf/default.nix
@@ -17,7 +17,7 @@ python3Packages.buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "colourised df(1)-clone";
-    homepage = http://kassiopeia.juls.savba.sk/~garabik/software/pydf/;
+    homepage = "http://kassiopeia.juls.savba.sk/~garabik/software/pydf/";
     license = licenses.publicDomain;
     maintainers = with maintainers; [ monsieurp ];
   };
diff --git a/pkgs/applications/misc/pyditz/cerberus.nix b/pkgs/applications/misc/pyditz/cerberus.nix
index 614e3ca813500..be12906e61ec3 100644
--- a/pkgs/applications/misc/pyditz/cerberus.nix
+++ b/pkgs/applications/misc/pyditz/cerberus.nix
@@ -12,7 +12,7 @@ buildPythonPackage rec {
   checkInputs = [ pytestrunner pytest ];
 
   meta = with stdenv.lib; {
-    homepage = http://python-cerberus.org/;
+    homepage = "http://python-cerberus.org/";
     description = "Lightweight, extensible schema and data validation tool for Python dictionaries";
     license = licenses.mit;
   };
diff --git a/pkgs/applications/misc/pyditz/default.nix b/pkgs/applications/misc/pyditz/default.nix
index 60de2f9abdc96..05338b38dfefe 100644
--- a/pkgs/applications/misc/pyditz/default.nix
+++ b/pkgs/applications/misc/pyditz/default.nix
@@ -20,7 +20,7 @@ in buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://pythonhosted.org/pyditz/;
+    homepage = "https://pythonhosted.org/pyditz/";
     description = "Drop-in replacement for the Ditz distributed issue tracker";
     maintainers = [ maintainers.ilikeavocadoes ];
     license = licenses.lgpl2;
diff --git a/pkgs/applications/misc/pytrainer/default.nix b/pkgs/applications/misc/pytrainer/default.nix
index bb3a92e72c30f..00c4511417922 100644
--- a/pkgs/applications/misc/pytrainer/default.nix
+++ b/pkgs/applications/misc/pytrainer/default.nix
@@ -85,7 +85,7 @@ python3.pkgs.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pytrainer/pytrainer/wiki;
+    homepage = "https://github.com/pytrainer/pytrainer/wiki";
     description = "Application for logging and graphing sporting excursions";
     maintainers = [ maintainers.rycee ];
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/misc/qMasterPassword/default.nix b/pkgs/applications/misc/qMasterPassword/default.nix
index 9775112734258..c2adcabe414c4 100644
--- a/pkgs/applications/misc/qMasterPassword/default.nix
+++ b/pkgs/applications/misc/qMasterPassword/default.nix
@@ -40,7 +40,7 @@ mkDerivation rec {
       there is no password file that can be lost or get stolen. There is also
       no need to trust any online password service.
     '';
-    homepage = https://github.com/bkueng/qMasterPassword;
+    homepage = "https://github.com/bkueng/qMasterPassword";
     license = licenses.gpl3;
     maintainers = [ maintainers.tadeokondrak ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/qlandkartegt/default.nix b/pkgs/applications/misc/qlandkartegt/default.nix
index b9645980c64a2..d780125fbbfa3 100644
--- a/pkgs/applications/misc/qlandkartegt/default.nix
+++ b/pkgs/applications/misc/qlandkartegt/default.nix
@@ -79,7 +79,7 @@ mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = http://www.qlandkarte.org/;
+    homepage = "http://www.qlandkarte.org/";
     description = ''
       QLandkarte GT is the ultimate outdoor aficionado's tool.
       It supports GPS maps in GeoTiff format as well as Garmin's img vector map format.
diff --git a/pkgs/applications/misc/qlandkartegt/garmindev.nix b/pkgs/applications/misc/qlandkartegt/garmindev.nix
index 382e7dbe12180..2137808421437 100644
--- a/pkgs/applications/misc/qlandkartegt/garmindev.nix
+++ b/pkgs/applications/misc/qlandkartegt/garmindev.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.qlandkarte.org/;
+    homepage = "http://www.qlandkarte.org/";
     description = "Garmin Device Drivers for QlandkarteGT";
     license = licenses.gpl2;
     maintainers = with maintainers; [ sikmir ];
diff --git a/pkgs/applications/misc/qmetro/default.nix b/pkgs/applications/misc/qmetro/default.nix
index 49993f2f7ea75..623bd050dc9b6 100644
--- a/pkgs/applications/misc/qmetro/default.nix
+++ b/pkgs/applications/misc/qmetro/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://sourceforge.net/projects/qmetro/;
+    homepage = "https://sourceforge.net/projects/qmetro/";
     description = "Worldwide transit maps viewer";
     license = licenses.gpl3;
 
diff --git a/pkgs/applications/misc/qolibri/default.nix b/pkgs/applications/misc/qolibri/default.nix
index c96fbab4d8121..913d2bc3c6ba3 100644
--- a/pkgs/applications/misc/qolibri/default.nix
+++ b/pkgs/applications/misc/qolibri/default.nix
@@ -20,7 +20,7 @@ mkDerivation {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = https://github.com/ludios/qolibri;
+    homepage = "https://github.com/ludios/qolibri";
     description = "EPWING reader for viewing Japanese dictionaries";
     platforms = platforms.linux;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/misc/qpdfview/default.nix b/pkgs/applications/misc/qpdfview/default.nix
index 4100ab3536b7c..3e55215f4733c 100644
--- a/pkgs/applications/misc/qpdfview/default.nix
+++ b/pkgs/applications/misc/qpdfview/default.nix
@@ -43,7 +43,7 @@ mkDerivation {
     license = stdenv.lib.licenses.gpl2;
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.linux;
-    homepage = https://launchpad.net/qpdfview;
+    homepage = "https://launchpad.net/qpdfview";
     updateWalker = true;
   };
 }
diff --git a/pkgs/applications/misc/qsyncthingtray/default.nix b/pkgs/applications/misc/qsyncthingtray/default.nix
index 46b446b429bf6..70d9f600fa03b 100644
--- a/pkgs/applications/misc/qsyncthingtray/default.nix
+++ b/pkgs/applications/misc/qsyncthingtray/default.nix
@@ -56,7 +56,7 @@ mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = https://github.com/sieren/QSyncthingTray/;
+    homepage = "https://github.com/sieren/QSyncthingTray/";
     description = "A Traybar Application for Syncthing written in C++";
     longDescription = ''
         A cross-platform status bar for Syncthing.
diff --git a/pkgs/applications/misc/qt-box-editor/default.nix b/pkgs/applications/misc/qt-box-editor/default.nix
index 702cadfdaa91b..c65e5377eb3b1 100644
--- a/pkgs/applications/misc/qt-box-editor/default.nix
+++ b/pkgs/applications/misc/qt-box-editor/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Editor of tesseract-ocr box files";
-    homepage = https://github.com/zdenop/qt-box-editor;
+    homepage = "https://github.com/zdenop/qt-box-editor";
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/qtbitcointrader/default.nix b/pkgs/applications/misc/qtbitcointrader/default.nix
index 21d51f172582d..c5dfdf95fb5e3 100644
--- a/pkgs/applications/misc/qtbitcointrader/default.nix
+++ b/pkgs/applications/misc/qtbitcointrader/default.nix
@@ -28,7 +28,7 @@ mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Bitcoin trading client";
-    homepage = https://centrabit.com/;
+    homepage = "https://centrabit.com/";
     license = licenses.gpl3;
     platforms = qt5.qtbase.meta.platforms;
     maintainers = [ maintainers.ehmry ];
diff --git a/pkgs/applications/misc/qtpass/default.nix b/pkgs/applications/misc/qtpass/default.nix
index 6b68071d4d05c..faa199147490e 100644
--- a/pkgs/applications/misc/qtpass/default.nix
+++ b/pkgs/applications/misc/qtpass/default.nix
@@ -53,7 +53,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "A multi-platform GUI for pass, the standard unix password manager";
-    homepage = https://qtpass.org;
+    homepage = "https://qtpass.org";
     license = licenses.gpl3;
     maintainers = [ maintainers.hrdinka ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/quicksynergy/default.nix b/pkgs/applications/misc/quicksynergy/default.nix
index 948bcf33d378f..1956f0ad41d5e 100644
--- a/pkgs/applications/misc/quicksynergy/default.nix
+++ b/pkgs/applications/misc/quicksynergy/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
       Remember to open port 24800 (used by synergys program) if you want to
       host mouse and keyboard.";
-    homepage = https://sourceforge.net/projects/quicksynergy/;
+    homepage = "https://sourceforge.net/projects/quicksynergy/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.spinus ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/ranger/default.nix b/pkgs/applications/misc/ranger/default.nix
index 243913d0a0980..68ddef6569724 100644
--- a/pkgs/applications/misc/ranger/default.nix
+++ b/pkgs/applications/misc/ranger/default.nix
@@ -56,7 +56,7 @@ python3Packages.buildPythonApplication rec {
 
   meta =  with lib; {
     description = "File manager with minimalistic curses interface";
-    homepage = http://ranger.github.io/;
+    homepage = "http://ranger.github.io/";
     license = licenses.gpl3;
     platforms = platforms.unix;
     maintainers = [ maintainers.toonn maintainers.magnetophon ];
diff --git a/pkgs/applications/misc/redis-desktop-manager/default.nix b/pkgs/applications/misc/redis-desktop-manager/default.nix
index ac62ccc00cbfc..ec40347cbcb33 100644
--- a/pkgs/applications/misc/redis-desktop-manager/default.nix
+++ b/pkgs/applications/misc/redis-desktop-manager/default.nix
@@ -75,7 +75,7 @@ EOF
 
   meta = with lib; {
     description = "Cross-platform open source Redis DB management tool";
-    homepage = https://redisdesktop.com/;
+    homepage = "https://redisdesktop.com/";
     license = licenses.lgpl21;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/applications/misc/redshift-plasma-applet/default.nix b/pkgs/applications/misc/redshift-plasma-applet/default.nix
index 2eebe67c46da3..c14eee398ceec 100644
--- a/pkgs/applications/misc/redshift-plasma-applet/default.nix
+++ b/pkgs/applications/misc/redshift-plasma-applet/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "KDE Plasma 5 widget for controlling Redshift";
-    homepage = https://github.com/kotelnik/plasma-applet-redshift-control;
+    homepage = "https://github.com/kotelnik/plasma-applet-redshift-control";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ benley zraexy ];
diff --git a/pkgs/applications/misc/redshift/default.nix b/pkgs/applications/misc/redshift/default.nix
index e9862041f4a82..81fbcc8b48380 100644
--- a/pkgs/applications/misc/redshift/default.nix
+++ b/pkgs/applications/misc/redshift/default.nix
@@ -93,7 +93,7 @@ rec {
         be set to match the lamps in your room.
       '';
       license = licenses.gpl3Plus;
-      homepage = http://jonls.dk/redshift;
+      homepage = "http://jonls.dk/redshift";
       platforms = platforms.unix;
       maintainers = with maintainers; [ yegortimoshenko globin ];
     };
@@ -112,7 +112,7 @@ rec {
 
     meta = redshift.meta // {
       description = redshift.meta.description + "(with wlroots patches)";
-      homepage = https://github.com/minus7/redshift;
+      homepage = "https://github.com/minus7/redshift";
     };
   };
 }
diff --git a/pkgs/applications/misc/regextester/default.nix b/pkgs/applications/misc/regextester/default.nix
index 816a158c0319b..22f46eed7df47 100644
--- a/pkgs/applications/misc/regextester/default.nix
+++ b/pkgs/applications/misc/regextester/default.nix
@@ -51,7 +51,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A desktop application to test regular expressions interactively";
-    homepage = https://github.com/artemanufrij/regextester;
+    homepage = "https://github.com/artemanufrij/regextester";
     maintainers = with maintainers; [ samdroid-apps ];
     platforms = platforms.linux;
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/misc/robo3t/default.nix b/pkgs/applications/misc/robo3t/default.nix
index 00640be6c74a6..f42a58e0057da 100644
--- a/pkgs/applications/misc/robo3t/default.nix
+++ b/pkgs/applications/misc/robo3t/default.nix
@@ -70,7 +70,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://robomongo.org/;
+    homepage = "https://robomongo.org/";
     description = "Query GUI for mongodb";
     platforms = [ "x86_64-linux" ];
     license = stdenv.lib.licenses.gpl3;
diff --git a/pkgs/applications/misc/robomongo/default.nix b/pkgs/applications/misc/robomongo/default.nix
index 8df4e960c180e..ef0a304729747 100644
--- a/pkgs/applications/misc/robomongo/default.nix
+++ b/pkgs/applications/misc/robomongo/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://robomongo.org/;
+    homepage = "https://robomongo.org/";
     description = "Query GUI for mongodb";
     platforms = stdenv.lib.intersectLists stdenv.lib.platforms.linux stdenv.lib.platforms.x86_64;
     license = stdenv.lib.licenses.gpl3;
diff --git a/pkgs/applications/misc/rofi-menugen/default.nix b/pkgs/applications/misc/rofi-menugen/default.nix
index 2255089ab7e25..088ec29ae37b0 100644
--- a/pkgs/applications/misc/rofi-menugen/default.nix
+++ b/pkgs/applications/misc/rofi-menugen/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
   meta = with stdenv.lib; {
     description = "Generates menu based applications using rofi";
-    homepage = https://github.com/octotep/menugen;
+    homepage = "https://github.com/octotep/menugen";
     maintainers = with maintainers; [ ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/misc/rsibreak/default.nix b/pkgs/applications/misc/rsibreak/default.nix
index 6ee9966401b5f..eefc0a0c57721 100644
--- a/pkgs/applications/misc/rsibreak/default.nix
+++ b/pkgs/applications/misc/rsibreak/default.nix
@@ -22,7 +22,7 @@ in mkDerivation rec {
   meta = with lib; {
     description = "RSIBreak takes care of your health and regularly breaks your work to avoid repetitive strain injury (RSI)";
     license = licenses.gpl2;
-    homepage = https://www.kde.org/applications/utilities/rsibreak/;
+    homepage = "https://www.kde.org/applications/utilities/rsibreak/";
     maintainers = with maintainers; [ vandenoever ];
   };
 }
diff --git a/pkgs/applications/misc/rtv/default.nix b/pkgs/applications/misc/rtv/default.nix
index 20211ecb53b18..c4547e8751307 100644
--- a/pkgs/applications/misc/rtv/default.nix
+++ b/pkgs/applications/misc/rtv/default.nix
@@ -38,7 +38,7 @@ buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/michael-lazar/rtv;
+    homepage = "https://github.com/michael-lazar/rtv";
     description = "Browse Reddit from your Terminal";
     license = licenses.mit;
     maintainers = with maintainers; [ matthiasbeyer wedens ];
diff --git a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-font-size/default.nix b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-font-size/default.nix
index 4f4319af6cbdc..f81709b973900 100644
--- a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-font-size/default.nix
+++ b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-font-size/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Change the urxvt font size on the fly";
-    homepage = https://github.com/majutsushi/urxvt-font-size;
+    homepage = "https://github.com/majutsushi/urxvt-font-size";
     license = licenses.mit;
     maintainers = with maintainers; [ cstrahan ];
     platforms = with platforms; unix;
diff --git a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perl/default.nix b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perl/default.nix
index 13e005014f105..0c95acd72057f 100644
--- a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perl/default.nix
+++ b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perl/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Perl extensions for the rxvt-unicode terminal emulator";
-    homepage = https://github.com/effigies/urxvt-perl;
+    homepage = "https://github.com/effigies/urxvt-perl";
     license = licenses.gpl3;
     maintainers = with maintainers; [ cstrahan ];
     platforms = with platforms; unix;
diff --git a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perls/default.nix b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perls/default.nix
index dac0414107070..53bb938c3330d 100644
--- a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perls/default.nix
+++ b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-perls/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Perl extensions for the rxvt-unicode terminal emulator";
-    homepage = https://github.com/muennich/urxvt-perls;
+    homepage = "https://github.com/muennich/urxvt-perls";
     license = licenses.gpl2;
     maintainers = with maintainers; [ abbradar ];
     platforms = with platforms; unix;
diff --git a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-tabbedex/default.nix b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-tabbedex/default.nix
index 2982c02cce9ae..71a55f9293c66 100644
--- a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-tabbedex/default.nix
+++ b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-tabbedex/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Tabbed plugin for rxvt-unicode with many enhancements (mina86's fork)";
-    homepage = https://github.com/mina86/urxvt-tabbedex;
+    homepage = "https://github.com/mina86/urxvt-tabbedex";
     maintainers = with maintainers; [ abbradar ];
     platforms = with platforms; unix;
   };
diff --git a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-theme-switch/default.nix b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-theme-switch/default.nix
index ba8ec3a6e72ab..5a84a9b472a5b 100644
--- a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-theme-switch/default.nix
+++ b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-theme-switch/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "urxvt plugin that allows to switch color themes during runtime";
-    homepage = https://github.com/felixr/urxvt-theme-switch;
+    homepage = "https://github.com/felixr/urxvt-theme-switch";
     license = "CCBYNC";
     maintainers = with maintainers; [ ];
     platforms = with platforms; unix;
diff --git a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-vtwheel/default.nix b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-vtwheel/default.nix
index 3d0dec20c9a40..aebbedacef644 100644
--- a/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-vtwheel/default.nix
+++ b/pkgs/applications/misc/rxvt-unicode-plugins/urxvt-vtwheel/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Pass mouse wheel commands to secondary screens (screen, less, nano, etc)";
-    homepage = https://aur.archlinux.org/packages/urxvt-vtwheel;
+    homepage = "https://aur.archlinux.org/packages/urxvt-vtwheel";
     license = licenses.mit;
     maintainers = with maintainers; [ danbst ];
     platforms = with platforms; unix;
diff --git a/pkgs/applications/misc/rxvt/default.nix b/pkgs/applications/misc/rxvt/default.nix
index acdd21a1c2194..c71973da13beb 100644
--- a/pkgs/applications/misc/rxvt/default.nix
+++ b/pkgs/applications/misc/rxvt/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://rxvt.sourceforge.net/;
+    homepage = "http://rxvt.sourceforge.net/";
     description = "Colour vt102 terminal emulator with less features and lower memory consumption";
     longDescription = ''
       rxvt (acronym for our extended virtual terminal) is a terminal
diff --git a/pkgs/applications/misc/safeeyes/default.nix b/pkgs/applications/misc/safeeyes/default.nix
index 125170d36c276..f6bb7133d9996 100644
--- a/pkgs/applications/misc/safeeyes/default.nix
+++ b/pkgs/applications/misc/safeeyes/default.nix
@@ -61,7 +61,7 @@ in buildPythonApplication rec {
   doCheck = false; # no tests
 
   meta = {
-    homepage = http://slgobinath.github.io/SafeEyes;
+    homepage = "http://slgobinath.github.io/SafeEyes";
     description = "Protect your eyes from eye strain using this simple and beautiful, yet extensible break reminder. A Free and Open Source Linux alternative to EyeLeo";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ srghma ];
diff --git a/pkgs/applications/misc/sakura/default.nix b/pkgs/applications/misc/sakura/default.nix
index f646b4739154e..34a6142e83a18 100644
--- a/pkgs/applications/misc/sakura/default.nix
+++ b/pkgs/applications/misc/sakura/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A terminal emulator based on GTK and VTE";
-    homepage    = http://www.pleyades.net/david/projects/sakura;
+    homepage    = "http://www.pleyades.net/david/projects/sakura";
     license     = licenses.gpl2;
     maintainers = with maintainers; [ astsmtl codyopel ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/misc/sbagen/default.nix b/pkgs/applications/misc/sbagen/default.nix
index 6f38ba5662b5f..821fbe35ca1a1 100644
--- a/pkgs/applications/misc/sbagen/default.nix
+++ b/pkgs/applications/misc/sbagen/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Binaural sound generator";
-    homepage = http://uazu.net/sbagen;
+    homepage = "http://uazu.net/sbagen";
     license = "GPL";
     platforms = [ "i686-linux" ];
   };
diff --git a/pkgs/applications/misc/sc-im/default.nix b/pkgs/applications/misc/sc-im/default.nix
index c95eba48bdfb4..6ee4695d1717a 100644
--- a/pkgs/applications/misc/sc-im/default.nix
+++ b/pkgs/applications/misc/sc-im/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/andmarti1424/sc-im;
+    homepage = "https://github.com/andmarti1424/sc-im";
     description = "SC-IM - Spreadsheet Calculator Improvised - SC fork";
     license = licenses.bsdOriginal;
     maintainers = [ ];
diff --git a/pkgs/applications/misc/sdcv/default.nix b/pkgs/applications/misc/sdcv/default.nix
index 3cebcc0101f87..997786fc10724 100644
--- a/pkgs/applications/misc/sdcv/default.nix
+++ b/pkgs/applications/misc/sdcv/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE = "-D__GNU_LIBRARY__";
 
   meta = with stdenv.lib; {
-    homepage = https://dushistov.github.io/sdcv/;
+    homepage = "https://dushistov.github.io/sdcv/";
     description = "Console version of StarDict";
     maintainers = with maintainers; [ lovek323 ];
     license = licenses.gpl2;
diff --git a/pkgs/applications/misc/sent/default.nix b/pkgs/applications/misc/sent/default.nix
index 9bbae33b3e411..fe8598e49157d 100644
--- a/pkgs/applications/misc/sent/default.nix
+++ b/pkgs/applications/misc/sent/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A simple plaintext presentation tool";
-    homepage = https://tools.suckless.org/sent/;
+    homepage = "https://tools.suckless.org/sent/";
     license = licenses.isc;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/misc/sequelpro/default.nix b/pkgs/applications/misc/sequelpro/default.nix
index e81c0b99264e7..16a11342d8129 100644
--- a/pkgs/applications/misc/sequelpro/default.nix
+++ b/pkgs/applications/misc/sequelpro/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "MySQL database management for macOS";
-    homepage = http://www.sequelpro.com/;
+    homepage = "http://www.sequelpro.com/";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.darwin;
   };
diff --git a/pkgs/applications/misc/sigal/default.nix b/pkgs/applications/misc/sigal/default.nix
index 2b44b0398b55d..c0e255a36e377 100644
--- a/pkgs/applications/misc/sigal/default.nix
+++ b/pkgs/applications/misc/sigal/default.nix
@@ -27,7 +27,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with lib; {
     description = "Yet another simple static gallery generator";
-    homepage    = http://sigal.saimon.org/en/latest/index.html;
+    homepage    = "http://sigal.saimon.org/en/latest/index.html";
     license     = licenses.mit;
     maintainers = with maintainers; [ domenkozar matthiasbeyer ];
   };
diff --git a/pkgs/applications/misc/slade/default.nix b/pkgs/applications/misc/slade/default.nix
index d2d5e9548a0c3..e93baa997c86c 100644
--- a/pkgs/applications/misc/slade/default.nix
+++ b/pkgs/applications/misc/slade/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Doom editor";
-    homepage = http://slade.mancubus.net/;
+    homepage = "http://slade.mancubus.net/";
     license = licenses.gpl2;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = with maintainers; [ abbradar ];
diff --git a/pkgs/applications/misc/slade/git.nix b/pkgs/applications/misc/slade/git.nix
index 9ee30d347b0a8..1eaf907b7edfc 100644
--- a/pkgs/applications/misc/slade/git.nix
+++ b/pkgs/applications/misc/slade/git.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Doom editor";
-    homepage = http://slade.mancubus.net/;
+    homepage = "http://slade.mancubus.net/";
     license = licenses.gpl2Plus;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = with maintainers; [ ertes ];
diff --git a/pkgs/applications/misc/sleepyhead/default.nix b/pkgs/applications/misc/sleepyhead/default.nix
index a32709294175b..0753045cc4be7 100644
--- a/pkgs/applications/misc/sleepyhead/default.nix
+++ b/pkgs/applications/misc/sleepyhead/default.nix
@@ -7,7 +7,7 @@ in stdenv.mkDerivation {
   inherit name;
 
   src = fetchgit {
-    url = https://gitlab.com/sleepyhead/sleepyhead-code.git;
+    url = "https://gitlab.com/sleepyhead/sleepyhead-code.git";
     rev = "9e2329d8bca45693231b5e3dae80063717c24578";
     sha256 = "0448z8gyaxpgpnksg34lzmffj36jdpm0ir4xxa5gvzagkx0wk07h";
   };
@@ -29,7 +29,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://sleepyhead.jedimark.net/;
+    homepage = "https://sleepyhead.jedimark.net/";
     description = "Review and explore data produced by CPAP and related machines";
     longDescription = ''
       SleepyHead is cross platform, opensource sleep tracking program for reviewing CPAP and Oximetry data, which are devices used in the treatment of Sleep Disorders like Obstructive Sleep Apnea.
diff --git a/pkgs/applications/misc/slic3r/default.nix b/pkgs/applications/misc/slic3r/default.nix
index 1465b0ea05233..25019f76545e3 100644
--- a/pkgs/applications/misc/slic3r/default.nix
+++ b/pkgs/applications/misc/slic3r/default.nix
@@ -82,7 +82,7 @@ stdenv.mkDerivation rec {
       instructions for your 3D printer. It cuts the model into horizontal
       slices (layers), generates toolpaths to fill them and calculates the
       amount of material to be extruded.'';
-    homepage = https://slic3r.org/;
+    homepage = "https://slic3r.org/";
     license = licenses.agpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ bjornfor the-kenny ];
diff --git a/pkgs/applications/misc/slstatus/default.nix b/pkgs/applications/misc/slstatus/default.nix
index bfb3d010a3c7c..5c13cbf866940 100644
--- a/pkgs/applications/misc/slstatus/default.nix
+++ b/pkgs/applications/misc/slstatus/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   version = "unstable-2018-04-16";
 
   src = fetchgit {
-    url = https://git.suckless.org/slstatus;
+    url = "https://git.suckless.org/slstatus";
     rev = "97ef7c2a1d67bb2c9c379e657fbc8e35acd6aafb";
     sha256 = "1777hgl10imk0l2sgnqgbkfchv1mpxrd82ninzwp7f1rgwchz36v";
   };
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = {
-    homepage = https://tools.suckless.org/slstatus/;
+    homepage = "https://tools.suckless.org/slstatus/";
     description = "status monitor for window managers that use WM_NAME like dwm";
     license = licenses.isc;
     maintainers = with maintainers; [ geistesk ];
diff --git a/pkgs/applications/misc/solaar/default.nix b/pkgs/applications/misc/solaar/default.nix
index 722b0bc5077e7..d2a883c295dbd 100644
--- a/pkgs/applications/misc/solaar/default.nix
+++ b/pkgs/applications/misc/solaar/default.nix
@@ -39,7 +39,7 @@ python3Packages.buildPythonApplication rec {
       To be able to use it, make sure you have access to /dev/hidraw* files.
     '';
     license = licenses.gpl2;
-    homepage = https://pwr-solaar.github.io/Solaar/;
+    homepage = "https://pwr-solaar.github.io/Solaar/";
     platforms = platforms.linux;
     maintainers = with maintainers; [ spinus ysndr ];
   };
diff --git a/pkgs/applications/misc/spacefm/default.nix b/pkgs/applications/misc/spacefm/default.nix
index 47e13fa250855..45dc487c8ed11 100644
--- a/pkgs/applications/misc/spacefm/default.nix
+++ b/pkgs/applications/misc/spacefm/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
       with built-in VFS, udev- or HAL-based device manager,
       customizable menu system, and bash integration
     '';
-    homepage = http://ignorantguru.github.io/spacefm/;
+    homepage = "http://ignorantguru.github.io/spacefm/";
     platforms = platforms.linux;
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ jagajaga obadz ];
diff --git a/pkgs/applications/misc/sqliteman/default.nix b/pkgs/applications/misc/sqliteman/default.nix
index 103075024dd5f..27d5610956d03 100644
--- a/pkgs/applications/misc/sqliteman/default.nix
+++ b/pkgs/applications/misc/sqliteman/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A simple but powerful Sqlite3 GUI database manager";
-    homepage = http://sqliteman.yarpen.cz/;
+    homepage = "http://sqliteman.yarpen.cz/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.eikek ];
diff --git a/pkgs/applications/misc/ssocr/default.nix b/pkgs/applications/misc/ssocr/default.nix
index bb1655b44632f..c52573785ef66 100644
--- a/pkgs/applications/misc/ssocr/default.nix
+++ b/pkgs/applications/misc/ssocr/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Seven Segment Optical Character Recognition";
-    homepage = https://github.com/auerswal/ssocr;
+    homepage = "https://github.com/auerswal/ssocr";
     license = licenses.gpl3;
     maintainers = [ maintainers.kroell ];
   };
diff --git a/pkgs/applications/misc/st/default.nix b/pkgs/applications/misc/st/default.nix
index 47d7279a47fa7..bc70aad8da923 100644
--- a/pkgs/applications/misc/st/default.nix
+++ b/pkgs/applications/misc/st/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://st.suckless.org/;
+    homepage = "https://st.suckless.org/";
     description = "Simple Terminal for X from Suckless.org Community";
     license = licenses.mit;
     maintainers = with maintainers; [andsild];
diff --git a/pkgs/applications/misc/st/xst.nix b/pkgs/applications/misc/st/xst.nix
index 9407243c6a21f..3e29abee5d65d 100644
--- a/pkgs/applications/misc/st/xst.nix
+++ b/pkgs/applications/misc/st/xst.nix
@@ -23,7 +23,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://github.com/neeasade/xst;
+    homepage = "https://github.com/neeasade/xst";
     description = "Simple terminal fork that can load config from Xresources";
     license = licenses.mit;
     maintainers = [ maintainers.vyp ];
diff --git a/pkgs/applications/misc/stag/default.nix b/pkgs/applications/misc/stag/default.nix
index ebb50e685da73..6b4bf19463061 100644
--- a/pkgs/applications/misc/stag/default.nix
+++ b/pkgs/applications/misc/stag/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "stag-1.0";
 
   src = fetchgit {
-    url = https://github.com/seenaburns/stag.git;
+    url = "https://github.com/seenaburns/stag.git";
     rev = "90e2964959ea8242349250640d24cee3d1966ad6";
     sha256 = "1yrzjhcwrxrxq5jj695wvpgb0pz047m88yq5n5ymkcw5qr78fy1v";
   };
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://github.com/seenaburns/stag;
+    homepage = "https://github.com/seenaburns/stag";
     description = "Terminal streaming bar graph passed through stdin";
     license = stdenv.lib.licenses.bsdOriginal;
     maintainers = [ stdenv.lib.maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/stog/default.nix b/pkgs/applications/misc/stog/default.nix
index 8c47de3afac03..038d04adeaa84 100644
--- a/pkgs/applications/misc/stog/default.nix
+++ b/pkgs/applications/misc/stog/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "XML documents and web site compiler";
-    homepage = https://www.good-eris.net/stog;
+    homepage = "https://www.good-eris.net/stog";
     license = licenses.lgpl3;
     platforms = ocaml.meta.platforms or [];
     maintainers = with maintainers; [ regnat ];
diff --git a/pkgs/applications/misc/stretchly/default.nix b/pkgs/applications/misc/stretchly/default.nix
index 9769045b9ce59..87e8316c2c4f4 100644
--- a/pkgs/applications/misc/stretchly/default.nix
+++ b/pkgs/applications/misc/stretchly/default.nix
@@ -53,8 +53,8 @@ stdenv.mkDerivation rec {
       seconds every 10 minutes. Every 30 minutes, it displays a window
       containing an idea for a longer 5 minute break.
     '';
-    homepage = https://hovancik.net/stretchly;
-    downloadPage = https://hovancik.net/stretchly/downloads/;
+    homepage = "https://hovancik.net/stretchly";
+    downloadPage = "https://hovancik.net/stretchly/downloads/";
     license = licenses.bsd2;
     maintainers = with maintainers; [ cdepillabout ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/stupidterm/default.nix b/pkgs/applications/misc/stupidterm/default.nix
index b786b34e9553b..0a6e947f15c28 100644
--- a/pkgs/applications/misc/stupidterm/default.nix
+++ b/pkgs/applications/misc/stupidterm/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Simple wrapper around the VTE terminal emulator widget for GTK";
-    homepage = https://github.com/esmil/stupidterm;
+    homepage = "https://github.com/esmil/stupidterm";
     license = licenses.lgpl3Plus;
     maintainers = [ maintainers.etu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/styx/default.nix b/pkgs/applications/misc/styx/default.nix
index 340b59d5ff23a..67f48d67f8071 100644
--- a/pkgs/applications/misc/styx/default.nix
+++ b/pkgs/applications/misc/styx/default.nix
@@ -63,8 +63,8 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description  = "Nix based static site generator";
     maintainers  = with maintainers; [ ericsagnes ];
-    homepage     = https://styx-static.github.io/styx-site/;
-    downloadPage = https://github.com/styx-static/styx/;
+    homepage     = "https://styx-static.github.io/styx-site/";
+    downloadPage = "https://github.com/styx-static/styx/";
     platforms    = platforms.all;
     license      = licenses.mit;
   };
diff --git a/pkgs/applications/misc/subsurface/default.nix b/pkgs/applications/misc/subsurface/default.nix
index 960b7b9eeef5e..040a269d62f24 100644
--- a/pkgs/applications/misc/subsurface/default.nix
+++ b/pkgs/applications/misc/subsurface/default.nix
@@ -22,7 +22,7 @@ let
     enableParallelBuilding = true;
 
     meta = with stdenv.lib; {
-      homepage = http://www.libdivecomputer.org;
+      homepage = "http://www.libdivecomputer.org";
       description = "A cross-platform and open source library for communication with dive computers from various manufacturers";
       maintainers = with maintainers; [ mguentner ];
       license = licenses.lgpl21;
@@ -100,7 +100,7 @@ in stdenv.mkDerivation {
       conveniently be entered using a map interface), logging of equipment used and
       names of other divers, and lets users rate dives and provide additional notes.
     '';
-    homepage = https://subsurface-divelog.org;
+    homepage = "https://subsurface-divelog.org";
     license = licenses.gpl2;
     maintainers = with maintainers; [ mguentner ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/super_user_spark/default.nix b/pkgs/applications/misc/super_user_spark/default.nix
index 8102375479be5..dd1218282d85f 100644
--- a/pkgs/applications/misc/super_user_spark/default.nix
+++ b/pkgs/applications/misc/super_user_spark/default.nix
@@ -27,6 +27,6 @@ mkDerivation {
   jailbreak = true;
   description = "Configure your dotfile deployment with a DSL";
   license = stdenv.lib.licenses.mit;
-  homepage = https://github.com/NorfairKing/super-user-spark;
+  homepage = "https://github.com/NorfairKing/super-user-spark";
   maintainers = [ stdenv.lib.maintainers.badi ];
 }
diff --git a/pkgs/applications/misc/sweethome3d/default.nix b/pkgs/applications/misc/sweethome3d/default.nix
index 76a62d1762c27..7f094607859cf 100644
--- a/pkgs/applications/misc/sweethome3d/default.nix
+++ b/pkgs/applications/misc/sweethome3d/default.nix
@@ -59,7 +59,7 @@ let
     dontStrip = true;
 
     meta = {
-      homepage = http://www.sweethome3d.com/index.jsp;
+      homepage = "http://www.sweethome3d.com/index.jsp";
       inherit description;
       inherit license;
       maintainers = [ stdenv.lib.maintainers.edwtjo ];
diff --git a/pkgs/applications/misc/sweethome3d/editors.nix b/pkgs/applications/misc/sweethome3d/editors.nix
index 1d3f1a41e162d..ec759572443cb 100644
--- a/pkgs/applications/misc/sweethome3d/editors.nix
+++ b/pkgs/applications/misc/sweethome3d/editors.nix
@@ -47,7 +47,7 @@ let
     dontStrip = true;
 
     meta = {
-      homepage = http://www.sweethome3d.com/index.jsp;
+      homepage = "http://www.sweethome3d.com/index.jsp";
       inherit description;
       inherit license;
       maintainers = [ stdenv.lib.maintainers.edwtjo ];
diff --git a/pkgs/applications/misc/synapse/default.nix b/pkgs/applications/misc/synapse/default.nix
index c12f5b176790d..751c0a48f5b37 100644
--- a/pkgs/applications/misc/synapse/default.nix
+++ b/pkgs/applications/misc/synapse/default.nix
@@ -29,7 +29,7 @@ in stdenv.mkDerivation rec {
       the Zeitgeist engine
     '';
     description = "Semantic launcher to start applications and find relevant files";
-    homepage = https://launchpad.net/synapse-project;
+    homepage = "https://launchpad.net/synapse-project";
     license = licenses.gpl3;
     maintainers = with maintainers; [ mahe ];
     platforms = with platforms; all;
diff --git a/pkgs/applications/misc/syncthing-tray/default.nix b/pkgs/applications/misc/syncthing-tray/default.nix
index a07fe0c75103b..38826b7735fb9 100644
--- a/pkgs/applications/misc/syncthing-tray/default.nix
+++ b/pkgs/applications/misc/syncthing-tray/default.nix
@@ -20,7 +20,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Simple application tray for syncthing";
-    homepage = https://github.com/alex2108/syncthing-tray;
+    homepage = "https://github.com/alex2108/syncthing-tray";
     license = licenses.mit;
     maintainers = with maintainers; [ nickhu ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/synergy/default.nix b/pkgs/applications/misc/synergy/default.nix
index 90645c41d2592..bb922f3ca5b28 100644
--- a/pkgs/applications/misc/synergy/default.nix
+++ b/pkgs/applications/misc/synergy/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Share one mouse and keyboard between multiple computers";
-    homepage = http://synergy-project.org/;
+    homepage = "http://synergy-project.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ aszlig enzime ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/tabula/default.nix b/pkgs/applications/misc/tabula/default.nix
index fbb1832735bea..1b29118c9b14f 100644
--- a/pkgs/applications/misc/tabula/default.nix
+++ b/pkgs/applications/misc/tabula/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
       out of PDF files. Tabula allows you to extract that data into a CSV or
       Microsoft Excel spreadsheet using a simple, easy-to-use interface.
     '';
-    homepage = https://tabula.technology/;
+    homepage = "https://tabula.technology/";
     license = licenses.mit;
     maintainers = [ maintainers.dpaetzel ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/taizen/default.nix b/pkgs/applications/misc/taizen/default.nix
index bf9770acacd8b..993606d39c0e3 100644
--- a/pkgs/applications/misc/taizen/default.nix
+++ b/pkgs/applications/misc/taizen/default.nix
@@ -17,7 +17,7 @@ rustPlatform.buildRustPackage rec {
   cargoSha256 = "0chrgwm97y1a3gj218x25yqk1y1h74a6gzyxjdm023msvs58nkni";
 
   meta = with lib; {
-    homepage = https://crates.io/crates/taizen;
+    homepage = "https://crates.io/crates/taizen";
     license = licenses.mit;
     description = "curses based mediawiki browser";
     maintainers = with maintainers; [ ma27 ];
diff --git a/pkgs/applications/misc/taskjuggler/2.x/default.nix b/pkgs/applications/misc/taskjuggler/2.x/default.nix
index a0dc7b7c71e31..a1d04a13af85a 100644
--- a/pkgs/applications/misc/taskjuggler/2.x/default.nix
+++ b/pkgs/applications/misc/taskjuggler/2.x/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "kde_locale=\${out}/share/locale" ];
 
   meta = {
-    homepage = http://www.taskjuggler.org;
+    homepage = "http://www.taskjuggler.org";
     license = stdenv.lib.licenses.gpl2;
     description = "Project management tool";
     longDescription = ''
diff --git a/pkgs/applications/misc/taskjuggler/3.x/default.nix b/pkgs/applications/misc/taskjuggler/3.x/default.nix
index 23252d0c48073..6b3ef60d6382e 100644
--- a/pkgs/applications/misc/taskjuggler/3.x/default.nix
+++ b/pkgs/applications/misc/taskjuggler/3.x/default.nix
@@ -8,7 +8,7 @@ bundlerEnv {
 
   meta = {
     description = "A modern and powerful project management tool";
-    homepage    = http://taskjuggler.org/;
+    homepage    = "http://taskjuggler.org/";
     license     = lib.licenses.gpl2;
     platforms   = lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/taskjuggler/default.nix b/pkgs/applications/misc/taskjuggler/default.nix
index 838cc199a6cad..64753397833a6 100644
--- a/pkgs/applications/misc/taskjuggler/default.nix
+++ b/pkgs/applications/misc/taskjuggler/default.nix
@@ -13,7 +13,7 @@ bundlerApp {
 
   meta = with lib; {
     description = "A modern and powerful project management tool";
-    homepage    = http://taskjuggler.org/;
+    homepage    = "http://taskjuggler.org/";
     license     = licenses.gpl2;
     platforms   = platforms.unix;
     maintainers = with maintainers; [ manveru nicknovitski ];
diff --git a/pkgs/applications/misc/tasknc/default.nix b/pkgs/applications/misc/tasknc/default.nix
index 0450cb40a555b..46378aec33aed 100644
--- a/pkgs/applications/misc/tasknc/default.nix
+++ b/pkgs/applications/misc/tasknc/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/lharding/tasknc;
+    homepage = "https://github.com/lharding/tasknc";
     description = "A ncurses wrapper around taskwarrior";
     maintainers = with maintainers; [ matthiasbeyer infinisil ];
     platforms = platforms.linux; # Cannot test others
diff --git a/pkgs/applications/misc/taskopen/default.nix b/pkgs/applications/misc/taskopen/default.nix
index 847092356d28b..a60ca997ee033 100644
--- a/pkgs/applications/misc/taskopen/default.nix
+++ b/pkgs/applications/misc/taskopen/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Script for taking notes and open urls with taskwarrior";
-    homepage = https://github.com/ValiValpas/taskopen;
+    homepage = "https://github.com/ValiValpas/taskopen";
     platforms = platforms.linux;
     license = stdenv.lib.licenses.free ;
     maintainers = [ maintainers.winpat ];
diff --git a/pkgs/applications/misc/tasksh/default.nix b/pkgs/applications/misc/tasksh/default.nix
index 931a27fbeff69..4c577049f44a3 100644
--- a/pkgs/applications/misc/tasksh/default.nix
+++ b/pkgs/applications/misc/tasksh/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "REPL for taskwarrior";
-    homepage = http://tasktools.org;
+    homepage = "http://tasktools.org";
     license = licenses.mit;
     maintainers = with maintainers; [ matthiasbeyer ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/taskwarrior/default.nix b/pkgs/applications/misc/taskwarrior/default.nix
index ba919fbc62674..67f2fd8927bdf 100644
--- a/pkgs/applications/misc/taskwarrior/default.nix
+++ b/pkgs/applications/misc/taskwarrior/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Highly flexible command-line tool to manage TODO lists";
-    homepage = https://taskwarrior.org;
+    homepage = "https://taskwarrior.org";
     license = licenses.mit;
     maintainers = with maintainers; [ marcweber ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/misc/tdrop/default.nix b/pkgs/applications/misc/tdrop/default.nix
index 547eea4f2d23e..020298a0c5237 100644
--- a/pkgs/applications/misc/tdrop/default.nix
+++ b/pkgs/applications/misc/tdrop/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A Glorified WM-Independent Dropdown Creator";
-    homepage = https://github.com/noctuid/tdrop;
+    homepage = "https://github.com/noctuid/tdrop";
     license = licenses.bsd2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ wedens ];
diff --git a/pkgs/applications/misc/termdown/default.nix b/pkgs/applications/misc/termdown/default.nix
index 94eacb1fe0671..5ccdbbbb6b422 100644
--- a/pkgs/applications/misc/termdown/default.nix
+++ b/pkgs/applications/misc/termdown/default.nix
@@ -20,7 +20,7 @@ buildPythonApplication rec {
   meta = with stdenv.lib; {
     description     = "Starts a countdown to or from TIMESPEC";
     longDescription = "Countdown timer and stopwatch in your terminal";
-    homepage        = https://github.com/trehn/termdown;
+    homepage        = "https://github.com/trehn/termdown";
     license         = licenses.gpl3;
     platforms       = platforms.all;
   };
diff --git a/pkgs/applications/misc/terminal-notifier/default.nix b/pkgs/applications/misc/terminal-notifier/default.nix
index 00300e65abb45..cde53ef41654b 100644
--- a/pkgs/applications/misc/terminal-notifier/default.nix
+++ b/pkgs/applications/misc/terminal-notifier/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     maintainers = with maintainers; [ cstrahan ];
-    homepage = https://github.com/julienXX/terminal-notifier;
+    homepage = "https://github.com/julienXX/terminal-notifier";
     license = licenses.mit;
     platforms  = platforms.darwin;
   };
diff --git a/pkgs/applications/misc/terminal-parrot/default.nix b/pkgs/applications/misc/terminal-parrot/default.nix
index ba898932f06cc..68241d79850d8 100644
--- a/pkgs/applications/misc/terminal-parrot/default.nix
+++ b/pkgs/applications/misc/terminal-parrot/default.nix
@@ -15,7 +15,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "Shows colorful, animated party parrot in your terminial";
-    homepage = https://github.com/jmhobbs/terminal-parrot;
+    homepage = "https://github.com/jmhobbs/terminal-parrot";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = [ maintainers.heel ];
diff --git a/pkgs/applications/misc/terminator/default.nix b/pkgs/applications/misc/terminator/default.nix
index d09c98b670905..ea73d5cbb68a3 100644
--- a/pkgs/applications/misc/terminator/default.nix
+++ b/pkgs/applications/misc/terminator/default.nix
@@ -33,7 +33,7 @@ python2.pkgs.buildPythonApplication rec {
       quadkonsole, etc. in that the main focus is arranging terminals in grids
       (tabs is the most common default method, which Terminator also supports).
     '';
-    homepage = https://gnometerminator.blogspot.no/p/introduction.html;
+    homepage = "https://gnometerminator.blogspot.no/p/introduction.html";
     license = licenses.gpl2;
     maintainers = with maintainers; [ bjornfor ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/terminus/default.nix b/pkgs/applications/misc/terminus/default.nix
index fce46d120de56..4c38e530247e8 100644
--- a/pkgs/applications/misc/terminus/default.nix
+++ b/pkgs/applications/misc/terminus/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   dontPatchELF = true;
   meta = with lib; {
     description = "A terminal for a more modern age";
-    homepage    = https://eugeny.github.io/terminus/;
+    homepage    = "https://eugeny.github.io/terminus/";
     maintainers = with maintainers; [ jlesquembre ];
     license     = licenses.mit;
     platforms   = [ "x86_64-linux" ];
diff --git a/pkgs/applications/misc/termite/default.nix b/pkgs/applications/misc/termite/default.nix
index 2a610edde0346..63565e207f77f 100644
--- a/pkgs/applications/misc/termite/default.nix
+++ b/pkgs/applications/misc/termite/default.nix
@@ -77,7 +77,7 @@ in stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A simple VTE-based terminal";
     license = licenses.lgpl2Plus;
-    homepage = https://github.com/thestinger/termite/;
+    homepage = "https://github.com/thestinger/termite/";
     maintainers = with maintainers; [ koral ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/misc/teseq/default.nix b/pkgs/applications/misc/teseq/default.nix
index b176459198242..1ba22911c51fd 100644
--- a/pkgs/applications/misc/teseq/default.nix
+++ b/pkgs/applications/misc/teseq/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   };
 
   meta = {
-    homepage = https://www.gnu.org/software/teseq/;
+    homepage = "https://www.gnu.org/software/teseq/";
     description = "Escape sequence illuminator";
     license = stdenv.lib.licenses.gpl3;
 
diff --git a/pkgs/applications/misc/thinking-rock/default.nix b/pkgs/applications/misc/thinking-rock/default.nix
index c057fde95d7f8..fd6065010fb6a 100644
--- a/pkgs/applications/misc/thinking-rock/default.nix
+++ b/pkgs/applications/misc/thinking-rock/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "thinkingrock-binary-2.2.1";
 
   src = fetchurl {
-    url = mirror://sourceforge/thinkingrock/ThinkingRock/TR%202.2.1/tr-2.2.1.tar.gz;
+    url = "mirror://sourceforge/thinkingrock/ThinkingRock/TR%202.2.1/tr-2.2.1.tar.gz";
     sha256 = "0hnwvvyc8miiz8w2g4iy7s4rgfy0kfbncgbgfzpsq6nrzq334kgm";
   };
 
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Task management system";
-    homepage = http://www.thinkingrock.com.au/;
+    homepage = "http://www.thinkingrock.com.au/";
     license = "CDDL"; # Common Development and Distribution License
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/tilix/default.nix b/pkgs/applications/misc/tilix/default.nix
index 2fa193fc8e7a0..4707685e3dab3 100644
--- a/pkgs/applications/misc/tilix/default.nix
+++ b/pkgs/applications/misc/tilix/default.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Tiling terminal emulator following the Gnome Human Interface Guidelines";
-    homepage = https://gnunn1.github.io/tilix-web;
+    homepage = "https://gnunn1.github.io/tilix-web";
     license = licenses.mpl20;
     maintainers = with maintainers; [ midchildan worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/tint2/default.nix b/pkgs/applications/misc/tint2/default.nix
index c85feff43603a..dc991402eec63 100644
--- a/pkgs/applications/misc/tint2/default.nix
+++ b/pkgs/applications/misc/tint2/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://gitlab.com/o9000/tint2;
+    homepage = "https://gitlab.com/o9000/tint2";
     description = "Simple panel/taskbar unintrusive and light (memory, cpu, aestetic)";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/tnef/default.nix b/pkgs/applications/misc/tnef/default.nix
index bbd3073a4d8ee..40505c4fdbea4 100644
--- a/pkgs/applications/misc/tnef/default.nix
+++ b/pkgs/applications/misc/tnef/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
       The TNEF program allows one to unpack the attachments which were encapsulated into the TNEF attachment. Thus alleviating the need to use Microsoft Outlook to view the attachment.
     '';
-    homepage = https://github.com/verdammelt/tnef;
+    homepage = "https://github.com/verdammelt/tnef";
     license = licenses.gpl2;
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/todoist/default.nix b/pkgs/applications/misc/todoist/default.nix
index 74b2b770215c9..1e82ac2cccbe6 100644
--- a/pkgs/applications/misc/todoist/default.nix
+++ b/pkgs/applications/misc/todoist/default.nix
@@ -14,7 +14,7 @@ buildGoModule rec {
   modSha256 = "1nnp5ijz4n34gc97rar4wlvlbx21ndpjyb2mc6gxdk1wzx3mgswp";
 
   meta = {
-    homepage = https://github.com/sachaos/todoist;
+    homepage = "https://github.com/sachaos/todoist";
     description = "Todoist CLI Client";
     license = lib.licenses.mit;
     platforms = lib.platforms.unix;
diff --git a/pkgs/applications/misc/toggldesktop/default.nix b/pkgs/applications/misc/toggldesktop/default.nix
index a0d663efb3ccd..410c17be803af 100644
--- a/pkgs/applications/misc/toggldesktop/default.nix
+++ b/pkgs/applications/misc/toggldesktop/default.nix
@@ -140,7 +140,7 @@ buildEnv {
 
   meta = with lib; {
     description = "Client for Toggl time tracking service";
-    homepage = https://github.com/toggl/toggldesktop;
+    homepage = "https://github.com/toggl/toggldesktop";
     license = licenses.bsd3;
     maintainers = with maintainers; [ yegortimoshenko ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/tomboy/default.nix b/pkgs/applications/misc/tomboy/default.nix
index d8a6f86f104b6..ff4faf139e6cd 100644
--- a/pkgs/applications/misc/tomboy/default.nix
+++ b/pkgs/applications/misc/tomboy/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://wiki.gnome.org/Apps/Tomboy;
+    homepage = "https://wiki.gnome.org/Apps/Tomboy";
     description = "A simple note-taking application with synchronization";
     platforms = platforms.linux;
     license = stdenv.lib.licenses.lgpl2;
diff --git a/pkgs/applications/misc/tootle/default.nix b/pkgs/applications/misc/tootle/default.nix
index e619ab053e7d0..904782f3e1f85 100644
--- a/pkgs/applications/misc/tootle/default.nix
+++ b/pkgs/applications/misc/tootle/default.nix
@@ -70,7 +70,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple Mastodon client designed for elementary OS";
-    homepage = https://github.com/bleakgrey/tootle;
+    homepage = "https://github.com/bleakgrey/tootle";
     license = licenses.gpl3;
     maintainers = with maintainers; [ dtzWill ];
   };
diff --git a/pkgs/applications/misc/tpmmanager/default.nix b/pkgs/applications/misc/tpmmanager/default.nix
index b955711d0030f..2bbb95d01ae7d 100644
--- a/pkgs/applications/misc/tpmmanager/default.nix
+++ b/pkgs/applications/misc/tpmmanager/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = https://projects.sirrix.com/trac/tpmmanager;
+    homepage = "https://projects.sirrix.com/trac/tpmmanager";
     description = "Tool for managing the TPM";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ tstrobel ];
diff --git a/pkgs/applications/misc/translate-shell/default.nix b/pkgs/applications/misc/translate-shell/default.nix
index a2f6980abd9e2..e418ee69b95be 100644
--- a/pkgs/applications/misc/translate-shell/default.nix
+++ b/pkgs/applications/misc/translate-shell/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.soimort.org/translate-shell;
+    homepage = "https://www.soimort.org/translate-shell";
     description = "Command-line translator using Google Translate, Bing Translator, Yandex.Translate, and Apertium";
     license = licenses.unlicense;
     maintainers = with maintainers; [ ebzzry infinisil ];
diff --git a/pkgs/applications/misc/tthsum/default.nix b/pkgs/applications/misc/tthsum/default.nix
index 76ac3f75b2660..792b80d04629e 100644
--- a/pkgs/applications/misc/tthsum/default.nix
+++ b/pkgs/applications/misc/tthsum/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
       The specification of the THEX algorithm is at:
       http://adc.sourceforge.net/draft-jchapweske-thex-02.html
     '';
-    homepage = http://tthsum.devs.nu/;
+    homepage = "http://tthsum.devs.nu/";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.ebzzry ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/misc/tvbrowser/bin.nix b/pkgs/applications/misc/tvbrowser/bin.nix
index 38865ca4f3d96..68d25e4e3de7a 100644
--- a/pkgs/applications/misc/tvbrowser/bin.nix
+++ b/pkgs/applications/misc/tvbrowser/bin.nix
@@ -48,7 +48,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Electronic TV Program Guide";
-    homepage = https://www.tvbrowser.org/;
+    homepage = "https://www.tvbrowser.org/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/misc/twmn/default.nix b/pkgs/applications/misc/twmn/default.nix
index cd58219721c97..69f58b828c46e 100644
--- a/pkgs/applications/misc/twmn/default.nix
+++ b/pkgs/applications/misc/twmn/default.nix
@@ -28,7 +28,7 @@ mkDerivation {
 
   meta = {
     description = "A notification system for tiling window managers";
-    homepage = https://github.com/sboli/twmn;
+    homepage = "https://github.com/sboli/twmn";
     platforms = with lib.platforms; linux;
     maintainers = [ lib.maintainers.matejc ];
     license = lib.licenses.lgpl3;
diff --git a/pkgs/applications/misc/udevil/default.nix b/pkgs/applications/misc/udevil/default.nix
index 3cc4fcc1517b5..dbf721888df6d 100644
--- a/pkgs/applications/misc/udevil/default.nix
+++ b/pkgs/applications/misc/udevil/default.nix
@@ -2,7 +2,7 @@
 stdenv.mkDerivation {
   name = "udevil-0.4.4";
   src = fetchurl {
-    url = https://github.com/IgnorantGuru/udevil/archive/0.4.4.tar.gz;
+    url = "https://github.com/IgnorantGuru/udevil/archive/0.4.4.tar.gz";
     sha256 = "0z1bhaayambrcn7bgnrqk445k50ifabmw8q4i9qj49nnbcvxhbxd";
   };
   nativeBuildInputs = [ pkgconfig ];
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   patches = [ ./device-info-sys-stat.patch ];
   meta = {
     description = "A command line Linux program which mounts and unmounts removable devices without a password, shows device info, and monitors device changes";
-    homepage = https://ignorantguru.github.io/udevil/;
+    homepage = "https://ignorantguru.github.io/udevil/";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl3;
   };
diff --git a/pkgs/applications/misc/udiskie/default.nix b/pkgs/applications/misc/udiskie/default.nix
index 7b2c499749739..aa2246603f33b 100644
--- a/pkgs/applications/misc/udiskie/default.nix
+++ b/pkgs/applications/misc/udiskie/default.nix
@@ -56,7 +56,7 @@ python3Packages.buildPythonApplication rec {
   meta = with stdenv.lib; {
     description = "Removable disk automounter for udisks";
     license = licenses.mit;
-    homepage = https://github.com/coldfix/udiskie;
+    homepage = "https://github.com/coldfix/udiskie";
     maintainers = with maintainers; [ AndersonTorres ];
   };
 }
diff --git a/pkgs/applications/misc/ulauncher/default.nix b/pkgs/applications/misc/ulauncher/default.nix
index 5b77e13d7243f..93ef9f3da4fb3 100644
--- a/pkgs/applications/misc/ulauncher/default.nix
+++ b/pkgs/applications/misc/ulauncher/default.nix
@@ -106,7 +106,7 @@ python3Packages.buildPythonApplication rec  {
 
   meta = with stdenv.lib; {
     description = "A fast application launcher for Linux, written in Python, using GTK";
-    homepage = https://ulauncher.io/;
+    homepage = "https://ulauncher.io/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ aaronjanse worldofpeace ];
diff --git a/pkgs/applications/misc/urlscan/default.nix b/pkgs/applications/misc/urlscan/default.nix
index 791075e4dd9b7..ef4684689b8ae 100644
--- a/pkgs/applications/misc/urlscan/default.nix
+++ b/pkgs/applications/misc/urlscan/default.nix
@@ -17,7 +17,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Mutt and terminal url selector (similar to urlview)";
-    homepage = https://github.com/firecat53/urlscan;
+    homepage = "https://github.com/firecat53/urlscan";
     license = licenses.gpl2;
     maintainers = with maintainers; [ dpaetzel jfrankenau ];
   };
diff --git a/pkgs/applications/misc/urlview/default.nix b/pkgs/applications/misc/urlview/default.nix
index ad29c8f94d8b9..6430a1bc7196b 100644
--- a/pkgs/applications/misc/urlview/default.nix
+++ b/pkgs/applications/misc/urlview/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Extract URLs from text";
-    homepage = https://packages.qa.debian.org/u/urlview.html;
+    homepage = "https://packages.qa.debian.org/u/urlview.html";
     license = licenses.gpl2;
     platforms = with platforms; linux ++ darwin;
     maintainers = with maintainers; [ ma27 ];
diff --git a/pkgs/applications/misc/usync/default.nix b/pkgs/applications/misc/usync/default.nix
index 344c07d845be1..9234d8ad202aa 100644
--- a/pkgs/applications/misc/usync/default.nix
+++ b/pkgs/applications/misc/usync/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ebzzry/usync;
+    homepage = "https://github.com/ebzzry/usync";
     description = "A simple site-to-site synchronization tool";
     license = licenses.mit;
     maintainers = [ maintainers.ebzzry ];
diff --git a/pkgs/applications/misc/valentina/default.nix b/pkgs/applications/misc/valentina/default.nix
index 5a12465c4c494..6a1dd06de32c1 100644
--- a/pkgs/applications/misc/valentina/default.nix
+++ b/pkgs/applications/misc/valentina/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An open source sewing pattern drafting software";
-    homepage = https://valentinaproject.bitbucket.io/;
+    homepage = "https://valentinaproject.bitbucket.io/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/misc/variety/default.nix b/pkgs/applications/misc/variety/default.nix
index 6d8da4a1007a3..4241f9153293a 100644
--- a/pkgs/applications/misc/variety/default.nix
+++ b/pkgs/applications/misc/variety/default.nix
@@ -66,7 +66,7 @@ buildPythonApplication rec {
 
   meta = with lib; {
     description = "A wallpaper manager for Linux systems. It supports numerous desktops and wallpaper sources, including local files and online services: Flickr, Wallhaven, Unsplash, and more";
-    homepage = https://github.com/varietywalls/variety;
+    homepage = "https://github.com/varietywalls/variety";
     license = licenses.gpl3;
     maintainers = [ maintainers.zfnmxt ];
   };
diff --git a/pkgs/applications/misc/vcal/default.nix b/pkgs/applications/misc/vcal/default.nix
index b25e7f76cefed..9519e033473e3 100644
--- a/pkgs/applications/misc/vcal/default.nix
+++ b/pkgs/applications/misc/vcal/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Parser for VCalendar and ICalendar files, usable from the command line";
-    homepage = https://waynemorrison.com/software/;
+    homepage = "https://waynemorrison.com/software/";
     license = licenses.asl20;
     maintainers = with maintainers; [ peterhoeg ];
   };
diff --git a/pkgs/applications/misc/veracrypt/default.nix b/pkgs/applications/misc/veracrypt/default.nix
index fe1de349cff92..07e0a046ac539 100644
--- a/pkgs/applications/misc/veracrypt/default.nix
+++ b/pkgs/applications/misc/veracrypt/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Free Open-Source filesystem on-the-fly encryption";
-    homepage = https://www.veracrypt.fr/;
+    homepage = "https://www.veracrypt.fr/";
     license = [ licenses.asl20 /* or */ "TrueCrypt License version 3.0" ];
     maintainers = with maintainers; [ dsferruzza ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/verbiste/default.nix b/pkgs/applications/misc/verbiste/default.nix
index 680573fd304d1..a322756c157f0 100644
--- a/pkgs/applications/misc/verbiste/default.nix
+++ b/pkgs/applications/misc/verbiste/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://sarrazip.com/dev/verbiste.html;
+    homepage = "http://sarrazip.com/dev/verbiste.html";
     description = "French and Italian verb conjugator";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/vifm/default.nix b/pkgs/applications/misc/vifm/default.nix
index f71e7a7a9602d..d939beb443e1d 100644
--- a/pkgs/applications/misc/vifm/default.nix
+++ b/pkgs/applications/misc/vifm/default.nix
@@ -37,7 +37,7 @@ in stdenv.mkDerivation rec {
     platforms = if mediaSupport then platforms.linux else platforms.unix;
     license = licenses.gpl2;
     downloadPage = "https://vifm.info/downloads.shtml";
-    homepage = https://vifm.info/;
+    homepage = "https://vifm.info/";
     inherit version;
     updateWalker = true;
   };
diff --git a/pkgs/applications/misc/viking/default.nix b/pkgs/applications/misc/viking/default.nix
index 9ce37ea8a4672..03d3256e375a6 100644
--- a/pkgs/applications/misc/viking/default.nix
+++ b/pkgs/applications/misc/viking/default.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
       on the map, make new tracks and waypoints, see real-time GPS
       position, etc.
     '';
-    homepage = https://sourceforge.net/projects/viking/;
+    homepage = "https://sourceforge.net/projects/viking/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ pSub sikmir ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/misc/vit/default.nix b/pkgs/applications/misc/vit/default.nix
index 506ab5599199d..3ae4aacb872b0 100644
--- a/pkgs/applications/misc/vit/default.nix
+++ b/pkgs/applications/misc/vit/default.nix
@@ -32,7 +32,7 @@ buildPythonApplication rec {
   '';
 
   meta = with lib; {
-    homepage = https://github.com/scottkosty/vit;
+    homepage = "https://github.com/scottkosty/vit";
     description = "Visual Interactive Taskwarrior";
     maintainers = with maintainers; [ dtzWill arcnmx ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/volnoti/default.nix b/pkgs/applications/misc/volnoti/default.nix
index 3561135ce618c..845bdae6bec78 100644
--- a/pkgs/applications/misc/volnoti/default.nix
+++ b/pkgs/applications/misc/volnoti/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Lightweight volume notification for Linux";
-    homepage = https://github.com/davidbrazdil/volnoti;
+    homepage = "https://github.com/davidbrazdil/volnoti";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.gilligan ];
diff --git a/pkgs/applications/misc/vp/default.nix b/pkgs/applications/misc/vp/default.nix
index a59a25a144e92..7284fa65e8bdc 100644
--- a/pkgs/applications/misc/vp/default.nix
+++ b/pkgs/applications/misc/vp/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE="-I${SDL}/include/SDL -I${SDL_image}/include/SDL";
 
   meta = with stdenv.lib; {
-    homepage = http://brlcad.org/~erik/;
+    homepage = "http://brlcad.org/~erik/";
     description = "SDL based picture viewer/slideshow";
     platforms = platforms.unix;
     license  = licenses.gpl3;
diff --git a/pkgs/applications/misc/vym/default.nix b/pkgs/applications/misc/vym/default.nix
index 3c6c4a87f98f2..ce45471c2f022 100644
--- a/pkgs/applications/misc/vym/default.nix
+++ b/pkgs/applications/misc/vym/default.nix
@@ -53,7 +53,7 @@ mkDerivation rec {
       While a tree like structure like shown on this page can be drawn by hand or any drawing software
       vym offers much more features to work with such maps.
     '';
-    homepage = http://www.insilmaril.de/vym/;
+    homepage = "http://www.insilmaril.de/vym/";
     license = licenses.gpl2;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/wcalc/default.nix b/pkgs/applications/misc/wcalc/default.nix
index ff770f516bc55..94c56ba5439c2 100644
--- a/pkgs/applications/misc/wcalc/default.nix
+++ b/pkgs/applications/misc/wcalc/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A command line calculator";
-    homepage = http://w-calc.sourceforge.net;
+    homepage = "http://w-calc.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/misc/weather/default.nix b/pkgs/applications/misc/weather/default.nix
index 2748d576c692f..ce4fae1cb2293 100644
--- a/pkgs/applications/misc/weather/default.nix
+++ b/pkgs/applications/misc/weather/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
     '';
 
     meta = {
-        homepage = http://fungi.yuggoth.org/weather;
+        homepage = "http://fungi.yuggoth.org/weather";
         description = "Quick access to current weather conditions and forecasts";
         license = stdenv.lib.licenses.isc;
         maintainers = [ stdenv.lib.maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/wikicurses/default.nix b/pkgs/applications/misc/wikicurses/default.nix
index 9b1e9f091e253..e528dab0c9fd5 100644
--- a/pkgs/applications/misc/wikicurses/default.nix
+++ b/pkgs/applications/misc/wikicurses/default.nix
@@ -25,7 +25,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = {
     description = "A simple curses interface for MediaWiki sites such as Wikipedia";
-    homepage = https://github.com/ids1024/wikicurses/;
+    homepage = "https://github.com/ids1024/wikicurses/";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ pSub ];
diff --git a/pkgs/applications/misc/with-shell/default.nix b/pkgs/applications/misc/with-shell/default.nix
index 6a5f7c17b2081..d3b5541ac4dbf 100644
--- a/pkgs/applications/misc/with-shell/default.nix
+++ b/pkgs/applications/misc/with-shell/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
     cp with $out/bin/with
   '';
   meta = {
-    homepage = https://github.com/mchav/With;
+    homepage = "https://github.com/mchav/With";
     description = "Command prefixing for continuous workflow using a single tool";
     license = stdenv.lib.licenses.asl20;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/misc/wmname/default.nix b/pkgs/applications/misc/wmname/default.nix
index 68f6c4df15936..8e760b787b492 100644
--- a/pkgs/applications/misc/wmname/default.nix
+++ b/pkgs/applications/misc/wmname/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Prints or set the window manager name property of the root window";
-    homepage = https://tools.suckless.org/wmname;
+    homepage = "https://tools.suckless.org/wmname";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/wordnet/default.nix b/pkgs/applications/misc/wordnet/default.nix
index 5a1093b47797b..1f0414838adba 100644
--- a/pkgs/applications/misc/wordnet/default.nix
+++ b/pkgs/applications/misc/wordnet/default.nix
@@ -41,10 +41,10 @@ stdenv.mkDerivation rec {
          for computational linguistics and natural language processing.
       '';
 
-    homepage = https://wordnet.princeton.edu/;
+    homepage = "https://wordnet.princeton.edu/";
     license = {
       fullName = "WordNet 3.0 license";
-      url = https://wordnet.princeton.edu/license-and-commercial-use;
+      url = "https://wordnet.princeton.edu/license-and-commercial-use";
     };
     maintainers = [ ];
     platforms = with stdenv.lib.platforms; linux ++ darwin;
diff --git a/pkgs/applications/misc/worker/default.nix b/pkgs/applications/misc/worker/default.nix
index d8d9598e54a2b..8b9ed83006483 100644
--- a/pkgs/applications/misc/worker/default.nix
+++ b/pkgs/applications/misc/worker/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A two-pane file manager with advanced file manipulation features";
-    homepage = http://www.boomerangsworld.de/cms/worker/index.html;
+    homepage = "http://www.boomerangsworld.de/cms/worker/index.html";
     license =  licenses.gpl2;
     maintainers = [];
   };
diff --git a/pkgs/applications/misc/workrave/default.nix b/pkgs/applications/misc/workrave/default.nix
index 4fc06b5c1ad43..b0020b64ededa 100644
--- a/pkgs/applications/misc/workrave/default.nix
+++ b/pkgs/applications/misc/workrave/default.nix
@@ -37,8 +37,8 @@ stdenv.mkDerivation rec {
       Repetitive Strain Injury (RSI). The program frequently alerts you to
       take micro-pauses, rest breaks and restricts you to your daily limit.
     '';
-    homepage = http://www.workrave.org/;
-    downloadPage = https://github.com/rcaelers/workrave/releases;
+    homepage = "http://www.workrave.org/";
+    downloadPage = "https://github.com/rcaelers/workrave/releases";
     license = licenses.gpl3;
     maintainers = with maintainers; [ prikhi ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/xastir/default.nix b/pkgs/applications/misc/xastir/default.nix
index 4086c0e094a18..719d26c7199b5 100644
--- a/pkgs/applications/misc/xastir/default.nix
+++ b/pkgs/applications/misc/xastir/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Graphical APRS client";
-    homepage = https://xastir.org;
+    homepage = "https://xastir.org";
     license = licenses.gpl2;
     maintainers = [ maintainers.ehmry ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/misc/xautoclick/default.nix b/pkgs/applications/misc/xautoclick/default.nix
index 295d721d3c5f6..4f441d8a9a99e 100644
--- a/pkgs/applications/misc/xautoclick/default.nix
+++ b/pkgs/applications/misc/xautoclick/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Autoclicker application, which enables you to automatically click the left mousebutton";
-    homepage = http://xautoclick.sourceforge.net;
+    homepage = "http://xautoclick.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/misc/xca/default.nix b/pkgs/applications/misc/xca/default.nix
index 8946e83c94a20..bf6b37b10286c 100644
--- a/pkgs/applications/misc/xca/default.nix
+++ b/pkgs/applications/misc/xca/default.nix
@@ -25,7 +25,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "An x509 certificate generation tool, handling RSA, DSA and EC keys, certificate signing requests (PKCS#10) and CRLs";
-    homepage    = https://hohnstaedt.de/xca/;
+    homepage    = "https://hohnstaedt.de/xca/";
     license     = licenses.bsd3;
     maintainers = with maintainers; [ offline peterhoeg ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/misc/xcruiser/default.nix b/pkgs/applications/misc/xcruiser/default.nix
index 8875c95fe578e..80a1ced563f8b 100644
--- a/pkgs/applications/misc/xcruiser/default.nix
+++ b/pkgs/applications/misc/xcruiser/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "xcruiser-0.30";
 
   src = fetchurl {
-      url = mirror://sourceforge/xcruiser/xcruiser/xcruiser-0.30/xcruiser-0.30.tar.gz;
+      url = "mirror://sourceforge/xcruiser/xcruiser/xcruiser-0.30/xcruiser-0.30.tar.gz";
       sha256 = "1r8whva38xizqdh7jmn6wcmfmsndc67pkw22wzfzr6rq0vf6hywi";
     };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
       It constructs a virtually 3-D formed universe from a directory
       tree and allows you to "cruise" within a visualized filesystem.
     '';
-    homepage = http://xcruiser.sourceforge.net/;
+    homepage = "http://xcruiser.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ ehmry ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/misc/xdgmenumaker/default.nix b/pkgs/applications/misc/xdgmenumaker/default.nix
index 56168b348596a..b4d821e1deb11 100644
--- a/pkgs/applications/misc/xdgmenumaker/default.nix
+++ b/pkgs/applications/misc/xdgmenumaker/default.nix
@@ -40,7 +40,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Command line tool that generates XDG menus for several window managers";
-    homepage = https://github.com/gapan/xdgmenumaker;
+    homepage = "https://github.com/gapan/xdgmenumaker";
     license = licenses.gpl2Plus;
     # NOTE: exclude darwin from platforms because Travis reports hash mismatch
     platforms = with platforms; filter (x: !(elem x darwin)) unix;
diff --git a/pkgs/applications/misc/xfe/default.nix b/pkgs/applications/misc/xfe/default.nix
index 444ab802673e6..29a20e0ece292 100644
--- a/pkgs/applications/misc/xfe/default.nix
+++ b/pkgs/applications/misc/xfe/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
       It is based on the popular, but discontinued, X Win Commander, which was developed by Maxim Baranov.
       Xfe aims to be the filemanager of choice for all the Unix addicts!
     '';
-    homepage = https://sourceforge.net/projects/xfe/;
+    homepage = "https://sourceforge.net/projects/xfe/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/xfontsel/default.nix b/pkgs/applications/misc/xfontsel/default.nix
index 5d2b70a80ee41..c61e64a8a3a7b 100644
--- a/pkgs/applications/misc/xfontsel/default.nix
+++ b/pkgs/applications/misc/xfontsel/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://www.x.org/;
+    homepage = "https://www.x.org/";
     description = "Allows testing the fonts available in an X server";
     license = stdenv.lib.licenses.free;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/misc/xiphos/default.nix b/pkgs/applications/misc/xiphos/default.nix
index 2e81e9b05d34e..027ff8f264cf9 100644
--- a/pkgs/applications/misc/xiphos/default.nix
+++ b/pkgs/applications/misc/xiphos/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
       and featureful environment for reading, study, and research using
       modules from The SWORD Project and elsewhere.
     '';
-    homepage = http://www.xiphos.org/;
+    homepage = "http://www.xiphos.org/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/xkbd/default.nix b/pkgs/applications/misc/xkbd/default.nix
index d6709ecc1a624..d03d78a9fd1d2 100644
--- a/pkgs/applications/misc/xkbd/default.nix
+++ b/pkgs/applications/misc/xkbd/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ autoreconfHook ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mahatma-kaganovich/xkbd;
+    homepage = "https://github.com/mahatma-kaganovich/xkbd";
     description = "onscreen soft keyboard for X11";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.genesis ];
diff --git a/pkgs/applications/misc/xkblayout-state/default.nix b/pkgs/applications/misc/xkblayout-state/default.nix
index abc808477a39e..296d6f38db64a 100644
--- a/pkgs/applications/misc/xkblayout-state/default.nix
+++ b/pkgs/applications/misc/xkblayout-state/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A small command-line program to get/set the current XKB keyboard layout";
-    homepage = https://github.com/nonpop/xkblayout-state;
+    homepage = "https://github.com/nonpop/xkblayout-state";
     license = licenses.gpl2;
     maintainers = [ maintainers.jagajaga ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/xkbmon/default.nix b/pkgs/applications/misc/xkbmon/default.nix
index dc618e4561e6e..1e6384c7d5763 100644
--- a/pkgs/applications/misc/xkbmon/default.nix
+++ b/pkgs/applications/misc/xkbmon/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   installPhase = "install -D -t $out/bin xkbmon";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/xkbmon/xkbmon;
+    homepage = "https://github.com/xkbmon/xkbmon";
     description = "Command-line keyboard layout monitor for X11";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/xmind/default.nix b/pkgs/applications/misc/xmind/default.nix
index f65f5bc26e8ba..3e729af71fe53 100644
--- a/pkgs/applications/misc/xmind/default.nix
+++ b/pkgs/applications/misc/xmind/default.nix
@@ -84,7 +84,7 @@ stdenv.mkDerivation rec {
       GTD. Meanwhile, XMind can read FreeMind and MindManager files,
       and save to Evernote.
     '';
-    homepage = https://www.xmind.net/;
+    homepage = "https://www.xmind.net/";
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = with maintainers; [ michalrus ma27 ];
diff --git a/pkgs/applications/misc/xneur/default.nix b/pkgs/applications/misc/xneur/default.nix
index f3bbbf42d5bc4..e75055e92b804 100644
--- a/pkgs/applications/misc/xneur/default.nix
+++ b/pkgs/applications/misc/xneur/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Utility for switching between keyboard layouts";
-    homepage = https://xneur.ru;
+    homepage = "https://xneur.ru";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/xpad/default.nix b/pkgs/applications/misc/xpad/default.nix
index 40f7ef9da08e1..8944011a8d730 100644
--- a/pkgs/applications/misc/xpad/default.nix
+++ b/pkgs/applications/misc/xpad/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A sticky note application for jotting down things to remember";
-    homepage = https://launchpad.net/xpad;
+    homepage = "https://launchpad.net/xpad";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ michalrus ];
diff --git a/pkgs/applications/misc/xpdf/libxpdf.nix b/pkgs/applications/misc/xpdf/libxpdf.nix
index cf6f5f32ee2af..3b982b1766f97 100644
--- a/pkgs/applications/misc/xpdf/libxpdf.nix
+++ b/pkgs/applications/misc/xpdf/libxpdf.nix
@@ -5,25 +5,25 @@ stdenv.mkDerivation {
   name = "libxpdf-3.02pl4";
 
   src = fetchurl {
-    url = ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02.tar.gz;
+    url = "ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02.tar.gz";
     sha256 = "000zq4ddbwyxiki4vdwpmxbnw5n9hsg9hvwra2p33hslyib7sfmk";
   };
   
   patches = [
     (fetchurl {
-      url = ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl1.patch;
+      url = "ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl1.patch";
       sha256 = "1wxv9l0d2kkwi961ihpdwi75whdvk7cgqxkbfym8cjj11fq17xjq";
     })
     (fetchurl {
-      url = ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl2.patch;
+      url = "ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl2.patch";
       sha256 = "1nfrgsh9xj0vryd8h65myzd94bjz117y89gq0hzji9dqn23xihfi";
     })
     (fetchurl {
-      url = ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl3.patch;
+      url = "ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl3.patch";
       sha256 = "0jskkv8x6dqr9zj4azaglas8cziwqqrkbbnzrpm2kzrvsbxyhk2r";
     })
     (fetchurl {
-      url = ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl4.patch;
+      url = "ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl4.patch";
       sha256 = "1c48h7aizx0ngmzlzw0mpja1w8vqyy3pg62hyxp7c60k86al715h";
     })
     ./xpdf-3.02-protection.patch
diff --git a/pkgs/applications/misc/xrandr-invert-colors/default.nix b/pkgs/applications/misc/xrandr-invert-colors/default.nix
index 41071012ae9f6..9d57b4fcfac0a 100644
--- a/pkgs/applications/misc/xrandr-invert-colors/default.nix
+++ b/pkgs/applications/misc/xrandr-invert-colors/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Inverts the colors of your screen";
     license = stdenv.lib.licenses.gpl3Plus;
-    homepage = https://github.com/zoltanp/xrandr-invert-colors;
+    homepage = "https://github.com/zoltanp/xrandr-invert-colors";
     maintainers = [stdenv.lib.maintainers.magnetophon ];
     platforms = platforms.linux;
   }; 
diff --git a/pkgs/applications/misc/xrq/default.nix b/pkgs/applications/misc/xrq/default.nix
index 244a2c43a155f..e3db746ee028e 100644
--- a/pkgs/applications/misc/xrq/default.nix
+++ b/pkgs/applications/misc/xrq/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "X utility for querying xrdb";
-    homepage = https://github.com/arianon/xrq;
+    homepage = "https://github.com/arianon/xrq";
     license = stdenv.lib.licenses.mit;
     platforms = with stdenv.lib.platforms; unix;
   };
diff --git a/pkgs/applications/misc/xscope/default.nix b/pkgs/applications/misc/xscope/default.nix
index 517105d7e1fd6..4db034476c7af 100644
--- a/pkgs/applications/misc/xscope/default.nix
+++ b/pkgs/applications/misc/xscope/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "program to monitor X11/Client conversations";
-    homepage = https://cgit.freedesktop.org/xorg/app/xscope/;
+    homepage = "https://cgit.freedesktop.org/xorg/app/xscope/";
     license = with licenses; [ mit ];
     maintainers = with maintainers; [ ];
     platforms = with platforms; unix;
diff --git a/pkgs/applications/misc/xterm/default.nix b/pkgs/applications/misc/xterm/default.nix
index 8842d01e70683..f6837b692b197 100644
--- a/pkgs/applications/misc/xterm/default.nix
+++ b/pkgs/applications/misc/xterm/default.nix
@@ -63,7 +63,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://invisible-island.net/xterm;
+    homepage = "https://invisible-island.net/xterm";
     license = with stdenv.lib.licenses; [ mit ];
     maintainers = with stdenv.lib.maintainers; [vrthra];
     platforms = with stdenv.lib.platforms; linux ++ darwin;
diff --git a/pkgs/applications/misc/xtermcontrol/default.nix b/pkgs/applications/misc/xtermcontrol/default.nix
index 51575d62ed501..f7c0edf22420f 100644
--- a/pkgs/applications/misc/xtermcontrol/default.nix
+++ b/pkgs/applications/misc/xtermcontrol/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       Window manipulations de-/iconify, raise/lower, maximize/restore and reset are also supported.
       To complete the feature set; xtermcontrol lets advanced users issue any xterm control sequence of their choosing.
     '';
-    homepage = http://thrysoee.dk/xtermcontrol;
+    homepage = "http://thrysoee.dk/xtermcontrol";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.derchris ];
diff --git a/pkgs/applications/misc/xxkb/default.nix b/pkgs/applications/misc/xxkb/default.nix
index 612e4a557a71b..64d55322896b9 100644
--- a/pkgs/applications/misc/xxkb/default.nix
+++ b/pkgs/applications/misc/xxkb/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A keyboard layout indicator and switcher";
-    homepage = http://xxkb.sourceforge.net/;
+    homepage = "http://xxkb.sourceforge.net/";
     license = stdenv.lib.licenses.artistic2;
     maintainers = with stdenv.lib.maintainers; [ rasendubi ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/misc/yaft/default.nix b/pkgs/applications/misc/yaft/default.nix
index 2135c7fd61742..e66f397a38307 100644
--- a/pkgs/applications/misc/yaft/default.nix
+++ b/pkgs/applications/misc/yaft/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" "MANPREFIX=$(out)/share/man" ];
 
   meta = {
-    homepage = https://github.com/uobikiemukot/yaft;
+    homepage = "https://github.com/uobikiemukot/yaft";
     description = "Yet another framebuffer terminal";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.matthiasbeyer ];
diff --git a/pkgs/applications/misc/yarssr/default.nix b/pkgs/applications/misc/yarssr/default.nix
index f2da2957bd3e4..c5489b8b9813c 100644
--- a/pkgs/applications/misc/yarssr/default.nix
+++ b/pkgs/applications/misc/yarssr/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/tsyrogit/zxcvbn-c;
+    homepage = "https://github.com/tsyrogit/zxcvbn-c";
     description = "A fork of Yarssr (a RSS reader for the GNOME Tray) from http://yarssr.sf.net with various fixes.";
     license = licenses.gpl1;
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/yate/default.nix b/pkgs/applications/misc/yate/default.nix
index 09a6cc4a3c0a4..6c03bbc33b39b 100644
--- a/pkgs/applications/misc/yate/default.nix
+++ b/pkgs/applications/misc/yate/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Yet another telephony engine";
-    homepage = http://yate.null.ro/;
+    homepage = "http://yate.null.ro/";
     # Yate's license is GPL with an exception for linking with
     # OpenH323 and PWlib (licensed under MPL).
     license = ["GPL" "MPL"];
diff --git a/pkgs/applications/misc/yokadi/default.nix b/pkgs/applications/misc/yokadi/default.nix
index 6b3a4f747f47d..00507d2ee8881 100644
--- a/pkgs/applications/misc/yokadi/default.nix
+++ b/pkgs/applications/misc/yokadi/default.nix
@@ -22,7 +22,7 @@ buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A command line oriented, sqlite powered, todo-list";
-    homepage = https://yokadi.github.io/index.html;
+    homepage = "https://yokadi.github.io/index.html";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.nipav ];
   };
diff --git a/pkgs/applications/misc/zathura/wrapper.nix b/pkgs/applications/misc/zathura/wrapper.nix
index 4a6ef041b5401..5d37b5190d027 100644
--- a/pkgs/applications/misc/zathura/wrapper.nix
+++ b/pkgs/applications/misc/zathura/wrapper.nix
@@ -19,7 +19,7 @@ in symlinkJoin {
   '';
 
   meta = with lib; {
-    homepage = https://git.pwmt.org/pwmt/zathura/;
+    homepage = "https://git.pwmt.org/pwmt/zathura/";
     description = "A highly customizable and functional PDF viewer";
     longDescription = ''
       Zathura is a highly customizable and functional PDF viewer based on the
diff --git a/pkgs/applications/misc/zk-shell/default.nix b/pkgs/applications/misc/zk-shell/default.nix
index ec8deadf9f54f..df6e011e4d585 100644
--- a/pkgs/applications/misc/zk-shell/default.nix
+++ b/pkgs/applications/misc/zk-shell/default.nix
@@ -20,7 +20,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = {
     description = "A powerful & scriptable shell for Apache ZooKeeper";
-    homepage = https://github.com/rgs1/zk_shell;
+    homepage = "https://github.com/rgs1/zk_shell";
     license = stdenv.lib.licenses.asl20;
     maintainers = [ stdenv.lib.maintainers.mahe ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/misc/zscroll/default.nix b/pkgs/applications/misc/zscroll/default.nix
index 18876cf355b86..402032b5cec3f 100644
--- a/pkgs/applications/misc/zscroll/default.nix
+++ b/pkgs/applications/misc/zscroll/default.nix
@@ -20,7 +20,7 @@ python3Packages.buildPythonApplication {
 
   meta = with stdenv.lib; {
     description = "A text scroller for use with panels and shells";
-    homepage = https://github.com/noctuid/zscroll;
+    homepage = "https://github.com/noctuid/zscroll";
     license = licenses.bsd2;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/networking/brig/default.nix b/pkgs/applications/networking/brig/default.nix
index 31eb4dd7378ac..66329b64eaceb 100644
--- a/pkgs/applications/networking/brig/default.nix
+++ b/pkgs/applications/networking/brig/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "File synchronization on top of ipfs with git like interface and FUSE filesystem";
-    homepage = https://github.com/sahib/brig;
+    homepage = "https://github.com/sahib/brig";
     license = licenses.agpl3;
     platforms = platforms.unix;
     maintainers = with maintainers; [ offline ];
diff --git a/pkgs/applications/networking/browsers/arora/default.nix b/pkgs/applications/networking/browsers/arora/default.nix
index 57db827169eca..88ad2c609bfab 100644
--- a/pkgs/applications/networking/browsers/arora/default.nix
+++ b/pkgs/applications/networking/browsers/arora/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
     platforms = qt4.meta.platforms;
     maintainers = [ maintainers.phreedom ];
     description = "A cross-platform Qt4 Webkit browser";
-    homepage = https://github.com/Arora/arora;
+    homepage = "https://github.com/Arora/arora";
     license = with licenses; [ gpl2 gpl3 ];
   };
 }
diff --git a/pkgs/applications/networking/browsers/browsh/default.nix b/pkgs/applications/networking/browsers/browsh/default.nix
index 94e939b9ab421..3662c3badd3e8 100644
--- a/pkgs/applications/networking/browsers/browsh/default.nix
+++ b/pkgs/applications/networking/browsers/browsh/default.nix
@@ -53,7 +53,7 @@ in buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "A fully-modern text-based browser, rendering to TTY and browsers";
-    homepage = https://www.brow.sh/;
+    homepage = "https://www.brow.sh/";
     maintainers = [ maintainers.kalbasit ];
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
diff --git a/pkgs/applications/networking/browsers/captive-browser/default.nix b/pkgs/applications/networking/browsers/captive-browser/default.nix
index 88bd32da8f167..3ce04842c6e48 100644
--- a/pkgs/applications/networking/browsers/captive-browser/default.nix
+++ b/pkgs/applications/networking/browsers/captive-browser/default.nix
@@ -14,7 +14,7 @@ buildGoPackage rec {
 
   meta = with lib; {
     description = "Dedicated Chrome instance to log into captive portals without messing with DNS settings";
-    homepage = https://blog.filippo.io/captive-browser;
+    homepage = "https://blog.filippo.io/captive-browser";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = with maintainers; [ volth ];
diff --git a/pkgs/applications/networking/browsers/chromium/browser.nix b/pkgs/applications/networking/browsers/chromium/browser.nix
index edbf97e896338..7c0609730c249 100644
--- a/pkgs/applications/networking/browsers/chromium/browser.nix
+++ b/pkgs/applications/networking/browsers/chromium/browser.nix
@@ -76,7 +76,7 @@ mkChromiumDerivation (base: rec {
       the web. It has a minimalist user interface and provides the vast majority
       of source code for Google Chrome (which has some additional features).
     '';
-    homepage = https://www.chromium.org/;
+    homepage = "https://www.chromium.org/";
     maintainers = with maintainers; [ bendlas thefloweringash primeos ];
     # Overview of the maintainer roles:
     # nixos-unstable:
diff --git a/pkgs/applications/networking/browsers/dillo/default.nix b/pkgs/applications/networking/browsers/dillo/default.nix
index 8d6c99d2468c9..fa1fa76340c32 100644
--- a/pkgs/applications/networking/browsers/dillo/default.nix
+++ b/pkgs/applications/networking/browsers/dillo/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--enable-ssl" ];
 
   meta = with stdenv.lib; {
-    homepage = https://www.dillo.org/;
+    homepage = "https://www.dillo.org/";
     description = "A fast graphical web browser with a small footprint";
     longDescription = ''
       Dillo is a small, fast web browser, tailored for older machines.
diff --git a/pkgs/applications/networking/browsers/elinks/default.nix b/pkgs/applications/networking/browsers/elinks/default.nix
index 8d62bd7d5cc17..985497a095cb4 100644
--- a/pkgs/applications/networking/browsers/elinks/default.nix
+++ b/pkgs/applications/networking/browsers/elinks/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   name = "elinks-0.12pre6";
 
   src = fetchurl {
-    url = http://elinks.or.cz/download/elinks-0.12pre6.tar.bz2;
+    url = "http://elinks.or.cz/download/elinks-0.12pre6.tar.bz2";
     sha256 = "1nnakbi01g7yd3zqwprchh5yp45br8086b0kbbpmnclabcvlcdiq";
   };
 
@@ -46,7 +46,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Full-featured text-mode web browser";
-    homepage = http://elinks.or.cz;
+    homepage = "http://elinks.or.cz";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/browsers/eolie/default.nix b/pkgs/applications/networking/browsers/eolie/default.nix
index b9b183a03ff35..cfccacf1ae08c 100644
--- a/pkgs/applications/networking/browsers/eolie/default.nix
+++ b/pkgs/applications/networking/browsers/eolie/default.nix
@@ -59,7 +59,7 @@ python3.pkgs.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A new GNOME web browser";
-    homepage = https://wiki.gnome.org/Apps/Eolie;
+    homepage = "https://wiki.gnome.org/Apps/Eolie";
     license  = licenses.gpl3Plus;
     maintainers = with maintainers; [ samdroid-apps worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/browsers/falkon/default.nix b/pkgs/applications/networking/browsers/falkon/default.nix
index 6e21456a9a925..954b45a2042b4 100644
--- a/pkgs/applications/networking/browsers/falkon/default.nix
+++ b/pkgs/applications/networking/browsers/falkon/default.nix
@@ -36,7 +36,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "QtWebEngine based cross-platform web browser";
-    homepage    = https://community.kde.org/Incubator/Projects/Falkon;
+    homepage    = "https://community.kde.org/Incubator/Projects/Falkon";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ peterhoeg ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/networking/browsers/firefox-bin/default.nix b/pkgs/applications/networking/browsers/firefox-bin/default.nix
index c9dbe6ba4b96f..71940c1b33ae9 100644
--- a/pkgs/applications/networking/browsers/firefox-bin/default.nix
+++ b/pkgs/applications/networking/browsers/firefox-bin/default.nix
@@ -199,10 +199,10 @@ stdenv.mkDerivation {
   };
   meta = with stdenv.lib; {
     description = "Mozilla Firefox, free web browser (binary package)";
-    homepage = http://www.mozilla.org/firefox/;
+    homepage = "http://www.mozilla.org/firefox/";
     license = {
       free = false;
-      url = http://www.mozilla.org/en-US/foundation/trademarks/policy/;
+      url = "http://www.mozilla.org/en-US/foundation/trademarks/policy/";
     };
     platforms = builtins.attrNames mozillaPlatforms;
     maintainers = with maintainers; [ taku0 ];
diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index e30ebc9afb567..e419137c4e9bc 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -19,7 +19,7 @@ rec {
 
     meta = {
       description = "A web browser built from Firefox source tree";
-      homepage = http://www.mozilla.com/en-US/firefox/;
+      homepage = "http://www.mozilla.com/en-US/firefox/";
       maintainers = with lib.maintainers; [ eelco andir ];
       platforms = lib.platforms.unix;
       badPlatforms = lib.platforms.darwin;
diff --git a/pkgs/applications/networking/browsers/google-chrome/default.nix b/pkgs/applications/networking/browsers/google-chrome/default.nix
index 53255ec518350..2d25643e2a389 100644
--- a/pkgs/applications/networking/browsers/google-chrome/default.nix
+++ b/pkgs/applications/networking/browsers/google-chrome/default.nix
@@ -133,7 +133,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "A freeware web browser developed by Google";
-    homepage = https://www.google.com/chrome/browser/;
+    homepage = "https://www.google.com/chrome/browser/";
     license = licenses.unfree;
     maintainers = [ maintainers.msteen ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/browsers/links2/default.nix b/pkgs/applications/networking/browsers/links2/default.nix
index b09be81cc418f..d58fc8fd19bf8 100644
--- a/pkgs/applications/networking/browsers/links2/default.nix
+++ b/pkgs/applications/networking/browsers/links2/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional enableDirectFB "--with-directfb";
 
   meta = with stdenv.lib; {
-    homepage = http://links.twibright.com/;
+    homepage = "http://links.twibright.com/";
     description = "A small browser with some graphics support";
     maintainers = with maintainers; [ raskin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/browsers/luakit/default.nix b/pkgs/applications/networking/browsers/luakit/default.nix
index 0605eda7fc76a..bf10043e942e7 100644
--- a/pkgs/applications/networking/browsers/luakit/default.nix
+++ b/pkgs/applications/networking/browsers/luakit/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Fast, small, webkit based browser framework extensible in Lua";
-    homepage    = https://luakit.github.io/;
+    homepage    = "https://luakit.github.io/";
     license     = licenses.gpl3;
     platforms   = platforms.linux; # Only tested linux
   };
diff --git a/pkgs/applications/networking/browsers/lynx/default.nix b/pkgs/applications/networking/browsers/lynx/default.nix
index 3f4f96d33efb6..8aeee45b9e542 100644
--- a/pkgs/applications/networking/browsers/lynx/default.nix
+++ b/pkgs/applications/networking/browsers/lynx/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A text-mode web browser";
-    homepage = https://lynx.invisible-island.net/;
+    homepage = "https://lynx.invisible-island.net/";
     license = licenses.gpl2Plus;
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/networking/browsers/midori/default.nix b/pkgs/applications/networking/browsers/midori/default.nix
index 1d1928d168b6b..66f6384643ad0 100644
--- a/pkgs/applications/networking/browsers/midori/default.nix
+++ b/pkgs/applications/networking/browsers/midori/default.nix
@@ -51,7 +51,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Lightweight WebKitGTK web browser";
-    homepage = https://www.midori-browser.org/;
+    homepage = "https://www.midori-browser.org/";
     license = with licenses; [ lgpl21Plus ];
     platforms = with platforms; linux;
     maintainers = with maintainers; [ raskin ramkromberg ];
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/bluejeans/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/bluejeans/default.nix
index e8841a0ab6fbe..b540706328781 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/bluejeans/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/bluejeans/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
   passthru.mozillaPlugin = "/lib/mozilla/plugins";
 
   meta = {
-    homepage = http://bluejeans.com;
+    homepage = "http://bluejeans.com";
     license = stdenv.lib.licenses.unfree;
     maintainers = with maintainers; [ ocharles kamilchm ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix
index 46a759cf27af4..0cf73512fcb13 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix
@@ -139,7 +139,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Adobe Flash Player browser plugin";
-    homepage = http://www.adobe.com/products/flashplayer/;
+    homepage = "http://www.adobe.com/products/flashplayer/";
     license = stdenv.lib.licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ taku0 ];
     platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix
index 5274d30e68aa1..64dd87c4ace2e 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix
@@ -95,7 +95,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Adobe Flash Player standalone executable";
-    homepage = https://www.adobe.com/support/flashplayer/debug_downloads.html;
+    homepage = "https://www.adobe.com/support/flashplayer/debug_downloads.html";
     license = stdenv.lib.licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ taku0 ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/fribid/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/fribid/default.nix
index 101ae99d6659b..b59c30002d38a 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/fribid/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/fribid/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
       Linux/BSD distributions that the official software doesn't
       support.
     '';
-    homepage = http://fribid.se;
+    homepage = "http://fribid.se";
     license = with licenses; [ gpl2 mpl10 ];
     maintainers = [ maintainers.edwtjo ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
index 93f2ab2adfa3a..9923b100afa1b 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
@@ -110,7 +110,7 @@ stdenv.mkDerivation rec {
   passthru.mozillaPlugin = "/lib/mozilla/plugins";
 
   meta = {
-    homepage = http://www.google.com/chat/video/;
+    homepage = "http://www.google.com/chat/video/";
     license = stdenv.lib.licenses.unfree;
     maintainers = [ stdenv.lib.maintainers.eelco ];
   };
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/mozplugger/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/mozplugger/default.nix
index fd956f62327e2..a7f2815b41106 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/mozplugger/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/mozplugger/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Mozilla plugin for launching external program for handling in-page objects";
-    homepage = http://mozplugger.mozdev.org/;
+    homepage = "http://mozplugger.mozdev.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/mplayerplug-in/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/mplayerplug-in/default.nix
index a5bfda9f26c97..d4561772dc59f 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/mplayerplug-in/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/mplayerplug-in/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A browser plugin that uses mplayer to play digital media from websites";
-    homepage = http://mplayerplug-in.sourceforge.net/;
+    homepage = "http://mplayerplug-in.sourceforge.net/";
     license = with licenses; [ gpl2Plus lgpl2Plus "MPLv1+" ];
   };
 }
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/nspluginwrapper/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/nspluginwrapper/default.nix
index 10ae0eb1da601..59eef8c8f3acf 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/nspluginwrapper/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/nspluginwrapper/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = ''A wrapper to run browser plugins out-of-process'';
-    homepage = http://nspluginwrapper.org/;
+    homepage = "http://nspluginwrapper.org/";
     license = stdenv.lib.licenses.gpl2;
     platforms = [ "x64_64-linux" "i686-linux" ];
     maintainers = [ stdenv.lib.maintainers.raskin ];
diff --git a/pkgs/applications/networking/browsers/next/default.nix b/pkgs/applications/networking/browsers/next/default.nix
index d4726fab6511d..e03f918a587c2 100644
--- a/pkgs/applications/networking/browsers/next/default.nix
+++ b/pkgs/applications/networking/browsers/next/default.nix
@@ -87,7 +87,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Infinitely extensible web-browser (with Lisp development files using WebKitGTK platform port)";
-    homepage = https://next.atlas.engineer;
+    homepage = "https://next.atlas.engineer";
     license = licenses.bsd3;
     maintainers = [ maintainers.lewo ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/browsers/next/next-gtk-webkit.nix b/pkgs/applications/networking/browsers/next/next-gtk-webkit.nix
index a71583ffbec59..8039c5492408a 100644
--- a/pkgs/applications/networking/browsers/next/next-gtk-webkit.nix
+++ b/pkgs/applications/networking/browsers/next/next-gtk-webkit.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Infinitely extensible web-browser (user interface only)";
-    homepage = https://next.atlas.engineer;
+    homepage = "https://next.atlas.engineer";
     license = licenses.bsd3;
     maintainers = [ maintainers.lewo ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/browsers/qutebrowser/default.nix b/pkgs/applications/networking/browsers/qutebrowser/default.nix
index 12cf9b30fa61e..537bb0ebf2ecf 100644
--- a/pkgs/applications/networking/browsers/qutebrowser/default.nix
+++ b/pkgs/applications/networking/browsers/qutebrowser/default.nix
@@ -105,7 +105,7 @@ in mkDerivationWith python3Packages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage    = https://github.com/The-Compiler/qutebrowser;
+    homepage    = "https://github.com/The-Compiler/qutebrowser";
     description = "Keyboard-focused browser with a minimal GUI";
     license     = licenses.gpl3Plus;
     maintainers = with maintainers; [ jagajaga rnhmjoj ebzzry ];
diff --git a/pkgs/applications/networking/browsers/surf/default.nix b/pkgs/applications/networking/browsers/surf/default.nix
index 0437ab933bd75..03571469da1f5 100644
--- a/pkgs/applications/networking/browsers/surf/default.nix
+++ b/pkgs/applications/networking/browsers/surf/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
       possible to embed it in another application. Furthermore, one can point
       surf to another URI by setting its XProperties.
     '';
-    homepage = https://surf.suckless.org;
+    homepage = "https://surf.suckless.org";
     license = licenses.mit;
     platforms = webkitgtk.meta.platforms;
     maintainers = with maintainers; [ joachifm ];
diff --git a/pkgs/applications/networking/browsers/vimb/default.nix b/pkgs/applications/networking/browsers/vimb/default.nix
index 0a72099e653cc..099d81c99f801 100644
--- a/pkgs/applications/networking/browsers/vimb/default.nix
+++ b/pkgs/applications/networking/browsers/vimb/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       editor and also easily configurable during runtime. Vimb is mostly
       keyboard driven and does not detract you from your daily work.
     '';
-    homepage = https://fanglingsu.github.io/vimb/;
+    homepage = "https://fanglingsu.github.io/vimb/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/browsers/w3m/default.nix b/pkgs/applications/networking/browsers/w3m/default.nix
index 373fa43c72c3e..a15d6844f56df 100644
--- a/pkgs/applications/networking/browsers/w3m/default.nix
+++ b/pkgs/applications/networking/browsers/w3m/default.nix
@@ -91,7 +91,7 @@ in stdenv.mkDerivation rec {
   LIBS = optionalString x11Support "-lX11";
 
   meta = {
-    homepage = http://w3m.sourceforge.net/;
+    homepage = "http://w3m.sourceforge.net/";
     description = "A text-mode web browser";
     maintainers = [ maintainers.cstrahan ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/networking/browsers/webmacs/default.nix b/pkgs/applications/networking/browsers/webmacs/default.nix
index b86ba3c39f063..7dbb6a3c53887 100644
--- a/pkgs/applications/networking/browsers/webmacs/default.nix
+++ b/pkgs/applications/networking/browsers/webmacs/default.nix
@@ -65,8 +65,8 @@ mkDerivationWith python3Packages.buildPythonApplication rec {
 
       Based on QtWebEngine and Python 3. Fully customizable in Python.
     '';
-    homepage = https://webmacs.readthedocs.io/en/latest/;
-    changelog = https://github.com/parkouss/webmacs/blob/master/CHANGELOG.md;
+    homepage = "https://webmacs.readthedocs.io/en/latest/";
+    changelog = "https://github.com/parkouss/webmacs/blob/master/CHANGELOG.md";
     license = licenses.gpl3;
     maintainers = with maintainers; [ jacg ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/c14/default.nix b/pkgs/applications/networking/c14/default.nix
index c000a37ff0296..98d2f4aa81d60 100644
--- a/pkgs/applications/networking/c14/default.nix
+++ b/pkgs/applications/networking/c14/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "C14 is designed for data archiving & long-term backups.";
-    homepage = https://www.online.net/en/storage/c14-cold-storage;
+    homepage = "https://www.online.net/en/storage/c14-cold-storage";
     license = licenses.mit;
     maintainers = with maintainers; [ apeyroux ];
   };
diff --git a/pkgs/applications/networking/charles/default.nix b/pkgs/applications/networking/charles/default.nix
index 4c1f7ea77492d..11eb24ff70313 100644
--- a/pkgs/applications/networking/charles/default.nix
+++ b/pkgs/applications/networking/charles/default.nix
@@ -47,7 +47,7 @@ let
 
       meta = with stdenv.lib; {
         description = "Web Debugging Proxy";
-        homepage = https://www.charlesproxy.com/;
+        homepage = "https://www.charlesproxy.com/";
         maintainers = [ maintainers.kalbasit ];
         license = stdenv.lib.licenses.unfree;
         platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
diff --git a/pkgs/applications/networking/cluster/argo/default.nix b/pkgs/applications/networking/cluster/argo/default.nix
index f02b64e92c8ba..891d153a09e1f 100644
--- a/pkgs/applications/networking/cluster/argo/default.nix
+++ b/pkgs/applications/networking/cluster/argo/default.nix
@@ -41,7 +41,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description = "Container native workflow engine for Kubernetes";
-    homepage = https://github.com/argoproj/argo;
+    homepage = "https://github.com/argoproj/argo";
     license = licenses.asl20;
     maintainers = with maintainers; [ groodt ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/cluster/chronos/default.nix b/pkgs/applications/networking/cluster/chronos/default.nix
index 78be19cd81e5d..e2452b2b44114 100644
--- a/pkgs/applications/networking/cluster/chronos/default.nix
+++ b/pkgs/applications/networking/cluster/chronos/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage    = http://airbnb.github.io/chronos;
+    homepage    = "http://airbnb.github.io/chronos";
     license     = licenses.asl20;
     description = "Fault tolerant job scheduler for Mesos which handles dependencies and ISO8601 based schedules";
     maintainers = with maintainers; [ offline ];
diff --git a/pkgs/applications/networking/cluster/click/default.nix b/pkgs/applications/networking/cluster/click/default.nix
index ef90c0cde3210..2c0e73fb30dbb 100644
--- a/pkgs/applications/networking/cluster/click/default.nix
+++ b/pkgs/applications/networking/cluster/click/default.nix
@@ -19,7 +19,7 @@ buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = ''The "Command Line Interactive Controller for Kubernetes"'';
-    homepage = https://github.com/databricks/click;
+    homepage = "https://github.com/databricks/click";
     license = [ licenses.asl20 ];
     maintainers = [ maintainers.mbode ];
     platforms = [ "x86_64-linux" "x86_64-darwin" ];
diff --git a/pkgs/applications/networking/cluster/cni/default.nix b/pkgs/applications/networking/cluster/cni/default.nix
index 88dbd177da048..8e74f834eaf46 100644
--- a/pkgs/applications/networking/cluster/cni/default.nix
+++ b/pkgs/applications/networking/cluster/cni/default.nix
@@ -15,7 +15,7 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     description = "Container Network Interface - networking for Linux containers";
     license = licenses.asl20;
-    homepage = https://github.com/containernetworking/cni;
+    homepage = "https://github.com/containernetworking/cni";
     maintainers = with maintainers; [ offline vdemeester ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/networking/cluster/cni/plugins.nix b/pkgs/applications/networking/cluster/cni/plugins.nix
index 39c3b9f65072f..8988c7efc33f0 100644
--- a/pkgs/applications/networking/cluster/cni/plugins.nix
+++ b/pkgs/applications/networking/cluster/cni/plugins.nix
@@ -32,7 +32,7 @@ buildGoPackage rec {
   ];
   meta = with lib; {
     description = "Some standard networking plugins, maintained by the CNI team";
-    homepage = https://github.com/containernetworking/plugins;
+    homepage = "https://github.com/containernetworking/plugins";
     license = licenses.asl20;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan saschagrunert ];
diff --git a/pkgs/applications/networking/cluster/docker-machine/default.nix b/pkgs/applications/networking/cluster/docker-machine/default.nix
index 115dc3835fc55..3210842603207 100644
--- a/pkgs/applications/networking/cluster/docker-machine/default.nix
+++ b/pkgs/applications/networking/cluster/docker-machine/default.nix
@@ -24,7 +24,7 @@ buildGoPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://docs.docker.com/machine/;
+    homepage = "https://docs.docker.com/machine/";
     description = "Docker Machine is a tool that lets you install Docker Engine on virtual hosts, and manage Docker Engine on the hosts.";
     license = licenses.asl20;
     maintainers = with maintainers; [ offline tailhook ];
diff --git a/pkgs/applications/networking/cluster/docker-machine/hyperkit.nix b/pkgs/applications/networking/cluster/docker-machine/hyperkit.nix
index 716e9da8b7e5b..ba3b1e4d889b7 100644
--- a/pkgs/applications/networking/cluster/docker-machine/hyperkit.nix
+++ b/pkgs/applications/networking/cluster/docker-machine/hyperkit.nix
@@ -13,7 +13,7 @@ buildGoModule rec {
   '';
 
   meta = with lib; {
-    homepage = https://github.com/kubernetes/minikube/blob/master/docs/drivers.md;
+    homepage = "https://github.com/kubernetes/minikube/blob/master/docs/drivers.md";
     description = "HyperKit driver for docker-machine.";
     license = licenses.asl20;
     maintainers = with maintainers; [ atkinschang ];
diff --git a/pkgs/applications/networking/cluster/docker-machine/kvm.nix b/pkgs/applications/networking/cluster/docker-machine/kvm.nix
index de122dd2a5a24..9352ba69da88c 100644
--- a/pkgs/applications/networking/cluster/docker-machine/kvm.nix
+++ b/pkgs/applications/networking/cluster/docker-machine/kvm.nix
@@ -19,7 +19,7 @@ buildGoPackage rec {
   buildInputs = [ libvirt ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dhiltgen/docker-machine-kvm;
+    homepage = "https://github.com/dhiltgen/docker-machine-kvm";
     description = "KVM driver for docker-machine.";
     license = licenses.asl20;
     maintainers = with maintainers; [ offline ];
diff --git a/pkgs/applications/networking/cluster/docker-machine/kvm2.nix b/pkgs/applications/networking/cluster/docker-machine/kvm2.nix
index 609b7b02cbb46..6659b18b1bd26 100644
--- a/pkgs/applications/networking/cluster/docker-machine/kvm2.nix
+++ b/pkgs/applications/networking/cluster/docker-machine/kvm2.nix
@@ -13,7 +13,7 @@ buildGoModule rec {
   '';
 
   meta = with lib; {
-    homepage = https://github.com/kubernetes/minikube/blob/master/docs/drivers.md;
+    homepage = "https://github.com/kubernetes/minikube/blob/master/docs/drivers.md";
     description = "KVM2 driver for docker-machine.";
     license = licenses.asl20;
     maintainers = with maintainers; [ tadfisher atkinschang ];
diff --git a/pkgs/applications/networking/cluster/docker-machine/xhyve.nix b/pkgs/applications/networking/cluster/docker-machine/xhyve.nix
index 1f1e59a56a4e8..8c63a70b6d6e4 100644
--- a/pkgs/applications/networking/cluster/docker-machine/xhyve.nix
+++ b/pkgs/applications/networking/cluster/docker-machine/xhyve.nix
@@ -30,7 +30,7 @@ buildGoPackage rec {
   buildInputs = [ Hypervisor vmnet ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/machine-drivers/docker-machine-driver-xhyve;
+    homepage = "https://github.com/machine-drivers/docker-machine-driver-xhyve";
     description = "Xhyve driver for docker-machine.";
     license = licenses.bsd3;
     maintainers = with maintainers; [ periklis ];
diff --git a/pkgs/applications/networking/cluster/flink/default.nix b/pkgs/applications/networking/cluster/flink/default.nix
index f8c73c65991ca..3d418f9a47fb8 100644
--- a/pkgs/applications/networking/cluster/flink/default.nix
+++ b/pkgs/applications/networking/cluster/flink/default.nix
@@ -44,11 +44,11 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A distributed stream processing framework";
-    homepage = https://flink.apache.org;
-    downloadPage = https://flink.apache.org/downloads.html;
+    homepage = "https://flink.apache.org";
+    downloadPage = "https://flink.apache.org/downloads.html";
     license = licenses.asl20;
     platforms = platforms.all;
     maintainers = with maintainers; [ mbode ];
-    repositories.git = git://git.apache.org/flink.git;
+    repositories.git = "git://git.apache.org/flink.git";
   };
 }
diff --git a/pkgs/applications/networking/cluster/helm/default.nix b/pkgs/applications/networking/cluster/helm/default.nix
index 88ca9b3da9473..aee162ba6f22f 100644
--- a/pkgs/applications/networking/cluster/helm/default.nix
+++ b/pkgs/applications/networking/cluster/helm/default.nix
@@ -23,7 +23,7 @@ buildGoModule rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/kubernetes/helm;
+    homepage = "https://github.com/kubernetes/helm";
     description = "A package manager for kubernetes";
     license = licenses.asl20;
     maintainers = with maintainers; [ rlupton20 edude03 saschagrunert Frostman ];
diff --git a/pkgs/applications/networking/cluster/heptio-ark/default.nix b/pkgs/applications/networking/cluster/heptio-ark/default.nix
index b9413577b1044..21f4011f07065 100644
--- a/pkgs/applications/networking/cluster/heptio-ark/default.nix
+++ b/pkgs/applications/networking/cluster/heptio-ark/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "A utility for managing disaster recovery, specifically for your Kubernetes cluster resources and persistent volumes";
-    homepage = https://heptio.github.io/ark/;
+    homepage = "https://heptio.github.io/ark/";
     license = licenses.asl20;
     maintainers = [maintainers.mbode];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/cluster/jx/default.nix b/pkgs/applications/networking/cluster/jx/default.nix
index 88aa8777ee5ec..e2c0b663befab 100644
--- a/pkgs/applications/networking/cluster/jx/default.nix
+++ b/pkgs/applications/networking/cluster/jx/default.nix
@@ -28,7 +28,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description = "JX is a command line tool for installing and using Jenkins X.";
-    homepage = https://jenkins-x.io;
+    homepage = "https://jenkins-x.io";
     longDescription = ''
       Jenkins X provides automated CI+CD for Kubernetes with Preview
       Environments on Pull Requests using Jenkins, Knative Build, Prow,
diff --git a/pkgs/applications/networking/cluster/k3s/default.nix b/pkgs/applications/networking/cluster/k3s/default.nix
index 0fd5814386815..b18e1f08dd43d 100644
--- a/pkgs/applications/networking/cluster/k3s/default.nix
+++ b/pkgs/applications/networking/cluster/k3s/default.nix
@@ -66,7 +66,7 @@ let
     meta = {
       description = "CNI plugins, as patched by rancher for k3s";
       license = licenses.asl20;
-      homepage = https://k3s.io;
+      homepage = "https://k3s.io";
       maintainers = [ maintainers.euank ];
       platforms = platforms.linux;
     };
@@ -135,7 +135,7 @@ let
     meta = {
       description = "The various binaries that get packaged into the final k3s binary.";
       license = licenses.asl20;
-      homepage = https://k3s.io;
+      homepage = "https://k3s.io";
       maintainers = [ maintainers.euank ];
       platforms = platforms.linux;
     };
@@ -190,7 +190,7 @@ let
     meta = {
       description = "The k3s go binary which is used by the final wrapped output below.";
       license = licenses.asl20;
-      homepage = https://k3s.io;
+      homepage = "https://k3s.io";
       maintainers = [ maintainers.euank ];
       platforms = platforms.linux;
     };
@@ -228,7 +228,7 @@ stdenv.mkDerivation rec {
     meta = {
       description = "A lightweight Kubernetes distribution.";
       license = licenses.asl20;
-      homepage = https://k3s.io;
+      homepage = "https://k3s.io";
       maintainers = [ maintainers.euank ];
       platforms = platforms.linux;
     };
diff --git a/pkgs/applications/networking/cluster/kanif/default.nix b/pkgs/applications/networking/cluster/kanif/default.nix
index 52abc3189903d..ebf98840ee2ba 100644
--- a/pkgs/applications/networking/cluster/kanif/default.nix
+++ b/pkgs/applications/networking/cluster/kanif/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       directories to several nodes ('kaput' command), and to gather several
       remote files or directories locally ('kaget' command). It relies on TakTuk
       for efficiency and scalability.'';
-    homepage = http://taktuk.gforge.inria.fr/kanif;
+    homepage = "http://taktuk.gforge.inria.fr/kanif";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.bzizou ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/cluster/kontemplate/default.nix b/pkgs/applications/networking/cluster/kontemplate/default.nix
index 359b289dbbcdf..87ae71f6a48dc 100644
--- a/pkgs/applications/networking/cluster/kontemplate/default.nix
+++ b/pkgs/applications/networking/cluster/kontemplate/default.nix
@@ -20,7 +20,7 @@ buildGoPackage rec {
     license          = licenses.gpl3;
     maintainers      = with maintainers; [ mbode tazjin ];
     platforms        = platforms.unix;
-    repositories.git = git://github.com/tazjin/kontemplate.git;
+    repositories.git = "git://github.com/tazjin/kontemplate.git";
 
     longDescription = ''
       Kontemplate is a simple CLI tool that can take sets of
diff --git a/pkgs/applications/networking/cluster/kops/default.nix b/pkgs/applications/networking/cluster/kops/default.nix
index 0e71e91fbc1e4..a5f1806e57797 100644
--- a/pkgs/applications/networking/cluster/kops/default.nix
+++ b/pkgs/applications/networking/cluster/kops/default.nix
@@ -41,7 +41,7 @@ let
 
         meta = with stdenv.lib; {
           description = "Easiest way to get a production Kubernetes up and running";
-          homepage = https://github.com/kubernetes/kops;
+          homepage = "https://github.com/kubernetes/kops";
           license = licenses.asl20;
           maintainers = with maintainers; [ offline zimbatm kampka ];
           platforms = platforms.unix;
diff --git a/pkgs/applications/networking/cluster/kubecfg/default.nix b/pkgs/applications/networking/cluster/kubecfg/default.nix
index 69d013e3f0340..bf4ec94921570 100644
--- a/pkgs/applications/networking/cluster/kubecfg/default.nix
+++ b/pkgs/applications/networking/cluster/kubecfg/default.nix
@@ -17,7 +17,7 @@ buildGoPackage {
 
   meta = {
     description = "A tool for managing Kubernetes resources as code";
-    homepage = https://github.com/bitnami/kubecfg;
+    homepage = "https://github.com/bitnami/kubecfg";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ benley ];
     platforms = lib.platforms.unix;
diff --git a/pkgs/applications/networking/cluster/kubernetes/default.nix b/pkgs/applications/networking/cluster/kubernetes/default.nix
index 004e88ff44e47..f171f69bffcde 100644
--- a/pkgs/applications/networking/cluster/kubernetes/default.nix
+++ b/pkgs/applications/networking/cluster/kubernetes/default.nix
@@ -72,7 +72,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Production-Grade Container Scheduling and Management";
     license = licenses.asl20;
-    homepage = https://kubernetes.io;
+    homepage = "https://kubernetes.io";
     maintainers = with maintainers; [johanot offline saschagrunert];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/networking/cluster/kubetail/default.nix b/pkgs/applications/networking/cluster/kubetail/default.nix
index 779edad8de340..114c5f5af152e 100644
--- a/pkgs/applications/networking/cluster/kubetail/default.nix
+++ b/pkgs/applications/networking/cluster/kubetail/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       multiple pods into one stream. This is the same as running "kubectl logs
       -f " but for multiple pods.
     '';
-    homepage = https://github.com/johanhaleby/kubetail;
+    homepage = "https://github.com/johanhaleby/kubetail";
     license = licenses.asl20;
     maintainers = with maintainers; [ kalbasit ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/cluster/kubeval/default.nix b/pkgs/applications/networking/cluster/kubeval/default.nix
index 54be5956040c4..569baf6000ad3 100644
--- a/pkgs/applications/networking/cluster/kubeval/default.nix
+++ b/pkgs/applications/networking/cluster/kubeval/default.nix
@@ -15,7 +15,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description = "Validate your Kubernetes configuration files";
-    homepage = https://github.com/instrumenta/kubeval;
+    homepage = "https://github.com/instrumenta/kubeval";
     license = licenses.asl20;
     maintainers = with maintainers; [ nicknovitski ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/cluster/linkerd/default.nix b/pkgs/applications/networking/cluster/linkerd/default.nix
index 8c0265d149149..3d66a7c62f20e 100644
--- a/pkgs/applications/networking/cluster/linkerd/default.nix
+++ b/pkgs/applications/networking/cluster/linkerd/default.nix
@@ -17,7 +17,7 @@ buildGoModule {
 
   meta = with stdenv.lib; {
     description = "A service mesh for Kubernetes and beyond.";
-    homepage = https://linkerd.io/;
+    homepage = "https://linkerd.io/";
     license = licenses.asl20;
     maintainers = with maintainers; [ Gonzih ];
   };
diff --git a/pkgs/applications/networking/cluster/luigi/default.nix b/pkgs/applications/networking/cluster/luigi/default.nix
index af20be1b0da6c..010d8cf4d2152 100644
--- a/pkgs/applications/networking/cluster/luigi/default.nix
+++ b/pkgs/applications/networking/cluster/luigi/default.nix
@@ -18,7 +18,7 @@ python3Packages.buildPythonApplication rec {
   makeWrapperArgs = ["--prefix PYTHONPATH . :"];
 
   meta = with lib; {
-    homepage = https://github.com/spotify/luigi;
+    homepage = "https://github.com/spotify/luigi";
     description = "Python package that helps you build complex pipelines of batch jobs";
     longDescription = ''
       Luigi handles dependency resolution, workflow management, visualization,
diff --git a/pkgs/applications/networking/cluster/marathon/default.nix b/pkgs/applications/networking/cluster/marathon/default.nix
index b7decc0c14136..df571f4cf8690 100644
--- a/pkgs/applications/networking/cluster/marathon/default.nix
+++ b/pkgs/applications/networking/cluster/marathon/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     '';
 
   meta = with stdenv.lib; {
-    homepage = https://mesosphere.github.io/marathon;
+    homepage = "https://mesosphere.github.io/marathon";
     description = "Cluster-wide init and control system for services in cgroups or Docker containers";
     license = licenses.asl20;
     maintainers = with maintainers; [ kamilchm pradeepchhetri ];
diff --git a/pkgs/applications/networking/cluster/minikube/default.nix b/pkgs/applications/networking/cluster/minikube/default.nix
index f49f1768ced4a..ea1fec651439b 100644
--- a/pkgs/applications/networking/cluster/minikube/default.nix
+++ b/pkgs/applications/networking/cluster/minikube/default.nix
@@ -58,7 +58,7 @@ buildGoModule rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage    = https://github.com/kubernetes/minikube;
+    homepage    = "https://github.com/kubernetes/minikube";
     description = "A tool that makes it easy to run Kubernetes locally";
     license     = licenses.asl20;
     maintainers = with maintainers; [ ebzzry copumpkin vdemeester atkinschang ];
diff --git a/pkgs/applications/networking/cluster/minishift/default.nix b/pkgs/applications/networking/cluster/minishift/default.nix
index 43e960d9403ee..3dcfbf6fd7e39 100644
--- a/pkgs/applications/networking/cluster/minishift/default.nix
+++ b/pkgs/applications/networking/cluster/minishift/default.nix
@@ -59,7 +59,7 @@ in buildGoPackage rec {
       a single-node OpenShift cluster inside a VM. You can try out OpenShift
       or develop with it, day-to-day, on your local host.
     '';
-    homepage = https://github.com/minishift/minishift;
+    homepage = "https://github.com/minishift/minishift";
     maintainers = with maintainers; [ fpletz vdemeester ];
     platforms = platforms.linux;
     license = licenses.asl20;
diff --git a/pkgs/applications/networking/cluster/nomad/default.nix b/pkgs/applications/networking/cluster/nomad/default.nix
index 1243bf7db49d3..8e59671159ad3 100644
--- a/pkgs/applications/networking/cluster/nomad/default.nix
+++ b/pkgs/applications/networking/cluster/nomad/default.nix
@@ -32,7 +32,7 @@ buildGoPackage rec {
  '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.nomadproject.io/;
+    homepage = "https://www.nomadproject.io/";
     description = "A Distributed, Highly Available, Datacenter-Aware Scheduler";
     platforms = platforms.unix;
     license = licenses.mpl20;
diff --git a/pkgs/applications/networking/cluster/openshift/default.nix b/pkgs/applications/networking/cluster/openshift/default.nix
index fb88dfdbb6432..a9b0ed3fcb590 100644
--- a/pkgs/applications/networking/cluster/openshift/default.nix
+++ b/pkgs/applications/networking/cluster/openshift/default.nix
@@ -81,7 +81,7 @@ in buildGoPackage rec {
   meta = with stdenv.lib; {
     description = "Build, deploy, and manage your applications with Docker and Kubernetes";
     license = licenses.asl20;
-    homepage = http://www.openshift.org;
+    homepage = "http://www.openshift.org";
     maintainers = with maintainers; [offline bachp moretea];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/networking/cluster/pachyderm/default.nix b/pkgs/applications/networking/cluster/pachyderm/default.nix
index de0bb015852cf..65a4a19384305 100644
--- a/pkgs/applications/networking/cluster/pachyderm/default.nix
+++ b/pkgs/applications/networking/cluster/pachyderm/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
 
   meta = with lib; {
     description = "Containerized Data Analytics";
-    homepage = https://github.com/pachyderm/pachyderm;
+    homepage = "https://github.com/pachyderm/pachyderm";
     license = licenses.asl20;
     maintainers = with maintainers; [offline];
   };
diff --git a/pkgs/applications/networking/cluster/pig/default.nix b/pkgs/applications/networking/cluster/pig/default.nix
index 26c39f8cbe216..afcd736e629c6 100644
--- a/pkgs/applications/networking/cluster/pig/default.nix
+++ b/pkgs/applications/networking/cluster/pig/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://pig.apache.org/;
+    homepage = "https://pig.apache.org/";
     description = "High-level language for Apache Hadoop";
     license = licenses.asl20;
 
diff --git a/pkgs/applications/networking/cluster/spark/default.nix b/pkgs/applications/networking/cluster/spark/default.nix
index b8d4b947e3249..162585851d0c6 100644
--- a/pkgs/applications/networking/cluster/spark/default.nix
+++ b/pkgs/applications/networking/cluster/spark/default.nix
@@ -54,6 +54,6 @@ stdenv.mkDerivation rec {
     license          = stdenv.lib.licenses.asl20;
     platforms        = stdenv.lib.platforms.all;
     maintainers      = with maintainers; [ thoughtpolice offline kamilchm ];
-    repositories.git = git://git.apache.org/spark.git;
+    repositories.git = "git://git.apache.org/spark.git";
   };
 }
diff --git a/pkgs/applications/networking/cluster/taktuk/default.nix b/pkgs/applications/networking/cluster/taktuk/default.nix
index 3423163f59026..a5a2ace2399ba 100644
--- a/pkgs/applications/networking/cluster/taktuk/default.nix
+++ b/pkgs/applications/networking/cluster/taktuk/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       network to transport commands and perform I/Os multiplexing. It doesn't
       require any specific software on the nodes thanks to a self-propagation
       algorithm.'';
-    homepage = http://taktuk.gforge.inria.fr/;
+    homepage = "http://taktuk.gforge.inria.fr/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.bzizou ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/cluster/terraform-inventory/default.nix b/pkgs/applications/networking/cluster/terraform-inventory/default.nix
index 1bb8df88d0101..38fbd1b428656 100644
--- a/pkgs/applications/networking/cluster/terraform-inventory/default.nix
+++ b/pkgs/applications/networking/cluster/terraform-inventory/default.nix
@@ -19,7 +19,7 @@ buildGoPackage rec {
   goDeps = ./deps.nix;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/adammck/terraform-inventory;
+    homepage = "https://github.com/adammck/terraform-inventory";
     description = "Terraform state to ansible inventory adapter";
     platforms = platforms.all;
     license = licenses.mit;
diff --git a/pkgs/applications/networking/cluster/terraform-landscape/default.nix b/pkgs/applications/networking/cluster/terraform-landscape/default.nix
index 32f6680b2f8bd..903aa9abb6e2b 100644
--- a/pkgs/applications/networking/cluster/terraform-landscape/default.nix
+++ b/pkgs/applications/networking/cluster/terraform-landscape/default.nix
@@ -10,7 +10,7 @@ bundlerApp {
 
   meta = with lib; {
     description = "Improve Terraform's plan output to be easier to read and understand";
-    homepage    = https://github.com/coinbase/terraform-landscape;
+    homepage    = "https://github.com/coinbase/terraform-landscape";
     license     = with licenses; asl20;
     maintainers = with maintainers; [ mbode manveru nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/networking/cluster/terraform-providers/ibm/default.nix b/pkgs/applications/networking/cluster/terraform-providers/ibm/default.nix
index 06d7b8a9f073e..bd667dbc15f6e 100644
--- a/pkgs/applications/networking/cluster/terraform-providers/ibm/default.nix
+++ b/pkgs/applications/networking/cluster/terraform-providers/ibm/default.nix
@@ -29,7 +29,7 @@ buildGoPackage rec {
   postBuild = "mv go/bin/terraform-provider-ibm{,_v${version}}";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/IBM-Cloud/terraform-provider-ibm;
+    homepage = "https://github.com/IBM-Cloud/terraform-provider-ibm";
     description = "Terraform provider is used to manage IBM Cloud resources.";
     platforms = platforms.all;
     license = licenses.mpl20;
diff --git a/pkgs/applications/networking/cluster/terraform-providers/libvirt/default.nix b/pkgs/applications/networking/cluster/terraform-providers/libvirt/default.nix
index c2014a4d7bf13..daffb59309037 100644
--- a/pkgs/applications/networking/cluster/terraform-providers/libvirt/default.nix
+++ b/pkgs/applications/networking/cluster/terraform-providers/libvirt/default.nix
@@ -43,7 +43,7 @@ buildGoPackage rec {
   postBuild = "mv go/bin/terraform-provider-libvirt{,_v${version}}";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dmacvicar/terraform-provider-libvirt;
+    homepage = "https://github.com/dmacvicar/terraform-provider-libvirt";
     description = "Terraform provider for libvirt";
     platforms = platforms.linux;
     license = licenses.asl20;
diff --git a/pkgs/applications/networking/cluster/terragrunt/default.nix b/pkgs/applications/networking/cluster/terragrunt/default.nix
index 1058b21d3e955..26c969c671f47 100644
--- a/pkgs/applications/networking/cluster/terragrunt/default.nix
+++ b/pkgs/applications/networking/cluster/terragrunt/default.nix
@@ -29,7 +29,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "A thin wrapper for Terraform that supports locking for Terraform state and enforces best practices.";
-    homepage = https://github.com/gruntwork-io/terragrunt/;
+    homepage = "https://github.com/gruntwork-io/terragrunt/";
     license = licenses.mit;
     maintainers = with maintainers; [ peterhoeg ];
   };
diff --git a/pkgs/applications/networking/cluster/tilt/default.nix b/pkgs/applications/networking/cluster/tilt/default.nix
index 30fc9264ae1de..13f2c3d9bd9e4 100644
--- a/pkgs/applications/networking/cluster/tilt/default.nix
+++ b/pkgs/applications/networking/cluster/tilt/default.nix
@@ -22,7 +22,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Local development tool to manage your developer instance when your team deploys to Kubernetes in production";
-    homepage = https://tilt.dev/;
+    homepage = "https://tilt.dev/";
     license = licenses.asl20;
     maintainers = with maintainers; [ anton-dessiatov ];
   };
diff --git a/pkgs/applications/networking/davmail/default.nix b/pkgs/applications/networking/davmail/default.nix
index a84de6380668a..38a08aaf4c067 100644
--- a/pkgs/applications/networking/davmail/default.nix
+++ b/pkgs/applications/networking/davmail/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://davmail.sourceforge.net/;
+    homepage = "http://davmail.sourceforge.net/";
     description = "A Java application which presents a Microsoft Exchange server as local CALDAV, IMAP and SMTP servers";
     maintainers = [ maintainers.hinton ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/drive/default.nix b/pkgs/applications/networking/drive/default.nix
index 0967fd95dc0b1..ad1a0c9a533cd 100644
--- a/pkgs/applications/networking/drive/default.nix
+++ b/pkgs/applications/networking/drive/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
   goDeps = ./deps.nix;
 
   meta = with lib; {
-    homepage = https://github.com/odeke-em/drive;
+    homepage = "https://github.com/odeke-em/drive";
     description = "Google Drive client for the commandline";
     license = licenses.asl20;
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/droopy/default.nix b/pkgs/applications/networking/droopy/default.nix
index d71b863f881fb..f3f5f54f4092a 100644
--- a/pkgs/applications/networking/droopy/default.nix
+++ b/pkgs/applications/networking/droopy/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Mini Web server that let others upload files to your computer";
-    homepage = http://stackp.online.fr/droopy;
+    homepage = "http://stackp.online.fr/droopy";
     license = licenses.bsd3;
     maintainers = [ maintainers.Profpatsch ];
   };
diff --git a/pkgs/applications/networking/dropbox/default.nix b/pkgs/applications/networking/dropbox/default.nix
index 693a701821304..b3655888e1d33 100644
--- a/pkgs/applications/networking/dropbox/default.nix
+++ b/pkgs/applications/networking/dropbox/default.nix
@@ -77,7 +77,7 @@ buildFHSUserEnv {
 
   meta = with lib; {
     description = "Online stored folders (daemon version)";
-    homepage    = http://www.dropbox.com/;
+    homepage    = "http://www.dropbox.com/";
     license     = licenses.unfree;
     maintainers = with maintainers; [ ttuegel ];
     platforms   = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/networking/dyndns/cfdyndns/default.nix b/pkgs/applications/networking/dyndns/cfdyndns/default.nix
index e4612579e0fee..e72f50cd29ba6 100644
--- a/pkgs/applications/networking/dyndns/cfdyndns/default.nix
+++ b/pkgs/applications/networking/dyndns/cfdyndns/default.nix
@@ -24,7 +24,7 @@ buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "CloudFlare Dynamic DNS Client";
-    homepage = https://github.com/colemickens/cfdyndns;
+    homepage = "https://github.com/colemickens/cfdyndns";
     license = stdenv.lib.licenses.mit;
     maintainers = with maintainers; [ colemickens ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/networking/enhanced-ctorrent/default.nix b/pkgs/applications/networking/enhanced-ctorrent/default.nix
index 59b48df1cd039..76d6d39baf29b 100644
--- a/pkgs/applications/networking/enhanced-ctorrent/default.nix
+++ b/pkgs/applications/networking/enhanced-ctorrent/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
       CTorrent, a BitTorrent client implemented in C++, with bugfixes and
       performance enhancements.
     '';
-    homepage = http://www.rahul.net/dholmes/ctorrent/;
+    homepage = "http://www.rahul.net/dholmes/ctorrent/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/networking/errbot/default.nix b/pkgs/applications/networking/errbot/default.nix
index d5dc287ecac76..642677a9addc8 100644
--- a/pkgs/applications/networking/errbot/default.nix
+++ b/pkgs/applications/networking/errbot/default.nix
@@ -67,7 +67,7 @@ py.pkgs.buildPythonApplication rec {
 
   meta = with lib; {
     description = "Chatbot designed to be simple to extend with plugins written in Python";
-    homepage = http://errbot.io/;
+    homepage = "http://errbot.io/";
     maintainers = with maintainers; [ fpletz globin ];
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/esniper/default.nix b/pkgs/applications/networking/esniper/default.nix
index a1539bd71659d..0282483df8dc5 100644
--- a/pkgs/applications/networking/esniper/default.nix
+++ b/pkgs/applications/networking/esniper/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Simple, lightweight tool for sniping eBay auctions";
-    homepage    = http://esniper.sourceforge.net;
+    homepage    = "http://esniper.sourceforge.net";
     license     = licenses.gpl2;
     maintainers = with maintainers; [ lovek323 peti ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/networking/feedreaders/canto-curses/default.nix b/pkgs/applications/networking/feedreaders/canto-curses/default.nix
index 36b4732ca2e7c..80106085e1b6b 100644
--- a/pkgs/applications/networking/feedreaders/canto-curses/default.nix
+++ b/pkgs/applications/networking/feedreaders/canto-curses/default.nix
@@ -24,7 +24,7 @@ python3Packages.buildPythonApplication rec {
       unreadable white text. An interface with almost infinite customization
       and extensibility using the excellent Python programming language.
     '';
-    homepage = https://codezen.org/canto-ng/;
+    homepage = "https://codezen.org/canto-ng/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/networking/feedreaders/canto-daemon/default.nix b/pkgs/applications/networking/feedreaders/canto-daemon/default.nix
index e700c5634ad65..b8279f22de4d0 100644
--- a/pkgs/applications/networking/feedreaders/canto-daemon/default.nix
+++ b/pkgs/applications/networking/feedreaders/canto-daemon/default.nix
@@ -23,7 +23,7 @@ python3Packages.buildPythonApplication rec {
       unreadable white text. An interface with almost infinite customization
       and extensibility using the excellent Python programming language.
     '';
-    homepage = https://codezen.org/canto-ng/;
+    homepage = "https://codezen.org/canto-ng/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/networking/feedreaders/feedreader/default.nix b/pkgs/applications/networking/feedreaders/feedreader/default.nix
index c336d2d0bba65..f399aeaa98d10 100644
--- a/pkgs/applications/networking/feedreaders/feedreader/default.nix
+++ b/pkgs/applications/networking/feedreaders/feedreader/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A modern desktop application designed to complement existing web-based RSS accounts";
-    homepage = https://jangernert.github.io/FeedReader/;
+    homepage = "https://jangernert.github.io/FeedReader/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ edwtjo worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/feedreaders/rawdog/default.nix b/pkgs/applications/networking/feedreaders/rawdog/default.nix
index 7304fd2f654be..9fdee56b99b4a 100644
--- a/pkgs/applications/networking/feedreaders/rawdog/default.nix
+++ b/pkgs/applications/networking/feedreaders/rawdog/default.nix
@@ -14,7 +14,7 @@ python2Packages.buildPythonApplication rec {
   namePrefix = "";
 
   meta = with stdenv.lib; {
-    homepage = https://offog.org/code/rawdog/;
+    homepage = "https://offog.org/code/rawdog/";
     description = "RSS Aggregator Without Delusions Of Grandeur";
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/feedreaders/rss2email/default.nix b/pkgs/applications/networking/feedreaders/rss2email/default.nix
index 07f3f3fde0aa8..18f154d3ff741 100644
--- a/pkgs/applications/networking/feedreaders/rss2email/default.nix
+++ b/pkgs/applications/networking/feedreaders/rss2email/default.nix
@@ -37,7 +37,7 @@ buildPythonApplication rec {
 
   meta = with lib; {
     description = "A tool that converts RSS/Atom newsfeeds to email.";
-    homepage = https://pypi.python.org/pypi/rss2email;
+    homepage = "https://pypi.python.org/pypi/rss2email";
     license = licenses.gpl2;
     maintainers = with maintainers; [ jb55 Profpatsch ];
   };
diff --git a/pkgs/applications/networking/feedreaders/rssguard/default.nix b/pkgs/applications/networking/feedreaders/rssguard/default.nix
index 2bb592bfb42c1..d0825404f0176 100644
--- a/pkgs/applications/networking/feedreaders/rssguard/default.nix
+++ b/pkgs/applications/networking/feedreaders/rssguard/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       developed using Qt framework and with online feed synchronization support
       for ownCloud/Nextcloud.
     '';
-    homepage = https://github.com/martinrotter/rssguard;
+    homepage = "https://github.com/martinrotter/rssguard";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ jluttine ];
diff --git a/pkgs/applications/networking/feedreaders/rsstail/default.nix b/pkgs/applications/networking/feedreaders/rsstail/default.nix
index 3e7909c91c056..49c97b3c49fc4 100644
--- a/pkgs/applications/networking/feedreaders/rsstail/default.nix
+++ b/pkgs/applications/networking/feedreaders/rsstail/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
       RSSTail is more or less an RSS reader: it monitors an RSS feed and if it
       detects a new entry it'll emit only that new entry.
     '';
-    homepage = http://www.vanheusden.com/rsstail/;
+    homepage = "http://www.vanheusden.com/rsstail/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/firehol/default.nix b/pkgs/applications/networking/firehol/default.nix
index ab2ca1601520b..c6e8ab5c887b1 100644
--- a/pkgs/applications/networking/firehol/default.nix
+++ b/pkgs/applications/networking/firehol/default.nix
@@ -100,7 +100,7 @@ stdenv.mkDerivation rec {
       FireHOL, an iptables stateful packet filtering firewall for humans!
       FireQOS, a TC based bandwidth shaper for humans!
     '';
-    homepage = https://firehol.org/;
+    homepage = "https://firehol.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ geistesk ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/firehol/iprange.nix b/pkgs/applications/networking/firehol/iprange.nix
index 194dfc25ebaac..e47afba02945e 100644
--- a/pkgs/applications/networking/firehol/iprange.nix
+++ b/pkgs/applications/networking/firehol/iprange.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "manage IP ranges";
-    homepage = https://github.com/firehol/iprange;
+    homepage = "https://github.com/firehol/iprange";
     license = licenses.gpl2;
     maintainers = with maintainers; [ geistesk ];
   };
diff --git a/pkgs/applications/networking/flent/http-getter.nix b/pkgs/applications/networking/flent/http-getter.nix
index 2bebf4b09601a..a38ac8511c234 100644
--- a/pkgs/applications/networking/flent/http-getter.nix
+++ b/pkgs/applications/networking/flent/http-getter.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   buildInputs = [ cmake pkgconfig curl ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/tohojo/http-getter;
+    homepage = "https://github.com/tohojo/http-getter";
     description = "Simple getter for HTTP URLs using cURL";
     platforms = platforms.unix;
     license = licenses.gpl3;
diff --git a/pkgs/applications/networking/ftp/taxi/default.nix b/pkgs/applications/networking/ftp/taxi/default.nix
index cb40c347e1cfa..b6c8a534545bd 100644
--- a/pkgs/applications/networking/ftp/taxi/default.nix
+++ b/pkgs/applications/networking/ftp/taxi/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The FTP Client that drives you anywhere";
-    homepage    = https://github.com/Alecaddd/taxi;
+    homepage    = "https://github.com/Alecaddd/taxi";
     license     = licenses.gpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/networking/gdrive/default.nix b/pkgs/applications/networking/gdrive/default.nix
index 4a4c93128dfee..c5a5d1e970a6d 100644
--- a/pkgs/applications/networking/gdrive/default.nix
+++ b/pkgs/applications/networking/gdrive/default.nix
@@ -15,7 +15,7 @@ buildGoPackage rec {
   };
 
   meta = with stdenv.lib; {
-    homepage    = https://github.com/prasmussen/gdrive;
+    homepage    = "https://github.com/prasmussen/gdrive";
     description = "A command line utility for interacting with Google Drive";
     platforms   = platforms.unix;
     license     = licenses.mit;
diff --git a/pkgs/applications/networking/gmailieer/default.nix b/pkgs/applications/networking/gmailieer/default.nix
index a20728e2199f7..2acc838e4a4f0 100644
--- a/pkgs/applications/networking/gmailieer/default.nix
+++ b/pkgs/applications/networking/gmailieer/default.nix
@@ -27,8 +27,8 @@ python3Packages.buildPythonApplication rec {
       tags in the notmuch database may be pushed back remotely to your
       GMail account.
     '';
-    homepage         = https://github.com/gauteh/gmailieer;
-    repositories.git = https://github.com/gauteh/gmailieer.git;
+    homepage         = "https://github.com/gauteh/gmailieer";
+    repositories.git = "https://github.com/gauteh/gmailieer.git";
     license          = licenses.gpl3Plus;
     maintainers      = with maintainers; [ kaiha ];
   };
diff --git a/pkgs/applications/networking/google-drive-ocamlfuse/default.nix b/pkgs/applications/networking/google-drive-ocamlfuse/default.nix
index 830eae1fc2818..5465a27bbf2d2 100644
--- a/pkgs/applications/networking/google-drive-ocamlfuse/default.nix
+++ b/pkgs/applications/networking/google-drive-ocamlfuse/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   installPhase = "mkdir $out && dune install --prefix $out";
 
   meta = {
-    homepage = http://gdfuse.forge.ocamlcore.org/;
+    homepage = "http://gdfuse.forge.ocamlcore.org/";
     description = "A FUSE-based file system backed by Google Drive, written in OCaml";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/gopher/gopher/default.nix b/pkgs/applications/networking/gopher/gopher/default.nix
index f90e35ca7e2e5..4e57163864427 100644
--- a/pkgs/applications/networking/gopher/gopher/default.nix
+++ b/pkgs/applications/networking/gopher/gopher/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   preConfigure = "export LIBS=-lncurses";
 
   meta = with stdenv.lib; {
-    homepage = http://gopher.quux.org:70/devel/gopher;
+    homepage = "http://gopher.quux.org:70/devel/gopher";
     description = "A ncurses gopher client";
     platforms = platforms.linux; # clang doesn't like local regex.h
     license = licenses.gpl2;
diff --git a/pkgs/applications/networking/gopher/gopherclient/default.nix b/pkgs/applications/networking/gopher/gopherclient/default.nix
index 45d9235afc98d..40e9401a40d25 100644
--- a/pkgs/applications/networking/gopher/gopherclient/default.nix
+++ b/pkgs/applications/networking/gopher/gopherclient/default.nix
@@ -35,7 +35,7 @@ buildGoPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/prologic/gopherclient;
+    homepage = "https://github.com/prologic/gopherclient";
     description = "Gopher Qt GUI client";
     license = licenses.mit;
     maintainers = with maintainers; [ orivej ];
diff --git a/pkgs/applications/networking/ids/daq/default.nix b/pkgs/applications/networking/ids/daq/default.nix
index 9af105ad52eb6..871aba0a669f4 100644
--- a/pkgs/applications/networking/ids/daq/default.nix
+++ b/pkgs/applications/networking/ids/daq/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Data AcQuisition library (DAQ), for packet I/O";
-    homepage = https://www.snort.org;
+    homepage = "https://www.snort.org";
     maintainers = with stdenv.lib.maintainers; [ aycanirican ];
     license = stdenv.lib.licenses.gpl2;
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/ids/snort/default.nix b/pkgs/applications/networking/ids/snort/default.nix
index 88df3857ec149..92415148ed5e0 100644
--- a/pkgs/applications/networking/ids/snort/default.nix
+++ b/pkgs/applications/networking/ids/snort/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   
   meta = {
     description = "Network intrusion prevention and detection system (IDS/IPS)";
-    homepage = https://www.snort.org;
+    homepage = "https://www.snort.org";
     maintainers = with stdenv.lib.maintainers; [ aycanirican ];
     license = stdenv.lib.licenses.gpl2;
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/ike/default.nix b/pkgs/applications/networking/ike/default.nix
index 0b0491ffb8617..93858ba3027ce 100644
--- a/pkgs/applications/networking/ike/default.nix
+++ b/pkgs/applications/networking/ike/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.shrew.net/software;
+    homepage = "https://www.shrew.net/software";
     description = "IPsec Client for FreeBSD, NetBSD and many Linux based operating systems";
     platforms = platforms.unix;
     maintainers = [ maintainers.domenkozar ];
diff --git a/pkgs/applications/networking/instant-messengers/SkypeExport/default.nix b/pkgs/applications/networking/instant-messengers/SkypeExport/default.nix
index 716989c7b565e..f5ec3d7b6bd04 100644
--- a/pkgs/applications/networking/instant-messengers/SkypeExport/default.nix
+++ b/pkgs/applications/networking/instant-messengers/SkypeExport/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Export Skype history to HTML";
-    homepage = https://github.com/Temptin/SkypeExport;
+    homepage = "https://github.com/Temptin/SkypeExport";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ yegortimoshenko ];
diff --git a/pkgs/applications/networking/instant-messengers/amsn/default.nix b/pkgs/applications/networking/instant-messengers/amsn/default.nix
index 6ff51445718b2..60d4ec829cc25 100644
--- a/pkgs/applications/networking/instant-messengers/amsn/default.nix
+++ b/pkgs/applications/networking/instant-messengers/amsn/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "amsn-0.98.9";
   src = fetchurl {
-    url = mirror://sourceforge/amsn/amsn-0.98.9-src.tar.gz;
+    url = "mirror://sourceforge/amsn/amsn-0.98.9-src.tar.gz";
     sha256 = "0b8ir7spxnsz8f7kvr9f1k91nsy8cb65q6jv2l55b04fl20x4z7r";
   };
 
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Instant messaging (MSN Messenger clone)";
-    homepage = http://amsn-project.net;
+    homepage = "http://amsn-project.net";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2;
   };
diff --git a/pkgs/applications/networking/instant-messengers/baresip/default.nix b/pkgs/applications/networking/instant-messengers/baresip/default.nix
index a3497df1716cd..ace546227b931 100644
--- a/pkgs/applications/networking/instant-messengers/baresip/default.nix
+++ b/pkgs/applications/networking/instant-messengers/baresip/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
     -DHAVE_INTTYPES_H -D__GLIBC__
     -D__need_timeval -D__need_timespec -D__need_time_t '';
   meta = {
-    homepage = http://www.creytiv.com/baresip.html;
+    homepage = "http://www.creytiv.com/baresip.html";
     platforms = with stdenv.lib.platforms; linux;
     maintainers = with stdenv.lib.maintainers; [raskin];
     license = stdenv.lib.licenses.bsd3;
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee-discord/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee-discord/default.nix
index 5094a13119f76..52f8bb918743f 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee-discord/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee-discord/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Bitlbee plugin for Discord";
 
-    homepage = https://github.com/sm00th/bitlbee-discord;
+    homepage = "https://github.com/sm00th/bitlbee-discord";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ lassulus jb55 ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix
index 84067dc5f19d7..78016065610b7 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "The Facebook protocol plugin for bitlbee";
 
-    homepage = https://github.com/bitlbee/bitlbee-facebook;
+    homepage = "https://github.com/bitlbee/bitlbee-facebook";
     license = licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix
index 798dab2b646db..14a3319c14901 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Steam protocol plugin for BitlBee";
 
-    homepage = https://github.com/jgeboski/bitlbee-steam;
+    homepage = "https://github.com/jgeboski/bitlbee-steam";
     license = licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
index 917610216aeb0..cf3f2549c8104 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
       Messenger, AIM and ICQ.
     '';
 
-    homepage = https://www.bitlbee.org/;
+    homepage = "https://www.bitlbee.org/";
     license = licenses.gpl2Plus;
 
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/networking/instant-messengers/blink/default.nix b/pkgs/applications/networking/instant-messengers/blink/default.nix
index b6e13fe403db8..f383daa6fd029 100644
--- a/pkgs/applications/networking/instant-messengers/blink/default.nix
+++ b/pkgs/applications/networking/instant-messengers/blink/default.nix
@@ -7,7 +7,7 @@ mkDerivationWith pythonPackages.buildPythonApplication rec {
   version = "3.2.0";
 
   src = fetchdarcs {
-    url = http://devel.ag-projects.com/repositories/blink-qt;
+    url = "http://devel.ag-projects.com/repositories/blink-qt";
     rev = "release-${version}";
     sha256 = "19rcwr5scw48qnj79q1pysw95fz9h98nyc3161qy2kph5g7dwkc3";
   };
@@ -59,7 +59,7 @@ mkDerivationWith pythonPackages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://icanblink.com/;
+    homepage = "http://icanblink.com/";
     description = "A state of the art, easy to use SIP client for Voice, Video and IM";
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/networking/instant-messengers/centerim/default.nix b/pkgs/applications/networking/instant-messengers/centerim/default.nix
index daffb539676fe..52d8178764c5a 100644
--- a/pkgs/applications/networking/instant-messengers/centerim/default.nix
+++ b/pkgs/applications/networking/instant-messengers/centerim/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = {
-    homepage = http://www.centerim.org/;
+    homepage = "http://www.centerim.org/";
     description = "Fork of CenterICQ, a curses instant messaging program";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/instant-messengers/coyim/default.nix b/pkgs/applications/networking/instant-messengers/coyim/default.nix
index e507d986510c7..67c2a0db2372a 100644
--- a/pkgs/applications/networking/instant-messengers/coyim/default.nix
+++ b/pkgs/applications/networking/instant-messengers/coyim/default.nix
@@ -20,7 +20,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "a safe and secure chat client";
-    homepage = https://coy.im/;
+    homepage = "https://coy.im/";
     license = licenses.gpl3;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/instant-messengers/dino/default.nix b/pkgs/applications/networking/instant-messengers/dino/default.nix
index 9cf0032cf49fa..035878b8e0082 100644
--- a/pkgs/applications/networking/instant-messengers/dino/default.nix
+++ b/pkgs/applications/networking/instant-messengers/dino/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Modern Jabber/XMPP Client using GTK/Vala";
-    homepage = https://github.com/dino/dino;
+    homepage = "https://github.com/dino/dino";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ mic92 qyliss ];
diff --git a/pkgs/applications/networking/instant-messengers/fractal/default.nix b/pkgs/applications/networking/instant-messengers/fractal/default.nix
index 47153779e4032..05767d1a9cd6f 100644
--- a/pkgs/applications/networking/instant-messengers/fractal/default.nix
+++ b/pkgs/applications/networking/instant-messengers/fractal/default.nix
@@ -80,7 +80,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Matrix group messaging app";
-    homepage = https://gitlab.gnome.org/GNOME/fractal;
+    homepage = "https://gitlab.gnome.org/GNOME/fractal";
     license = licenses.gpl3;
     maintainers = with maintainers; [ dtzWill worldofpeace ];
   };
diff --git a/pkgs/applications/networking/instant-messengers/franz/default.nix b/pkgs/applications/networking/instant-messengers/franz/default.nix
index 605550beb50ec..0c5090574fa68 100644
--- a/pkgs/applications/networking/instant-messengers/franz/default.nix
+++ b/pkgs/applications/networking/instant-messengers/franz/default.nix
@@ -48,7 +48,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A free messaging app that combines chat & messaging services into one application";
-    homepage = https://meetfranz.com;
+    homepage = "https://meetfranz.com";
     license = licenses.free;
     maintainers = [ maintainers.davidtwco ];
     platforms = ["x86_64-linux"];
diff --git a/pkgs/applications/networking/instant-messengers/gajim/default.nix b/pkgs/applications/networking/instant-messengers/gajim/default.nix
index 1fd8c47a99c23..b2be635728d73 100644
--- a/pkgs/applications/networking/instant-messengers/gajim/default.nix
+++ b/pkgs/applications/networking/instant-messengers/gajim/default.nix
@@ -59,7 +59,7 @@ python3.pkgs.buildPythonApplication rec {
   '';
 
   meta = {
-    homepage = http://gajim.org/;
+    homepage = "http://gajim.org/";
     description = "Jabber client written in PyGTK";
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ raskin aszlig abbradar ];
diff --git a/pkgs/applications/networking/instant-messengers/gtmess/default.nix b/pkgs/applications/networking/instant-messengers/gtmess/default.nix
index 3e16a58f54bb0..0661e6d7525ed 100644
--- a/pkgs/applications/networking/instant-messengers/gtmess/default.nix
+++ b/pkgs/applications/networking/instant-messengers/gtmess/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "gtmess-0.97";
 
   src = fetchurl {
-    url = mirror://sourceforge/gtmess/gtmess-0.97.tar.gz;
+    url = "mirror://sourceforge/gtmess/gtmess-0.97.tar.gz";
     sha256 = "1ipmqsrj0r1ssbgs2fpr4x5vnzlxlqhx9jrnadp1jw7s0sxpjqv0";
   };
 
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Console MSN Messenger client for Linux and other unix systems";
-    homepage = http://gtmess.sourceforge.net/;
+    homepage = "http://gtmess.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
   };
diff --git a/pkgs/applications/networking/instant-messengers/hipchat/default.nix b/pkgs/applications/networking/instant-messengers/hipchat/default.nix
index 47854683e0ed5..7213332a549a6 100644
--- a/pkgs/applications/networking/instant-messengers/hipchat/default.nix
+++ b/pkgs/applications/networking/instant-messengers/hipchat/default.nix
@@ -80,7 +80,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Desktop client for HipChat services";
-    homepage = http://www.hipchat.com;
+    homepage = "http://www.hipchat.com";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ puffnfresh ];
diff --git a/pkgs/applications/networking/instant-messengers/jackline/default.nix b/pkgs/applications/networking/instant-messengers/jackline/default.nix
index 169ddf65b29cd..b3fc9d1051510 100644
--- a/pkgs/applications/networking/instant-messengers/jackline/default.nix
+++ b/pkgs/applications/networking/instant-messengers/jackline/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   inherit (ocamlPackages.topkg) installPhase;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/hannesm/jackline;
+    homepage = "https://github.com/hannesm/jackline";
     description = "Terminal-based XMPP client in OCaml";
     license = licenses.bsd2;
     maintainers = with maintainers; [ sternenseemann ];
diff --git a/pkgs/applications/networking/instant-messengers/jitsi/default.nix b/pkgs/applications/networking/instant-messengers/jitsi/default.nix
index 7e01f97fe0dfb..13013dc4c7533 100644
--- a/pkgs/applications/networking/instant-messengers/jitsi/default.nix
+++ b/pkgs/applications/networking/instant-messengers/jitsi/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://jitsi.org/;
+    homepage = "https://jitsi.org/";
     description = "Open Source Video Calls and Chat";
     license = licenses.lgpl21Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/linphone/default.nix b/pkgs/applications/networking/instant-messengers/linphone/default.nix
index b1927395a5705..ced6f91fa1c8b 100644
--- a/pkgs/applications/networking/instant-messengers/linphone/default.nix
+++ b/pkgs/applications/networking/instant-messengers/linphone/default.nix
@@ -230,7 +230,7 @@ mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = https://www.linphone.org/;
+    homepage = "https://www.linphone.org/";
     description = "Open source SIP phone for voice/video calls and instant messaging";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/matrix-recorder/node-packages.nix b/pkgs/applications/networking/instant-messengers/matrix-recorder/node-packages.nix
index 012ad195a71b9..577619dcc04ef 100644
--- a/pkgs/applications/networking/instant-messengers/matrix-recorder/node-packages.nix
+++ b/pkgs/applications/networking/instant-messengers/matrix-recorder/node-packages.nix
@@ -784,7 +784,7 @@ let
       version = "2.3.0";
       src = fetchurl {
         name = "olm-2.3.0.tar.gz";
-        url = https://packages.matrix.org/npm/olm/olm-2.3.0.tgz;
+        url = "https://packages.matrix.org/npm/olm/olm-2.3.0.tgz";
         sha256 = "1f0f037a025a44509646cb849ded7c1a1f55e7bfed240fad19676c002fcd953a";
       };
     };
diff --git a/pkgs/applications/networking/instant-messengers/mattermost-desktop/default.nix b/pkgs/applications/networking/instant-messengers/mattermost-desktop/default.nix
index dbfc87b8e8d43..0a41c9666b68e 100644
--- a/pkgs/applications/networking/instant-messengers/mattermost-desktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/mattermost-desktop/default.nix
@@ -90,7 +90,7 @@ in
 
     meta = with stdenv.lib; {
       description = "Mattermost Desktop client";
-      homepage    = https://about.mattermost.com/;
+      homepage    = "https://about.mattermost.com/";
       license     = licenses.asl20;
       platforms   = [ "x86_64-linux" "i686-linux" ];
       maintainers = [ maintainers.joko ];
diff --git a/pkgs/applications/networking/instant-messengers/mcabber/default.nix b/pkgs/applications/networking/instant-messengers/mcabber/default.nix
index f411112371144..98b326820b9fc 100644
--- a/pkgs/applications/networking/instant-messengers/mcabber/default.nix
+++ b/pkgs/applications/networking/instant-messengers/mcabber/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = http://mcabber.com/;
+    homepage = "http://mcabber.com/";
     description = "Small Jabber console client";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/networking/instant-messengers/mikutter/default.nix b/pkgs/applications/networking/instant-messengers/mikutter/default.nix
index 7d2037d16a777..5c86157f50231 100644
--- a/pkgs/applications/networking/instant-messengers/mikutter/default.nix
+++ b/pkgs/applications/networking/instant-messengers/mikutter/default.nix
@@ -74,7 +74,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An extensible Twitter client";
-    homepage = https://mikutter.hachune.net;
+    homepage = "https://mikutter.hachune.net";
     platforms = ruby.meta.platforms;
     license = licenses.mit;
     broken = true;
diff --git a/pkgs/applications/networking/instant-messengers/mm/default.nix b/pkgs/applications/networking/instant-messengers/mm/default.nix
index 7122a509215df..3bdfcbfe7d1d1 100644
--- a/pkgs/applications/networking/instant-messengers/mm/default.nix
+++ b/pkgs/applications/networking/instant-messengers/mm/default.nix
@@ -15,7 +15,7 @@ buildGoPackage {
 
   meta = {
     description = "A file system based matrix client";
-    homepage = https://gitlab.com/meutraa/mm;
+    homepage = "https://gitlab.com/meutraa/mm";
     license = stdenv.lib.licenses.isc;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/nheko/default.nix b/pkgs/applications/networking/instant-messengers/nheko/default.nix
index f214f72214388..1938bae4f74c1 100644
--- a/pkgs/applications/networking/instant-messengers/nheko/default.nix
+++ b/pkgs/applications/networking/instant-messengers/nheko/default.nix
@@ -71,7 +71,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Desktop client for the Matrix protocol";
-    homepage = https://github.com/Nheko-Reborn/nheko;
+    homepage = "https://github.com/Nheko-Reborn/nheko";
     maintainers = with maintainers; [ ekleog fpletz ];
     platforms = platforms.unix;
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/networking/instant-messengers/oysttyer/default.nix b/pkgs/applications/networking/instant-messengers/oysttyer/default.nix
index 3b3b0c2fd6618..e3595e07a788c 100644
--- a/pkgs/applications/networking/instant-messengers/oysttyer/default.nix
+++ b/pkgs/applications/networking/instant-messengers/oysttyer/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     inherit version;
     description = "Perl Console Twitter Client";
-    homepage    = http://oysttyer.github.io/;
+    homepage    = "http://oysttyer.github.io/";
     maintainers = with maintainers; [ woffs ];
     license = with licenses; [ ffsl ];
   };
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/carbons/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/carbons/default.nix
index 079fc7d57fb1d..18511630c93ec 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/carbons/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/carbons/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libxml2 pidgin ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/gkdr/carbons;
+    homepage = "https://github.com/gkdr/carbons";
     description = "XEP-0280: Message Carbons plugin for libpurple";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/msn-pecan/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/msn-pecan/default.nix
index 4521494430960..eccb8de31e59b 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/msn-pecan/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/msn-pecan/default.nix
@@ -3,13 +3,13 @@
 stdenv.mkDerivation {
   name = "pidgin-msn-pecan-0.1.4";
   src = fetchurl {
-    url = http://msn-pecan.googlecode.com/files/msn-pecan-0.1.4.tar.bz2;
+    url = "http://msn-pecan.googlecode.com/files/msn-pecan-0.1.4.tar.bz2";
     sha256 = "0d43z2ay9is1r2kkc9my8pz0fwdyzv7k19vdmbird18lg7rlbjd2";
   };
 
   meta = {
     description = "Alternative MSN protocol plug-in for Pidgin IM";
-    homepage = https://github.com/felipec/msn-pecan;
+    homepage = "https://github.com/felipec/msn-pecan";
     platforms = stdenv.lib.platforms.linux;
   };
 
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
index 9f5c246ede634..bdc16d101f556 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libotr pidgin intltool ];
 
   meta = with stdenv.lib; {
-    homepage = https://otr.cypherpunks.ca/;
+    homepage = "https://otr.cypherpunks.ca/";
     description = "Plugin for Pidgin 2.x which implements OTR Messaging";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-latex/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-latex/default.nix
index bfd4b1abd5e56..1fd248e0c89d9 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-latex/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-latex/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   };
 
   meta = with stdenv.lib; {
-    homepage = https://sourceforge.net/projects/pidgin-latex/;
+    homepage = "https://sourceforge.net/projects/pidgin-latex/";
     description = "LaTeX rendering plugin for Pidgin IM";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-mra/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-mra/default.nix
index 3555e5a7197bf..13e165ad7a13e 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-mra/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-mra/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
   ];
 
   meta = {
-    homepage = https://github.com/dreadatour/pidgin-mra;
+    homepage = "https://github.com/dreadatour/pidgin-mra";
     description = "Mail.ru Agent plugin for Pidgin / libpurple";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-opensteamworks/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-opensteamworks/default.nix
index 6d527f3a7e46f..067a71a93dd52 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-opensteamworks/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-opensteamworks/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/EionRobb/pidgin-opensteamworks;
+    homepage = "https://github.com/EionRobb/pidgin-opensteamworks";
     description = "Plugin for Pidgin 2.x which implements Steam Friends/Steam IM compatibility";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-osd/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-osd/default.nix
index ff065e7e2ce33..bf9979c19f257 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-osd/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-osd/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ xosd pidgin ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mbroemme/pidgin-osd;
+    homepage = "https://github.com/mbroemme/pidgin-osd";
     description = "Plugin for Pidgin which implements on-screen display via libxosd";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-skypeweb/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-skypeweb/default.nix
index c418b2e992a87..cae84c054e89f 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-skypeweb/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-skypeweb/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   PKG_CONFIG_PURPLE_DATADIR = "${placeholder "out"}/share";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/EionRobb/skype4pidgin;
+    homepage = "https://github.com/EionRobb/skype4pidgin";
     description = "SkypeWeb plugin for Pidgin";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-xmpp-receipts/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-xmpp-receipts/default.nix
index 7302ba89a715f..463b6326b5a24 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-xmpp-receipts/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/pidgin-xmpp-receipts/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://devel.kondorgulasch.de/pidgin-xmpp-receipts/;
+    homepage = "http://devel.kondorgulasch.de/pidgin-xmpp-receipts/";
     description = "Message delivery receipts (XEP-0184) Pidgin plugin";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-discord/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-discord/default.nix
index 6695f8cb69b84..0322005ae9352 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-discord/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-discord/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
   PKG_CONFIG_PURPLE_DATADIR = "${placeholder "out"}/share";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/EionRobb/purple-discord;
+    homepage = "https://github.com/EionRobb/purple-discord";
     description = "Discord plugin for Pidgin";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-hangouts/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-hangouts/default.nix
index 5d2292b50ad0c..204d99f6d7aba 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-hangouts/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-hangouts/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   PKG_CONFIG_PURPLE_DATADIR = "${placeholder "out"}/share";
 
   meta = with stdenv.lib; {
-    homepage = https://bitbucket.org/EionRobb/purple-hangouts;
+    homepage = "https://bitbucket.org/EionRobb/purple-hangouts";
     description = "Native Hangouts support for pidgin";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-lurch/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-lurch/default.nix
index e488ae73be008..0a6aa1a133d6e 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-lurch/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-lurch/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/gkdr/lurch;
+    homepage = "https://github.com/gkdr/lurch";
     description = "XEP-0384: OMEMO Encryption for libpurple";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-matrix/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-matrix/default.nix
index e9a0812e925b1..999235314fe6f 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-matrix/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-matrix/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/matrix-org/purple-matrix;
+    homepage = "https://github.com/matrix-org/purple-matrix";
     description = "Matrix support for Pidgin / libpurple";
     license = licenses.gpl2;
     maintainers = with maintainers; [ symphorien ];
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-plugin-pack/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-plugin-pack/default.nix
index 8022d32a081af..6739befbfea48 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-plugin-pack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-plugin-pack/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ pidgin intltool python ];
 
   meta = with stdenv.lib; {
-    homepage = https://bitbucket.org/rekkanoryo/purple-plugin-pack;
+    homepage = "https://bitbucket.org/rekkanoryo/purple-plugin-pack";
     description = "Plugin pack for Pidgin 2.x";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix
index 10973345dec99..7d7abbd1eed6f 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
   PKG_CONFIG_PURPLE_DATAROOTDIR = "${placeholder "out"}/share";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dylex/slack-libpurple;
+    homepage = "https://github.com/dylex/slack-libpurple";
     description = "Slack plugin for Pidgin";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-vk-plugin/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-vk-plugin/default.nix
index edb4ca3c34951..76b242659e7ad 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-vk-plugin/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-vk-plugin/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   cmakeFlags = [ "-DCMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT=1" ];
 
   meta = {
-    homepage = https://bitbucket.org/olegoandreev/purple-vk-plugin;
+    homepage = "https://bitbucket.org/olegoandreev/purple-vk-plugin";
     description = "Vk (russian social network) plugin for Pidgin / libpurple";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-xmpp-http-upload/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-xmpp-http-upload/default.nix
index 83904531753b3..3277e12ec086d 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-xmpp-http-upload/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-xmpp-http-upload/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/Junker/purple-xmpp-http-upload;
+    homepage = "https://github.com/Junker/purple-xmpp-http-upload";
     description = "HTTP File Upload plugin for libpurple (XMPP Protocol XEP-0363)";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix
index 6657ff96b11fd..253d2ddfe24a2 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ pidgin libnotify gdk-pixbuf glib dbus dbus-glib ];
 
   meta = {
-    homepage = https://github.com/novas0x2a/skype4pidgin;
+    homepage = "https://github.com/novas0x2a/skype4pidgin";
     license = stdenv.lib.licenses.gpl3Plus;
     description = "Plugin to use a running skype account through pidgin";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/telegram-purple/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/telegram-purple/default.nix
index c38ff8f454e9d..38424ca25979b 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/telegram-purple/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/telegram-purple/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/majn/telegram-purple;
+    homepage = "https://github.com/majn/telegram-purple";
     description = "Telegram for Pidgin / libpurple";
     license = licenses.gpl2;
     maintainers = [ maintainers.jagajaga ];
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix
index 41f205514e763..de48ee26a6ed4 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/tox-prpl/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ autoreconfHook ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jin-eld/tox-prpl;
+    homepage = "https://github.com/jin-eld/tox-prpl";
     description = "Tox plugin for Pidgin / libpurple";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/window-merge/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/window-merge/default.nix
index 8f86256069ce9..f576f2ad9c3e7 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/window-merge/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/window-merge/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ pidgin ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dm0-/window_merge;
+    homepage = "https://github.com/dm0-/window_merge";
     description = "Pidgin plugin that merges the Buddy List window with a conversation window";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/pidgin/default.nix b/pkgs/applications/networking/instant-messengers/pidgin/default.nix
index 71168e1a692c2..369ae0693246e 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin/default.nix
@@ -67,7 +67,7 @@ let unwrapped = stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Multi-protocol instant messaging client";
-    homepage = http://pidgin.im;
+    homepage = "http://pidgin.im";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.vcunat ];
diff --git a/pkgs/applications/networking/instant-messengers/poezio/default.nix b/pkgs/applications/networking/instant-messengers/poezio/default.nix
index 31c9fb4e7c3fb..f7238419b5394 100644
--- a/pkgs/applications/networking/instant-messengers/poezio/default.nix
+++ b/pkgs/applications/networking/instant-messengers/poezio/default.nix
@@ -23,7 +23,7 @@ buildPythonApplication rec {
 
     meta = with lib; {
       description = "Free console XMPP client";
-      homepage = https://poez.io;
+      homepage = "https://poez.io";
       license = licenses.mit;
       maintainers = [ maintainers.lsix ];
     };
diff --git a/pkgs/applications/networking/instant-messengers/profanity/default.nix b/pkgs/applications/networking/instant-messengers/profanity/default.nix
index f6c1aa14e0ff0..86e760d497ce5 100644
--- a/pkgs/applications/networking/instant-messengers/profanity/default.nix
+++ b/pkgs/applications/networking/instant-messengers/profanity/default.nix
@@ -71,7 +71,7 @@ stdenv.mkDerivation rec {
       Profanity is a console based XMPP client written in C using ncurses and
       libstrophe, inspired by Irssi.
     '';
-    homepage = http://www.profanity.im/;
+    homepage = "http://www.profanity.im/";
     license = licenses.gpl3Plus;
     platforms = platforms.unix;
     maintainers = [ maintainers.devhell ];
diff --git a/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix b/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
index 111f4e728e785..d76b8dd206e46 100644
--- a/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pybitmessage/default.nix
@@ -31,7 +31,7 @@ python2Packages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://bitmessage.org/;
+    homepage = "https://bitmessage.org/";
     description = "The official Bitmessage client";
     license = licenses.mit;
     maintainers = with maintainers; [ jgillich ];
diff --git a/pkgs/applications/networking/instant-messengers/qtox/default.nix b/pkgs/applications/networking/instant-messengers/qtox/default.nix
index a78e5d1c2d12e..e3fc384f0f087 100644
--- a/pkgs/applications/networking/instant-messengers/qtox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/qtox/default.nix
@@ -43,7 +43,7 @@ in mkDerivation {
 
   meta = with lib; {
     description = "Qt Tox client";
-    homepage    = https://tox.chat;
+    homepage    = "https://tox.chat";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ akaWolf peterhoeg ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/networking/instant-messengers/rambox/default.nix b/pkgs/applications/networking/instant-messengers/rambox/default.nix
index 71102e7ed7761..1237892ef64c9 100644
--- a/pkgs/applications/networking/instant-messengers/rambox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/rambox/default.nix
@@ -41,7 +41,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Free and Open Source messaging and emailing app that combines common web applications into one";
-    homepage = http://rambox.pro;
+    homepage = "http://rambox.pro";
     license = licenses.mit;
     maintainers = with maintainers; [ gnidorah ma27 ];
     platforms = ["i686-linux" "x86_64-linux"];
diff --git a/pkgs/applications/networking/instant-messengers/ratox/default.nix b/pkgs/applications/networking/instant-messengers/ratox/default.nix
index 3768ecd137fb5..212ba3a31a4b9 100644
--- a/pkgs/applications/networking/instant-messengers/ratox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ratox/default.nix
@@ -28,7 +28,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "FIFO based tox client";
-    homepage = http://ratox.2f30.org/;
+    homepage = "http://ratox.2f30.org/";
     license = licenses.isc;
     maintainers = with maintainers; [ ehmry ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/ricochet/default.nix b/pkgs/applications/networking/instant-messengers/ricochet/default.nix
index 96ce9c32a7d67..01295697ad3af 100644
--- a/pkgs/applications/networking/instant-messengers/ricochet/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ricochet/default.nix
@@ -51,7 +51,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Anonymous peer-to-peer instant messaging";
-    homepage = https://ricochet.im;
+    homepage = "https://ricochet.im";
     license = licenses.bsd3;
     maintainers = [ maintainers.codsl maintainers.jgillich maintainers.np ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix b/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix
index 97c00924d6cff..55624643a018e 100644
--- a/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix
@@ -44,7 +44,7 @@ let
   ]);
 
   src = fetchgit {
-    url = https://gitlab.savoirfairelinux.com/ring/ring-daemon.git;
+    url = "https://gitlab.savoirfairelinux.com/ring/ring-daemon.git";
     rev = "006b8dc7be08fe9beb68709af71004e7bc1ceb5c";
     sha256 = "0ih9g0rismrhx6nqcy3jqfbcs166grg0shnfmrnmykl9h0xy8z47";
   };
@@ -140,7 +140,7 @@ stdenv.mkDerivation {
       graphical user interfaces and even scripts to control the daemon from the
       shell.
     '';
-    homepage = https://ring.cx;
+    homepage = "https://ring.cx";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ taeer olynch ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/ring-daemon/restbed.nix b/pkgs/applications/networking/instant-messengers/ring-daemon/restbed.nix
index d4298a3d32f3e..775b9015eb0e1 100644
--- a/pkgs/applications/networking/instant-messengers/ring-daemon/restbed.nix
+++ b/pkgs/applications/networking/instant-messengers/ring-daemon/restbed.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation {
       business processes. Targeting mobile, tablet, desktop, and embedded
       production environments.
     '';
-    homepage = https://corvusoft.co.uk/;
+    homepage = "https://corvusoft.co.uk/";
     license = licenses.agpl3;
     maintainers = with maintainers; [ taeer ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix b/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix
index 37fcafd961ae0..70be3698a7896 100644
--- a/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix
+++ b/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix
@@ -89,7 +89,7 @@ in mkYarnPackage rec {
 
   meta = with stdenv.lib; {
     description = "A feature-rich client for Matrix.org";
-    homepage = https://about.riot.im/;
+    homepage = "https://about.riot.im/";
     license = licenses.asl20;
     maintainers = with maintainers; [ pacien worldofpeace ];
     inherit (electron.meta) platforms;
diff --git a/pkgs/applications/networking/instant-messengers/riot/riot-web.nix b/pkgs/applications/networking/instant-messengers/riot/riot-web.nix
index 69699505bb625..78fc4b45f6b1a 100644
--- a/pkgs/applications/networking/instant-messengers/riot/riot-web.nix
+++ b/pkgs/applications/networking/instant-messengers/riot/riot-web.nix
@@ -31,7 +31,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "A glossy Matrix collaboration client for the web";
-    homepage = http://riot.im/;
+    homepage = "http://riot.im/";
     maintainers = with stdenv.lib.maintainers; [ bachp pacien ma27 ];
     license = stdenv.lib.licenses.asl20;
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/networking/instant-messengers/salut-a-toi/default.nix b/pkgs/applications/networking/instant-messengers/salut-a-toi/default.nix
index 13c7281aea7c9..6b9593a24b7f1 100644
--- a/pkgs/applications/networking/instant-messengers/salut-a-toi/default.nix
+++ b/pkgs/applications/networking/instant-messengers/salut-a-toi/default.nix
@@ -51,7 +51,7 @@ in
     '';
 
     meta = with stdenv.lib; {
-      homepage = http://sat.goffi.org/;
+      homepage = "http://sat.goffi.org/";
       description = "A multi-frontend XMPP client";
       platforms = platforms.linux;
       maintainers = [ maintainers.raskin ];
diff --git a/pkgs/applications/networking/instant-messengers/scudcloud/default.nix b/pkgs/applications/networking/instant-messengers/scudcloud/default.nix
index 54959383f08e2..b16659ba44cd9 100644
--- a/pkgs/applications/networking/instant-messengers/scudcloud/default.nix
+++ b/pkgs/applications/networking/instant-messengers/scudcloud/default.nix
@@ -13,7 +13,7 @@ in python3Packages.buildPythonPackage {
 
   meta = with stdenv.lib; {
     description = "Non-official desktop client for Slack";
-    homepage = https://github.com/raelgc/scudcloud;
+    homepage = "https://github.com/raelgc/scudcloud";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ volhovm ];
diff --git a/pkgs/applications/networking/instant-messengers/silc-client/default.nix b/pkgs/applications/networking/instant-messengers/silc-client/default.nix
index 1219440bf8335..0c84e1c5c80a5 100644
--- a/pkgs/applications/networking/instant-messengers/silc-client/default.nix
+++ b/pkgs/applications/networking/instant-messengers/silc-client/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   buildInputs = [ perl glib ncurses ];
 
   meta = {
-    homepage = http://silcnet.org/;
+    homepage = "http://silcnet.org/";
     description = "Secure Internet Live Conferencing server";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/networking/instant-messengers/sky/default.nix b/pkgs/applications/networking/instant-messengers/sky/default.nix
index cdc176be65b04..fe8b251c4048d 100644
--- a/pkgs/applications/networking/instant-messengers/sky/default.nix
+++ b/pkgs/applications/networking/instant-messengers/sky/default.nix
@@ -10,7 +10,7 @@
    # Sky is linked to the libjpeg 8 version and checks for the version number in the code.
    libjpeg_original_fix = libjpeg_original.overrideAttrs (oldAttrs: {
     src = fetchurl{
-      url = https://www.ijg.org/files/jpegsrc.v8d.tar.gz;
+      url = "https://www.ijg.org/files/jpegsrc.v8d.tar.gz";
       sha256 = "1cz0dy05mgxqdgjf52p54yxpyy95rgl30cnazdrfmw7hfca9n0h0";
     };
   });
@@ -77,7 +77,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       Lync & Skype for business on linux
     '';
-    homepage = https://tel.red/;
+    homepage = "https://tel.red/";
     license = licenses.unfree;
     maintainers = [ maintainers.Scriptkiddi ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix b/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix
index 8093f91feb3e4..57d1ffece71a2 100644
--- a/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix
+++ b/pkgs/applications/networking/instant-messengers/skype-call-recorder/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   NIX_LDFLAGS = "-lvorbis";
 
   meta = {
-    homepage = http://atdot.ch/scr/;
+    homepage = "http://atdot.ch/scr/";
     description = "Open source tool to record your Skype calls on Linux";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix b/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix
index 3aaaa7eb8ba04..5eda7971748f1 100644
--- a/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix
+++ b/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix
@@ -111,7 +111,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Linux client for skype";
-    homepage = https://www.skype.com;
+    homepage = "https://www.skype.com";
     license = licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ panaeon jraygauthier ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/instant-messengers/slack-term/default.nix b/pkgs/applications/networking/instant-messengers/slack-term/default.nix
index d1f3e98c4ec27..c862c253c00a6 100644
--- a/pkgs/applications/networking/instant-messengers/slack-term/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack-term/default.nix
@@ -16,7 +16,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Slack client for your terminal";
-    homepage = https://github.com/erroneousboat/slack-term;
+    homepage = "https://github.com/erroneousboat/slack-term";
     license = licenses.mit;
     maintainers = with maintainers; [ dtzWill ];
   };
diff --git a/pkgs/applications/networking/instant-messengers/slack/default.nix b/pkgs/applications/networking/instant-messengers/slack/default.nix
index 712d45e2b199b..e9a795b59cdc7 100644
--- a/pkgs/applications/networking/instant-messengers/slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack/default.nix
@@ -46,7 +46,7 @@ let
 
   meta = with stdenv.lib; {
     description = "Desktop client for Slack";
-    homepage = https://slack.com;
+    homepage = "https://slack.com";
     license = licenses.unfree;
     maintainers = with maintainers; [ mmahut ];
     platforms = [ "x86_64-darwin" "x86_64-linux" ];
diff --git a/pkgs/applications/networking/instant-messengers/stride/default.nix b/pkgs/applications/networking/instant-messengers/stride/default.nix
index 7a9ab4d127c4d..895ad30360e97 100644
--- a/pkgs/applications/networking/instant-messengers/stride/default.nix
+++ b/pkgs/applications/networking/instant-messengers/stride/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Desktop client for Atlassian Stride";
-    homepage = https://www.stride.com/;
+    homepage = "https://www.stride.com/";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ puffnfresh ];
diff --git a/pkgs/applications/networking/instant-messengers/swift-im/default.nix b/pkgs/applications/networking/instant-messengers/swift-im/default.nix
index 0f1a7478a1872..ce59d5746190e 100644
--- a/pkgs/applications/networking/instant-messengers/swift-im/default.nix
+++ b/pkgs/applications/networking/instant-messengers/swift-im/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "SWIFT_INSTALLDIR=${placeholder "out"}" ];
 
   meta = with stdenv.lib; {
-    homepage = https://swift.im/;
+    homepage = "https://swift.im/";
     description = "Qt XMPP client";
     license = licenses.gpl3;
     maintainers = with maintainers; [ orivej ];
diff --git a/pkgs/applications/networking/instant-messengers/teamspeak/client.nix b/pkgs/applications/networking/instant-messengers/teamspeak/client.nix
index c2a9f4be90a2e..b9835f45d27e2 100644
--- a/pkgs/applications/networking/instant-messengers/teamspeak/client.nix
+++ b/pkgs/applications/networking/instant-messengers/teamspeak/client.nix
@@ -101,10 +101,10 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The TeamSpeak voice communication tool";
-    homepage = https://teamspeak.com/;
+    homepage = "https://teamspeak.com/";
     license = {
       fullName = "Teamspeak client license";
-      url = http://sales.teamspeakusa.com/licensing.php;
+      url = "http://sales.teamspeakusa.com/licensing.php";
       free = false;
     };
     maintainers = [ stdenv.lib.maintainers.lhvwb ];
diff --git a/pkgs/applications/networking/instant-messengers/teamspeak/server.nix b/pkgs/applications/networking/instant-messengers/teamspeak/server.nix
index 1cc3cf9cdd59a..8af582c3f37f9 100644
--- a/pkgs/applications/networking/instant-messengers/teamspeak/server.nix
+++ b/pkgs/applications/networking/instant-messengers/teamspeak/server.nix
@@ -30,7 +30,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "TeamSpeak voice communication server";
-    homepage = https://teamspeak.com/;
+    homepage = "https://teamspeak.com/";
     license = licenses.unfreeRedistributable;
     platforms = platforms.linux;
     maintainers = with maintainers; [ arobyn gerschtli ];
diff --git a/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix b/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix
index 862659fde8d9b..976eac59040e2 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix
@@ -48,7 +48,7 @@ mkDerivation rec {
     '';
     license = licenses.gpl3;
     platforms = platforms.linux;
-    homepage = https://kotatogram.github.io;
+    homepage = "https://kotatogram.github.io";
     maintainers = with maintainers; [ ilya-fedin ];
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/telepathy/gabble/default.nix b/pkgs/applications/networking/instant-messengers/telepathy/gabble/default.nix
index a0cc73da46d86..d81af8388aac9 100644
--- a/pkgs/applications/networking/instant-messengers/telepathy/gabble/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telepathy/gabble/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = https://telepathy.freedesktop.org/components/telepathy-gabble/;
+    homepage = "https://telepathy.freedesktop.org/components/telepathy-gabble/";
     description = "Jabber/XMPP connection manager for the Telepathy framework";
     license = licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.gnu ++ stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/instant-messengers/telepathy/haze/default.nix b/pkgs/applications/networking/instant-messengers/telepathy/haze/default.nix
index 769e639314e06..6d4ff62f22a8b 100644
--- a/pkgs/applications/networking/instant-messengers/telepathy/haze/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telepathy/haze/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
     # Patch from Gentoo that helps telepathy-haze build with more
     # recent versions of pidgin.
     (fetchpatch {
-      url = https://raw.githubusercontent.com/gentoo/gentoo/master/net-voip/telepathy-haze/files/telepathy-haze-0.8.0-pidgin-2.10.12-compat.patch;
+      url = "https://raw.githubusercontent.com/gentoo/gentoo/master/net-voip/telepathy-haze/files/telepathy-haze-0.8.0-pidgin-2.10.12-compat.patch";
       sha256 = "0fa1p4n1559qd096w7ya4kvfnc1c98ykarkxzlpkwvzbczwzng3c";
     })
   ];
diff --git a/pkgs/applications/networking/instant-messengers/telepathy/logger/default.nix b/pkgs/applications/networking/instant-messengers/telepathy/logger/default.nix
index af0ca1589e5aa..f8e1f1f2c665d 100644
--- a/pkgs/applications/networking/instant-messengers/telepathy/logger/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telepathy/logger/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Logger service for Telepathy framework";
-    homepage = https://telepathy.freedesktop.org/components/telepathy-logger/;
+    homepage = "https://telepathy.freedesktop.org/components/telepathy-logger/";
     license = licenses.lgpl21;
     maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.gnu ++ platforms.linux; # Arbitrary choice
diff --git a/pkgs/applications/networking/instant-messengers/telepathy/mission-control/default.nix b/pkgs/applications/networking/instant-messengers/telepathy/mission-control/default.nix
index d91cc5f8c84f2..c590b6a0896d3 100644
--- a/pkgs/applications/networking/instant-messengers/telepathy/mission-control/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telepathy/mission-control/default.nix
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An account manager and channel dispatcher for the Telepathy framework";
-    homepage = https://telepathy.freedesktop.org/components/telepathy-mission-control/;
+    homepage = "https://telepathy.freedesktop.org/components/telepathy-mission-control/";
     license = licenses.lgpl21;
     maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/instant-messengers/tensor/default.nix b/pkgs/applications/networking/instant-messengers/tensor/default.nix
index 11845ecfb26cb..dcb2c720bc626 100644
--- a/pkgs/applications/networking/instant-messengers/tensor/default.nix
+++ b/pkgs/applications/networking/instant-messengers/tensor/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://matrix.org/docs/projects/client/tensor.html;
+    homepage = "https://matrix.org/docs/projects/client/tensor.html";
     description = "Cross-platform Qt5/QML-based Matrix client";
     license = licenses.gpl3;
     maintainers = with maintainers; [ peterhoeg ];
diff --git a/pkgs/applications/networking/instant-messengers/torchat/default.nix b/pkgs/applications/networking/instant-messengers/torchat/default.nix
index edfec97edf8ae..8231f481ee0d9 100644
--- a/pkgs/applications/networking/instant-messengers/torchat/default.nix
+++ b/pkgs/applications/networking/instant-messengers/torchat/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/prof7bit/TorChat;
+    homepage = "https://github.com/prof7bit/TorChat";
     description = "Instant messaging application on top of the Tor network and it's location hidden services";
     license = licenses.gpl3;
     maintainers = [ maintainers.phreedom ];
diff --git a/pkgs/applications/networking/instant-messengers/turses/default.nix b/pkgs/applications/networking/instant-messengers/turses/default.nix
index 27977dae15f89..b6017277b0a50 100644
--- a/pkgs/applications/networking/instant-messengers/turses/default.nix
+++ b/pkgs/applications/networking/instant-messengers/turses/default.nix
@@ -45,7 +45,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/louipc/turses;
+    homepage = "https://github.com/louipc/turses";
     description = "A Twitter client for the console";
     license = licenses.gpl3;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/networking/instant-messengers/utox/default.nix b/pkgs/applications/networking/instant-messengers/utox/default.nix
index 5ef0d9162429a..b360793e484b7 100644
--- a/pkgs/applications/networking/instant-messengers/utox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/utox/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Lightweight Tox client";
-    homepage = https://github.com/uTox/uTox;
+    homepage = "https://github.com/uTox/uTox";
     license = licenses.gpl3;
     maintainers = with maintainers; [ domenkozar ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/instant-messengers/vacuum/default.nix b/pkgs/applications/networking/instant-messengers/vacuum/default.nix
index 923ce3737532b..cbd32347c4e2c 100644
--- a/pkgs/applications/networking/instant-messengers/vacuum/default.nix
+++ b/pkgs/applications/networking/instant-messengers/vacuum/default.nix
@@ -36,6 +36,6 @@ stdenv.mkDerivation {
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
     license = licenses.gpl3;
-    homepage = http://www.vacuum-im.org;
+    homepage = "http://www.vacuum-im.org";
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/viber/default.nix b/pkgs/applications/networking/instant-messengers/viber/default.nix
index acdec1dc99c9a..e53b8c7391e8f 100644
--- a/pkgs/applications/networking/instant-messengers/viber/default.nix
+++ b/pkgs/applications/networking/instant-messengers/viber/default.nix
@@ -94,7 +94,7 @@ stdenv.mkDerivation {
   dontPatchELF = true;
 
   meta = {
-    homepage = http://www.viber.com;
+    homepage = "http://www.viber.com";
     description = "An instant messaging and Voice over IP (VoIP) app";
     license = stdenv.lib.licenses.unfree;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/instant-messengers/vk-messenger/default.nix b/pkgs/applications/networking/instant-messengers/vk-messenger/default.nix
index 7f2ce9553e9b1..bece4e467a357 100644
--- a/pkgs/applications/networking/instant-messengers/vk-messenger/default.nix
+++ b/pkgs/applications/networking/instant-messengers/vk-messenger/default.nix
@@ -46,7 +46,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Simple and Convenient Messaging App for VK";
-    homepage = https://vk.com/messenger;
+    homepage = "https://vk.com/messenger";
     license = licenses.unfree;
     maintainers = [ maintainers.gnidorah ];
     platforms = ["i686-linux" "x86_64-linux"];
diff --git a/pkgs/applications/networking/instant-messengers/wavebox/default.nix b/pkgs/applications/networking/instant-messengers/wavebox/default.nix
index ceb9b4a114031..1cd2df4c7ac11 100644
--- a/pkgs/applications/networking/instant-messengers/wavebox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/wavebox/default.nix
@@ -59,7 +59,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Wavebox messaging application";
-    homepage = https://wavebox.io;
+    homepage = "https://wavebox.io";
     license = licenses.mpl20;
     maintainers = with maintainers; [ rawkode ];
     platforms = ["x86_64-linux"];
diff --git a/pkgs/applications/networking/instant-messengers/xmpp-client/default.nix b/pkgs/applications/networking/instant-messengers/xmpp-client/default.nix
index 4047eba1fbb52..52cf8e3279a03 100644
--- a/pkgs/applications/networking/instant-messengers/xmpp-client/default.nix
+++ b/pkgs/applications/networking/instant-messengers/xmpp-client/default.nix
@@ -18,7 +18,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "An XMPP client with OTR support";
-    homepage = https://github.com/agl/xmpp-client;
+    homepage = "https://github.com/agl/xmpp-client";
     license = licenses.bsd3;
     maintainers = with maintainers; [ codsl ];
   };
diff --git a/pkgs/applications/networking/instant-messengers/zulip/default.nix b/pkgs/applications/networking/instant-messengers/zulip/default.nix
index 0c0c6debd79ac..8245f5febc4c9 100644
--- a/pkgs/applications/networking/instant-messengers/zulip/default.nix
+++ b/pkgs/applications/networking/instant-messengers/zulip/default.nix
@@ -32,7 +32,7 @@ in appimageTools.wrapType2 {
 
   meta = with lib; {
     description = "Desktop client for Zulip Chat";
-    homepage = https://zulipchat.com;
+    homepage = "https://zulipchat.com";
     license = licenses.asl20;
     maintainers = with maintainers; [ jonafato ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/insync/default.nix b/pkgs/applications/networking/insync/default.nix
index 3a2b32f01175e..773a07dd6c242 100644
--- a/pkgs/applications/networking/insync/default.nix
+++ b/pkgs/applications/networking/insync/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
     platforms = ["x86_64-linux"];
     license = stdenv.lib.licenses.unfree;
     maintainers = [ stdenv.lib.maintainers.benley ];
-    homepage = https://www.insynchq.com;
+    homepage = "https://www.insynchq.com";
     description = "Google Drive sync and backup with multiple account support";
     longDescription = ''
      Insync is a commercial application that syncs your Drive files to your
diff --git a/pkgs/applications/networking/ipfs-cluster/default.nix b/pkgs/applications/networking/ipfs-cluster/default.nix
index a214f222d566a..f921970175a2a 100644
--- a/pkgs/applications/networking/ipfs-cluster/default.nix
+++ b/pkgs/applications/networking/ipfs-cluster/default.nix
@@ -16,7 +16,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "Allocate, replicate, and track Pins across a cluster of IPFS daemons";
-    homepage = https://cluster.ipfs.io/;
+    homepage = "https://cluster.ipfs.io/";
     license = licenses.mit;
     platforms = platforms.unix;
     maintainers = with maintainers; [ jglukasik ];
diff --git a/pkgs/applications/networking/ipfs/default.nix b/pkgs/applications/networking/ipfs/default.nix
index 4f71fcf3b7454..b94fc1addb0b0 100644
--- a/pkgs/applications/networking/ipfs/default.nix
+++ b/pkgs/applications/networking/ipfs/default.nix
@@ -20,7 +20,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "A global, versioned, peer-to-peer filesystem";
-    homepage = https://ipfs.io/;
+    homepage = "https://ipfs.io/";
     license = licenses.mit;
     platforms = platforms.unix;
     maintainers = with maintainers; [ fpletz ];
diff --git a/pkgs/applications/networking/ipget/default.nix b/pkgs/applications/networking/ipget/default.nix
index 9f206a8f48f3f..6a9bcaf32d22b 100644
--- a/pkgs/applications/networking/ipget/default.nix
+++ b/pkgs/applications/networking/ipget/default.nix
@@ -25,7 +25,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Retrieve files over IPFS and save them locally";
-    homepage = https://ipfs.io/;
+    homepage = "https://ipfs.io/";
     license = licenses.mit;
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/networking/iptraf-ng/default.nix b/pkgs/applications/networking/iptraf-ng/default.nix
index cdece4eb644f0..1fc81be240bf2 100644
--- a/pkgs/applications/networking/iptraf-ng/default.nix
+++ b/pkgs/applications/networking/iptraf-ng/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
       of the Linux kernel, so it can be used on a wide variety of supported
       network cards.
     '';
-    homepage = https://fedorahosted.org/iptraf-ng/;
+    homepage = "https://fedorahosted.org/iptraf-ng/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/networking/iptraf/default.nix b/pkgs/applications/networking/iptraf/default.nix
index d2d9a67fb4d99..83d9a019e48bb 100644
--- a/pkgs/applications/networking/iptraf/default.nix
+++ b/pkgs/applications/networking/iptraf/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "iptraf-3.0.1";
 
   src = fetchurl {
-    url = ftp://iptraf.seul.org/pub/iptraf/iptraf-3.0.1.tar.gz;
+    url = "ftp://iptraf.seul.org/pub/iptraf/iptraf-3.0.1.tar.gz";
     sha256 = "12n059j9iihhpf6spmlaspqzxz3wqan6kkpnhmlj08jdijpnk84m";
   };
 
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   buildInputs = [ncurses];
 
   meta = {
-    homepage = http://iptraf.seul.org/;
+    homepage = "http://iptraf.seul.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     description = "Console-based network statistics utility for Linux";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/irc/bip/default.nix b/pkgs/applications/networking/irc/bip/default.nix
index 43ec0910cc2b8..af67c224e7d7d 100644
--- a/pkgs/applications/networking/irc/bip/default.nix
+++ b/pkgs/applications/networking/irc/bip/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An IRC proxy (bouncer)";
-    homepage = http://bip.milkypond.org/;
+    homepage = "http://bip.milkypond.org/";
     license = stdenv.lib.licenses.gpl2;
     downloadPage = "https://projects.duckcorp.org/projects/bip/files";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/irc/communi/default.nix b/pkgs/applications/networking/irc/communi/default.nix
index 8278f90d321c9..6cb6f2c2ef679 100644
--- a/pkgs/applications/networking/irc/communi/default.nix
+++ b/pkgs/applications/networking/irc/communi/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A simple and elegant cross-platform IRC client";
-    homepage = https://github.com/communi/communi-desktop;
+    homepage = "https://github.com/communi/communi-desktop";
     license = licenses.bsd3;
     maintainers = with maintainers; [ hrdinka ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/irc/epic5/default.nix b/pkgs/applications/networking/irc/epic5/default.nix
index 0cf06a1f45229..cb2fa4ae6823e 100644
--- a/pkgs/applications/networking/irc/epic5/default.nix
+++ b/pkgs/applications/networking/irc/epic5/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://epicsol.org;
+    homepage = "http://epicsol.org";
     description = "A IRC client that offers a great ircII interface";
     license = licenses.bsd3;
     maintainers = [];
diff --git a/pkgs/applications/networking/irc/glowing-bear/default.nix b/pkgs/applications/networking/irc/glowing-bear/default.nix
index 2d12386bafac0..59278dddad1aa 100644
--- a/pkgs/applications/networking/irc/glowing-bear/default.nix
+++ b/pkgs/applications/networking/irc/glowing-bear/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A web client for Weechat";
-    homepage = https://github.com/glowing-bear/glowing-bear;
+    homepage = "https://github.com/glowing-bear/glowing-bear";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ delroth ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/irc/hexchat/default.nix b/pkgs/applications/networking/irc/hexchat/default.nix
index 263cf23c17ff3..c5b2a9f1b28e7 100644
--- a/pkgs/applications/networking/irc/hexchat/default.nix
+++ b/pkgs/applications/networking/irc/hexchat/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A popular and easy to use graphical IRC (chat) client";
-    homepage = https://hexchat.github.io/;
+    homepage = "https://hexchat.github.io/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ romildo ];
diff --git a/pkgs/applications/networking/irc/ii/default.nix b/pkgs/applications/networking/irc/ii/default.nix
index 4807f3419d15a..163dec194b15e 100644
--- a/pkgs/applications/networking/irc/ii/default.nix
+++ b/pkgs/applications/networking/irc/ii/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://tools.suckless.org/ii/;
+    homepage = "https://tools.suckless.org/ii/";
     license = stdenv.lib.licenses.mit;
     description = "Irc it, simple FIFO based irc client";
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/networking/irc/irssi/default.nix b/pkgs/applications/networking/irc/irssi/default.nix
index 1751812d67e88..27b37e78a1a40 100644
--- a/pkgs/applications/networking/irc/irssi/default.nix
+++ b/pkgs/applications/networking/irc/irssi/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = {
-    homepage    = https://irssi.org;
+    homepage    = "https://irssi.org";
     description = "A terminal based IRC client";
     platforms   = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ lovek323 ];
diff --git a/pkgs/applications/networking/irc/irssi/fish/default.nix b/pkgs/applications/networking/irc/irssi/fish/default.nix
index aefc48d4a3ee9..f1e0e9158ca65 100644
--- a/pkgs/applications/networking/irc/irssi/fish/default.nix
+++ b/pkgs/applications/networking/irc/irssi/fish/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "fish-irssi-20130413-e98156bebd";
   
   src = fetchurl {
-    url = https://github.com/falsovsky/FiSH-irssi/tarball/e98156bebd;
+    url = "https://github.com/falsovsky/FiSH-irssi/tarball/e98156bebd";
     name = "${name}.tar.gz";
     sha256 = "1ndr51qrg66h1mfzacwzl1vd6lj39pdc4p4z5iihrj4r2f6gk11a";
   };
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ gmp automake autoconf libtool openssl glib ];
   
   meta = {
-    homepage = https://github.com/falsovsky/FiSH-irssi;
+    homepage = "https://github.com/falsovsky/FiSH-irssi";
     license = stdenv.lib.licenses.unfree; # I can't find any mention of license
     maintainers = with stdenv.lib.maintainers; [viric];
   };
diff --git a/pkgs/applications/networking/irc/konversation/default.nix b/pkgs/applications/networking/irc/konversation/default.nix
index 6a58241b89aa9..2890deccb800f 100644
--- a/pkgs/applications/networking/irc/konversation/default.nix
+++ b/pkgs/applications/networking/irc/konversation/default.nix
@@ -82,6 +82,6 @@ in mkDerivation rec {
     description = "Integrated IRC client for KDE";
     license = with lib.licenses; [ gpl2 ];
     maintainers = with lib.maintainers; [ fridh ];
-    homepage = https://konversation.kde.org;
+    homepage = "https://konversation.kde.org";
   };
 }
diff --git a/pkgs/applications/networking/irc/quassel/default.nix b/pkgs/applications/networking/irc/quassel/default.nix
index f78053bdc37b3..86f7793819b0a 100644
--- a/pkgs/applications/networking/irc/quassel/default.nix
+++ b/pkgs/applications/networking/irc/quassel/default.nix
@@ -80,7 +80,7 @@ in (if !buildClient then stdenv.mkDerivation else mkDerivation) rec {
     '';
 
   meta = with stdenv.lib; {
-    homepage = https://quassel-irc.org/;
+    homepage = "https://quassel-irc.org/";
     description = "Qt/KDE distributed IRC client suppporting a remote daemon";
     longDescription = ''
       Quassel IRC is a cross-platform, distributed IRC client,
@@ -91,7 +91,7 @@ in (if !buildClient then stdenv.mkDerivation else mkDerivation) rec {
     '';
     license = licenses.gpl3;
     maintainers = with maintainers; [ phreedom ttuegel ];
-    repositories.git = https://github.com/quassel/quassel.git;
+    repositories.git = "https://github.com/quassel/quassel.git";
     inherit (qtbase.meta) platforms;
   };
 }
diff --git a/pkgs/applications/networking/irc/qweechat/default.nix b/pkgs/applications/networking/irc/qweechat/default.nix
index aedd4bdf0dd80..27adb2cefc5fc 100644
--- a/pkgs/applications/networking/irc/qweechat/default.nix
+++ b/pkgs/applications/networking/irc/qweechat/default.nix
@@ -22,7 +22,7 @@ python27Packages.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/weechat/qweechat;
+    homepage = "https://github.com/weechat/qweechat";
     description = "Qt remote GUI for WeeChat";
     license = licenses.gpl3;
     maintainers = with maintainers; [ ramkromberg ];
diff --git a/pkgs/applications/networking/irc/sic/default.nix b/pkgs/applications/networking/irc/sic/default.nix
index 4091429559705..69605af2f6603 100644
--- a/pkgs/applications/networking/irc/sic/default.nix
+++ b/pkgs/applications/networking/irc/sic/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Simple IRC client";
-    homepage = https://tools.suckless.org/sic/;
+    homepage = "https://tools.suckless.org/sic/";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/networking/irc/weechat/default.nix b/pkgs/applications/networking/irc/weechat/default.nix
index ee850ea0eba75..4538edd2e7604 100644
--- a/pkgs/applications/networking/irc/weechat/default.nix
+++ b/pkgs/applications/networking/irc/weechat/default.nix
@@ -70,7 +70,7 @@ let
       '';
 
       meta = {
-        homepage = http://www.weechat.org/;
+        homepage = "http://www.weechat.org/";
         description = "A fast, light and extensible chat client";
         longDescription = ''
           You can find more documentation as to how to customize this package
diff --git a/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix b/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix
index 7b98630e85ee1..8df6c8d6124e9 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/wee-slack/wee-slack;
+    homepage = "https://github.com/wee-slack/wee-slack";
     license = licenses.mit;
     maintainers = with maintainers; [ willibutz ];
     description = ''
diff --git a/pkgs/applications/networking/irc/weechat/scripts/weechat-autosort/default.nix b/pkgs/applications/networking/irc/weechat/scripts/weechat-autosort/default.nix
index 23a6996bcdd25..883ed793ced60 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/weechat-autosort/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/weechat-autosort/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Autosort is a weechat script to automatically or manually keep your buffers sorted";
-    homepage = https://github.com/de-vri-es/weechat-autosort;
+    homepage = "https://github.com/de-vri-es/weechat-autosort";
     license = licenses.gpl3;
     maintainers = with maintainers; [ emily ];
   };
diff --git a/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix b/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix
index ea5052f37a3f0..f1b075e6d082a 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A WeeChat script in Lua that implements the matrix.org chat protocol";
-    homepage = https://github.com/torhve/weechat-matrix-protocol-script;
+    homepage = "https://github.com/torhve/weechat-matrix-protocol-script";
     maintainers = with maintainers; [ ma27 ];
     license = licenses.mit; # see https://github.com/torhve/weechat-matrix-protocol-script/blob/0052e7275ae149dc5241226391c9b1889ecc3c6b/matrix.lua#L53
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/irc/wraith/default.nix b/pkgs/applications/networking/irc/wraith/default.nix
index 996ab72d6f5de..02bccb67bfe1f 100644
--- a/pkgs/applications/networking/irc/wraith/default.nix
+++ b/pkgs/applications/networking/irc/wraith/default.nix
@@ -40,7 +40,7 @@ mkDerivation rec {
       The binary will not run when moved onto non-NixOS systems; use patchelf
       to fix its runtime dependenices.
     '';
-    homepage = https://wraith.botpack.net/;
+    homepage = "https://wraith.botpack.net/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ elitak ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/linssid/default.nix b/pkgs/applications/networking/linssid/default.nix
index daddf6adf7e48..f458e03913ba3 100644
--- a/pkgs/applications/networking/linssid/default.nix
+++ b/pkgs/applications/networking/linssid/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Graphical wireless scanning for Linux";
-    homepage = https://sourceforge.net/projects/linssid/;
+    homepage = "https://sourceforge.net/projects/linssid/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/networking/mailreaders/aerc/default.nix b/pkgs/applications/networking/mailreaders/aerc/default.nix
index 7b24ed93406e3..f53f2244e9f14 100644
--- a/pkgs/applications/networking/mailreaders/aerc/default.nix
+++ b/pkgs/applications/networking/mailreaders/aerc/default.nix
@@ -55,7 +55,7 @@ in buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "aerc is an email client for your terminal";
-    homepage = https://aerc-mail.org/;
+    homepage = "https://aerc-mail.org/";
     maintainers = with maintainers; [ tadeokondrak ];
     license = licenses.mit;
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/mailreaders/afew/default.nix b/pkgs/applications/networking/mailreaders/afew/default.nix
index 54b3e10b5e297..7d7f660df7c72 100644
--- a/pkgs/applications/networking/mailreaders/afew/default.nix
+++ b/pkgs/applications/networking/mailreaders/afew/default.nix
@@ -33,7 +33,7 @@ python3Packages.buildPythonApplication rec {
 
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/afewmail/afew;
+    homepage = "https://github.com/afewmail/afew";
     description = "An initial tagging script for notmuch mail";
     license = licenses.isc;
     maintainers = with maintainers; [ andir flokli ];
diff --git a/pkgs/applications/networking/mailreaders/astroid/default.nix b/pkgs/applications/networking/mailreaders/astroid/default.nix
index 7d62aa43888e3..171136ce22cad 100644
--- a/pkgs/applications/networking/mailreaders/astroid/default.nix
+++ b/pkgs/applications/networking/mailreaders/astroid/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://astroidmail.github.io/;
+    homepage = "https://astroidmail.github.io/";
     description = "GTK frontend to the notmuch mail system";
     maintainers = with maintainers; [ bdimcheff SuprDewd ];
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/networking/mailreaders/balsa/default.nix b/pkgs/applications/networking/mailreaders/balsa/default.nix
index e7c9d50cb9be1..04d00a166aa85 100644
--- a/pkgs/applications/networking/mailreaders/balsa/default.nix
+++ b/pkgs/applications/networking/mailreaders/balsa/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://pawsa.fedorapeople.org/balsa/;
+    homepage = "http://pawsa.fedorapeople.org/balsa/";
     description = "An e-mail client for GNOME";
     license = licenses.gpl2Plus;
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/mailreaders/imapfilter.nix b/pkgs/applications/networking/mailreaders/imapfilter.nix
index 38e4bf5d71057..fad018011ba7b 100644
--- a/pkgs/applications/networking/mailreaders/imapfilter.nix
+++ b/pkgs/applications/networking/mailreaders/imapfilter.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   propagatedBuildInputs = [ openssl pcre lua ];
 
   meta = {
-    homepage = https://github.com/lefcha/imapfilter;
+    homepage = "https://github.com/lefcha/imapfilter";
     description = "Mail filtering utility";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/networking/mailreaders/lumail/default.nix b/pkgs/applications/networking/mailreaders/lumail/default.nix
index 44b97fb3793c9..3dd03c9712032 100644
--- a/pkgs/applications/networking/mailreaders/lumail/default.nix
+++ b/pkgs/applications/networking/mailreaders/lumail/default.nix
@@ -74,7 +74,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Console-based email client";
-    homepage = https://lumail.org/;
+    homepage = "https://lumail.org/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [orivej];
diff --git a/pkgs/applications/networking/mailreaders/mailcheck/default.nix b/pkgs/applications/networking/mailreaders/mailcheck/default.nix
index ffa3e92d390ce..96ce99580fcbc 100644
--- a/pkgs/applications/networking/mailreaders/mailcheck/default.nix
+++ b/pkgs/applications/networking/mailreaders/mailcheck/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Simple command line tool to check for new messages";
-    homepage    = http://mailcheck.sourceforge.net/;
+    homepage    = "http://mailcheck.sourceforge.net/";
     license     = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ kovirobi ];
     platforms   = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/mailreaders/mailnag/default.nix b/pkgs/applications/networking/mailreaders/mailnag/default.nix
index 4cbaee4488b15..8341cc63092cd 100644
--- a/pkgs/applications/networking/mailreaders/mailnag/default.nix
+++ b/pkgs/applications/networking/mailreaders/mailnag/default.nix
@@ -41,7 +41,7 @@ in pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "An extensible mail notification daemon";
-    homepage = https://github.com/pulb/mailnag;
+    homepage = "https://github.com/pulb/mailnag";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/networking/mailreaders/mailpile/default.nix b/pkgs/applications/networking/mailreaders/mailpile/default.nix
index 89231939bfbcf..6bd0995623db2 100644
--- a/pkgs/applications/networking/mailreaders/mailpile/default.nix
+++ b/pkgs/applications/networking/mailreaders/mailpile/default.nix
@@ -41,7 +41,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A modern, fast web-mail client with user-friendly encryption and privacy features";
-    homepage = https://www.mailpile.is/;
+    homepage = "https://www.mailpile.is/";
     license = [ licenses.asl20 licenses.agpl3 ];
     platforms = platforms.linux;
     maintainers = [ maintainers.domenkozar ];
diff --git a/pkgs/applications/networking/mailreaders/mblaze/default.nix b/pkgs/applications/networking/mailreaders/mblaze/default.nix
index ba8f272203bc3..82550cf43ccfa 100644
--- a/pkgs/applications/networking/mailreaders/mblaze/default.nix
+++ b/pkgs/applications/networking/mailreaders/mblaze/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/chneukirchen/mblaze;
+    homepage = "https://github.com/chneukirchen/mblaze";
     description = "Unix utilities to deal with Maildir";
     license = licenses.cc0;
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/mailreaders/mlarchive2maildir/default.nix b/pkgs/applications/networking/mailreaders/mlarchive2maildir/default.nix
index 2fb30e5ae6ada..c7554fc84b085 100644
--- a/pkgs/applications/networking/mailreaders/mlarchive2maildir/default.nix
+++ b/pkgs/applications/networking/mailreaders/mlarchive2maildir/default.nix
@@ -20,7 +20,7 @@ python3.pkgs.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/flokli/mlarchive2maildir;
+    homepage = "https://github.com/flokli/mlarchive2maildir";
     description = "Imports mail from (pipermail) archives into a maildir";
     license = licenses.mit;
     maintainers = with maintainers; [ andir flokli ];
diff --git a/pkgs/applications/networking/mailreaders/msgviewer/default.nix b/pkgs/applications/networking/mailreaders/msgviewer/default.nix
index fc8c167e98496..3461b3b560f95 100644
--- a/pkgs/applications/networking/mailreaders/msgviewer/default.nix
+++ b/pkgs/applications/networking/mailreaders/msgviewer/default.nix
@@ -30,7 +30,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Viewer for .msg files (MS Outlook)";
-    homepage    = https://www.washington.edu/alpine/;
+    homepage    = "https://www.washington.edu/alpine/";
     license     = licenses.asl20;
     maintainers = with maintainers; [ peterhoeg ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/networking/mailreaders/mutt/default.nix b/pkgs/applications/networking/mailreaders/mutt/default.nix
index a53e1abc1861f..81b2fcf62bc3d 100644
--- a/pkgs/applications/networking/mailreaders/mutt/default.nix
+++ b/pkgs/applications/networking/mailreaders/mutt/default.nix
@@ -88,7 +88,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A small but very powerful text-based mail client";
-    homepage = http://www.mutt.org;
+    homepage = "http://www.mutt.org";
     license = licenses.gpl2Plus;
     platforms = platforms.unix;
     maintainers = with maintainers; [ the-kenny rnhmjoj ];
diff --git a/pkgs/applications/networking/mailreaders/neomutt/default.nix b/pkgs/applications/networking/mailreaders/neomutt/default.nix
index bcd35510dce37..e554e91a39bdb 100644
--- a/pkgs/applications/networking/mailreaders/neomutt/default.nix
+++ b/pkgs/applications/networking/mailreaders/neomutt/default.nix
@@ -79,7 +79,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A small but very powerful text-based mail client";
-    homepage    = http://www.neomutt.org;
+    homepage    = "http://www.neomutt.org";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ cstrahan erikryb jfrankenau vrthra ma27 ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/networking/mailreaders/notbit/default.nix b/pkgs/applications/networking/mailreaders/notbit/default.nix
index 370c4f8388704..868037c33c1ae 100644
--- a/pkgs/applications/networking/mailreaders/notbit/default.nix
+++ b/pkgs/applications/networking/mailreaders/notbit/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A minimal Bitmessage client";
-    homepage = https://github.com/bpeel/notbit;
+    homepage = "https://github.com/bpeel/notbit";
     license = licenses.mit;
     platforms = platforms.unix;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/networking/mailreaders/notmuch-addrlookup/default.nix b/pkgs/applications/networking/mailreaders/notmuch-addrlookup/default.nix
index 86aef50113421..19b90b534efb4 100644
--- a/pkgs/applications/networking/mailreaders/notmuch-addrlookup/default.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch-addrlookup/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Address lookup tool for Notmuch in C";
-    homepage = https://github.com/aperezdc/notmuch-addrlookup-c;
+    homepage = "https://github.com/aperezdc/notmuch-addrlookup-c";
     maintainers = with maintainers; [ mog ];
     platforms = platforms.unix;
     license = licenses.mit;
diff --git a/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix b/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix
index d9eae3c9c5034..0b2a76cc00f8d 100644
--- a/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/wangp/bower;
+    homepage = "https://github.com/wangp/bower";
     description = "A curses terminal client for the Notmuch email system";
     maintainers = with maintainers; [ erictapen ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/networking/mailreaders/notmuch/default.nix b/pkgs/applications/networking/mailreaders/notmuch/default.nix
index e4a09ec5a161e..d9ed62bb94da6 100644
--- a/pkgs/applications/networking/mailreaders/notmuch/default.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch/default.nix
@@ -94,7 +94,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Mail indexer";
-    homepage    = https://notmuchmail.org/;
+    homepage    = "https://notmuchmail.org/";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ flokli puckipedia the-kenny ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/networking/mailreaders/notmuch/mutt.nix b/pkgs/applications/networking/mailreaders/notmuch/mutt.nix
index 7382b97ba8113..18264c5c6af48 100644
--- a/pkgs/applications/networking/mailreaders/notmuch/mutt.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch/mutt.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     inherit version;
     description = "Mutt support for notmuch";
-    homepage    = https://notmuchmail.org/;
+    homepage    = "https://notmuchmail.org/";
     license     = with licenses; gpl3;
     maintainers = with maintainers; [ peterhoeg ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/networking/mailreaders/sylpheed/default.nix b/pkgs/applications/networking/mailreaders/sylpheed/default.nix
index 8e1f672012072..8f268e67c3042 100644
--- a/pkgs/applications/networking/mailreaders/sylpheed/default.nix
+++ b/pkgs/applications/networking/mailreaders/sylpheed/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
     ++ optional sslSupport "--enable-ssl";
 
   meta = {
-    homepage = http://sylpheed.sraoss.jp/en/;
+    homepage = "http://sylpheed.sraoss.jp/en/";
     description = "Lightweight and user-friendly e-mail client";
     maintainers = with maintainers; [ eelco ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix b/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
index f46e355cd570f..e9217c84fc69a 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
@@ -180,10 +180,10 @@ stdenv.mkDerivation {
   };
   meta = with stdenv.lib; {
     description = "Mozilla Thunderbird, a full-featured email client (binary package)";
-    homepage = http://www.mozilla.org/thunderbird/;
+    homepage = "http://www.mozilla.org/thunderbird/";
     license = {
       free = false;
-      url = http://www.mozilla.org/en-US/foundation/trademarks/policy/;
+      url = "http://www.mozilla.org/en-US/foundation/trademarks/policy/";
     };
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/modem-manager-gui/default.nix b/pkgs/applications/networking/modem-manager-gui/default.nix
index f9cda71b7a5af..e8b7645db8729 100644
--- a/pkgs/applications/networking/modem-manager-gui/default.nix
+++ b/pkgs/applications/networking/modem-manager-gui/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   version = "0.0.19.1";
 
   src = fetchhg {
-    url = https://linuxonly@bitbucket.org/linuxonly/modem-manager-gui;
+    url = "https://linuxonly@bitbucket.org/linuxonly/modem-manager-gui";
     rev = "version ${version}";
     sha256 = "11iibh36567814h2bz41sa1072b86p1l13xyj670pwkh9k8kw8fd";
   };
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
       functions. You can check balance of your SIM card, send or receive SMS
       messages, control mobile traffic consumption and more.
     '';
-    homepage = https://linuxonly.ru/page/modem-manager-gui;
+    homepage = "https://linuxonly.ru/page/modem-manager-gui";
     license = licenses.gpl3;
     maintainers = with maintainers; [ ahuzik ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/mpop/default.nix b/pkgs/applications/networking/mpop/default.nix
index dce1934febf43..b0f6859e69c99 100644
--- a/pkgs/applications/networking/mpop/default.nix
+++ b/pkgs/applications/networking/mpop/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
       description = "POP3 mail retrieval agent";
-      homepage = https://marlam.de/mpop;
+      homepage = "https://marlam.de/mpop";
       license = licenses.gpl3Plus;
       platforms = platforms.unix;
     };
diff --git a/pkgs/applications/networking/msmtp/default.nix b/pkgs/applications/networking/msmtp/default.nix
index 58190944b6402..cd394d1ac536f 100644
--- a/pkgs/applications/networking/msmtp/default.nix
+++ b/pkgs/applications/networking/msmtp/default.nix
@@ -51,7 +51,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple and easy to use SMTP client with excellent sendmail compatibility";
-    homepage = https://marlam.de/msmtp/;
+    homepage = "https://marlam.de/msmtp/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/ndppd/default.nix b/pkgs/applications/networking/ndppd/default.nix
index 42950f23a8439..931453624811e 100644
--- a/pkgs/applications/networking/ndppd/default.nix
+++ b/pkgs/applications/networking/ndppd/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A daemon that proxies NDP (Neighbor Discovery Protocol) messages between interfaces";
-    homepage = https://github.com/DanielAdolfsson/ndppd;
+    homepage = "https://github.com/DanielAdolfsson/ndppd";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ fadenb globin ];
diff --git a/pkgs/applications/networking/netperf/default.nix b/pkgs/applications/networking/netperf/default.nix
index c2a84971bc294..c2e51ee743b5c 100644
--- a/pkgs/applications/networking/netperf/default.nix
+++ b/pkgs/applications/networking/netperf/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Benchmark to measure the performance of many different types of networking";
-    homepage = http://www.netperf.org/netperf/;
+    homepage = "http://www.netperf.org/netperf/";
     license = "Hewlett-Packard BSD-like license";
 
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/newsreaders/liferea/default.nix b/pkgs/applications/networking/newsreaders/liferea/default.nix
index 6352922e33e96..f1e8905089c9d 100644
--- a/pkgs/applications/networking/newsreaders/liferea/default.nix
+++ b/pkgs/applications/networking/newsreaders/liferea/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A GTK-based news feed aggregator";
-    homepage = http://lzone.de/liferea/;
+    homepage = "http://lzone.de/liferea/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ vcunat romildo ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/newsreaders/pan/default.nix b/pkgs/applications/networking/newsreaders/pan/default.nix
index f50d9516167a7..454e19fd8974b 100644
--- a/pkgs/applications/networking/newsreaders/pan/default.nix
+++ b/pkgs/applications/networking/newsreaders/pan/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A GTK-based Usenet newsreader good at both text and binaries";
-    homepage = http://pan.rebelbase.com/;
+    homepage = "http://pan.rebelbase.com/";
     maintainers = [ stdenv.lib.maintainers.eelco ];
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/networking/newsreaders/quiterss/default.nix b/pkgs/applications/networking/newsreaders/quiterss/default.nix
index 2333d47d82023..6fa4dc19799c4 100644
--- a/pkgs/applications/networking/newsreaders/quiterss/default.nix
+++ b/pkgs/applications/networking/newsreaders/quiterss/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       QuiteRSS is a open-source cross-platform RSS/Atom news feeds reader
       written on Qt/C++
     '';
-    homepage = https://quiterss.org;
+    homepage = "https://quiterss.org";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ primeos ];
diff --git a/pkgs/applications/networking/newsreaders/slrn/default.nix b/pkgs/applications/networking/newsreaders/slrn/default.nix
index e8fff0deddf10..1cc9c39c991d5 100644
--- a/pkgs/applications/networking/newsreaders/slrn/default.nix
+++ b/pkgs/applications/networking/newsreaders/slrn/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The slrn (S-Lang read news) newsreader";
-    homepage = http://slrn.sourceforge.net/index.html;
+    homepage = "http://slrn.sourceforge.net/index.html";
     maintainers = with maintainers; [ ehmry ];
     license = licenses.gpl2;
     platforms = with platforms; linux;
diff --git a/pkgs/applications/networking/nextcloud-client/default.nix b/pkgs/applications/networking/nextcloud-client/default.nix
index 7e096ca94e30b..2560bc806eac4 100644
--- a/pkgs/applications/networking/nextcloud-client/default.nix
+++ b/pkgs/applications/networking/nextcloud-client/default.nix
@@ -58,7 +58,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Nextcloud themed desktop client";
-    homepage = https://nextcloud.com;
+    homepage = "https://nextcloud.com";
     license = licenses.gpl2;
     maintainers = with maintainers; [ caugner ma27 ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/nload/default.nix b/pkgs/applications/networking/nload/default.nix
index 16cc0e3d50a2e..85a39f7e656ad 100644
--- a/pkgs/applications/networking/nload/default.nix
+++ b/pkgs/applications/networking/nload/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       using two graphs and provides additional info like total amount of
       transfered data and min/max network usage.
     '';
-    homepage = http://www.roland-riegel.de/nload/index.html;
+    homepage = "http://www.roland-riegel.de/nload/index.html";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/networking/nntp-proxy/default.nix b/pkgs/applications/networking/nntp-proxy/default.nix
index 96bdc0b1dfa44..3986f2b67cb23 100644
--- a/pkgs/applications/networking/nntp-proxy/default.nix
+++ b/pkgs/applications/networking/nntp-proxy/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Simple NNTP proxy with SSL support";
-    homepage = https://github.com/nieluj/nntp-proxy;
+    homepage = "https://github.com/nieluj/nntp-proxy";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.fadenb ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/networking/offrss/default.nix b/pkgs/applications/networking/offrss/default.nix
index d91bfbae501d7..679e966373b62 100644
--- a/pkgs/applications/networking/offrss/default.nix
+++ b/pkgs/applications/networking/offrss/default.nix
@@ -22,12 +22,12 @@ stdenv.mkDerivation {
   '';
 
   src = fetchurl {
-    url = http://vicerveza.homeunix.net/~viric/soft/offrss/offrss-1.3.tar.gz;
+    url = "http://vicerveza.homeunix.net/~viric/soft/offrss/offrss-1.3.tar.gz";
     sha256 = "1akw1x84jj2m9z60cvlvmz21qwlaywmw18pl7lgp3bj5nw6250p6";
   };
 
   meta = {
-    homepage = http://vicerveza.homeunix.net/~viric/cgi-bin/offrss;
+    homepage = "http://vicerveza.homeunix.net/~viric/cgi-bin/offrss";
     description = "Offline RSS/Atom reader";
     license="AGPLv3+";
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/networking/ostinato/default.nix b/pkgs/applications/networking/ostinato/default.nix
index 3f48601d96f59..aa9d94ad5b6e6 100644
--- a/pkgs/applications/networking/ostinato/default.nix
+++ b/pkgs/applications/networking/ostinato/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A packet traffic generator and analyzer";
-    homepage    = https://ostinato.org;
+    homepage    = "https://ostinato.org";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ rick68 ];
     platforms   = with platforms; linux ++ darwin ++ cygwin;
diff --git a/pkgs/applications/networking/owamp/default.nix b/pkgs/applications/networking/owamp/default.nix
index 4dad5f4d6bdf3..3608ef982a9b8 100644
--- a/pkgs/applications/networking/owamp/default.nix
+++ b/pkgs/applications/networking/owamp/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://software.internet2.edu/owamp/;
+    homepage = "http://software.internet2.edu/owamp/";
     description = ''A tool for performing one-way active measurements'';
     platforms = platforms.linux;
     maintainers = [maintainers.teto];
diff --git a/pkgs/applications/networking/owncloud-client/default.nix b/pkgs/applications/networking/owncloud-client/default.nix
index 998944838e8ec..3fc9fedc4138a 100644
--- a/pkgs/applications/networking/owncloud-client/default.nix
+++ b/pkgs/applications/networking/owncloud-client/default.nix
@@ -21,7 +21,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Synchronise your ownCloud with your computer using this desktop client";
-    homepage = https://owncloud.org;
+    homepage = "https://owncloud.org";
     maintainers = [ maintainers.qknight ];
     platforms = platforms.unix;
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/networking/p2p/deluge/default.nix b/pkgs/applications/networking/p2p/deluge/default.nix
index 63218f1c2ffc8..cafba65c788b9 100644
--- a/pkgs/applications/networking/p2p/deluge/default.nix
+++ b/pkgs/applications/networking/p2p/deluge/default.nix
@@ -32,7 +32,7 @@ pythonPackages.buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://deluge-torrent.org;
+    homepage = "https://deluge-torrent.org";
     description = "Torrent client";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ domenkozar ebzzry ];
diff --git a/pkgs/applications/networking/p2p/eiskaltdcpp/default.nix b/pkgs/applications/networking/p2p/eiskaltdcpp/default.nix
index 2692e5360cec0..9355bfa5b8d9c 100644
--- a/pkgs/applications/networking/p2p/eiskaltdcpp/default.nix
+++ b/pkgs/applications/networking/p2p/eiskaltdcpp/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A cross-platform program that uses the Direct Connect and ADC protocols";
-    homepage = https://github.com/eiskaltdcpp/eiskaltdcpp;
+    homepage = "https://github.com/eiskaltdcpp/eiskaltdcpp";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/p2p/freenet/default.nix b/pkgs/applications/networking/p2p/freenet/default.nix
index 2443528848832..017f059ff6c36 100644
--- a/pkgs/applications/networking/p2p/freenet/default.nix
+++ b/pkgs/applications/networking/p2p/freenet/default.nix
@@ -2,7 +2,7 @@
 
 let
   freenet_ext = fetchurl {
-    url = https://downloads.freenetproject.org/latest/freenet-ext.jar;
+    url = "https://downloads.freenetproject.org/latest/freenet-ext.jar";
     sha256 = "17ypljdvazgx2z6hhswny1lxfrknysz3x6igx8vl3xgdpvbb7wij";
   };
 
@@ -12,7 +12,7 @@ let
     sha256 = "0abmhg2h44g8c5p7skzqwfxj8xwcjh9vs84mc0hr78k1am0633jk";
   };
   seednodes = fetchurl {
-    url = https://downloads.freenetproject.org/alpha/opennet/seednodes.fref;
+    url = "https://downloads.freenetproject.org/alpha/opennet/seednodes.fref";
     sha256 = "08awwr8n80b4cdzzb3y8hf2fzkr1f2ly4nlq779d6pvi5jymqdvv";
   };
   version = "build01475";
@@ -72,7 +72,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "Decentralised and censorship-resistant network";
-    homepage = https://freenetproject.org/;
+    homepage = "https://freenetproject.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.doublec ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/p2p/frostwire/default.nix b/pkgs/applications/networking/p2p/frostwire/default.nix
index 0449540eaff15..65e2165f64eee 100644
--- a/pkgs/applications/networking/p2p/frostwire/default.nix
+++ b/pkgs/applications/networking/p2p/frostwire/default.nix
@@ -85,7 +85,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.frostwire.com/;
+    homepage = "https://www.frostwire.com/";
     description = "BitTorrent Client and Cloud File Downloader";
     license = licenses.gpl2;
     maintainers = with maintainers; [ gavin ];
diff --git a/pkgs/applications/networking/p2p/gnunet/default.nix b/pkgs/applications/networking/p2p/gnunet/default.nix
index e4b306453a41d..5abee0108ec30 100644
--- a/pkgs/applications/networking/p2p/gnunet/default.nix
+++ b/pkgs/applications/networking/p2p/gnunet/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
       network are rewarded with better service.
     '';
 
-    homepage = https://gnunet.org/;
+    homepage = "https://gnunet.org/";
     license = licenses.agpl3Plus;
     maintainers = with maintainers; [ vrthra ];
     platforms = platforms.gnu ++ platforms.linux;
diff --git a/pkgs/applications/networking/p2p/gnunet/git.nix b/pkgs/applications/networking/p2p/gnunet/git.nix
index e8f209239bfe6..b3d455599bf0c 100644
--- a/pkgs/applications/networking/p2p/gnunet/git.nix
+++ b/pkgs/applications/networking/p2p/gnunet/git.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   name = "gnunet-git-${rev}";
 
   src = fetchgit {
-    url =  https://gnunet.org/git/gnunet.git;
+    url =  "https://gnunet.org/git/gnunet.git";
     inherit rev;
     sha256 = "0gbw920m9v4b3425c0d1h7drgl2m1fni1bwjn4fwqnyz7kdqzsgl";
   };
@@ -82,7 +82,7 @@ stdenv.mkDerivation {
       network are rewarded with better service.
     '';
 
-    homepage = https://gnunet.org/;
+    homepage = "https://gnunet.org/";
 
     license = licenses.agpl3Plus;
 
diff --git a/pkgs/applications/networking/p2p/ktorrent/default.nix b/pkgs/applications/networking/p2p/ktorrent/default.nix
index e38378d09b32c..19be24bd1b184 100644
--- a/pkgs/applications/networking/p2p/ktorrent/default.nix
+++ b/pkgs/applications/networking/p2p/ktorrent/default.nix
@@ -26,7 +26,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "KDE integrated BtTorrent client";
-    homepage    = https://www.kde.org/applications/internet/ktorrent/;
+    homepage    = "https://www.kde.org/applications/internet/ktorrent/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ eelco ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/networking/p2p/magnetico/default.nix b/pkgs/applications/networking/p2p/magnetico/default.nix
index f07db173dbcfc..da7713d7bc62c 100644
--- a/pkgs/applications/networking/p2p/magnetico/default.nix
+++ b/pkgs/applications/networking/p2p/magnetico/default.nix
@@ -25,7 +25,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description  = "Autonomous (self-hosted) BitTorrent DHT search engine suite.";
-    homepage     = https://github.com/boramalper/magnetico;
+    homepage     = "https://github.com/boramalper/magnetico";
     license      = licenses.agpl3;
     badPlatforms = platforms.darwin;
     maintainers  = with maintainers; [ rnhmjoj ];
diff --git a/pkgs/applications/networking/p2p/mldonkey/default.nix b/pkgs/applications/networking/p2p/mldonkey/default.nix
index 0ead4b7e3ec4c..786ba434b9288 100644
--- a/pkgs/applications/networking/p2p/mldonkey/default.nix
+++ b/pkgs/applications/networking/p2p/mldonkey/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation ({
   name = "mldonkey-3.1.6";
 
   src = fetchurl {
-    url = https://github.com/ygrek/mldonkey/releases/download/release-3-1-6/mldonkey-3.1.6.tar.bz2;
+    url = "https://github.com/ygrek/mldonkey/releases/download/release-3-1-6/mldonkey-3.1.6.tar.bz2";
     sha256 = "0g84islkj72ymp0zzppcj9n4r21h0vlghnq87hv2wg580mybadhv";
   };
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation ({
 
   meta = {
     description = "Client for many p2p networks, with multiple frontends";
-    homepage = http://mldonkey.sourceforge.net/;
+    homepage = "http://mldonkey.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/networking/p2p/ncdc/default.nix b/pkgs/applications/networking/p2p/ncdc/default.nix
index b28074a2fd6e0..c956f26b11653 100644
--- a/pkgs/applications/networking/p2p/ncdc/default.nix
+++ b/pkgs/applications/networking/p2p/ncdc/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Modern and lightweight direct connect client with a friendly ncurses interface";
-    homepage = https://dev.yorhel.nl/ncdc;
+    homepage = "https://dev.yorhel.nl/ncdc";
     license = licenses.mit;
     platforms = platforms.linux; # arbitrary
     maintainers = with maintainers; [ ehmry ];
diff --git a/pkgs/applications/networking/p2p/opentracker/default.nix b/pkgs/applications/networking/p2p/opentracker/default.nix
index 46c482818f8b7..ed44ff24fecf1 100644
--- a/pkgs/applications/networking/p2p/opentracker/default.nix
+++ b/pkgs/applications/networking/p2p/opentracker/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://erdgeist.org/arts/software/opentracker/;
+    homepage = "https://erdgeist.org/arts/software/opentracker/";
     license = licenses.beerware;
     platforms = platforms.linux;
     description = "Bittorrent tracker project which aims for minimal resource usage and is intended to run at your wlan router.";
diff --git a/pkgs/applications/networking/p2p/qbittorrent/default.nix b/pkgs/applications/networking/p2p/qbittorrent/default.nix
index 3dd55f3c5b857..39740f53475c5 100644
--- a/pkgs/applications/networking/p2p/qbittorrent/default.nix
+++ b/pkgs/applications/networking/p2p/qbittorrent/default.nix
@@ -39,7 +39,7 @@ mkDerivation rec {
 
   meta = {
     description = "Featureful free software BitTorrent client";
-    homepage    = https://www.qbittorrent.org/;
+    homepage    = "https://www.qbittorrent.org/";
     license     = licenses.gpl2;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ Anton-Latukha ];
diff --git a/pkgs/applications/networking/p2p/retroshare/default.nix b/pkgs/applications/networking/p2p/retroshare/default.nix
index f10714031ff01..ce6d3958c9b0e 100644
--- a/pkgs/applications/networking/p2p/retroshare/default.nix
+++ b/pkgs/applications/networking/p2p/retroshare/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "";
-    homepage = http://retroshare.sourceforge.net/;
+    homepage = "http://retroshare.sourceforge.net/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.domenkozar ];
diff --git a/pkgs/applications/networking/p2p/soulseekqt/default.nix b/pkgs/applications/networking/p2p/soulseekqt/default.nix
index a5e8d85f128e5..2a8a06227133d 100644
--- a/pkgs/applications/networking/p2p/soulseekqt/default.nix
+++ b/pkgs/applications/networking/p2p/soulseekqt/default.nix
@@ -51,7 +51,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Official Qt SoulSeek client";
-    homepage = https://www.slsknet.org;
+    homepage = "https://www.slsknet.org";
     license = licenses.unfree;
     maintainers = [ maintainers.genesis ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/p2p/synapse-bt/default.nix b/pkgs/applications/networking/p2p/synapse-bt/default.nix
index 65cf21c1611c7..80d9078944014 100644
--- a/pkgs/applications/networking/p2p/synapse-bt/default.nix
+++ b/pkgs/applications/networking/p2p/synapse-bt/default.nix
@@ -21,7 +21,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Flexible and fast BitTorrent daemon";
-    homepage = https://synapse-bt.org/;
+    homepage = "https://synapse-bt.org/";
     license = licenses.isc;
     maintainers = with maintainers; [ dywedir ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/p2p/tixati/default.nix b/pkgs/applications/networking/p2p/tixati/default.nix
index 05268bdaead12..8691335d12906 100644
--- a/pkgs/applications/networking/p2p/tixati/default.nix
+++ b/pkgs/applications/networking/p2p/tixati/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Torrent client";
-    homepage = http://www.tixati.com;
+    homepage = "http://www.tixati.com";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ volth ];
diff --git a/pkgs/applications/networking/p2p/torrential/default.nix b/pkgs/applications/networking/p2p/torrential/default.nix
index 01da8a633742c..1bf99165858d4 100644
--- a/pkgs/applications/networking/p2p/torrential/default.nix
+++ b/pkgs/applications/networking/p2p/torrential/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Download torrents in style with this speedy, minimalist torrent client for elementary OS";
-    homepage = https://github.com/davidmhewitt/torrential;
+    homepage = "https://github.com/davidmhewitt/torrential";
     maintainers = with maintainers; [ kjuvi ] ++ pantheon.maintainers;
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/networking/p2p/transgui/default.nix b/pkgs/applications/networking/p2p/transgui/default.nix
index 51d591995b768..dbe3bb50e6d0b 100644
--- a/pkgs/applications/networking/p2p/transgui/default.nix
+++ b/pkgs/applications/networking/p2p/transgui/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A cross platform front-end for the Transmission Bit-Torrent client";
-    homepage = https://sourceforge.net/p/transgui;
+    homepage = "https://sourceforge.net/p/transgui";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ ramkromberg ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/p2p/transmission-remote-cli/default.nix b/pkgs/applications/networking/p2p/transmission-remote-cli/default.nix
index e05ca43eb5077..7c6e35752a016 100644
--- a/pkgs/applications/networking/p2p/transmission-remote-cli/default.nix
+++ b/pkgs/applications/networking/p2p/transmission-remote-cli/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Curses interface for the Transmission BitTorrent daemon";
-    homepage = https://github.com/fagga/transmission-remote-cli;
+    homepage = "https://github.com/fagga/transmission-remote-cli";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/networking/p2p/transmission-remote-gtk/default.nix b/pkgs/applications/networking/p2p/transmission-remote-gtk/default.nix
index 68babaddd1bc8..8e74b82b69d38 100644
--- a/pkgs/applications/networking/p2p/transmission-remote-gtk/default.nix
+++ b/pkgs/applications/networking/p2p/transmission-remote-gtk/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GTK remote control for the Transmission BitTorrent client";
-    homepage = https://github.com/ajf8/transmission-remote-gtk;
+    homepage = "https://github.com/ajf8/transmission-remote-gtk";
     license = licenses.gpl2;
     maintainers = [ maintainers.ehmry ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/p2p/transmission/default.nix b/pkgs/applications/networking/p2p/transmission/default.nix
index 25996953e11ac..0e80e1397faf9 100644
--- a/pkgs/applications/networking/p2p/transmission/default.nix
+++ b/pkgs/applications/networking/p2p/transmission/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
         * Bluetack (PeerGuardian) blocklists with automatic updates
         * Full encryption, DHT, and PEX support
     '';
-    homepage = http://www.transmissionbt.com/;
+    homepage = "http://www.transmissionbt.com/";
     license = licenses.gpl2; # parts are under MIT
     maintainers = with maintainers; [ astsmtl vcunat wizeman ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/p2p/twister/default.nix b/pkgs/applications/networking/p2p/twister/default.nix
index 30491470392ac..03cb381f5eb4a 100644
--- a/pkgs/applications/networking/p2p/twister/default.nix
+++ b/pkgs/applications/networking/p2p/twister/default.nix
@@ -59,7 +59,7 @@ in stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = http://www.twister.net.co/;
+    homepage = "http://www.twister.net.co/";
     description = "Peer-to-peer microblogging";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/networking/p2p/vuze/default.nix b/pkgs/applications/networking/p2p/vuze/default.nix
index b1d3c73129aa7..be2421ef4d264 100644
--- a/pkgs/applications/networking/p2p/vuze/default.nix
+++ b/pkgs/applications/networking/p2p/vuze/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Torrent client";
-    homepage = http://www.vuze.com;
+    homepage = "http://www.vuze.com";
     license = licenses.unfree;
     platforms = platforms.all;
     maintainers = with maintainers; [ volth ];
diff --git a/pkgs/applications/networking/ping/default.nix b/pkgs/applications/networking/ping/default.nix
index 925618bbe9915..e69c5dc84f373 100644
--- a/pkgs/applications/networking/ping/default.nix
+++ b/pkgs/applications/networking/ping/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A helpful tool that lets you debug what part of your API is causing you issues";
-    homepage = https://github.com/jeremyvaartjes/ping;
+    homepage = "https://github.com/jeremyvaartjes/ping";
     maintainers = with maintainers; [ kjuvi ] ++ pantheon.maintainers;
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/networking/pjsip/default.nix b/pkgs/applications/networking/pjsip/default.nix
index f3d41219470de..6ac2e89cf40e8 100644
--- a/pkgs/applications/networking/pjsip/default.nix
+++ b/pkgs/applications/networking/pjsip/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A multimedia communication library written in C, implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE";
-    homepage = https://pjsip.org/;
+    homepage = "https://pjsip.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [olynch];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/protocol/default.nix b/pkgs/applications/networking/protocol/default.nix
index 8785d2449b3e8..31b1bd6086ad5 100644
--- a/pkgs/applications/networking/protocol/default.nix
+++ b/pkgs/applications/networking/protocol/default.nix
@@ -13,7 +13,7 @@ buildPythonApplication {
 
   meta = with stdenv.lib; {
     description = "An ASCII Header Generator for Network Protocols";
-    homepage = https://github.com/luismartingarcia/protocol;
+    homepage = "https://github.com/luismartingarcia/protocol";
     license = licenses.gpl3;
     maintainers = with maintainers; [ teto ];
   };
diff --git a/pkgs/applications/networking/protonvpn-cli/default.nix b/pkgs/applications/networking/protonvpn-cli/default.nix
index f426a7c3a581d..c48f6c8202691 100644
--- a/pkgs/applications/networking/protonvpn-cli/default.nix
+++ b/pkgs/applications/networking/protonvpn-cli/default.nix
@@ -35,7 +35,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "ProtonVPN Command-Line Tool";
-    homepage = https://github.com/ProtonVPN/protonvpn-cli;
+    homepage = "https://github.com/ProtonVPN/protonvpn-cli";
     maintainers = with maintainers; [ caugner ];
     license = licenses.mit;
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/ps2client/default.nix b/pkgs/applications/networking/ps2client/default.nix
index d75f92cb25c7f..02b14b72c18b0 100644
--- a/pkgs/applications/networking/ps2client/default.nix
+++ b/pkgs/applications/networking/ps2client/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Desktop clients to interact with ps2link and ps2netfs";
-    homepage = https://github.com/ps2dev/ps2client;
+    homepage = "https://github.com/ps2dev/ps2client";
     license = licenses.bsd3;
     maintainers = [ maintainers.genesis ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/pyload/beautifulsoup.nix b/pkgs/applications/networking/pyload/beautifulsoup.nix
index 66470bf8f3147..8eb0c2298fd3a 100644
--- a/pkgs/applications/networking/pyload/beautifulsoup.nix
+++ b/pkgs/applications/networking/pyload/beautifulsoup.nix
@@ -13,7 +13,7 @@ pythonPackages.buildPythonPackage {
   doCheck = false;
 
   meta = {
-    homepage = http://www.crummy.com/software/BeautifulSoup/;
+    homepage = "http://www.crummy.com/software/BeautifulSoup/";
     license = "bsd";
     description = "Undemanding HTML/XML parser";
   };
diff --git a/pkgs/applications/networking/pyload/default.nix b/pkgs/applications/networking/pyload/default.nix
index 3df21d414e04e..f173e56abb34e 100644
--- a/pkgs/applications/networking/pyload/default.nix
+++ b/pkgs/applications/networking/pyload/default.nix
@@ -52,7 +52,7 @@ in pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Free and open source downloader for 1-click-hosting sites";
-    homepage = https://github.com/pyload/pyload;
+    homepage = "https://github.com/pyload/pyload";
     license = licenses.gpl3;
     maintainers = [ maintainers.mahe ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/remote/citrix-workspace/default.nix b/pkgs/applications/networking/remote/citrix-workspace/default.nix
index f6ec85f3c2cf0..0936f4e75521b 100644
--- a/pkgs/applications/networking/remote/citrix-workspace/default.nix
+++ b/pkgs/applications/networking/remote/citrix-workspace/default.nix
@@ -38,7 +38,7 @@ let
         x86hash   = "16v3kgavrh62z6vxcbw6mn7h0bfishpl7m92k7g1p2882r1f8vaf";
         x64suffix = "60";
         x86suffix = "60";
-        homepage  = https://www.citrix.com/downloads/workspace-app/legacy-workspace-app-for-linux/workspace-app-for-linux-latest.html;
+        homepage  = "https://www.citrix.com/downloads/workspace-app/legacy-workspace-app-for-linux/workspace-app-for-linux-latest.html";
       };
 
       "19.8.0" = {
@@ -49,7 +49,7 @@ let
         x86hash   = "0afcqirb4q349r3izy88vqkszg6y2wg14iwypk6nrmvwgvcl6jdn";
         x64suffix = "20";
         x86suffix = "20";
-        homepage  = https://www.citrix.com/downloads/workspace-app/legacy-workspace-app-for-linux/workspace-app-for-linux-1908.html;
+        homepage  = "https://www.citrix.com/downloads/workspace-app/legacy-workspace-app-for-linux/workspace-app-for-linux-1908.html";
       };
 
       "19.10.0" = {
@@ -60,7 +60,7 @@ let
         x86hash   = "000zjik8wf8b6fadnsai0p77b4n2l95544zx503iyrb9pv53bj3y";
         x64suffix = "15";
         x86suffix = "15";
-        homepage  = https://www.citrix.com/downloads/workspace-app/legacy-workspace-app-for-linux/workspace-app-for-linux-1910.html;
+        homepage  = "https://www.citrix.com/downloads/workspace-app/legacy-workspace-app-for-linux/workspace-app-for-linux-1910.html";
       };
 
       "19.12.0" = {
@@ -71,7 +71,7 @@ let
         x86hash   = "07rfp90ksnvr8zv7ix7f0z6a59n48s7bd4kqbzilfwxgs4ddqmcy";
         x64suffix = "19";
         x86suffix = "19";
-        homepage  = https://www.citrix.com/de-de/downloads/workspace-app/linux/workspace-app-for-linux-latest.html;
+        homepage  = "https://www.citrix.com/de-de/downloads/workspace-app/linux/workspace-app-for-linux-latest.html";
       };
     };
 
diff --git a/pkgs/applications/networking/remote/freerdp/default.nix b/pkgs/applications/networking/remote/freerdp/default.nix
index 5963c6b6c950d..1dbf80f20f553 100644
--- a/pkgs/applications/networking/remote/freerdp/default.nix
+++ b/pkgs/applications/networking/remote/freerdp/default.nix
@@ -69,7 +69,7 @@ stdenv.mkDerivation rec {
       FreeRDP is a client-side implementation of the Remote Desktop Protocol (RDP)
       following the Microsoft Open Specifications.
     '';
-    homepage = http://www.freerdp.com/;
+    homepage = "http://www.freerdp.com/";
     license = licenses.asl20;
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/remote/putty/default.nix b/pkgs/applications/networking/remote/putty/default.nix
index 49182ec182fef..804a40a614c5d 100644
--- a/pkgs/applications/networking/remote/putty/default.nix
+++ b/pkgs/applications/networking/remote/putty/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
       platforms, along with an xterm terminal emulator.
       It is written and maintained primarily by Simon Tatham.
     '';
-    homepage = https://www.chiark.greenend.org.uk/~sgtatham/putty/;
+    homepage = "https://www.chiark.greenend.org.uk/~sgtatham/putty/";
     license = licenses.mit;
     platforms = platforms.unix ++ platforms.windows;
   };
diff --git a/pkgs/applications/networking/remote/rdesktop/default.nix b/pkgs/applications/networking/remote/rdesktop/default.nix
index 9c9abe55daa61..02a2c63b4397e 100644
--- a/pkgs/applications/networking/remote/rdesktop/default.nix
+++ b/pkgs/applications/networking/remote/rdesktop/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation (rec {
 
   meta = {
     description = "Open source client for Windows Terminal Services";
-    homepage = http://www.rdesktop.org/;
+    homepage = "http://www.rdesktop.org/";
     platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     license = stdenv.lib.licenses.gpl2;
   };
diff --git a/pkgs/applications/networking/remote/teamviewer/default.nix b/pkgs/applications/networking/remote/teamviewer/default.nix
index 6fe77790b74ac..dbb9d465cc7fc 100644
--- a/pkgs/applications/networking/remote/teamviewer/default.nix
+++ b/pkgs/applications/networking/remote/teamviewer/default.nix
@@ -57,7 +57,7 @@ mkDerivation rec {
   preferLocalBuild = true;
 
   meta = with lib; {
-    homepage = http://www.teamviewer.com;
+    homepage = "http://www.teamviewer.com";
     license = licenses.unfree;
     description = "Desktop sharing application, providing remote support and online meetings";
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/networking/remote/waypipe/default.nix b/pkgs/applications/networking/remote/waypipe/default.nix
index d253e766284fe..03be60a99489a 100644
--- a/pkgs/applications/networking/remote/waypipe/default.nix
+++ b/pkgs/applications/networking/remote/waypipe/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
       serializes changes to shared memory buffers over a single socket. This
       makes application forwarding similar to ssh -X feasible.
     '';
-    homepage = https://mstoeckl.com/notes/gsoc/blog.html;
+    homepage = "https://mstoeckl.com/notes/gsoc/blog.html";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ primeos ];
diff --git a/pkgs/applications/networking/remote/x2goclient/default.nix b/pkgs/applications/networking/remote/x2goclient/default.nix
index 13bcbf9b57e11..047458067357c 100644
--- a/pkgs/applications/networking/remote/x2goclient/default.nix
+++ b/pkgs/applications/networking/remote/x2goclient/default.nix
@@ -32,7 +32,7 @@ mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Graphical NoMachine NX3 remote desktop client";
-    homepage = http://x2go.org/;
+    homepage = "http://x2go.org/";
     license = licenses.gpl2;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/remote/xrdp/default.nix b/pkgs/applications/networking/remote/xrdp/default.nix
index 5d33f186df7bd..9941951225ca3 100644
--- a/pkgs/applications/networking/remote/xrdp/default.nix
+++ b/pkgs/applications/networking/remote/xrdp/default.nix
@@ -96,7 +96,7 @@ let
 
     meta = with stdenv.lib; {
       description = "An open source RDP server";
-      homepage = https://github.com/neutrinolabs/xrdp;
+      homepage = "https://github.com/neutrinolabs/xrdp";
       license = licenses.asl20;
       maintainers = [ maintainers.volth ];
       platforms = platforms.linux;
diff --git a/pkgs/applications/networking/resilio-sync/default.nix b/pkgs/applications/networking/resilio-sync/default.nix
index 14d418cd2bfb5..883a152fdf97d 100644
--- a/pkgs/applications/networking/resilio-sync/default.nix
+++ b/pkgs/applications/networking/resilio-sync/default.nix
@@ -31,7 +31,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Automatically sync files via secure, distributed technology";
-    homepage    = https://www.resilio.com/;
+    homepage    = "https://www.resilio.com/";
     license     = licenses.unfreeRedistributable;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ domenkozar thoughtpolice cwoac ];
diff --git a/pkgs/applications/networking/sieve-connect/default.nix b/pkgs/applications/networking/sieve-connect/default.nix
index dc578dccd19de..c81cc78a9b551 100644
--- a/pkgs/applications/networking/sieve-connect/default.nix
+++ b/pkgs/applications/networking/sieve-connect/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
       as specifed in RFC 5804. Historically, this was MANAGESIEVE as
       implemented by timsieved in Cyrus IMAP.
     '';
-    homepage = https://github.com/philpennock/sieve-connect;
+    homepage = "https://github.com/philpennock/sieve-connect";
     license = licenses.bsd3;
     platforms = platforms.unix;
     maintainers = with maintainers; [ das_j ];
diff --git a/pkgs/applications/networking/siproxd/default.nix b/pkgs/applications/networking/siproxd/default.nix
index cd697f107b358..e664ee20c237a 100644
--- a/pkgs/applications/networking/siproxd/default.nix
+++ b/pkgs/applications/networking/siproxd/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libosip ];
 
   meta = {
-    homepage = http://siproxd.sourceforge.net/;
+    homepage = "http://siproxd.sourceforge.net/";
     description = "A masquerading SIP Proxy Server";
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/sniffers/etherape/default.nix b/pkgs/applications/networking/sniffers/etherape/default.nix
index 81c48cff4a012..9c295c2791561 100644
--- a/pkgs/applications/networking/sniffers/etherape/default.nix
+++ b/pkgs/applications/networking/sniffers/etherape/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://etherape.sourceforge.net/;
+    homepage = "http://etherape.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = with platforms; linux;
     maintainers = with maintainers; [ symphorien ];
diff --git a/pkgs/applications/networking/sniffers/ettercap/default.nix b/pkgs/applications/networking/sniffers/ettercap/default.nix
index c548098baa7ef..4af8e526cd2c5 100644
--- a/pkgs/applications/networking/sniffers/ettercap/default.nix
+++ b/pkgs/applications/networking/sniffers/ettercap/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
       of many protocols and includes many features for network and host
       analysis.
     '';
-    homepage = https://www.ettercap-project.org/;
+    homepage = "https://www.ettercap-project.org/";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/networking/sniffers/kismet/default.nix b/pkgs/applications/networking/sniffers/kismet/default.nix
index 0005a5d230d7c..9775486c156ae 100644
--- a/pkgs/applications/networking/sniffers/kismet/default.nix
+++ b/pkgs/applications/networking/sniffers/kismet/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Wireless network sniffer";
-    homepage = https://www.kismetwireless.net/;
+    homepage = "https://www.kismetwireless.net/";
     license = licenses.gpl3;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/soapui/default.nix b/pkgs/applications/networking/soapui/default.nix
index 9de525d93245e..32a6423243e6b 100644
--- a/pkgs/applications/networking/soapui/default.nix
+++ b/pkgs/applications/networking/soapui/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The Most Advanced REST & SOAP Testing Tool in the World";
-    homepage = https://www.soapui.org/;
+    homepage = "https://www.soapui.org/";
     license = "SoapUI End User License Agreement";
     maintainers = with maintainers; [ gerschtli ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/soulseek/nicotine-plus/default.nix b/pkgs/applications/networking/soulseek/nicotine-plus/default.nix
index 158e6c5dad154..d673917af3161 100644
--- a/pkgs/applications/networking/soulseek/nicotine-plus/default.nix
+++ b/pkgs/applications/networking/soulseek/nicotine-plus/default.nix
@@ -36,7 +36,7 @@ python27Packages.buildPythonApplication {
 
   meta = {
     description = "A graphical client for the SoulSeek peer-to-peer system";
-    homepage = https://www.nicotine-plus.org;
+    homepage = "https://www.nicotine-plus.org";
     license = licenses.gpl3;
     maintainers = with maintainers; [ klntsky ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/spideroak/default.nix b/pkgs/applications/networking/spideroak/default.nix
index 11c8af368b953..90d8ea5533184 100644
--- a/pkgs/applications/networking/spideroak/default.nix
+++ b/pkgs/applications/networking/spideroak/default.nix
@@ -51,7 +51,7 @@ in stdenv.mkDerivation {
   nativeBuildInputs = [ patchelf makeWrapper ];
 
   meta = {
-    homepage = https://spideroak.com;
+    homepage = "https://spideroak.com";
     description = "Secure online backup and sychronization";
     license = stdenv.lib.licenses.unfree;
     maintainers = with stdenv.lib.maintainers; [ amorsillo ];
diff --git a/pkgs/applications/networking/super-productivity/default.nix b/pkgs/applications/networking/super-productivity/default.nix
index c5ff090a80768..7a70375e42c9d 100644
--- a/pkgs/applications/networking/super-productivity/default.nix
+++ b/pkgs/applications/networking/super-productivity/default.nix
@@ -98,7 +98,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "To Do List / Time Tracker with Jira Integration.";
-    homepage = https://super-productivity.com;
+    homepage = "https://super-productivity.com";
     license = licenses.mit;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ offline ];
diff --git a/pkgs/applications/networking/sync/acd_cli/default.nix b/pkgs/applications/networking/sync/acd_cli/default.nix
index 669ab4d1e3e52..c95647c784057 100644
--- a/pkgs/applications/networking/sync/acd_cli/default.nix
+++ b/pkgs/applications/networking/sync/acd_cli/default.nix
@@ -32,7 +32,7 @@ buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A command line interface and FUSE filesystem for Amazon Cloud Drive";
-    homepage = https://github.com/yadayada/acd_cli;
+    homepage = "https://github.com/yadayada/acd_cli";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ edwtjo ];
diff --git a/pkgs/applications/networking/sync/backintime/common.nix b/pkgs/applications/networking/sync/backintime/common.nix
index 36c4dd46222eb..6244cd661d0ad 100644
--- a/pkgs/applications/networking/sync/backintime/common.nix
+++ b/pkgs/applications/networking/sync/backintime/common.nix
@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = https://github.com/bit-team/backintime;
+    homepage = "https://github.com/bit-team/backintime";
     description = "Simple backup tool for Linux";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ ];
diff --git a/pkgs/applications/networking/sync/casync/default.nix b/pkgs/applications/networking/sync/casync/default.nix
index 82a99bf2df10b..461de492ae2db 100644
--- a/pkgs/applications/networking/sync/casync/default.nix
+++ b/pkgs/applications/networking/sync/casync/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Content-Addressable Data Synchronizer";
-    homepage    = https://github.com/systemd/casync;
+    homepage    = "https://github.com/systemd/casync";
     license     = licenses.lgpl21;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ flokli ];
diff --git a/pkgs/applications/networking/sync/desync/default.nix b/pkgs/applications/networking/sync/desync/default.nix
index d38f8b53dbbf1..9831ab34b2eb2 100644
--- a/pkgs/applications/networking/sync/desync/default.nix
+++ b/pkgs/applications/networking/sync/desync/default.nix
@@ -19,7 +19,7 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     description = "Content-addressed binary distribution system";
     longDescription = "An alternate implementation of the casync protocol and storage mechanism with a focus on production-readiness";
-    homepage = https://github.com/folbricht/desync;
+    homepage = "https://github.com/folbricht/desync";
     license = licenses.bsd3;
     platforms = platforms.unix; # *may* work on Windows, but varies between releases.
     maintainers = [ maintainers.chaduffy ];
diff --git a/pkgs/applications/networking/sync/lsyncd/default.nix b/pkgs/applications/networking/sync/lsyncd/default.nix
index 832f7c63f275b..9573e1717de90 100644
--- a/pkgs/applications/networking/sync/lsyncd/default.nix
+++ b/pkgs/applications/networking/sync/lsyncd/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/axkibe/lsyncd;
+    homepage = "https://github.com/axkibe/lsyncd";
     description = "A utility that synchronizes local directories with remote targets";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/sync/rclone/default.nix b/pkgs/applications/networking/sync/rclone/default.nix
index d6f37583abe58..2f484467450c0 100644
--- a/pkgs/applications/networking/sync/rclone/default.nix
+++ b/pkgs/applications/networking/sync/rclone/default.nix
@@ -33,7 +33,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Command line program to sync files and directories to and from major cloud storage";
-    homepage = https://rclone.org;
+    homepage = "https://rclone.org";
     license = licenses.mit;
     maintainers = with maintainers; [ danielfullmer ];
     platforms = platforms.all;
diff --git a/pkgs/applications/networking/sync/rsync/base.nix b/pkgs/applications/networking/sync/rsync/base.nix
index fc4bc6c0671e4..a0522dfe82023 100644
--- a/pkgs/applications/networking/sync/rsync/base.nix
+++ b/pkgs/applications/networking/sync/rsync/base.nix
@@ -15,7 +15,7 @@ rec {
 
   meta = with stdenv.lib; {
     description = "Fast incremental file transfer utility";
-    homepage = https://rsync.samba.org/;
+    homepage = "https://rsync.samba.org/";
     license = licenses.gpl3Plus;
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/networking/sync/unison/default.nix b/pkgs/applications/networking/sync/unison/default.nix
index 9c49b22d94433..535757503ca67 100644
--- a/pkgs/applications/networking/sync/unison/default.nix
+++ b/pkgs/applications/networking/sync/unison/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation (rec {
   dontStrip = !ocaml.nativeCompilers;
 
   meta = {
-    homepage = https://www.cis.upenn.edu/~bcpierce/unison/;
+    homepage = "https://www.cis.upenn.edu/~bcpierce/unison/";
     description = "Bidirectional file synchronizer";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/networking/syncplay/default.nix b/pkgs/applications/networking/syncplay/default.nix
index 920a1c97539e0..0613a5c5bcd90 100644
--- a/pkgs/applications/networking/syncplay/default.nix
+++ b/pkgs/applications/networking/syncplay/default.nix
@@ -23,7 +23,7 @@ buildPythonApplication rec {
   '';
 
   meta = with lib; {
-    homepage = https://syncplay.pl/;
+    homepage = "https://syncplay.pl/";
     description = "Free software that synchronises media players";
     license = licenses.asl20;
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/syncthing-gtk/default.nix b/pkgs/applications/networking/syncthing-gtk/default.nix
index 3e2b7cf67f200..cf1e053dd53c1 100644
--- a/pkgs/applications/networking/syncthing-gtk/default.nix
+++ b/pkgs/applications/networking/syncthing-gtk/default.nix
@@ -57,7 +57,7 @@ buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "GTK3 & python based GUI for Syncthing";
-    homepage = https://github.com/syncthing/syncthing-gtk;
+    homepage = "https://github.com/syncthing/syncthing-gtk";
     license = licenses.gpl2;
     maintainers = with maintainers; [ ];
     platforms = syncthing.meta.platforms;
diff --git a/pkgs/applications/networking/syncthing/default.nix b/pkgs/applications/networking/syncthing/default.nix
index c880f7db86696..31cf76be5efc8 100644
--- a/pkgs/applications/networking/syncthing/default.nix
+++ b/pkgs/applications/networking/syncthing/default.nix
@@ -36,7 +36,7 @@ let
       inherit postInstall;
 
       meta = with lib; {
-        homepage = https://www.syncthing.net/;
+        homepage = "https://www.syncthing.net/";
         description = "Open Source Continuous File Synchronization";
         license = licenses.mpl20;
         maintainers = with maintainers; [ pshendry joko peterhoeg andrew-d ];
diff --git a/pkgs/applications/networking/trebleshot/default.nix b/pkgs/applications/networking/trebleshot/default.nix
index 1b049ff2dc7f0..56ebe1873ae61 100644
--- a/pkgs/applications/networking/trebleshot/default.nix
+++ b/pkgs/applications/networking/trebleshot/default.nix
@@ -20,7 +20,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Android file transferring tool for desktop";
-    homepage = https://github.com/genonbeta/TrebleShot-Desktop;
+    homepage = "https://github.com/genonbeta/TrebleShot-Desktop";
     license = licenses.gpl2;
 
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/umurmur/default.nix b/pkgs/applications/networking/umurmur/default.nix
index 1a19c8c96b330..d16c1bb944a2d 100644
--- a/pkgs/applications/networking/umurmur/default.nix
+++ b/pkgs/applications/networking/umurmur/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Minimalistic Murmur (Mumble server)";
     license = licenses.bsd3;
-    homepage = https://github.com/umurmur/umurmur;
+    homepage = "https://github.com/umurmur/umurmur";
     platforms = platforms.all;
   };
 }
diff --git a/pkgs/applications/networking/vnstat/default.nix b/pkgs/applications/networking/vnstat/default.nix
index 44b8a955817da..cd0f65d4d4549 100644
--- a/pkgs/applications/networking/vnstat/default.nix
+++ b/pkgs/applications/networking/vnstat/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
       This means that vnStat won't actually be sniffing any traffic and also
       ensures light use of system resources.
     '';
-    homepage = https://humdi.net/vnstat/;
+    homepage = "https://humdi.net/vnstat/";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/weather/meteo/default.nix b/pkgs/applications/networking/weather/meteo/default.nix
index 64fef08ceefd5..9887e34d7354b 100644
--- a/pkgs/applications/networking/weather/meteo/default.nix
+++ b/pkgs/applications/networking/weather/meteo/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Know the forecast of the next hours & days";
-    homepage = https://gitlab.com/bitseater/meteo;
+    homepage = "https://gitlab.com/bitseater/meteo";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/znc/default.nix b/pkgs/applications/networking/znc/default.nix
index bf36a6f2bbbde..e9c3acdc11d12 100644
--- a/pkgs/applications/networking/znc/default.nix
+++ b/pkgs/applications/networking/znc/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Advanced IRC bouncer";
-    homepage = https://wiki.znc.in/ZNC;
+    homepage = "https://wiki.znc.in/ZNC";
     maintainers = with maintainers; [ schneefux lnl7 ];
     license = licenses.asl20;
     platforms = platforms.unix;
diff --git a/pkgs/applications/networking/znc/modules.nix b/pkgs/applications/networking/znc/modules.nix
index 5e7bdd09b036c..3fd447b8b096b 100644
--- a/pkgs/applications/networking/znc/modules.nix
+++ b/pkgs/applications/networking/znc/modules.nix
@@ -31,7 +31,7 @@ in {
 
     meta = with stdenv.lib; {
       description = "Request backlog for IRC channels.";
-      homepage = https://github.com/fruitiex/znc-backlog/;
+      homepage = "https://github.com/fruitiex/znc-backlog/";
       license = licenses.asl20;
       maintainers = with maintainers; [ infinisil ];
     };
@@ -51,7 +51,7 @@ in {
 
     meta = with stdenv.lib; {
       description = "ZNC module for client specific buffers";
-      homepage = https://github.com/jpnurmi/znc-clientbuffer;
+      homepage = "https://github.com/jpnurmi/znc-clientbuffer";
       license = licenses.asl20;
       maintainers = with maintainers; [ hrdinka ];
     };
@@ -71,7 +71,7 @@ in {
 
     meta = with stdenv.lib; {
       description = "ZNC clientaway module";
-      homepage = https://github.com/kylef/znc-contrib;
+      homepage = "https://github.com/kylef/znc-contrib";
       license = licenses.gpl2;
       maintainers = with maintainers; [ kiwi ];
     };
@@ -92,7 +92,7 @@ in {
 
     meta = {
       description = "ZNC FiSH module";
-      homepage = https://github.com/dctrwatson/znc-fish;
+      homepage = "https://github.com/dctrwatson/znc-fish";
       maintainers = [ stdenv.lib.maintainers.offline ];
     };
   };
@@ -111,7 +111,7 @@ in {
 
     meta = with stdenv.lib; {
       description = "ZNC ignore module";
-      homepage = https://github.com/kylef/znc-contrib;
+      homepage = "https://github.com/kylef/znc-contrib";
       license = licenses.gpl2;
       maintainers = with maintainers; [ kiwi ];
     };
@@ -151,7 +151,7 @@ in {
 
     meta = with stdenv.lib; {
       description = "An advanced playback module for ZNC";
-      homepage = https://github.com/jpnurmi/znc-playback;
+      homepage = "https://github.com/jpnurmi/znc-playback";
       license = licenses.asl20;
       maintainers = with maintainers; [ hrdinka ];
     };
@@ -171,7 +171,7 @@ in {
 
     meta = {
       description = "ZNC privmsg module";
-      homepage = https://github.com/kylef/znc-contrib;
+      homepage = "https://github.com/kylef/znc-contrib";
     };
   };
 
@@ -189,7 +189,7 @@ in {
 
     meta = {
       description = "Push notification service module for ZNC";
-      homepage = https://github.com/jreese/znc-push;
+      homepage = "https://github.com/jreese/znc-push";
       license = stdenv.lib.licenses.mit;
       maintainers = with stdenv.lib.maintainers; [ offline schneefux ];
     };
diff --git a/pkgs/applications/office/abiword/default.nix b/pkgs/applications/office/abiword/default.nix
index 0b36b3266efc9..4aa3f936b539d 100644
--- a/pkgs/applications/office/abiword/default.nix
+++ b/pkgs/applications/office/abiword/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Word processing program, similar to Microsoft Word";
-    homepage = https://www.abisource.com/;
+    homepage = "https://www.abisource.com/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ylwghst sna ];
diff --git a/pkgs/applications/office/agenda/default.nix b/pkgs/applications/office/agenda/default.nix
index 23efbf9c9b540..04bbbbc498c9a 100644
--- a/pkgs/applications/office/agenda/default.nix
+++ b/pkgs/applications/office/agenda/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A simple, fast, no-nonsense to-do (task) list designed for elementary OS";
-    homepage = https://github.com/dahenson/agenda;
+    homepage = "https://github.com/dahenson/agenda";
     maintainers = with maintainers; [ kjuvi ] ++ pantheon.maintainers;
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/office/antiword/default.nix b/pkgs/applications/office/antiword/default.nix
index e6c939b277eab..0154e21b374c2 100644
--- a/pkgs/applications/office/antiword/default.nix
+++ b/pkgs/applications/office/antiword/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   installTargets = [ "global_install" ];
 
   meta = {
-    homepage = http://www.winfield.demon.nl/;
+    homepage = "http://www.winfield.demon.nl/";
     description = "Convert MS Word documents to plain text or PostScript";
     license = stdenv.lib.licenses.gpl2;
 
diff --git a/pkgs/applications/office/atlassian-cli/default.nix b/pkgs/applications/office/atlassian-cli/default.nix
index 88da2442ecf21..cf145de544bd4 100644
--- a/pkgs/applications/office/atlassian-cli/default.nix
+++ b/pkgs/applications/office/atlassian-cli/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
   
   meta = with stdenv.lib; {
     description = "An integrated family of CLI’s for various Atlassian applications";
-    homepage = https://bobswift.atlassian.net/wiki/spaces/ACLI/overview;
+    homepage = "https://bobswift.atlassian.net/wiki/spaces/ACLI/overview";
     license = licenses.unfreeRedistributable;
     maintainers = with maintainers; [ twey ];
     inherit (jre.meta) platforms;
diff --git a/pkgs/applications/office/autokey/default.nix b/pkgs/applications/office/autokey/default.nix
index 31e74ccf23a10..441a9a98e9722 100644
--- a/pkgs/applications/office/autokey/default.nix
+++ b/pkgs/applications/office/autokey/default.nix
@@ -29,7 +29,7 @@ python3Packages.buildPythonApplication rec {
     dbus-python pyinotify xlib pygobject3 ];
 
   meta = {
-    homepage = https://github.com/autokey/autokey;
+    homepage = "https://github.com/autokey/autokey";
     description = "Desktop automation utility for Linux and X11";
     license = with lib.licenses; [ gpl3 ];
     maintainers = with lib.maintainers; [ pneumaticat ];
diff --git a/pkgs/applications/office/beancount/bean-add.nix b/pkgs/applications/office/beancount/bean-add.nix
index aefd696ae4e35..916d13e7a83a4 100644
--- a/pkgs/applications/office/beancount/bean-add.nix
+++ b/pkgs/applications/office/beancount/bean-add.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://github.com/simon-v/bean-add/;
+    homepage = "https://github.com/simon-v/bean-add/";
     description = "beancount transaction entry assistant";
 
     # The (only) source file states:
diff --git a/pkgs/applications/office/bookworm/default.nix b/pkgs/applications/office/bookworm/default.nix
index be6fe172e29f1..f7ec9bf5c6021 100644
--- a/pkgs/applications/office/bookworm/default.nix
+++ b/pkgs/applications/office/bookworm/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
      longDescription = ''
        Read the books you love without having to worry about different format complexities like epub, pdf, mobi, cbr, etc.
      '';
-     homepage = https://babluboy.github.io/bookworm/;
+     homepage = "https://babluboy.github.io/bookworm/";
      license = licenses.gpl3Plus;
      platforms = platforms.linux;
    };
diff --git a/pkgs/applications/office/calligra/default.nix b/pkgs/applications/office/calligra/default.nix
index 4855fbc63c3e4..6915be9b6d64a 100644
--- a/pkgs/applications/office/calligra/default.nix
+++ b/pkgs/applications/office/calligra/default.nix
@@ -60,7 +60,7 @@ mkDerivation rec {
       Sheets for computations, Plan for planning, and Karbon for
       vector graphics.
     '';
-    homepage = https://www.calligra.org/;
+    homepage = "https://www.calligra.org/";
     maintainers = with maintainers; [ phreedom ebzzry zraexy ];
     platforms = platforms.linux;
     license = with licenses; [ gpl2 lgpl2 ];
diff --git a/pkgs/applications/office/cb2bib/default.nix b/pkgs/applications/office/cb2bib/default.nix
index 0043648146f53..f5b8b437249f2 100644
--- a/pkgs/applications/office/cb2bib/default.nix
+++ b/pkgs/applications/office/cb2bib/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Rapidly extract unformatted, or unstandardized bibliographic references from email alerts, journal Web pages and PDF files";
-    homepage = http://www.molspaces.com/d_cb2bib-overview.php;
+    homepage = "http://www.molspaces.com/d_cb2bib-overview.php";
     maintainers = with maintainers; [ edwtjo ];
     license = licenses.gpl3;
   };
diff --git a/pkgs/applications/office/fava/default.nix b/pkgs/applications/office/fava/default.nix
index 2770b6917ce4f..8e1bb0d76d925 100644
--- a/pkgs/applications/office/fava/default.nix
+++ b/pkgs/applications/office/fava/default.nix
@@ -35,7 +35,7 @@ buildPythonApplication rec {
   '';
 
   meta = {
-    homepage = https://beancount.github.io/fava;
+    homepage = "https://beancount.github.io/fava";
     description = "Web interface for beancount";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ matthiasbeyer ];
diff --git a/pkgs/applications/office/gnumeric/default.nix b/pkgs/applications/office/gnumeric/default.nix
index 710a66c25d86b..67618e0e4f991 100644
--- a/pkgs/applications/office/gnumeric/default.nix
+++ b/pkgs/applications/office/gnumeric/default.nix
@@ -35,7 +35,7 @@ in stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "The GNOME Office Spreadsheet";
     license = stdenv.lib.licenses.gpl2Plus;
-    homepage = http://projects.gnome.org/gnumeric/;
+    homepage = "http://projects.gnome.org/gnumeric/";
     platforms = platforms.unix;
     maintainers = [ maintainers.vcunat ];
   };
diff --git a/pkgs/applications/office/homebank/default.nix b/pkgs/applications/office/homebank/default.nix
index 3cda543eda12e..1a056e9be81d2 100644
--- a/pkgs/applications/office/homebank/default.nix
+++ b/pkgs/applications/office/homebank/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Free, easy, personal accounting for everyone";
-    homepage = http://homebank.free.fr/;
+    homepage = "http://homebank.free.fr/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ pSub ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/ib/controller/default.nix b/pkgs/applications/office/ib/controller/default.nix
index 372414c1a76d8..7be7e4467b52f 100644
--- a/pkgs/applications/office/ib/controller/default.nix
+++ b/pkgs/applications/office/ib/controller/default.nix
@@ -154,7 +154,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Automation Controller for the Trader Work Station of Interactive Brokers";
-    homepage = https://github.com/ib-controller/ib-controller;
+    homepage = "https://github.com/ib-controller/ib-controller";
     license = licenses.gpl3;
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/ib/tws/default.nix b/pkgs/applications/office/ib/tws/default.nix
index a88f1af02c655..b8b31bed7c5e0 100644
--- a/pkgs/applications/office/ib/tws/default.nix
+++ b/pkgs/applications/office/ib/tws/default.nix
@@ -88,7 +88,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Trader Work Station of Interactive Brokers";
-    homepage = https://www.interactivebrokers.com;
+    homepage = "https://www.interactivebrokers.com";
     license = licenses.unfree;
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/impressive/default.nix b/pkgs/applications/office/impressive/default.nix
index a8c318d690a92..ed8cc1dd50a73 100644
--- a/pkgs/applications/office/impressive/default.nix
+++ b/pkgs/applications/office/impressive/default.nix
@@ -59,7 +59,7 @@ in stdenv.mkDerivation {
         to make a slideshow with your favorite photos.
       '';
 
-      homepage = http://impressive.sourceforge.net/;
+      homepage = "http://impressive.sourceforge.net/";
 
       license = stdenv.lib.licenses.gpl2;
 
diff --git a/pkgs/applications/office/jabref/default.nix b/pkgs/applications/office/jabref/default.nix
index d0a7757e49d2f..01ba190cf31f1 100644
--- a/pkgs/applications/office/jabref/default.nix
+++ b/pkgs/applications/office/jabref/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open source bibliography reference manager";
-    homepage = https://www.jabref.org;
+    homepage = "https://www.jabref.org";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = [ maintainers.gebner ];
diff --git a/pkgs/applications/office/jameica/default.nix b/pkgs/applications/office/jameica/default.nix
index 7b4feed1733ac..be630920268ab 100644
--- a/pkgs/applications/office/jameica/default.nix
+++ b/pkgs/applications/office/jameica/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.willuhn.de/products/jameica/;
+    homepage = "https://www.willuhn.de/products/jameica/";
     description = "Free Runtime Environment for Java Applications";
     longDescription = ''
       Runtime Environment for plugins like Hibiscus (HBCI Online Banking),
diff --git a/pkgs/applications/office/keepnote/default.nix b/pkgs/applications/office/keepnote/default.nix
index 2e0b3f3fed7dc..cf1b5125adf99 100644
--- a/pkgs/applications/office/keepnote/default.nix
+++ b/pkgs/applications/office/keepnote/default.nix
@@ -16,7 +16,7 @@ python2Packages.buildPythonApplication {
 
   meta = {
     description = "Note taking application";
-    homepage = http://keepnote.org;
+    homepage = "http://keepnote.org";
     license = stdenv.lib.licenses.gpl2Plus;
   };
 }
diff --git a/pkgs/applications/office/kexi/default.nix b/pkgs/applications/office/kexi/default.nix
index 8db7068f7cfa6..4900dafb08e58 100644
--- a/pkgs/applications/office/kexi/default.nix
+++ b/pkgs/applications/office/kexi/default.nix
@@ -49,7 +49,7 @@ mkDerivation rec {
       All database objects - tables, queries and forms - are stored in the database,
       making it easy to share data and design.
     '';
-    homepage = http://kexi-project.org/;
+    homepage = "http://kexi-project.org/";
     maintainers = with maintainers; [ zraexy ];
     platforms = platforms.linux;
     license = with licenses; [ gpl2 lgpl2 ];
diff --git a/pkgs/applications/office/kmymoney/default.nix b/pkgs/applications/office/kmymoney/default.nix
index 275cd826a69fd..6137a4dc1ad81 100644
--- a/pkgs/applications/office/kmymoney/default.nix
+++ b/pkgs/applications/office/kmymoney/default.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Personal finance manager for KDE";
-    homepage = https://kmymoney.org/;
+    homepage = "https://kmymoney.org/";
     platforms = lib.platforms.linux;
     license = lib.licenses.gpl2Plus;
   };
diff --git a/pkgs/applications/office/ledger-autosync/default.nix b/pkgs/applications/office/ledger-autosync/default.nix
index 62ac6a803824c..00c402558613c 100644
--- a/pkgs/applications/office/ledger-autosync/default.nix
+++ b/pkgs/applications/office/ledger-autosync/default.nix
@@ -43,7 +43,7 @@ python3Packages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/egh/ledger-autosync;
+    homepage = "https://github.com/egh/ledger-autosync";
     description = "OFX/CSV autosync for ledger and hledger";
     license = licenses.gpl3;
     maintainers = with maintainers; [ eamsden ];
diff --git a/pkgs/applications/office/ledger-web/default.nix b/pkgs/applications/office/ledger-web/default.nix
index 0a8f68bc09617..ce8b401cb6b92 100644
--- a/pkgs/applications/office/ledger-web/default.nix
+++ b/pkgs/applications/office/ledger-web/default.nix
@@ -15,7 +15,7 @@ bundlerApp {
 
   meta = with lib; {
     description = "A web frontend to the Ledger CLI tool";
-    homepage = https://github.com/peterkeen/ledger-web;
+    homepage = "https://github.com/peterkeen/ledger-web";
     license = licenses.mit;
     maintainers = with maintainers; [ peterhoeg manveru nicknovitski ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/ledger/default.nix b/pkgs/applications/office/ledger/default.nix
index 99e09a8f36f2f..05fb059240674 100644
--- a/pkgs/applications/office/ledger/default.nix
+++ b/pkgs/applications/office/ledger/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://ledger-cli.org/;
+    homepage = "https://ledger-cli.org/";
     description = "A double-entry accounting system with a command-line reporting interface";
     license = licenses.bsd3;
 
diff --git a/pkgs/applications/office/libreoffice/default.nix b/pkgs/applications/office/libreoffice/default.nix
index 9517a4404def0..7625ba3bea82c 100644
--- a/pkgs/applications/office/libreoffice/default.nix
+++ b/pkgs/applications/office/libreoffice/default.nix
@@ -370,7 +370,7 @@ in (stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Comprehensive, professional-quality productivity suite, a variant of openoffice.org";
-    homepage = https://libreoffice.org/;
+    homepage = "https://libreoffice.org/";
     license = licenses.lgpl3;
     maintainers = with maintainers; [ raskin ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/marp/default.nix b/pkgs/applications/office/marp/default.nix
index 7c054ba520479..5b05a9f164b74 100644
--- a/pkgs/applications/office/marp/default.nix
+++ b/pkgs/applications/office/marp/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Markdown presentation writer, powered by Electron";
-    homepage = https://yhatt.github.io/marp/;
+    homepage = "https://yhatt.github.io/marp/";
     license = licenses.mit;
     maintainers = [ maintainers.puffnfresh ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/office/minetime/default.nix b/pkgs/applications/office/minetime/default.nix
index 42802409e59d4..8f90973e5f8e8 100644
--- a/pkgs/applications/office/minetime/default.nix
+++ b/pkgs/applications/office/minetime/default.nix
@@ -41,7 +41,7 @@ appimageTools.wrapAppImage rec {
 
   meta = with lib; {
     description = "Modern, intuitive and smart calendar application";
-    homepage = https://minetime.ai;
+    homepage = "https://minetime.ai";
     license = licenses.unfree;
     # Should be cross-platform, but for now we just grab the appimage
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/office/mmex/default.nix b/pkgs/applications/office/mmex/default.nix
index ed33d121a05fa..6d430a286bd3c 100644
--- a/pkgs/applications/office/mmex/default.nix
+++ b/pkgs/applications/office/mmex/default.nix
@@ -27,7 +27,7 @@ in
 
     meta = {
       description = "Easy-to-use personal finance software";
-      homepage = https://www.moneymanagerex.org/;
+      homepage = "https://www.moneymanagerex.org/";
       license = stdenv.lib.licenses.gpl2Plus;
       maintainers = with stdenv.lib.maintainers; [viric];
       platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/office/moneyplex/default.nix b/pkgs/applications/office/moneyplex/default.nix
index 103288c03c621..85d9715bf396c 100644
--- a/pkgs/applications/office/moneyplex/default.nix
+++ b/pkgs/applications/office/moneyplex/default.nix
@@ -116,7 +116,7 @@ stdenv.mkDerivation {
     maintainers = with maintainers; [ tstrobel ];
     platforms = platforms.linux;
     license = licenses.unfree;
-    downloadPage = http://matrica.de/download/download.html;
+    downloadPage = "http://matrica.de/download/download.html";
   };
 
 }
diff --git a/pkgs/applications/office/mytetra/default.nix b/pkgs/applications/office/mytetra/default.nix
index 050222451cf64..45d9e29ebe9a8 100644
--- a/pkgs/applications/office/mytetra/default.nix
+++ b/pkgs/applications/office/mytetra/default.nix
@@ -31,7 +31,7 @@ in mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Smart manager for information collecting";
-    homepage = https://webhamster.ru/site/page/index/articles/projectcode/138;
+    homepage = "https://webhamster.ru/site/page/index/articles/projectcode/138";
     license = licenses.gpl3;
     maintainers = [ maintainers.gnidorah ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/osmo/default.nix b/pkgs/applications/office/osmo/default.nix
index b1311428c61d0..c3a7a5da4550f 100644
--- a/pkgs/applications/office/osmo/default.nix
+++ b/pkgs/applications/office/osmo/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A handy personal organizer";
-    homepage = http://clayo.org/osmo/;
+    homepage = "http://clayo.org/osmo/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/office/paperless/default.nix b/pkgs/applications/office/paperless/default.nix
index 1383986cf2ed7..c549b107c541f 100644
--- a/pkgs/applications/office/paperless/default.nix
+++ b/pkgs/applications/office/paperless/default.nix
@@ -99,7 +99,7 @@ let
 
     meta = with lib; {
       description = "Scan, index, and archive all of your paper documents";
-      homepage = https://github.com/the-paperless-project/paperless;
+      homepage = "https://github.com/the-paperless-project/paperless";
       license = licenses.gpl3;
       maintainers = [ maintainers.earvstedt ];
     };
diff --git a/pkgs/applications/office/paperless/python-modules/django-crispy-forms.nix b/pkgs/applications/office/paperless/python-modules/django-crispy-forms.nix
index 465da38624717..c470a56b8a11f 100644
--- a/pkgs/applications/office/paperless/python-modules/django-crispy-forms.nix
+++ b/pkgs/applications/office/paperless/python-modules/django-crispy-forms.nix
@@ -29,7 +29,7 @@ buildPythonPackage {
 
   meta = with lib; {
     description = "The best way to have DRY Django forms";
-    homepage = https://github.com/maraujop/django-crispy-forms;
+    homepage = "https://github.com/maraujop/django-crispy-forms";
     license = licenses.mit;
     maintainers = with maintainers; [ earvstedt ];
   };
diff --git a/pkgs/applications/office/paperless/python-modules/django-filter.nix b/pkgs/applications/office/paperless/python-modules/django-filter.nix
index ffe94d10d5c33..d7f20bd9d37d9 100644
--- a/pkgs/applications/office/paperless/python-modules/django-filter.nix
+++ b/pkgs/applications/office/paperless/python-modules/django-filter.nix
@@ -19,7 +19,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A reusable Django application for allowing users to filter querysets dynamically.";
-    homepage = https://github.com/carltongibson/django-filter;
+    homepage = "https://github.com/carltongibson/django-filter";
     license = licenses.bsd3;
     maintainers = with maintainers; [ earvstedt ];
   };
diff --git a/pkgs/applications/office/paperwork/backend.nix b/pkgs/applications/office/paperwork/backend.nix
index c28a4bc916dc5..af0d4c4305903 100644
--- a/pkgs/applications/office/paperwork/backend.nix
+++ b/pkgs/applications/office/paperwork/backend.nix
@@ -41,7 +41,7 @@ buildPythonPackage rec {
 
   meta = {
     description = "Backend part of Paperwork (Python API, no UI)";
-    homepage = https://openpaper.work/;
+    homepage = "https://openpaper.work/";
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ aszlig symphorien ];
   };
diff --git a/pkgs/applications/office/paperwork/default.nix b/pkgs/applications/office/paperwork/default.nix
index c3930115365c9..102c3cd2564c5 100644
--- a/pkgs/applications/office/paperwork/default.nix
+++ b/pkgs/applications/office/paperwork/default.nix
@@ -94,7 +94,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = {
     description = "A personal document manager for scanned documents";
-    homepage = https://openpaper.work/;
+    homepage = "https://openpaper.work/";
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ aszlig symphorien ];
     platforms = lib.platforms.linux;
diff --git a/pkgs/applications/office/pinpoint/default.nix b/pkgs/applications/office/pinpoint/default.nix
index 14756c3557f4d..ce175d8517f51 100644
--- a/pkgs/applications/office/pinpoint/default.nix
+++ b/pkgs/applications/office/pinpoint/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
                   cairo clutter-gtk ];
 
   meta = with stdenv.lib; {
-    homepage = https://wiki.gnome.org/action/show/Apps/Pinpoint;
+    homepage = "https://wiki.gnome.org/action/show/Apps/Pinpoint";
     description = "A tool for making hackers do excellent presentations";
     license = licenses.lgpl21;
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/planner/default.nix b/pkgs/applications/office/planner/default.nix
index 6189132d0f949..f33946d6b5a2d 100644
--- a/pkgs/applications/office/planner/default.nix
+++ b/pkgs/applications/office/planner/default.nix
@@ -57,7 +57,7 @@ in stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://wiki.gnome.org/Apps/Planner;
+    homepage = "https://wiki.gnome.org/Apps/Planner";
     description = "Project management application for GNOME";
     longDescription = ''
       Planner is the GNOME project management tool.
diff --git a/pkgs/applications/office/qnotero/default.nix b/pkgs/applications/office/qnotero/default.nix
index 769f58785ee57..7821b041064a0 100644
--- a/pkgs/applications/office/qnotero/default.nix
+++ b/pkgs/applications/office/qnotero/default.nix
@@ -28,7 +28,7 @@ python3Packages.buildPythonPackage rec {
 
   meta = {
     description = "Quick access to Zotero references";
-    homepage = http://www.cogsci.nl/software/qnotero;
+    homepage = "http://www.cogsci.nl/software/qnotero";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/office/qownnotes/default.nix b/pkgs/applications/office/qownnotes/default.nix
index fa2c67709fb9a..99b021429a658 100644
--- a/pkgs/applications/office/qownnotes/default.nix
+++ b/pkgs/applications/office/qownnotes/default.nix
@@ -19,7 +19,7 @@ mkDerivation rec {
   meta = with lib; {
     description = "Plain-text file notepad and todo-list manager with markdown support and ownCloud / Nextcloud integration";
 
-    homepage = https://www.qownnotes.org/;
+    homepage = "https://www.qownnotes.org/";
     platforms = platforms.all;
     license = licenses.gpl2;
     maintainers = with maintainers; [ dtzWill ];
diff --git a/pkgs/applications/office/scribus/default.nix b/pkgs/applications/office/scribus/default.nix
index d6b73b07f0e54..779a5cb0fea38 100644
--- a/pkgs/applications/office/scribus/default.nix
+++ b/pkgs/applications/office/scribus/default.nix
@@ -48,7 +48,7 @@ in stdenv.mkDerivation rec {
     maintainers = [ stdenv.lib.maintainers.marcweber ];
     platforms = stdenv.lib.platforms.linux;
     description = "Desktop Publishing (DTP) and Layout program for Linux";
-    homepage = https://www.scribus.net;
+    homepage = "https://www.scribus.net";
     license = stdenv.lib.licenses.gpl2;
   };
 }
diff --git a/pkgs/applications/office/skanlite/default.nix b/pkgs/applications/office/skanlite/default.nix
index d4c1df75709b6..3c97c145c74b5 100644
--- a/pkgs/applications/office/skanlite/default.nix
+++ b/pkgs/applications/office/skanlite/default.nix
@@ -23,7 +23,7 @@ in mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "KDE simple image scanning application";
-    homepage    = http://www.kde.org/applications/graphics/skanlite/;
+    homepage    = "http://www.kde.org/applications/graphics/skanlite/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pshendry ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/office/skrooge/default.nix b/pkgs/applications/office/skrooge/default.nix
index 1db5ce16fe53e..f3e6f62299699 100644
--- a/pkgs/applications/office/skrooge/default.nix
+++ b/pkgs/applications/office/skrooge/default.nix
@@ -36,6 +36,6 @@ mkDerivation rec {
     description = "A personal finances manager, powered by KDE";
     license = with licenses; [ gpl3 ];
     maintainers = with maintainers; [ joko ];
-    homepage = https://skrooge.org/;
+    homepage = "https://skrooge.org/";
   };
 }
diff --git a/pkgs/applications/office/spice-up/default.nix b/pkgs/applications/office/spice-up/default.nix
index 07a3b26a1a854..8afd459c42be8 100644
--- a/pkgs/applications/office/spice-up/default.nix
+++ b/pkgs/applications/office/spice-up/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Create simple and beautiful presentations";
-    homepage = https://github.com/Philip-Scott/Spice-up;
+    homepage = "https://github.com/Philip-Scott/Spice-up";
     maintainers = with maintainers; [ samdroid-apps kjuvi ] ++ pantheon.maintainers;
     platforms = platforms.linux;
     # The COPYING file has GPLv3; some files have GPLv2+ and some have GPLv3+
diff --git a/pkgs/applications/office/tagainijisho/default.nix b/pkgs/applications/office/tagainijisho/default.nix
index 24542041cc874..d826b9f54f6a1 100644
--- a/pkgs/applications/office/tagainijisho/default.nix
+++ b/pkgs/applications/office/tagainijisho/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "tagainijisho-1.0.3";
   src = fetchurl {
-    url = https://github.com/Gnurou/tagainijisho/releases/download/1.0.3/tagainijisho-1.0.3.tar.gz;
+    url = "https://github.com/Gnurou/tagainijisho/releases/download/1.0.3/tagainijisho-1.0.3.tar.gz";
     sha256 = "0kmg1940yiqfm4vpifyj680283ids4nsij9s750nrshwxiwwbqvg";
   };
 
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A free, open-source Japanese dictionary and kanji lookup tool";
-    homepage = https://www.tagaini.net/;
+    homepage = "https://www.tagaini.net/";
     license = with licenses; [
       /* program */ gpl3Plus
       /* data */ cc-by-sa-30
diff --git a/pkgs/applications/office/timetrap/default.nix b/pkgs/applications/office/timetrap/default.nix
index 6d094ecb5dccd..579c9e115be8d 100644
--- a/pkgs/applications/office/timetrap/default.nix
+++ b/pkgs/applications/office/timetrap/default.nix
@@ -9,7 +9,7 @@ bundlerApp {
 
   meta = with lib; {
     description = "A simple command line time tracker written in ruby";
-    homepage    = https://github.com/samg/timetrap;
+    homepage    = "https://github.com/samg/timetrap";
     license     = licenses.mit;
     maintainers = with maintainers; [ jerith666 manveru nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/office/todo.txt-cli/default.nix b/pkgs/applications/office/todo.txt-cli/default.nix
index edb2c778a0a55..d711440fc340e 100644
--- a/pkgs/applications/office/todo.txt-cli/default.nix
+++ b/pkgs/applications/office/todo.txt-cli/default.nix
@@ -21,7 +21,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "Simple plaintext todo list manager";
-    homepage = http://todotxt.com;
+    homepage = "http://todotxt.com";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/office/todoman/default.nix b/pkgs/applications/office/todoman/default.nix
index 9aeddf1a021f2..e18a11a7448bd 100644
--- a/pkgs/applications/office/todoman/default.nix
+++ b/pkgs/applications/office/todoman/default.nix
@@ -42,7 +42,7 @@ buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pimutils/todoman;
+    homepage = "https://github.com/pimutils/todoman";
     description = "Standards-based task manager based on iCalendar";
     longDescription = ''
       Todoman is a simple, standards-based, cli todo (aka: task) manager. Todos
diff --git a/pkgs/applications/office/treesheets/default.nix b/pkgs/applications/office/treesheets/default.nix
index 000fa7ff10150..d316d42870728 100644
--- a/pkgs/applications/office/treesheets/default.nix
+++ b/pkgs/applications/office/treesheets/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
       planning, requirements gathering, presentation of information, etc.
     '';
 
-    homepage    = http://strlen.com/treesheets/;
+    homepage    = "http://strlen.com/treesheets/";
     maintainers = with maintainers; [ obadz avery ];
     platforms   = platforms.linux;
     license     = licenses.zlib;
diff --git a/pkgs/applications/office/trilium/default.nix b/pkgs/applications/office/trilium/default.nix
index 3794a676d4c42..18c512874db4c 100644
--- a/pkgs/applications/office/trilium/default.nix
+++ b/pkgs/applications/office/trilium/default.nix
@@ -13,7 +13,7 @@ let
 
   meta = with stdenv.lib; {
     inherit description;
-    homepage = https://github.com/zadam/trilium;
+    homepage = "https://github.com/zadam/trilium";
     license = licenses.agpl3;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ emmanuelrosa dtzWill kampka ];
diff --git a/pkgs/applications/office/tryton/default.nix b/pkgs/applications/office/tryton/default.nix
index b9f1465af1790..d0c5eb4e7b2ed 100644
--- a/pkgs/applications/office/tryton/default.nix
+++ b/pkgs/applications/office/tryton/default.nix
@@ -70,7 +70,7 @@ python3Packages.buildPythonApplication rec {
       It is the core base of a complete business solution providing
       modularity, scalability and security.
     '';
-    homepage = http://www.tryton.org/;
+    homepage = "http://www.tryton.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ johbo udono ];
   };
diff --git a/pkgs/applications/office/trytond/default.nix b/pkgs/applications/office/trytond/default.nix
index dc63acd6db641..c45562a0c8dda 100644
--- a/pkgs/applications/office/trytond/default.nix
+++ b/pkgs/applications/office/trytond/default.nix
@@ -45,7 +45,7 @@ python2Packages.buildPythonApplication rec {
       It is the core base of a complete business solution providing
       modularity, scalability and security.
     '';
-    homepage = http://www.tryton.org/;
+    homepage = "http://www.tryton.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ udono johbo ];
   };
diff --git a/pkgs/applications/office/tudu/default.nix b/pkgs/applications/office/tudu/default.nix
index a4734f4546055..cb3b2111372ba 100644
--- a/pkgs/applications/office/tudu/default.nix
+++ b/pkgs/applications/office/tudu/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "ncurses-based hierarchical todo list manager with vim-like keybindings";
-    homepage = https://code.meskio.net/tudu/;
+    homepage = "https://code.meskio.net/tudu/";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/office/watson/default.nix b/pkgs/applications/office/watson/default.nix
index 7d79d79072a96..160e821008368 100644
--- a/pkgs/applications/office/watson/default.nix
+++ b/pkgs/applications/office/watson/default.nix
@@ -20,7 +20,7 @@ buildPythonApplication rec {
   propagatedBuildInputs = [ requests click arrow ];
 
   meta = with stdenv.lib; {
-    homepage = https://tailordev.github.io/Watson/;
+    homepage = "https://tailordev.github.io/Watson/";
     description = "A wonderful CLI to track your time!";
     license = licenses.mit;
     maintainers = with maintainers; [ mguentner nathyong ] ;
diff --git a/pkgs/applications/office/wordgrinder/default.nix b/pkgs/applications/office/wordgrinder/default.nix
index 199f17afda799..c2ccbabe2f161 100644
--- a/pkgs/applications/office/wordgrinder/default.nix
+++ b/pkgs/applications/office/wordgrinder/default.nix
@@ -51,7 +51,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Text-based word processor";
-    homepage = https://cowlark.com/wordgrinder;
+    homepage = "https://cowlark.com/wordgrinder";
     license = licenses.mit;
     maintainers = with maintainers; [ matthiasbeyer ];
     platforms = with stdenv.lib.platforms; linux ++ darwin;
diff --git a/pkgs/applications/office/wpsoffice/default.nix b/pkgs/applications/office/wpsoffice/default.nix
index 7032632da884c..68ef8f61d66e9 100644
--- a/pkgs/applications/office/wpsoffice/default.nix
+++ b/pkgs/applications/office/wpsoffice/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec{
 
   meta = {
     description = "Office program originally named Kingsoft Office";
-    homepage = http://wps-community.org/;
+    homepage = "http://wps-community.org/";
     platforms = [ "i686-linux" "x86_64-linux" ];
     hydraPlatforms = [];
     license = stdenv.lib.licenses.unfreeRedistributable;
@@ -91,4 +91,4 @@ stdenv.mkDerivation rec{
         --replace /opt/kingsoft/wps-office $prefix
     done
   '';
-}
\ No newline at end of file
+}
diff --git a/pkgs/applications/office/zanshin/default.nix b/pkgs/applications/office/zanshin/default.nix
index b4adc947c4d19..18e7629749646 100644
--- a/pkgs/applications/office/zanshin/default.nix
+++ b/pkgs/applications/office/zanshin/default.nix
@@ -28,7 +28,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "A powerful yet simple application to manage your day to day actions, getting your mind like water";
-    homepage = https://zanshin.kde.org/;
+    homepage = "https://zanshin.kde.org/";
     maintainers = with maintainers; [ zraexy ];
     platforms = platforms.linux;
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/office/zim/default.nix b/pkgs/applications/office/zim/default.nix
index 075552b1ec4f6..ba6351da1ddd3 100644
--- a/pkgs/applications/office/zim/default.nix
+++ b/pkgs/applications/office/zim/default.nix
@@ -34,7 +34,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A desktop wiki";
-    homepage = http://zim-wiki.org;
+    homepage = "http://zim-wiki.org";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ pSub ];
     broken = stdenv.isDarwin; # https://github.com/NixOS/nixpkgs/pull/52658#issuecomment-449565790
diff --git a/pkgs/applications/radio/airspy/default.nix b/pkgs/applications/radio/airspy/default.nix
index 09b8499b27ab2..67a59b68cd5b8 100644
--- a/pkgs/applications/radio/airspy/default.nix
+++ b/pkgs/applications/radio/airspy/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
     lib.optionals stdenv.isLinux [ "-DINSTALL_UDEV_RULES=ON" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/airspy/airspyone_host;
+    homepage = "https://github.com/airspy/airspyone_host";
     description = "Host tools and driver library for the AirSpy SDR";
     license = licenses.bsd3;
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/radio/aldo/default.nix b/pkgs/applications/radio/aldo/default.nix
index fc38f6be4ccaf..df52531a518d7 100644
--- a/pkgs/applications/radio/aldo/default.nix
+++ b/pkgs/applications/radio/aldo/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Morse code training program";
-    homepage = http://aldo.nongnu.org/;
+    homepage = "http://aldo.nongnu.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ etu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/radio/chirp/default.nix b/pkgs/applications/radio/chirp/default.nix
index f88687b076e03..41cad47f24623 100644
--- a/pkgs/applications/radio/chirp/default.nix
+++ b/pkgs/applications/radio/chirp/default.nix
@@ -17,7 +17,7 @@ python2.pkgs.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A free, open-source tool for programming your amateur radio";
-    homepage = https://chirp.danplanet.com/;
+    homepage = "https://chirp.danplanet.com/";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.the-kenny ];
diff --git a/pkgs/applications/radio/cubicsdr/default.nix b/pkgs/applications/radio/cubicsdr/default.nix
index 14badd6c55c57..ef4d68af54c6a 100644
--- a/pkgs/applications/radio/cubicsdr/default.nix
+++ b/pkgs/applications/radio/cubicsdr/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional enableDigitalLab "-DENABLE_DIGITAL_LAB=ON";
 
   meta = with stdenv.lib; {
-    homepage = https://cubicsdr.com;
+    homepage = "https://cubicsdr.com";
     description = "Software Defined Radio application";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ lasandell ];
diff --git a/pkgs/applications/radio/dablin/default.nix b/pkgs/applications/radio/dablin/default.nix
index fba63362ab6e6..d365596b9c300 100644
--- a/pkgs/applications/radio/dablin/default.nix
+++ b/pkgs/applications/radio/dablin/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Play DAB/DAB+ from ETI-NI aligned stream";
-    homepage = https://github.com/Opendigitalradio/dablin;
+    homepage = "https://github.com/Opendigitalradio/dablin";
     license = with licenses; [ gpl3 lgpl21 ];
     platforms = platforms.linux;
     maintainers = [ maintainers.markuskowa ];
diff --git a/pkgs/applications/radio/dmrconfig/default.nix b/pkgs/applications/radio/dmrconfig/default.nix
index 68b4cfe8af464..47b72669f8fda 100644
--- a/pkgs/applications/radio/dmrconfig/default.nix
+++ b/pkgs/applications/radio/dmrconfig/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       DMRconfig is a utility for programming digital radios via USB programming cable.
     '';
-    homepage = https://github.com/sergev/dmrconfig;
+    homepage = "https://github.com/sergev/dmrconfig";
     license = licenses.asl20;
     maintainers = [ maintainers.etu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/radio/ebook2cw/default.nix b/pkgs/applications/radio/ebook2cw/default.nix
index 915d0ba84db37..d273594f4c90c 100644
--- a/pkgs/applications/radio/ebook2cw/default.nix
+++ b/pkgs/applications/radio/ebook2cw/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Convert ebooks to Morse MP3s/OGGs";
-    homepage = http://fkurz.net/ham/ebook2cw.html;
+    homepage = "http://fkurz.net/ham/ebook2cw.html";
     license = licenses.gpl2;
     platforms = platforms.all;
     maintainers = with maintainers; [ earldouglas ];
diff --git a/pkgs/applications/radio/fllog/default.nix b/pkgs/applications/radio/fllog/default.nix
index 49149a2d82a6b..649caae09021a 100644
--- a/pkgs/applications/radio/fllog/default.nix
+++ b/pkgs/applications/radio/fllog/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Digital modem log program";
-    homepage = https://sourceforge.net/projects/fldigi/;
+    homepage = "https://sourceforge.net/projects/fldigi/";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [ dysinger ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/radio/flmsg/default.nix b/pkgs/applications/radio/flmsg/default.nix
index 39fbb0de06c0e..e437dffa48563 100644
--- a/pkgs/applications/radio/flmsg/default.nix
+++ b/pkgs/applications/radio/flmsg/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Digital modem message program";
-    homepage = https://sourceforge.net/projects/fldigi/;
+    homepage = "https://sourceforge.net/projects/fldigi/";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [ dysinger ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/radio/flwrap/default.nix b/pkgs/applications/radio/flwrap/default.nix
index 6bdab0a925d30..889c212de4e95 100644
--- a/pkgs/applications/radio/flwrap/default.nix
+++ b/pkgs/applications/radio/flwrap/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Digital modem file transfer program";
-    homepage = https://sourceforge.net/projects/fldigi/;
+    homepage = "https://sourceforge.net/projects/fldigi/";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [ dysinger ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/radio/gnuradio/ais.nix b/pkgs/applications/radio/gnuradio/ais.nix
index c26d3e77c70d8..30c2638a72f8f 100644
--- a/pkgs/applications/radio/gnuradio/ais.nix
+++ b/pkgs/applications/radio/gnuradio/ais.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Gnuradio block for ais";
-    homepage = https://github.com/bistromath/gr-ais;
+    homepage = "https://github.com/bistromath/gr-ais";
     license = licenses.gpl3Plus;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/radio/gnuradio/default.nix b/pkgs/applications/radio/gnuradio/default.nix
index f5c89ae51cef8..6d788f77bc323 100644
--- a/pkgs/applications/radio/gnuradio/default.nix
+++ b/pkgs/applications/radio/gnuradio/default.nix
@@ -116,7 +116,7 @@ stdenv.mkDerivation rec {
       environments to support both wireless communications research and
       real-world radio systems.
     '';
-    homepage = https://www.gnuradio.org;
+    homepage = "https://www.gnuradio.org";
     license = licenses.gpl3;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ bjornfor fpletz ];
diff --git a/pkgs/applications/radio/gnuradio/gsm.nix b/pkgs/applications/radio/gnuradio/gsm.nix
index 27cdfc74aab31..e0b8d7dd44f7e 100644
--- a/pkgs/applications/radio/gnuradio/gsm.nix
+++ b/pkgs/applications/radio/gnuradio/gsm.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Gnuradio block for gsm";
-    homepage = https://github.com/ptrkrysik/gr-gsm;
+    homepage = "https://github.com/ptrkrysik/gr-gsm";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/radio/gnuradio/limesdr.nix b/pkgs/applications/radio/gnuradio/limesdr.nix
index ec1b802c659bd..490caaaa7beab 100644
--- a/pkgs/applications/radio/gnuradio/limesdr.nix
+++ b/pkgs/applications/radio/gnuradio/limesdr.nix
@@ -32,7 +32,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Gnuradio source and sink blocks for LimeSDR";
-    homepage = https://wiki.myriadrf.org/Gr-limesdr_Plugin_for_GNURadio;
+    homepage = "https://wiki.myriadrf.org/Gr-limesdr_Plugin_for_GNURadio";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = [ maintainers.markuskowa ];
diff --git a/pkgs/applications/radio/gnuradio/nacl.nix b/pkgs/applications/radio/gnuradio/nacl.nix
index 3026c81e8eff7..e3d851e2e14a9 100644
--- a/pkgs/applications/radio/gnuradio/nacl.nix
+++ b/pkgs/applications/radio/gnuradio/nacl.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Gnuradio block for encryption";
-    homepage = https://github.com/stwunsch/gr-nacl;
+    homepage = "https://github.com/stwunsch/gr-nacl";
     license = licenses.gpl3Plus;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/radio/gnuradio/osmosdr.nix b/pkgs/applications/radio/gnuradio/osmosdr.nix
index 017e2e1632ce0..1078cf4df6844 100644
--- a/pkgs/applications/radio/gnuradio/osmosdr.nix
+++ b/pkgs/applications/radio/gnuradio/osmosdr.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Gnuradio block for OsmoSDR and rtl-sdr";
-    homepage = https://sdr.osmocom.org/trac/wiki/GrOsmoSDR;
+    homepage = "https://sdr.osmocom.org/trac/wiki/GrOsmoSDR";
     license = licenses.gpl3Plus;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ bjornfor the-kenny ];
diff --git a/pkgs/applications/radio/gnuradio/rds.nix b/pkgs/applications/radio/gnuradio/rds.nix
index e4a55fe50987c..1f8ed211ef29b 100644
--- a/pkgs/applications/radio/gnuradio/rds.nix
+++ b/pkgs/applications/radio/gnuradio/rds.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Gnuradio block for radio data system";
-    homepage = https://github.com/bastibl/gr-rds;
+    homepage = "https://github.com/bastibl/gr-rds";
     license = licenses.gpl2Plus;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ mog ];
diff --git a/pkgs/applications/radio/hackrf/default.nix b/pkgs/applications/radio/hackrf/default.nix
index ea05d08e8ce2a..9569dd89797c3 100644
--- a/pkgs/applications/radio/hackrf/default.nix
+++ b/pkgs/applications/radio/hackrf/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An open source SDR platform";
-    homepage = http://greatscottgadgets.com/hackrf/;
+    homepage = "http://greatscottgadgets.com/hackrf/";
     license = licenses.gpl2;
     platforms = platforms.all;
     maintainers = with maintainers; [ sjmackenzie the-kenny ];
diff --git a/pkgs/applications/radio/kalibrate-hackrf/default.nix b/pkgs/applications/radio/kalibrate-hackrf/default.nix
index 3964a8c373703..273d2d8c8e37c 100644
--- a/pkgs/applications/radio/kalibrate-hackrf/default.nix
+++ b/pkgs/applications/radio/kalibrate-hackrf/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
 
       This package is for hackrf devices.
     '';
-    homepage = https://github.com/scateu/kalibrate-hackrf;
+    homepage = "https://github.com/scateu/kalibrate-hackrf";
     license = licenses.bsd2;
     platforms = platforms.linux;
     maintainers = [ maintainers.mog ];
diff --git a/pkgs/applications/radio/kalibrate-rtl/default.nix b/pkgs/applications/radio/kalibrate-rtl/default.nix
index 879cd6e3aac94..38913e827d09b 100644
--- a/pkgs/applications/radio/kalibrate-rtl/default.nix
+++ b/pkgs/applications/radio/kalibrate-rtl/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
       This package is for RTL-SDR devices.
     '';
-    homepage = https://github.com/steve-m/kalibrate-rtl;
+    homepage = "https://github.com/steve-m/kalibrate-rtl";
     license = licenses.bsd2;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/radio/limesuite/default.nix b/pkgs/applications/radio/limesuite/default.nix
index aae062a87c7e8..ef36eac28e423 100644
--- a/pkgs/applications/radio/limesuite/default.nix
+++ b/pkgs/applications/radio/limesuite/default.nix
@@ -43,7 +43,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Driver and GUI for LMS7002M-based SDR platforms";
-    homepage = https://github.com/myriadrf/LimeSuite;
+    homepage = "https://github.com/myriadrf/LimeSuite";
     license = licenses.asl20;
     maintainers = with maintainers; [ markuskowa ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/radio/minimodem/default.nix b/pkgs/applications/radio/minimodem/default.nix
index 55cd14cf70da9..e94561e46dc80 100644
--- a/pkgs/applications/radio/minimodem/default.nix
+++ b/pkgs/applications/radio/minimodem/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
     standard FSK protocols such as Bell103, Bell202, RTTY, NOAA SAME, and
     Caller-ID.
     '';
-    homepage = http://www.whence.com/minimodem/;
+    homepage = "http://www.whence.com/minimodem/";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = with stdenv.lib.platforms; linux;
     maintainers = with stdenv.lib.maintainers; [ relrod ];
diff --git a/pkgs/applications/radio/multimon-ng/default.nix b/pkgs/applications/radio/multimon-ng/default.nix
index c0f189686ac9b..de6b8504091da 100644
--- a/pkgs/applications/radio/multimon-ng/default.nix
+++ b/pkgs/applications/radio/multimon-ng/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation {
       AFSK2400 AFSK2400_2 AFSK2400_3 HAPN4800 FSK9600 DTMF ZVEI1 ZVEI2
       ZVEI3 DZVEI PZVEI EEA EIA CCIR MORSE CW
     '';
-    homepage = https://github.com/EliasOenal/multimon-ng;
+    homepage = "https://github.com/EliasOenal/multimon-ng";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ the-kenny ];
diff --git a/pkgs/applications/radio/qradiolink/default.nix b/pkgs/applications/radio/qradiolink/default.nix
index a00ec6c47eb8b..4c792811dc59f 100644
--- a/pkgs/applications/radio/qradiolink/default.nix
+++ b/pkgs/applications/radio/qradiolink/default.nix
@@ -52,7 +52,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "SDR transceiver application for analog and digital modes";
-    homepage = http://qradiolink.org/;
+    homepage = "http://qradiolink.org/";
     license = licenses.agpl3;
     maintainers = [ maintainers.markuskowa ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/radio/qsstv/default.nix b/pkgs/applications/radio/qsstv/default.nix
index a4ef5a2a0d1bf..d5d12a7140312 100644
--- a/pkgs/applications/radio/qsstv/default.nix
+++ b/pkgs/applications/radio/qsstv/default.nix
@@ -27,7 +27,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Qt-based slow-scan TV and fax";
-    homepage = http://users.telenet.be/on4qz/;
+    homepage = "http://users.telenet.be/on4qz/";
     platforms = platforms.linux;
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ hax404 ];
diff --git a/pkgs/applications/radio/rtl-sdr/default.nix b/pkgs/applications/radio/rtl-sdr/default.nix
index 69c568c3a1bb8..8fb5154ff7887 100644
--- a/pkgs/applications/radio/rtl-sdr/default.nix
+++ b/pkgs/applications/radio/rtl-sdr/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Turns your Realtek RTL2832 based DVB dongle into a SDR receiver";
-    homepage = http://sdr.osmocom.org/trac/wiki/rtl-sdr;
+    homepage = "http://sdr.osmocom.org/trac/wiki/rtl-sdr";
     license = licenses.gpl2Plus;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/radio/rtl_433/default.nix b/pkgs/applications/radio/rtl_433/default.nix
index 5faac96d28f09..78d0f8befc981 100644
--- a/pkgs/applications/radio/rtl_433/default.nix
+++ b/pkgs/applications/radio/rtl_433/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Decode traffic from devices that broadcast on 433.9 MHz";
-    homepage = https://github.com/merbanan/rtl_433;
+    homepage = "https://github.com/merbanan/rtl_433";
     license = licenses.gpl2;
     maintainers = with maintainers; [ earldouglas ];
     platforms = platforms.all;
diff --git a/pkgs/applications/radio/soapyairspy/default.nix b/pkgs/applications/radio/soapyairspy/default.nix
index eacbe66e5e5a2..4a69e52741e7f 100644
--- a/pkgs/applications/radio/soapyairspy/default.nix
+++ b/pkgs/applications/radio/soapyairspy/default.nix
@@ -22,7 +22,7 @@ in stdenv.mkDerivation {
   cmakeFlags = [ "-DSoapySDR_DIR=${soapysdr}/share/cmake/SoapySDR/" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapyAirspy;
+    homepage = "https://github.com/pothosware/SoapyAirspy";
     description = "SoapySDR plugin for Airspy devices";
     license = licenses.mit;
     maintainers = with maintainers; [ markuskowa ];
diff --git a/pkgs/applications/radio/soapybladerf/default.nix b/pkgs/applications/radio/soapybladerf/default.nix
index 0bb05a204da75..7e2e17a845584 100644
--- a/pkgs/applications/radio/soapybladerf/default.nix
+++ b/pkgs/applications/radio/soapybladerf/default.nix
@@ -23,7 +23,7 @@ in stdenv.mkDerivation {
 
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapyBladeRF;
+    homepage = "https://github.com/pothosware/SoapyBladeRF";
     description = "SoapySDR plugin for BladeRF devices";
     license = licenses.lgpl21;
     maintainers = with maintainers; [ markuskowa ];
diff --git a/pkgs/applications/radio/soapyhackrf/default.nix b/pkgs/applications/radio/soapyhackrf/default.nix
index 5ab4c3363f48d..e472b1cc3ae9b 100644
--- a/pkgs/applications/radio/soapyhackrf/default.nix
+++ b/pkgs/applications/radio/soapyhackrf/default.nix
@@ -22,7 +22,7 @@ in stdenv.mkDerivation {
   cmakeFlags = [ "-DSoapySDR_DIR=${soapysdr}/share/cmake/SoapySDR/" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapyHackRF;
+    homepage = "https://github.com/pothosware/SoapyHackRF";
     description = "SoapySDR plugin for HackRF devices";
     license = licenses.mit;
     maintainers = with maintainers; [ markuskowa ];
diff --git a/pkgs/applications/radio/soapyremote/default.nix b/pkgs/applications/radio/soapyremote/default.nix
index 2f73403a168bb..ed94693db41fe 100644
--- a/pkgs/applications/radio/soapyremote/default.nix
+++ b/pkgs/applications/radio/soapyremote/default.nix
@@ -20,7 +20,7 @@ in stdenv.mkDerivation {
   cmakeFlags = [ "-DSoapySDR_DIR=${soapysdr}/share/cmake/SoapySDR/" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapyRemote;
+    homepage = "https://github.com/pothosware/SoapyRemote";
     description = "SoapySDR plugin for remote access to SDRs";
     license = licenses.boost;
     maintainers = with maintainers; [ markuskowa ];
diff --git a/pkgs/applications/radio/soapyrtlsdr/default.nix b/pkgs/applications/radio/soapyrtlsdr/default.nix
index 8bf473cb36a3c..8f342190ba7e1 100644
--- a/pkgs/applications/radio/soapyrtlsdr/default.nix
+++ b/pkgs/applications/radio/soapyrtlsdr/default.nix
@@ -22,7 +22,7 @@ in stdenv.mkDerivation {
   cmakeFlags = [ "-DSoapySDR_DIR=${soapysdr}/share/cmake/SoapySDR/" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapyRTLSDR;
+    homepage = "https://github.com/pothosware/SoapyRTLSDR";
     description = "SoapySDR plugin for RTL-SDR devices";
     license = licenses.mit;
     maintainers = with maintainers; [ ragge ];
diff --git a/pkgs/applications/radio/soapysdr/default.nix b/pkgs/applications/radio/soapysdr/default.nix
index e072ec97b9745..36df6ad19d313 100644
--- a/pkgs/applications/radio/soapysdr/default.nix
+++ b/pkgs/applications/radio/soapysdr/default.nix
@@ -46,7 +46,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapySDR;
+    homepage = "https://github.com/pothosware/SoapySDR";
     description = "Vendor and platform neutral SDR support library";
     license = licenses.boost;
     maintainers = with maintainers; [ markuskowa ];
diff --git a/pkgs/applications/radio/soapyuhd/default.nix b/pkgs/applications/radio/soapyuhd/default.nix
index 9e910584158df..a169116c29a1b 100644
--- a/pkgs/applications/radio/soapyuhd/default.nix
+++ b/pkgs/applications/radio/soapyuhd/default.nix
@@ -26,7 +26,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/pothosware/SoapyAirspy;
+    homepage = "https://github.com/pothosware/SoapyAirspy";
     description = "SoapySDR plugin for UHD devices";
     license = licenses.gpl3;
     maintainers = with maintainers; [ markuskowa ];
diff --git a/pkgs/applications/radio/tlf/default.nix b/pkgs/applications/radio/tlf/default.nix
index 530008702f10d..e3fdb9718e4a5 100644
--- a/pkgs/applications/radio/tlf/default.nix
+++ b/pkgs/applications/radio/tlf/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       EU SPRINT shortwave contests (single operator) as well as a LOT MORE basic
       contests, general QSO and DXpedition mode.
     '';
-    homepage = https://tlf.github.io/;
+    homepage = "https://tlf.github.io/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ etu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/radio/tqsl/default.nix b/pkgs/applications/radio/tqsl/default.nix
index 451a63c3d81f2..fd5f5505a6726 100644
--- a/pkgs/applications/radio/tqsl/default.nix
+++ b/pkgs/applications/radio/tqsl/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Software for using the ARRL Logbook of the World";
-    homepage = https://www.arrl.org/tqsl-download;
+    homepage = "https://www.arrl.org/tqsl-download";
     license = licenses.bsd3;
     platforms = platforms.linux;
     maintainers = [ maintainers.dpflug ];
diff --git a/pkgs/applications/radio/welle-io/default.nix b/pkgs/applications/radio/welle-io/default.nix
index 66a033fef25b0..971399c4a229a 100644
--- a/pkgs/applications/radio/welle-io/default.nix
+++ b/pkgs/applications/radio/welle-io/default.nix
@@ -42,7 +42,7 @@ in mkDerivation {
 
   meta = with lib; {
     description = "A DAB/DAB+ Software Radio";
-    homepage = https://www.welle.io/;
+    homepage = "https://www.welle.io/";
     maintainers = with maintainers; [ ck3d markuskowa ];
     license = licenses.gpl2;
     platforms = with platforms; [ "x86_64-linux" "i686-linux" ] ++ darwin;
diff --git a/pkgs/applications/radio/xlog/default.nix b/pkgs/applications/radio/xlog/default.nix
index 2268cdf725dbb..31bcfa463b954 100644
--- a/pkgs/applications/radio/xlog/default.nix
+++ b/pkgs/applications/radio/xlog/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
          location in latitude and longitude and distance and heading in kilometers or miles,
          both for short and long path.
       '';
-    homepage = https://www.nongnu.org/xlog;
+    homepage = "https://www.nongnu.org/xlog";
     maintainers = [ maintainers.mafo ];
     license = licenses.gpl3;
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/astronomy/astrolabe-generator/default.nix b/pkgs/applications/science/astronomy/astrolabe-generator/default.nix
index 32d89866b5aef..cb3f3131ea14a 100644
--- a/pkgs/applications/science/astronomy/astrolabe-generator/default.nix
+++ b/pkgs/applications/science/astronomy/astrolabe-generator/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib;{
-    homepage = https://www.astrolabeproject.com;
+    homepage = "https://www.astrolabeproject.com";
     description = "A Java-based tool for generating EPS files for constructing astrolabes and related tools";
     license = licenses.gpl3;
     maintainers = [ maintainers.genesis ];
diff --git a/pkgs/applications/science/astronomy/celestia/default.nix b/pkgs/applications/science/astronomy/celestia/default.nix
index e72354c86585f..340641917e4f0 100644
--- a/pkgs/applications/science/astronomy/celestia/default.nix
+++ b/pkgs/applications/science/astronomy/celestia/default.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Free space simulation";
-    homepage = https://celestia.space/;
+    homepage = "https://celestia.space/";
     license = stdenv.lib.licenses.gpl2;
 
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/astronomy/gildas/default.nix b/pkgs/applications/science/astronomy/gildas/default.nix
index 9908439e10d45..38d8e23a811b3 100644
--- a/pkgs/applications/science/astronomy/gildas/default.nix
+++ b/pkgs/applications/science/astronomy/gildas/default.nix
@@ -61,7 +61,7 @@ stdenv.mkDerivation rec {
       extensible. GILDAS is written in Fortran-90, with a
       few parts in C/C++ (mainly keyboard interaction,
       plotting, widgets).'';
-    homepage = http://www.iram.fr/IRAMFR/GILDAS/gildas.html;
+    homepage = "http://www.iram.fr/IRAMFR/GILDAS/gildas.html";
     license = stdenv.lib.licenses.free;
     maintainers = [ stdenv.lib.maintainers.bzizou stdenv.lib.maintainers.smaret ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/science/astronomy/gpredict/default.nix b/pkgs/applications/science/astronomy/gpredict/default.nix
index f36431beac138..1ae80c0b0aa6a 100644
--- a/pkgs/applications/science/astronomy/gpredict/default.nix
+++ b/pkgs/applications/science/astronomy/gpredict/default.nix
@@ -28,7 +28,7 @@ in stdenv.mkDerivation {
     '';
     license = licenses.gpl2;
     platforms = platforms.linux;
-    homepage = http://gpredict.oz9aec.net/;
+    homepage = "http://gpredict.oz9aec.net/";
     maintainers = [ maintainers.markuskowa maintainers.cmcdragonkai ];
   };
 }
diff --git a/pkgs/applications/science/astronomy/gravit/default.nix b/pkgs/applications/science/astronomy/gravit/default.nix
index 15f72938effe5..0a98563ed0e54 100644
--- a/pkgs/applications/science/astronomy/gravit/default.nix
+++ b/pkgs/applications/science/astronomy/gravit/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = https://gravit.slowchop.com;
+    homepage = "https://gravit.slowchop.com";
     description = "Beautiful OpenGL-based gravity simulator";
     license = stdenv.lib.licenses.gpl2;
 
diff --git a/pkgs/applications/science/astronomy/openspace/default.nix b/pkgs/applications/science/astronomy/openspace/default.nix
index cfdd320d201ca..566fd61f1a7b5 100644
--- a/pkgs/applications/science/astronomy/openspace/default.nix
+++ b/pkgs/applications/science/astronomy/openspace/default.nix
@@ -82,7 +82,7 @@ stdenv.mkDerivation rec {
 
       WARNING: This build is not very usable for now.
     '';
-    homepage  = https://www.openspaceproject.com/;
+    homepage  = "https://www.openspaceproject.com/";
     license   = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.linux;
     broken = true; # fails to build
diff --git a/pkgs/applications/science/astronomy/stellarium/default.nix b/pkgs/applications/science/astronomy/stellarium/default.nix
index 3cb34576c46b6..a0cd535f362c5 100644
--- a/pkgs/applications/science/astronomy/stellarium/default.nix
+++ b/pkgs/applications/science/astronomy/stellarium/default.nix
@@ -24,7 +24,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Free open-source planetarium";
-    homepage = http://stellarium.org/;
+    homepage = "http://stellarium.org/";
     license = licenses.gpl2;
 
     platforms = platforms.linux; # should be mesaPlatforms, but we don't have qt on darwin
diff --git a/pkgs/applications/science/astronomy/xplanet/default.nix b/pkgs/applications/science/astronomy/xplanet/default.nix
index f306f9265abad..a314678b6ea3a 100644
--- a/pkgs/applications/science/astronomy/xplanet/default.nix
+++ b/pkgs/applications/science/astronomy/xplanet/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Renders an image of the earth or other planets into the X root window";
-    homepage = http://xplanet.sourceforge.net;
+    homepage = "http://xplanet.sourceforge.net";
     license = licenses.gpl2;
     maintainers = with maintainers; [ lassulus sander ];
     platforms = platforms.all;
diff --git a/pkgs/applications/science/biology/ants/default.nix b/pkgs/applications/science/biology/ants/default.nix
index 6e1a2a3407ee1..20eedfaaa16c3 100644
--- a/pkgs/applications/science/biology/ants/default.nix
+++ b/pkgs/applications/science/biology/ants/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ANTsX/ANTs;
+    homepage = "https://github.com/ANTsX/ANTs";
     description = "Advanced normalization toolkit for medical image registration and other processing";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/aragorn/default.nix b/pkgs/applications/science/biology/aragorn/default.nix
index a5f0ebc18abd6..956e4d884531c 100644
--- a/pkgs/applications/science/biology/aragorn/default.nix
+++ b/pkgs/applications/science/biology/aragorn/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Detects tRNA, mtRNA, and tmRNA genes in nucleotide sequences";
-    homepage = http://mbio-serv2.mbioekol.lu.se/ARAGORN/;
+    homepage = "http://mbio-serv2.mbioekol.lu.se/ARAGORN/";
     license = licenses.gpl2;
     maintainers = [ maintainers.bzizou ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/bcftools/default.nix b/pkgs/applications/science/biology/bcftools/default.nix
index 4a6a464de4648..b847fd8b5fe47 100644
--- a/pkgs/applications/science/biology/bcftools/default.nix
+++ b/pkgs/applications/science/biology/bcftools/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Tools for manipulating BCF2/VCF/gVCF format, SNP and short indel sequence variants";
     license = licenses.mit;
-    homepage = http://www.htslib.org/;
+    homepage = "http://www.htslib.org/";
     platforms = platforms.unix;
     maintainers = [ maintainers.mimame ];
   };
diff --git a/pkgs/applications/science/biology/bedtools/default.nix b/pkgs/applications/science/biology/bedtools/default.nix
index 9af2ec88c3921..332e06ea0cf5a 100644
--- a/pkgs/applications/science/biology/bedtools/default.nix
+++ b/pkgs/applications/science/biology/bedtools/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A powerful toolset for genome arithmetic.";
     license = licenses.gpl2;
-    homepage = https://bedtools.readthedocs.io/en/latest/;
+    homepage = "https://bedtools.readthedocs.io/en/latest/";
     maintainers = with maintainers; [ jbedo ];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/science/biology/bftools/default.nix b/pkgs/applications/science/biology/bftools/default.nix
index 29e8bca52625a..2ecefee340fd6 100644
--- a/pkgs/applications/science/biology/bftools/default.nix
+++ b/pkgs/applications/science/biology/bftools/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
     description = "A bundle of scripts for using Bio-Formats on the command line with bioformats_package.jar already included";
     license = licenses.gpl2;
     platforms = platforms.all;
-    homepage = https://www.openmicroscopy.org/bio-formats/;
+    homepage = "https://www.openmicroscopy.org/bio-formats/";
     maintainers = [ maintainers.tbenst ];
   };
 }
diff --git a/pkgs/applications/science/biology/blast/default.nix b/pkgs/applications/science/biology/blast/default.nix
index ad737c6699d60..95a1b905e9e24 100644
--- a/pkgs/applications/science/biology/blast/default.nix
+++ b/pkgs/applications/science/biology/blast/default.nix
@@ -97,7 +97,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = ''Basic Local Alignment Search Tool (BLAST) finds regions of
     similarity between biological sequences'';
-    homepage = https://blast.ncbi.nlm.nih.gov/Blast.cgi;
+    homepage = "https://blast.ncbi.nlm.nih.gov/Blast.cgi";
     license = licenses.publicDomain;
 
     # Version 2.10.0 fails on Darwin
diff --git a/pkgs/applications/science/biology/bowtie2/default.nix b/pkgs/applications/science/biology/bowtie2/default.nix
index 962428d67cf9c..dc818e2fb8684 100644
--- a/pkgs/applications/science/biology/bowtie2/default.nix
+++ b/pkgs/applications/science/biology/bowtie2/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "An ultrafast and memory-efficient tool for aligning sequencing reads to long reference sequences";
     license = licenses.gpl3;
-    homepage = http://bowtie-bio.sf.net/bowtie2;
+    homepage = "http://bowtie-bio.sf.net/bowtie2";
     maintainers = with maintainers; [ rybern ];
     platforms = platforms.all;
     broken = stdenv.isAarch64;
diff --git a/pkgs/applications/science/biology/bwa/default.nix b/pkgs/applications/science/biology/bwa/default.nix
index 5e39320bf8355..e478c104edef9 100644
--- a/pkgs/applications/science/biology/bwa/default.nix
+++ b/pkgs/applications/science/biology/bwa/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A software package for mapping low-divergent sequences against a large reference genome, such as the human genome";
     license     = licenses.gpl3;
-    homepage    = http://bio-bwa.sourceforge.net/;
+    homepage    = "http://bio-bwa.sourceforge.net/";
     maintainers = with maintainers; [ luispedro ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/biology/cd-hit/default.nix b/pkgs/applications/science/biology/cd-hit/default.nix
index 1a41a28a19aae..0db788b0f7431 100644
--- a/pkgs/applications/science/biology/cd-hit/default.nix
+++ b/pkgs/applications/science/biology/cd-hit/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
   meta = with stdenv.lib; {
     description = "Clustering and comparing protein or nucleotide sequences";
-    homepage = http://weizhongli-lab.org/cd-hit/;
+    homepage = "http://weizhongli-lab.org/cd-hit/";
     license = licenses.gpl2;
     maintainers = [ maintainers.bzizou ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/clustal-omega/default.nix b/pkgs/applications/science/biology/clustal-omega/default.nix
index 00acc25028c03..71cf879853767 100644
--- a/pkgs/applications/science/biology/clustal-omega/default.nix
+++ b/pkgs/applications/science/biology/clustal-omega/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "General purpose multiple sequence alignment program for protein and DNA/RNA";
-    homepage = http://www.clustal.org/omega/;
+    homepage = "http://www.clustal.org/omega/";
     license = licenses.gpl2;
     maintainers = [ maintainers.bzizou ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/cmtk/default.nix b/pkgs/applications/science/biology/cmtk/default.nix
index 1ebfa2fca57a1..41805c15aed59 100644
--- a/pkgs/applications/science/biology/cmtk/default.nix
+++ b/pkgs/applications/science/biology/cmtk/default.nix
@@ -21,6 +21,6 @@ stdenv.mkDerivation {
     maintainers = with maintainers; [ tbenst ];
     platforms = platforms.all;
     license     = licenses.gpl3;
-    homepage    = https://www.nitrc.org/projects/cmtk/;
+    homepage    = "https://www.nitrc.org/projects/cmtk/";
   };
 }
diff --git a/pkgs/applications/science/biology/conglomerate/default.nix b/pkgs/applications/science/biology/conglomerate/default.nix
index 23182fcadc6b5..971e2f23055b2 100644
--- a/pkgs/applications/science/biology/conglomerate/default.nix
+++ b/pkgs/applications/science/biology/conglomerate/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/BIC-MNI/conglomerate;
+    homepage = "https://github.com/BIC-MNI/conglomerate";
     description = "More command-line utilities for working with MINC files";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/dcm2niix/default.nix b/pkgs/applications/science/biology/dcm2niix/default.nix
index 7c328034a3062..8ea3588fa8cac 100644
--- a/pkgs/applications/science/biology/dcm2niix/default.nix
+++ b/pkgs/applications/science/biology/dcm2niix/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       dcm2niix is a designed to convert neuroimaging data from the
       DICOM format to the NIfTI format.
     '';
-    homepage = https://www.nitrc.org/projects/dcm2nii;
+    homepage = "https://www.nitrc.org/projects/dcm2nii";
     license = licenses.bsd3;
     maintainers = [ maintainers.ashgillman ];
     platforms = platforms.all;
diff --git a/pkgs/applications/science/biology/diamond/default.nix b/pkgs/applications/science/biology/diamond/default.nix
index c1d20a11ca96a..dd1e13ec7162e 100644
--- a/pkgs/applications/science/biology/diamond/default.nix
+++ b/pkgs/applications/science/biology/diamond/default.nix
@@ -31,10 +31,10 @@ stdenv.mkDerivation {
       "Fast and sensitive protein alignment using DIAMOND",
       Nature Methods 12, 59-60 (2015).
         '';
-    homepage = https://github.com/bbuchfink/diamond;
+    homepage = "https://github.com/bbuchfink/diamond";
     license = {
       fullName = "University of Tuebingen, Benjamin Buchfink";
-      url = https://raw.githubusercontent.com/bbuchfink/diamond/master/src/COPYING;
+      url = "https://raw.githubusercontent.com/bbuchfink/diamond/master/src/COPYING";
     };
     maintainers = [ maintainers.metabar ];
   };
diff --git a/pkgs/applications/science/biology/ecopcr/default.nix b/pkgs/applications/science/biology/ecopcr/default.nix
index 9e1b16ff94491..2e744c7b2b9ee 100644
--- a/pkgs/applications/science/biology/ecopcr/default.nix
+++ b/pkgs/applications/science/biology/ecopcr/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
       coverage and barcode specificity. New barcode primers can be
       developed using the ecoPrimers software.
     '';
-    homepage = https://git.metabarcoding.org/obitools/ecopcr/wikis/home;
+    homepage = "https://git.metabarcoding.org/obitools/ecopcr/wikis/home";
     license = licenses.cecill20;
     maintainers = [ maintainers.metabar ];
   };
diff --git a/pkgs/applications/science/biology/eggnog-mapper/default.nix b/pkgs/applications/science/biology/eggnog-mapper/default.nix
index e11f4ebf77c54..3ef52e543933b 100644
--- a/pkgs/applications/science/biology/eggnog-mapper/default.nix
+++ b/pkgs/applications/science/biology/eggnog-mapper/default.nix
@@ -33,7 +33,7 @@ python27Packages.buildPythonApplication rec {
   meta = with stdenv.lib; {
     description = "Fast genome-wide functional annotation through orthology assignment";
     license = licenses.gpl2;
-    homepage = https://github.com/eggnogdb/eggnog-mapper/wiki;
+    homepage = "https://github.com/eggnogdb/eggnog-mapper/wiki";
     maintainers = with maintainers; [ luispedro ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/science/biology/emboss/default.nix b/pkgs/applications/science/biology/emboss/default.nix
index 2110a9bcfabab..e2374bcd1e2f8 100644
--- a/pkgs/applications/science/biology/emboss/default.nix
+++ b/pkgs/applications/science/biology/emboss/default.nix
@@ -23,6 +23,6 @@ stdenv.mkDerivation {
     data in a variety of formats and even allows transparent retrieval of
     sequence data from the web.''; 
     license     = "GPL2";
-    homepage    = http://emboss.sourceforge.net/;
+    homepage    = "http://emboss.sourceforge.net/";
   };
 }
diff --git a/pkgs/applications/science/biology/est-sfs/default.nix b/pkgs/applications/science/biology/est-sfs/default.nix
index dcc7252335517..1b15c06c670a1 100644
--- a/pkgs/applications/science/biology/est-sfs/default.nix
+++ b/pkgs/applications/science/biology/est-sfs/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://sourceforge.net/projects/est-usfs;
+    homepage = "https://sourceforge.net/projects/est-usfs";
     description = "Estimate the unfolded site frequency spectrum and ancestral states";
     license = licenses.gpl3;
     maintainers = [ maintainers.bzizou ];
diff --git a/pkgs/applications/science/biology/exonerate/default.nix b/pkgs/applications/science/biology/exonerate/default.nix
index 1dd6b44692a38..b2c49ab007676 100644
--- a/pkgs/applications/science/biology/exonerate/default.nix
+++ b/pkgs/applications/science/biology/exonerate/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Generic tool for sequence alignment";
-    homepage = https://www.ebi.ac.uk/about/vertebrate-genomics/software/exonerate;
+    homepage = "https://www.ebi.ac.uk/about/vertebrate-genomics/software/exonerate";
     license = licenses.gpl3;
     maintainers = [ maintainers.bzizou ];
     platforms = platforms.unix ;
diff --git a/pkgs/applications/science/biology/freebayes/default.nix b/pkgs/applications/science/biology/freebayes/default.nix
index 7d0a36e755f62..bd80df56cb905 100644
--- a/pkgs/applications/science/biology/freebayes/default.nix
+++ b/pkgs/applications/science/biology/freebayes/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Bayesian haplotype-based polymorphism discovery and genotyping";
     license     = licenses.mit;
-    homepage    = https://github.com/ekg/freebayes;
+    homepage    = "https://github.com/ekg/freebayes";
     maintainers = with maintainers; [ jdagilliland ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/biology/hisat2/default.nix b/pkgs/applications/science/biology/hisat2/default.nix
index 824856301145b..fb7f2cba3de3b 100644
--- a/pkgs/applications/science/biology/hisat2/default.nix
+++ b/pkgs/applications/science/biology/hisat2/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Graph based aligner";
     license = licenses.gpl3;
-    homepage = https://ccb.jhu.edu/software/hisat2/index.shtml;
+    homepage = "https://ccb.jhu.edu/software/hisat2/index.shtml";
     maintainers = with maintainers; [ jbedo ];
     platforms = [ "x86_64-linux" "i686-linux" ];
   };
diff --git a/pkgs/applications/science/biology/hmmer/default.nix b/pkgs/applications/science/biology/hmmer/default.nix
index 69ecb228697b6..3786b62f7477f 100644
--- a/pkgs/applications/science/biology/hmmer/default.nix
+++ b/pkgs/applications/science/biology/hmmer/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       HMMER is designed to detect remote homologs as sensitively as possible, relying on the strength of its underlying probability models. In the past, this strength came at significant computational expense, but as of the new HMMER3 project, HMMER is now essentially as fast as BLAST.
       HMMER can be downloaded and installed as a command line tool on your own hardware, and now it is also more widely accessible to the scientific community via new search servers at the European Bioinformatics Institute.
     '';
-    homepage = http://hmmer.org/;
+    homepage = "http://hmmer.org/";
     license = licenses.gpl3;
     maintainers = [ maintainers.iimog ];
     platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/applications/science/biology/igv/default.nix b/pkgs/applications/science/biology/igv/default.nix
index 04699a84b692d..aa6c95071b7bb 100644
--- a/pkgs/applications/science/biology/igv/default.nix
+++ b/pkgs/applications/science/biology/igv/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.broadinstitute.org/igv/;
+    homepage = "https://www.broadinstitute.org/igv/";
     description = "A visualization tool for interactive exploration of genomic datasets";
     license = licenses.lgpl21;
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/itsx/default.nix b/pkgs/applications/science/biology/itsx/default.nix
index 1ba8cdf22ba02..ac534a4ec3cd4 100644
--- a/pkgs/applications/science/biology/itsx/default.nix
+++ b/pkgs/applications/science/biology/itsx/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Improved software detection and extraction of ITS1 and ITS2 from ribosomal ITS sequences of fungi and other eukaryotes for use in environmental sequencing";
-    homepage = https://microbiology.se/software/itsx/;
+    homepage = "https://microbiology.se/software/itsx/";
     license = licenses.gpl3;
     maintainers = [ maintainers.bzizou ];
     platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/applications/science/biology/iv/default.nix b/pkgs/applications/science/biology/iv/default.nix
index 37abcf396211a..82fe36940081b 100644
--- a/pkgs/applications/science/biology/iv/default.nix
+++ b/pkgs/applications/science/biology/iv/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec
     meta = with stdenv.lib;
       { description = "InterViews graphical library for Neuron";
         license     = licenses.bsd3;
-        homepage    = http://www.neuron.yale.edu/neuron;
+        homepage    = "http://www.neuron.yale.edu/neuron";
         platforms   = platforms.all;
       };
   }
diff --git a/pkgs/applications/science/biology/megahit/default.nix b/pkgs/applications/science/biology/megahit/default.nix
index 86414980177f8..35ef280ed676e 100644
--- a/pkgs/applications/science/biology/megahit/default.nix
+++ b/pkgs/applications/science/biology/megahit/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "An ultra-fast single-node solution for large and complex metagenomics assembly via succinct de Bruijn graph";
     license     = licenses.gpl3;
-    homepage    = https://github.com/voutcn/megahit;
+    homepage    = "https://github.com/voutcn/megahit";
     maintainers = with maintainers; [ luispedro ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/biology/messer-slim/default.nix b/pkgs/applications/science/biology/messer-slim/default.nix
index d485666f39313..201e38cfc5383 100644
--- a/pkgs/applications/science/biology/messer-slim/default.nix
+++ b/pkgs/applications/science/biology/messer-slim/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
      description = "An evolutionary simulation framework";
-     homepage = https://messerlab.org/slim/;
+     homepage = "https://messerlab.org/slim/";
      license = with stdenv.lib.licenses; [ gpl3 ];
      maintainers = with stdenv.lib.maintainers; [ bzizou ];
      platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/science/biology/migrate/default.nix b/pkgs/applications/science/biology/migrate/default.nix
index d80e6e7b30df6..0e2aa1c1a7915 100644
--- a/pkgs/applications/science/biology/migrate/default.nix
+++ b/pkgs/applications/science/biology/migrate/default.nix
@@ -16,7 +16,7 @@ gccStdenv.mkDerivation rec {
 
   meta = with gccStdenv.lib; {
     description = "Estimates population size, migration, population splitting parameters using genetic/genomic data";
-    homepage = https://peterbeerli.com/migrate-html5/index.html;
+    homepage = "https://peterbeerli.com/migrate-html5/index.html";
     license = licenses.mit;
     maintainers = [ maintainers.bzizou ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/minc-tools/default.nix b/pkgs/applications/science/biology/minc-tools/default.nix
index 4c8b768a56a91..db803ea4922f0 100644
--- a/pkgs/applications/science/biology/minc-tools/default.nix
+++ b/pkgs/applications/science/biology/minc-tools/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/BIC-MNI/minc-tools;
+    homepage = "https://github.com/BIC-MNI/minc-tools";
     description = "Command-line utilities for working with MINC files";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/minimap2/default.nix b/pkgs/applications/science/biology/minimap2/default.nix
index bff2bcf428b53..e33a17537910b 100644
--- a/pkgs/applications/science/biology/minimap2/default.nix
+++ b/pkgs/applications/science/biology/minimap2/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   
   meta = with stdenv.lib; {
     description = "A versatile pairwise aligner for genomic and spliced nucleotide sequences";
-    homepage = https://lh3.github.io/minimap2;
+    homepage = "https://lh3.github.io/minimap2";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = [ maintainers.arcadio ];
diff --git a/pkgs/applications/science/biology/mni_autoreg/default.nix b/pkgs/applications/science/biology/mni_autoreg/default.nix
index ab22fb7232ffb..254d874f9d912 100644
--- a/pkgs/applications/science/biology/mni_autoreg/default.nix
+++ b/pkgs/applications/science/biology/mni_autoreg/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/BIC-MNI/mni_autoreg;
+    homepage = "https://github.com/BIC-MNI/mni_autoreg";
     description = "Tools for automated registration using the MINC image format";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/mosdepth/default.nix b/pkgs/applications/science/biology/mosdepth/default.nix
index 717b8c3ab2f3f..569c63afa7a16 100644
--- a/pkgs/applications/science/biology/mosdepth/default.nix
+++ b/pkgs/applications/science/biology/mosdepth/default.nix
@@ -38,7 +38,7 @@ in stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "fast BAM/CRAM depth calculation for WGS, exome, or targeted sequencing.";
     license = licenses.mit;
-    homepage = https://github.com/brentp/mosdepth;
+    homepage = "https://github.com/brentp/mosdepth";
     maintainers = with maintainers; [ jbedo ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/science/biology/mrbayes/default.nix b/pkgs/applications/science/biology/mrbayes/default.nix
index 1dd92af58eb1e..8ee7bccf075fe 100644
--- a/pkgs/applications/science/biology/mrbayes/default.nix
+++ b/pkgs/applications/science/biology/mrbayes/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
       MCMC) to approximate the posterior probabilities of trees.
     '';
     license     = "GPL2";
-    homepage    = http://mrbayes.csit.fsu.edu/;
+    homepage    = "http://mrbayes.csit.fsu.edu/";
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/applications/science/biology/muscle/default.nix b/pkgs/applications/science/biology/muscle/default.nix
index 9cbabc7ab37ed..7ed18349259e3 100644
--- a/pkgs/applications/science/biology/muscle/default.nix
+++ b/pkgs/applications/science/biology/muscle/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A multiple sequence alignment method with reduced time and space complexity";
     license     = licenses.publicDomain;
-    homepage    = https://www.drive5.com/muscle/;
+    homepage    = "https://www.drive5.com/muscle/";
     maintainers = [ maintainers.unode ];
     # NOTE: Supposed to be compatible with darwin/intel & PPC but currently fails.
     # Anyone with access to these platforms is welcome to give it a try
diff --git a/pkgs/applications/science/biology/ncbi-tools/default.nix b/pkgs/applications/science/biology/ncbi-tools/default.nix
index 1c24ef0925421..cc8ebf7f37d93 100644
--- a/pkgs/applications/science/biology/ncbi-tools/default.nix
+++ b/pkgs/applications/science/biology/ncbi-tools/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = ''NCBI Bioinformatics toolbox (incl. BLAST)'';
     longDescription = ''The NCBI Bioinformatics toolsbox, including command-line utilties, libraries and include files. No X11 support'';
-    homepage = http://www.ncbi.nlm.nih.gov/IEB/ToolBox/; 
+    homepage = "http://www.ncbi.nlm.nih.gov/IEB/ToolBox/"; 
     license = "GPL";
     priority = 5;   # zlib.so gives a conflict with zlib
     broken = true;
diff --git a/pkgs/applications/science/biology/neuron/default.nix b/pkgs/applications/science/biology/neuron/default.nix
index 4e6d3494c7216..8cad5f466c5f0 100644
--- a/pkgs/applications/science/biology/neuron/default.nix
+++ b/pkgs/applications/science/biology/neuron/default.nix
@@ -78,7 +78,7 @@ stdenv.mkDerivation rec {
                 involving many ion-specific channels, ion accumulation, and second messengers";
 
     license     = licenses.bsd3;
-    homepage    = http://www.neuron.yale.edu/neuron;
+    homepage    = "http://www.neuron.yale.edu/neuron";
     maintainers = [ maintainers.adev ];
     # source claims it's only tested for x86 and powerpc
     platforms   = platforms.x86_64 ++ platforms.i686;
diff --git a/pkgs/applications/science/biology/niftyreg/default.nix b/pkgs/applications/science/biology/niftyreg/default.nix
index 48bd1b21ecd6c..fd7dc4f1fbb4f 100644
--- a/pkgs/applications/science/biology/niftyreg/default.nix
+++ b/pkgs/applications/science/biology/niftyreg/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://cmictig.cs.ucl.ac.uk/wiki/index.php/NiftyReg;
+    homepage = "http://cmictig.cs.ucl.ac.uk/wiki/index.php/NiftyReg";
     description = "Medical image registration software";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/biology/niftyseg/default.nix b/pkgs/applications/science/biology/niftyseg/default.nix
index f70054e97716b..38194697223de 100644
--- a/pkgs/applications/science/biology/niftyseg/default.nix
+++ b/pkgs/applications/science/biology/niftyseg/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://cmictig.cs.ucl.ac.uk/research/software/software-nifty/niftyseg;
+    homepage = "http://cmictig.cs.ucl.ac.uk/research/software/software-nifty/niftyseg";
     description = "Software for medical image segmentation, bias field correction, and cortical thickness calculation";
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/biology/paml/default.nix b/pkgs/applications/science/biology/paml/default.nix
index 731e31c588fa8..7a2dc2782ab0a 100644
--- a/pkgs/applications/science/biology/paml/default.nix
+++ b/pkgs/applications/science/biology/paml/default.nix
@@ -28,6 +28,6 @@ stdenv.mkDerivation rec {
     description     = "Phylogenetic Analysis by Maximum Likelihood (PAML)";
     longDescription = ''PAML is a package of programs for phylogenetic analyses of DNA or protein sequences using maximum likelihood. It is maintained and distributed for academic use free of charge by Ziheng Yang. ANSI C source codes are distributed for UNIX/Linux/Mac OSX, and executables are provided for MS Windows. PAML is not good for tree making. It may be used to estimate parameters and test hypotheses to study the evolutionary process, when you have reconstructed trees using other programs such as PAUP*, PHYLIP, MOLPHY, PhyML, RaxML, etc.'';
     license     = "non-commercial";
-    homepage    = http://abacus.gene.ucl.ac.uk/software/paml.html;
+    homepage    = "http://abacus.gene.ucl.ac.uk/software/paml.html";
   };
 }
diff --git a/pkgs/applications/science/biology/platypus/default.nix b/pkgs/applications/science/biology/platypus/default.nix
index 6907c6e3ec82e..30e45d5af0ecb 100644
--- a/pkgs/applications/science/biology/platypus/default.nix
+++ b/pkgs/applications/science/biology/platypus/default.nix
@@ -31,7 +31,7 @@ in stdenv.mkDerivation {
   meta = with stdenv.lib; {
     description = "The Platypus variant caller";
     license = licenses.gpl3;
-    homepage = https://github.com/andyrimmer/Platypus;
+    homepage = "https://github.com/andyrimmer/Platypus";
     maintainers = with maintainers; [ jbedo ];
     platforms = platforms.x86_64;
   };
diff --git a/pkgs/applications/science/biology/plink-ng/default.nix b/pkgs/applications/science/biology/plink-ng/default.nix
index 52f8f70b7796a..13f00c53fe642 100644
--- a/pkgs/applications/science/biology/plink-ng/default.nix
+++ b/pkgs/applications/science/biology/plink-ng/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A comprehensive update to the PLINK association analysis toolset";
-    homepage = https://www.cog-genomics.org/plink2;
+    homepage = "https://www.cog-genomics.org/plink2";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/science/biology/plink/default.nix b/pkgs/applications/science/biology/plink/default.nix
index cc48a0cb13a93..009e12aa02f0f 100644
--- a/pkgs/applications/science/biology/plink/default.nix
+++ b/pkgs/applications/science/biology/plink/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
   
   meta = {
     description = "Whole genome association toolkit";
-    homepage = http://pngu.mgh.harvard.edu/~purcell/plink/;
+    homepage = "http://pngu.mgh.harvard.edu/~purcell/plink/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.all;
     broken = true;
diff --git a/pkgs/applications/science/biology/poretools/default.nix b/pkgs/applications/science/biology/poretools/default.nix
index 4660a776ab219..a9f3fdb246726 100755
--- a/pkgs/applications/science/biology/poretools/default.nix
+++ b/pkgs/applications/science/biology/poretools/default.nix
@@ -16,7 +16,7 @@ pythonPackages.buildPythonPackage rec {
   meta = {
     description = "a toolkit for working with nanopore sequencing data from Oxford Nanopore";
     license = stdenv.lib.licenses.mit;
-    homepage = https://poretools.readthedocs.io/en/latest/;
+    homepage = "https://poretools.readthedocs.io/en/latest/";
     maintainers = [stdenv.lib.maintainers.rybern];
   };
 }
diff --git a/pkgs/applications/science/biology/prodigal/default.nix b/pkgs/applications/science/biology/prodigal/default.nix
index 653f4390488e2..ba51c93c38c25 100644
--- a/pkgs/applications/science/biology/prodigal/default.nix
+++ b/pkgs/applications/science/biology/prodigal/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   
   meta = with stdenv.lib; {
     description = "Fast, reliable protein-coding gene prediction for prokaryotic genomes";
-    homepage = https://github.com/hyattpd/Prodigal;
+    homepage = "https://github.com/hyattpd/Prodigal";
     license = licenses.gpl3;
     platforms = platforms.all;
     maintainers = with maintainers; [ luispedro ];
diff --git a/pkgs/applications/science/biology/raxml/default.nix b/pkgs/applications/science/biology/raxml/default.nix
index d7ee54bfbcf03..5c7353af9315c 100644
--- a/pkgs/applications/science/biology/raxml/default.nix
+++ b/pkgs/applications/science/biology/raxml/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A tool for Phylogenetic Analysis and Post-Analysis of Large Phylogenies";
     license = licenses.gpl3;
-    homepage = https://sco.h-its.org/exelixis/web/software/raxml/;
+    homepage = "https://sco.h-its.org/exelixis/web/software/raxml/";
     maintainers = [ maintainers.unode ];
     platforms = [ "i686-linux" "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/biology/samtools/default.nix b/pkgs/applications/science/biology/samtools/default.nix
index f2c5e9f25beba..e750eea89ac9f 100644
--- a/pkgs/applications/science/biology/samtools/default.nix
+++ b/pkgs/applications/science/biology/samtools/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Tools for manipulating SAM/BAM/CRAM format";
     license = licenses.mit;
-    homepage = http://www.htslib.org/;
+    homepage = "http://www.htslib.org/";
     platforms = platforms.unix;
     maintainers = [ maintainers.mimame ];
   };
diff --git a/pkgs/applications/science/biology/samtools/samtools_0_1_19.nix b/pkgs/applications/science/biology/samtools/samtools_0_1_19.nix
index 72d125ef8b6f3..d62c2a1fe7b1a 100644
--- a/pkgs/applications/science/biology/samtools/samtools_0_1_19.nix
+++ b/pkgs/applications/science/biology/samtools/samtools_0_1_19.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Tools for manipulating SAM/BAM/CRAM format";
     license = licenses.mit;
-    homepage = http://samtools.sourceforge.net/;
+    homepage = "http://samtools.sourceforge.net/";
     platforms = platforms.unix;
     maintainers = [ maintainers.unode ];
   };
diff --git a/pkgs/applications/science/biology/snpeff/default.nix b/pkgs/applications/science/biology/snpeff/default.nix
index d700ee50a9c6b..c68fcfada3325 100644
--- a/pkgs/applications/science/biology/snpeff/default.nix
+++ b/pkgs/applications/science/biology/snpeff/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Genetic variant annotation and effect prediction toolbox.";
     license = licenses.lgpl3;
-    homepage = http://snpeff.sourceforge.net/;
+    homepage = "http://snpeff.sourceforge.net/";
     maintainers = with maintainers; [ jbedo ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/science/biology/somatic-sniper/default.nix b/pkgs/applications/science/biology/somatic-sniper/default.nix
index 1961c71f43bb0..17d9c3dbb55cd 100644
--- a/pkgs/applications/science/biology/somatic-sniper/default.nix
+++ b/pkgs/applications/science/biology/somatic-sniper/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Identify single nucleotide positions that are different between tumor and normal";
     license = licenses.mit;
-    homepage = https://github.com/genome/somatic-sniper;
+    homepage = "https://github.com/genome/somatic-sniper";
     maintainers = with maintainers; [ jbedo ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/science/biology/sortmerna/default.nix b/pkgs/applications/science/biology/sortmerna/default.nix
index 4adce4461ede6..1f291d1a7008d 100644
--- a/pkgs/applications/science/biology/sortmerna/default.nix
+++ b/pkgs/applications/science/biology/sortmerna/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
     description = "Tools for filtering, mapping, and OTU-picking from shotgun genomics data";
     license = licenses.lgpl3;
     platforms = platforms.x86_64;
-    homepage = https://bioinfo.lifl.fr/RNA/sortmerna/;
+    homepage = "https://bioinfo.lifl.fr/RNA/sortmerna/";
     maintainers = with maintainers; [ luispedro ];
   };
 }
diff --git a/pkgs/applications/science/biology/strelka/default.nix b/pkgs/applications/science/biology/strelka/default.nix
index 184dcb48a0de0..a32eddcb1cd93 100644
--- a/pkgs/applications/science/biology/strelka/default.nix
+++ b/pkgs/applications/science/biology/strelka/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Germline and small variant caller";
     license = licenses.gpl3;
-    homepage = https://github.com/Illumina/strelka;
+    homepage = "https://github.com/Illumina/strelka";
     maintainers = with maintainers; [ jbedo ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/biology/sumatools/default.nix b/pkgs/applications/science/biology/sumatools/default.nix
index 5230fcd2eb62f..1e3b479d54fc7 100644
--- a/pkgs/applications/science/biology/sumatools/default.nix
+++ b/pkgs/applications/science/biology/sumatools/default.nix
@@ -4,7 +4,7 @@ let
   stdenv = gccStdenv;
   meta = with stdenv.lib; {
     description = "Fast and exact comparison and clustering of sequences";
-    homepage = https://metabarcoding.org/sumatra;
+    homepage = "https://metabarcoding.org/sumatra";
     maintainers = [ maintainers.bzizou ];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/science/biology/trimal/default.nix b/pkgs/applications/science/biology/trimal/default.nix
index d4e8fee7bc364..8d7e62b614316 100755
--- a/pkgs/applications/science/biology/trimal/default.nix
+++ b/pkgs/applications/science/biology/trimal/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
     description = "A tool for the automated removal of spurious sequences or poorly aligned regions from a multiple sequence alignment";
     license = licenses.gpl3;
     platforms = platforms.linux;
-    homepage = http://trimal.cgenomics.org;
+    homepage = "http://trimal.cgenomics.org";
     maintainers = [ maintainers.bzizou ];
   };
 }
diff --git a/pkgs/applications/science/biology/varscan/default.nix b/pkgs/applications/science/biology/varscan/default.nix
index 697a444193b11..e97c8f14451f7 100644
--- a/pkgs/applications/science/biology/varscan/default.nix
+++ b/pkgs/applications/science/biology/varscan/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
     # through the Office of Technology Management at Washington
     # University School of Medicine.
     license = licenses.unfree;
-    homepage = https://github.com/dkoboldt/varscan;
+    homepage = "https://github.com/dkoboldt/varscan";
     maintainers = with maintainers; [ jbedo ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/science/biology/vcftools/default.nix b/pkgs/applications/science/biology/vcftools/default.nix
index f6c9ad029c135..52957b58bc929 100755
--- a/pkgs/applications/science/biology/vcftools/default.nix
+++ b/pkgs/applications/science/biology/vcftools/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
     description = "A set of tools written in Perl and C++ for working with VCF files, such as those generated by the 1000 Genomes Project";
     license = licenses.lgpl3;
     platforms = platforms.linux;
-    homepage = https://vcftools.github.io/index.html;
+    homepage = "https://vcftools.github.io/index.html";
     maintainers = [ maintainers.rybern ];
   };
 }
diff --git a/pkgs/applications/science/chemistry/avogadro/default.nix b/pkgs/applications/science/chemistry/avogadro/default.nix
index 6aca678480dae..96dea10333b34 100644
--- a/pkgs/applications/science/chemistry/avogadro/default.nix
+++ b/pkgs/applications/science/chemistry/avogadro/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     (fetchurl {
-      url = https://data.gpo.zugaina.org/fusion809/sci-chemistry/avogadro/files/avogadro-1.1.0-xlibs.patch;
+      url = "https://data.gpo.zugaina.org/fusion809/sci-chemistry/avogadro/files/avogadro-1.1.0-xlibs.patch";
       sha256 = "1p113v19z3zwr9gxj2k599f8p97a8rwm93pa4amqvd0snn31mw0k";
     })
   ];
diff --git a/pkgs/applications/science/chemistry/gwyddion/default.nix b/pkgs/applications/science/chemistry/gwyddion/default.nix
index 644f609ed0acd..dec63910f7092 100644
--- a/pkgs/applications/science/chemistry/gwyddion/default.nix
+++ b/pkgs/applications/science/chemistry/gwyddion/default.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
   # it is disabled.
   patches = [ ./codegen.patch ];
   meta = {
-    homepage = http://gwyddion.net/;
+    homepage = "http://gwyddion.net/";
 
     description = "Scanning probe microscopy data visualization and analysis";
 
diff --git a/pkgs/applications/science/chemistry/jmol/default.nix b/pkgs/applications/science/chemistry/jmol/default.nix
index 7259705bc8048..f52621dd71af8 100644
--- a/pkgs/applications/science/chemistry/jmol/default.nix
+++ b/pkgs/applications/science/chemistry/jmol/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
      description = "A Java 3D viewer for chemical structures";
-     homepage = https://sourceforge.net/projects/jmol;
+     homepage = "https://sourceforge.net/projects/jmol";
      license = licenses.lgpl2;
      platforms = platforms.all;
      maintainers = with maintainers; [ timokau mounium ];
diff --git a/pkgs/applications/science/chemistry/molden/default.nix b/pkgs/applications/science/chemistry/molden/default.nix
index 87dae3b14d9e2..5e5df85a52795 100644
--- a/pkgs/applications/science/chemistry/molden/default.nix
+++ b/pkgs/applications/science/chemistry/molden/default.nix
@@ -31,10 +31,10 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
      description = "Display and manipulate molecular structures";
-     homepage = http://www.cmbi.ru.nl/molden/;
+     homepage = "http://www.cmbi.ru.nl/molden/";
      license = {
        fullName = "Free for academic/non-profit use";
-       url = http://www.cmbi.ru.nl/molden/CopyRight.html;
+       url = "http://www.cmbi.ru.nl/molden/CopyRight.html";
        free = false;
      };
      platforms = platforms.linux;
diff --git a/pkgs/applications/science/chemistry/octopus/default.nix b/pkgs/applications/science/chemistry/octopus/default.nix
index a5abbe2d1de6d..f8ce3e925fd9f 100644
--- a/pkgs/applications/science/chemistry/octopus/default.nix
+++ b/pkgs/applications/science/chemistry/octopus/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Real-space time dependent density-functional theory code";
-    homepage = https://octopus-code.org;
+    homepage = "https://octopus-code.org";
     maintainers = with maintainers; [ markuskowa ];
     license = licenses.gpl2;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/chemistry/openmolcas/default.nix b/pkgs/applications/science/chemistry/openmolcas/default.nix
index d73e86d2f577d..b1720e105fd11 100644
--- a/pkgs/applications/science/chemistry/openmolcas/default.nix
+++ b/pkgs/applications/science/chemistry/openmolcas/default.nix
@@ -74,7 +74,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Advanced quantum chemistry software package";
-    homepage = https://gitlab.com/Molcas/OpenMolcas;
+    homepage = "https://gitlab.com/Molcas/OpenMolcas";
     maintainers = [ maintainers.markuskowa ];
     license = licenses.lgpl21;
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/chemistry/pymol/default.nix b/pkgs/applications/science/chemistry/pymol/default.nix
index e8b3b23ddd9df..474986901225a 100644
--- a/pkgs/applications/science/chemistry/pymol/default.nix
+++ b/pkgs/applications/science/chemistry/pymol/default.nix
@@ -50,7 +50,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with lib; {
     description = description;
-    homepage = https://www.pymol.org/;
+    homepage = "https://www.pymol.org/";
     license = licenses.mit;
     maintainers = with maintainers; [ samlich ];
   };
diff --git a/pkgs/applications/science/chemistry/siesta/default.nix b/pkgs/applications/science/chemistry/siesta/default.nix
index 9d7880f57df5a..11f3e551431af 100644
--- a/pkgs/applications/science/chemistry/siesta/default.nix
+++ b/pkgs/applications/science/chemistry/siesta/default.nix
@@ -61,7 +61,7 @@ stdenv.mkDerivation {
          matching the quality of other approaches, such as plane-wave
          and all-electron methods.
       '';
-    homepage = https://www.quantum-espresso.org/;
+    homepage = "https://www.quantum-espresso.org/";
     license = licenses.gpl2;
     platforms = [ "x86_64-linux" ];
     maintainers = [ maintainers.costrouc ];
diff --git a/pkgs/applications/science/electronics/adms/default.nix b/pkgs/applications/science/electronics/adms/default.nix
index 8b95e73b8913b..f55dd2f0528e7 100644
--- a/pkgs/applications/science/electronics/adms/default.nix
+++ b/pkgs/applications/science/electronics/adms/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "automatic device model synthesizer";
-    homepage = https://github.com/Qucs/adms;
+    homepage = "https://github.com/Qucs/adms";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [disassembler];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/science/electronics/alliance/default.nix b/pkgs/applications/science/electronics/alliance/default.nix
index c863fe6aea856..861f6cea0b4b3 100644
--- a/pkgs/applications/science/electronics/alliance/default.nix
+++ b/pkgs/applications/science/electronics/alliance/default.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Complete set of free CAD tools and portable libraries for VLSI design";
-    homepage = http://www-asim.lip6.fr/recherche/alliance/;
+    homepage = "http://www-asim.lip6.fr/recherche/alliance/";
     license = with licenses; gpl2Plus;
     maintainers = with maintainers; [ ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/science/electronics/archimedes/default.nix b/pkgs/applications/science/electronics/archimedes/default.nix
index 016760bde0204..1377231c152b6 100644
--- a/pkgs/applications/science/electronics/archimedes/default.nix
+++ b/pkgs/applications/science/electronics/archimedes/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "GNU package for semiconductor device simulations";
-    homepage = https://www.gnu.org/software/archimedes;
+    homepage = "https://www.gnu.org/software/archimedes";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = with stdenv.lib.platforms; linux;
   };
diff --git a/pkgs/applications/science/electronics/bitscope/common.nix b/pkgs/applications/science/electronics/bitscope/common.nix
index 9101f1fdbe5e1..acbdeb8cfaa2f 100644
--- a/pkgs/applications/science/electronics/bitscope/common.nix
+++ b/pkgs/applications/science/electronics/bitscope/common.nix
@@ -23,7 +23,7 @@ let
     name = "${toolName}-${version}";
 
     meta = with stdenv.lib; {
-      homepage = http://bitscope.com/software/;
+      homepage = "http://bitscope.com/software/";
       license = licenses.unfree;
       platforms = [ "x86_64-linux" ];
       maintainers = with maintainers; [
diff --git a/pkgs/applications/science/electronics/caneda/default.nix b/pkgs/applications/science/electronics/caneda/default.nix
index ff41a498ae71e..6f832013e8ca2 100644
--- a/pkgs/applications/science/electronics/caneda/default.nix
+++ b/pkgs/applications/science/electronics/caneda/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Open source EDA software focused on easy of use and portability";
-    homepage = http://caneda.org;
+    homepage = "http://caneda.org";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/science/electronics/dsview/default.nix b/pkgs/applications/science/electronics/dsview/default.nix
index 1e125964d506e..4d3acb331d5da 100644
--- a/pkgs/applications/science/electronics/dsview/default.nix
+++ b/pkgs/applications/science/electronics/dsview/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A GUI program for supporting various instruments from DreamSourceLab, including logic analyzer, oscilloscope, etc";
-    homepage = https://www.dreamsourcelab.com/;
+    homepage = "https://www.dreamsourcelab.com/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.bachp ];
diff --git a/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix b/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix
index f5f3ce7435a4a..7915cb0ba4ae7 100644
--- a/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix
+++ b/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A fork of the sigrok library for usage with DSView";
-    homepage = https://www.dreamsourcelab.com/;
+    homepage = "https://www.dreamsourcelab.com/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.bachp ];
diff --git a/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix b/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix
index b7fe5140864c9..72b2fa1b6854f 100644
--- a/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix
+++ b/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A fork of the sigrokdecode library for usage with DSView";
-    homepage = https://www.dreamsourcelab.com/;
+    homepage = "https://www.dreamsourcelab.com/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.bachp ];
diff --git a/pkgs/applications/science/electronics/eagle/eagle7.nix b/pkgs/applications/science/electronics/eagle/eagle7.nix
index a9528b05a3119..af0fb675880ed 100644
--- a/pkgs/applications/science/electronics/eagle/eagle7.nix
+++ b/pkgs/applications/science/electronics/eagle/eagle7.nix
@@ -89,7 +89,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Schematic editor and PCB layout tool from CadSoft";
-    homepage = http://www.cadsoftusa.com/;
+    homepage = "http://www.cadsoftusa.com/";
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/science/electronics/fped/default.nix b/pkgs/applications/science/electronics/fped/default.nix
index f93fddba8cb5d..9ef47ae263463 100644
--- a/pkgs/applications/science/electronics/fped/default.nix
+++ b/pkgs/applications/science/electronics/fped/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "An editor that allows the interactive creation of footprints electronic components";
-    homepage = http://projects.qi-hardware.com/index.php/p/fped/;
+    homepage = "http://projects.qi-hardware.com/index.php/p/fped/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ expipiplus1 ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/electronics/fritzing/default.nix b/pkgs/applications/science/electronics/fritzing/default.nix
index 127e9c05624d9..a0442db7fed28 100644
--- a/pkgs/applications/science/electronics/fritzing/default.nix
+++ b/pkgs/applications/science/electronics/fritzing/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An open source prototyping tool for Arduino-based projects";
-    homepage = http://fritzing.org/;
+    homepage = "http://fritzing.org/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.robberer ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/electronics/geda/default.nix b/pkgs/applications/science/electronics/geda/default.nix
index 1aaa5496ff37c..54ab7ec57e277 100644
--- a/pkgs/applications/science/electronics/geda/default.nix
+++ b/pkgs/applications/science/electronics/geda/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Full GPL'd suite of Electronic Design Automation tools";
-    homepage = http://www.geda-project.org/;
+    homepage = "http://www.geda-project.org/";
     maintainers = with maintainers; [ pjones ];
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/science/electronics/gerbv/default.nix b/pkgs/applications/science/electronics/gerbv/default.nix
index fa5bdbbebdb6e..b0317551df8dd 100644
--- a/pkgs/applications/science/electronics/gerbv/default.nix
+++ b/pkgs/applications/science/electronics/gerbv/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "2015-10-08";
 
   src = fetchgit {
-    url = git://git.geda-project.org/gerbv.git;
+    url = "git://git.geda-project.org/gerbv.git";
     rev = "76b8b67bfa10823ce98f1c4c3b49a2afcadf7659";
     sha256 = "00jn1xhf6kblxc5gac1wvk8zm12fy6sk81nj3jwdag0z6wk3z446";
   };
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A Gerber (RS-274X) viewer";
-    homepage = http://gerbv.geda-project.org/;
+    homepage = "http://gerbv.geda-project.org/";
     maintainers = with maintainers; [ mog ];
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/science/electronics/gtkwave/default.nix b/pkgs/applications/science/electronics/gtkwave/default.nix
index 694adc4d63497..3d75780936e15 100644
--- a/pkgs/applications/science/electronics/gtkwave/default.nix
+++ b/pkgs/applications/science/electronics/gtkwave/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "VCD/Waveform viewer for Unix and Win32";
-    homepage    = http://gtkwave.sourceforge.net;
+    homepage    = "http://gtkwave.sourceforge.net";
     license     = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ thoughtpolice ];
     platforms   = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/electronics/librepcb/default.nix b/pkgs/applications/science/electronics/librepcb/default.nix
index dacbd948241a6..7e0894fb337de 100644
--- a/pkgs/applications/science/electronics/librepcb/default.nix
+++ b/pkgs/applications/science/electronics/librepcb/default.nix
@@ -31,7 +31,7 @@ mkDerivation {
 
   meta = with lib; {
     description = "A free EDA software to develop printed circuit boards";
-    homepage = https://librepcb.org/;
+    homepage = "https://librepcb.org/";
     maintainers = with maintainers; [ luz ];
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/electronics/ngspice/default.nix b/pkgs/applications/science/electronics/ngspice/default.nix
index f044f1d88e7be..951e5f66f6eed 100644
--- a/pkgs/applications/science/electronics/ngspice/default.nix
+++ b/pkgs/applications/science/electronics/ngspice/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "The Next Generation Spice (Electronic Circuit Simulator)";
-    homepage = http://ngspice.sourceforge.net;
+    homepage = "http://ngspice.sourceforge.net";
     license = with licenses; [ "BSD" gpl2 ];
     maintainers = with maintainers; [ bgamari rongcuid ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/electronics/pcb/default.nix b/pkgs/applications/science/electronics/pcb/default.nix
index 636c494c3409c..4309f52e8b150 100644
--- a/pkgs/applications/science/electronics/pcb/default.nix
+++ b/pkgs/applications/science/electronics/pcb/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Printed Circuit Board editor";
-    homepage = http://pcb.geda-project.org/;
+    homepage = "http://pcb.geda-project.org/";
     maintainers = with maintainers; [ mog ];
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/science/electronics/pulseview/default.nix b/pkgs/applications/science/electronics/pulseview/default.nix
index ae9afd95518bf..f43717389b535 100644
--- a/pkgs/applications/science/electronics/pulseview/default.nix
+++ b/pkgs/applications/science/electronics/pulseview/default.nix
@@ -22,7 +22,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Qt-based LA/scope/MSO GUI for sigrok (a signal analysis software suite)";
-    homepage = https://sigrok.org/;
+    homepage = "https://sigrok.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ bjornfor ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/electronics/qfsm/default.nix b/pkgs/applications/science/electronics/qfsm/default.nix
index 6ca3f80cefd37..9b6e75c77ba85 100644
--- a/pkgs/applications/science/electronics/qfsm/default.nix
+++ b/pkgs/applications/science/electronics/qfsm/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Graphical editor for finite state machines";
-    homepage = http://qfsm.sourceforge.net/;
+    homepage = "http://qfsm.sourceforge.net/";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/science/electronics/qucs/default.nix b/pkgs/applications/science/electronics/qucs/default.nix
index 1bfe6df5ff534..62a9ae8b73bee 100644
--- a/pkgs/applications/science/electronics/qucs/default.nix
+++ b/pkgs/applications/science/electronics/qucs/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Integrated circuit simulator";
-    homepage = http://qucs.sourceforge.net;
+    homepage = "http://qucs.sourceforge.net";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/science/electronics/tkgate/1.x.nix b/pkgs/applications/science/electronics/tkgate/1.x.nix
index 2c346b0e74a07..e6f912616034a 100644
--- a/pkgs/applications/science/electronics/tkgate/1.x.nix
+++ b/pkgs/applications/science/electronics/tkgate/1.x.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Event driven digital circuit simulator with a TCL/TK-based graphical editor";
-    homepage = http://www.tkgate.org/;
+    homepage = "http://www.tkgate.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.peti ];
     hydraPlatforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/electronics/verilog/default.nix b/pkgs/applications/science/electronics/verilog/default.nix
index b707db1416023..fa1efe299829e 100644
--- a/pkgs/applications/science/electronics/verilog/default.nix
+++ b/pkgs/applications/science/electronics/verilog/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Icarus Verilog compiler";
-    repositories.git = https://github.com/steveicarus/iverilog.git;
+    repositories.git = "https://github.com/steveicarus/iverilog.git";
     homepage = "http://iverilog.icarus.com/";
     license = licenses.lgpl21;
     maintainers = with maintainers; [ winden ];
diff --git a/pkgs/applications/science/electronics/xcircuit/default.nix b/pkgs/applications/science/electronics/xcircuit/default.nix
index d10b486492e0b..52fe9b0374143 100644
--- a/pkgs/applications/science/electronics/xcircuit/default.nix
+++ b/pkgs/applications/science/electronics/xcircuit/default.nix
@@ -27,7 +27,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Generic drawing program tailored to circuit diagrams";
-    homepage = http://opencircuitdesign.com/xcircuit;
+    homepage = "http://opencircuitdesign.com/xcircuit";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ spacefrogg thoughtpolice ];
diff --git a/pkgs/applications/science/electronics/xoscope/default.nix b/pkgs/applications/science/electronics/xoscope/default.nix
index 829caacb55cb3..f8a68f31f4641 100644
--- a/pkgs/applications/science/electronics/xoscope/default.nix
+++ b/pkgs/applications/science/electronics/xoscope/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Oscilloscope through the sound card";
-    homepage = http://xoscope.sourceforge.net;
+    homepage = "http://xoscope.sourceforge.net";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/science/geometry/drgeo/default.nix b/pkgs/applications/science/geometry/drgeo/default.nix
index e8ae4d01a6d6a..7bae3d414cbf9 100644
--- a/pkgs/applications/science/geometry/drgeo/default.nix
+++ b/pkgs/applications/science/geometry/drgeo/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Interactive geometry program";
-    homepage = https://sourceforge.net/projects/ofset;
+    homepage = "https://sourceforge.net/projects/ofset";
     license = licenses.gpl2;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/science/geometry/tetgen/1.4.nix b/pkgs/applications/science/geometry/tetgen/1.4.nix
index 3a2dbf180ee31..9dd2547368345 100644
--- a/pkgs/applications/science/geometry/tetgen/1.4.nix
+++ b/pkgs/applications/science/geometry/tetgen/1.4.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Quality Tetrahedral Mesh Generator and 3D Delaunay Triangulator";
-    homepage = http://tetgen.org/;
+    homepage = "http://tetgen.org/";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/science/geometry/tetgen/default.nix b/pkgs/applications/science/geometry/tetgen/default.nix
index 0d3a7cc2bc23a..d12e8e35844fe 100644
--- a/pkgs/applications/science/geometry/tetgen/default.nix
+++ b/pkgs/applications/science/geometry/tetgen/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
   meta = {
     inherit version;
     description = "Quality Tetrahedral Mesh Generator and 3D Delaunay Triangulator";
-    homepage = http://tetgen.org/;
+    homepage = "http://tetgen.org/";
     license = stdenv.lib.licenses.agpl3Plus;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/science/logic/abella/default.nix b/pkgs/applications/science/logic/abella/default.nix
index 7078fd454a0af..3d9a2e9bd67b0 100644
--- a/pkgs/applications/science/logic/abella/default.nix
+++ b/pkgs/applications/science/logic/abella/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
       of programming languages and other logical systems which manipulate
       objects with binding.
     '';
-    homepage = http://abella-prover.org/;
+    homepage = "http://abella-prover.org/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ bcdarwin ciil ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/acgtk/default.nix b/pkgs/applications/science/logic/acgtk/default.nix
index b7dc957124761..ccd0800050761 100644
--- a/pkgs/applications/science/logic/acgtk/default.nix
+++ b/pkgs/applications/science/logic/acgtk/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   version = "1.5.1";
 
   src = fetchurl {
-    url = https://acg.loria.fr/software/acg-1.5.1-20191113.tar.gz;
+    url = "https://acg.loria.fr/software/acg-1.5.1-20191113.tar.gz";
     sha256 = "17595qfwhzz5q091ak6i6bg5wlppbn8zfn58x3hmmmjvx2yfajn1";
   };
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   inherit (dune) installPhase;
 
   meta = with stdenv.lib; {
-    homepage = https://acg.loria.fr/;
+    homepage = "https://acg.loria.fr/";
     description = "A toolkit for developing ACG signatures and lexicon";
     license = licenses.cecill20;
     inherit (ocamlPackages.ocaml.meta) platforms;
diff --git a/pkgs/applications/science/logic/aiger/default.nix b/pkgs/applications/science/logic/aiger/default.nix
index 0f65c9b7eaea4..aa5a59ed298a1 100644
--- a/pkgs/applications/science/logic/aiger/default.nix
+++ b/pkgs/applications/science/logic/aiger/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "And-Inverter Graph (AIG) utilities";
-    homepage    = http://fmv.jku.at/aiger/;
+    homepage    = "http://fmv.jku.at/aiger/";
     license     = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ thoughtpolice ];
     platforms   = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/aspino/default.nix b/pkgs/applications/science/logic/aspino/default.nix
index 82458d7c5663c..c1cf9034c02a3 100644
--- a/pkgs/applications/science/logic/aspino/default.nix
+++ b/pkgs/applications/science/logic/aspino/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation {
     maintainers = with maintainers; [ gebner ];
     platforms = platforms.unix;
     license = licenses.asl20;
-    homepage = https://alviano.net/software/maxino/;
+    homepage = "https://alviano.net/software/maxino/";
     # See pkgs/applications/science/logic/glucose/default.nix
     badPlatforms = [ "aarch64-linux" ];
   };
diff --git a/pkgs/applications/science/logic/avy/default.nix b/pkgs/applications/science/logic/avy/default.nix
index b43e0c6fbf1a6..78ed641a809a2 100644
--- a/pkgs/applications/science/logic/avy/default.nix
+++ b/pkgs/applications/science/logic/avy/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "AIGER model checking for Property Directed Reachability";
-    homepage    = https://arieg.bitbucket.io/avy/;
+    homepage    = "https://arieg.bitbucket.io/avy/";
     license     = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ thoughtpolice ];
     platforms   = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/logic/beluga/default.nix b/pkgs/applications/science/logic/beluga/default.nix
index da0e9bf1c1dd4..55cee9b7e17c1 100644
--- a/pkgs/applications/science/logic/beluga/default.nix
+++ b/pkgs/applications/science/logic/beluga/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A functional language for reasoning about formal systems";
-    homepage    = http://complogic.cs.mcgill.ca/beluga/;
+    homepage    = "http://complogic.cs.mcgill.ca/beluga/";
     license     = stdenv.lib.licenses.gpl3Plus;
     maintainers = [ stdenv.lib.maintainers.bcdarwin ];
     platforms   = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/boolector/default.nix b/pkgs/applications/science/logic/boolector/default.nix
index 4cf0b0f1ea1e2..105e911ed4fd1 100644
--- a/pkgs/applications/science/logic/boolector/default.nix
+++ b/pkgs/applications/science/logic/boolector/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An extremely fast SMT solver for bit-vectors and arrays";
-    homepage    = https://boolector.github.io;
+    homepage    = "https://boolector.github.io";
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ thoughtpolice ];
diff --git a/pkgs/applications/science/logic/cedille/default.nix b/pkgs/applications/science/logic/cedille/default.nix
index 4cef49788c044..2ac96df66a68d 100644
--- a/pkgs/applications/science/logic/cedille/default.nix
+++ b/pkgs/applications/science/logic/cedille/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An interactive theorem-prover and dependently typed programming language, based on extrinsic (aka Curry-style) type theory";
-    homepage = https://cedille.github.io/;
+    homepage = "https://cedille.github.io/";
     license = licenses.mit;
     maintainers = with maintainers; [ marsam mpickering ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/logic/celf/default.nix b/pkgs/applications/science/logic/celf/default.nix
index 708270f772fd2..9dc20a61a4d2c 100644
--- a/pkgs/applications/science/logic/celf/default.nix
+++ b/pkgs/applications/science/logic/celf/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Linear logic programming system";
-    homepage = https://github.com/clf/celf;
+    homepage = "https://github.com/clf/celf";
     license = licenses.gpl3;
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/logic/clprover/clprover.nix b/pkgs/applications/science/logic/clprover/clprover.nix
index 0319069660edd..e53bbe6883718 100644
--- a/pkgs/applications/science/logic/clprover/clprover.nix
+++ b/pkgs/applications/science/logic/clprover/clprover.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Resolution-based theorem prover for Coalition Logic implemented in C++";
-    homepage = http://cgi.csc.liv.ac.uk/~ullrich/CLProver++/;
+    homepage = "http://cgi.csc.liv.ac.uk/~ullrich/CLProver++/";
     license = licenses.gpl3; # Note that while the website states that it is GPLv2 but the file in the zip as well as the comments in the source state it is GPLv3
     maintainers = with maintainers; [ mgttlinger ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/logic/coq/default.nix b/pkgs/applications/science/logic/coq/default.nix
index 52a587ccb48bb..315900d42b9bf 100644
--- a/pkgs/applications/science/logic/coq/default.nix
+++ b/pkgs/applications/science/logic/coq/default.nix
@@ -161,7 +161,7 @@ self = stdenv.mkDerivation {
       together with an environment for semi-interactive development of
       machine-checked proofs.
     '';
-    homepage = http://coq.inria.fr;
+    homepage = "http://coq.inria.fr";
     license = licenses.lgpl21;
     branch = coq-version;
     maintainers = with maintainers; [ roconnor thoughtpolice vbgl Zimmi48 ];
diff --git a/pkgs/applications/science/logic/coq2html/default.nix b/pkgs/applications/science/logic/coq2html/default.nix
index bebf81b030d64..2e56eda893e92 100644
--- a/pkgs/applications/science/logic/coq2html/default.nix
+++ b/pkgs/applications/science/logic/coq2html/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
       initially hidden, but can be revealed one by one by clicking on the
       "Proof" keyword.
     '';
-    homepage = https://github.com/xavierleroy/coq2html;
+    homepage = "https://github.com/xavierleroy/coq2html";
     license = licenses.gpl2;
     maintainers = with maintainers; [ jwiegley ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/logic/cryptominisat/default.nix b/pkgs/applications/science/logic/cryptominisat/default.nix
index b4c4cb7c047d4..113c6307c40b1 100644
--- a/pkgs/applications/science/logic/cryptominisat/default.nix
+++ b/pkgs/applications/science/logic/cryptominisat/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An advanced SAT Solver";
-    homepage    = https://github.com/msoos/cryptominisat;
+    homepage    = "https://github.com/msoos/cryptominisat";
     license     = licenses.mit;
     maintainers = with maintainers; [ mic92 ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/science/logic/cubicle/default.nix b/pkgs/applications/science/logic/cubicle/default.nix
index d198de41f9b79..bfb6a57fb33a6 100644
--- a/pkgs/applications/science/logic/cubicle/default.nix
+++ b/pkgs/applications/science/logic/cubicle/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An open source model checker for verifying safety properties of array-based systems";
-    homepage = http://cubicle.lri.fr/;
+    homepage = "http://cubicle.lri.fr/";
     license = licenses.asl20;
     platforms = platforms.unix;
     maintainers = with maintainers; [ dwarfmaster ];
diff --git a/pkgs/applications/science/logic/cvc3/default.nix b/pkgs/applications/science/logic/cvc3/default.nix
index dfb04ad90e929..ff481fd7ab467 100644
--- a/pkgs/applications/science/logic/cvc3/default.nix
+++ b/pkgs/applications/science/logic/cvc3/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
       [ raskin ];
     platforms = platforms.linux;
     license = licenses.free;
-    homepage = http://www.cs.nyu.edu/acsys/cvc3/index.html;
+    homepage = "http://www.cs.nyu.edu/acsys/cvc3/index.html";
   };
   passthru = {
     updateInfo = {
diff --git a/pkgs/applications/science/logic/cvc4/default.nix b/pkgs/applications/science/logic/cvc4/default.nix
index c0c7a53ebd441..a6e9bc69a12c0 100644
--- a/pkgs/applications/science/logic/cvc4/default.nix
+++ b/pkgs/applications/science/logic/cvc4/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A high-performance theorem prover and SMT solver";
-    homepage    = http://cvc4.cs.stanford.edu/web/;
+    homepage    = "http://cvc4.cs.stanford.edu/web/";
     license     = licenses.gpl3;
     platforms   = platforms.unix;
     maintainers = with maintainers; [ vbgl thoughtpolice gebner ];
diff --git a/pkgs/applications/science/logic/drat-trim/default.nix b/pkgs/applications/science/logic/drat-trim/default.nix
index 4c4ea0f14ce1b..4099236e62800 100644
--- a/pkgs/applications/science/logic/drat-trim/default.nix
+++ b/pkgs/applications/science/logic/drat-trim/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation {
       competing SAT solvers' work when they claim that a SAT instance
       is unsatisfiable.
     '';
-    homepage = https://www.cs.utexas.edu/~marijn/drat-trim/;
+    homepage = "https://www.cs.utexas.edu/~marijn/drat-trim/";
     license = licenses.mit;
     maintainers = with maintainers; [ kini ];
     platforms = platforms.all;
diff --git a/pkgs/applications/science/logic/eprover/default.nix b/pkgs/applications/science/logic/eprover/default.nix
index 1b021f7160787..f19d7e35c3e35 100644
--- a/pkgs/applications/science/logic/eprover/default.nix
+++ b/pkgs/applications/science/logic/eprover/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Automated theorem prover for full first-order logic with equality";
-    homepage = http://www.eprover.org/;
+    homepage = "http://www.eprover.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ raskin gebner ];
     platforms = platforms.all;
diff --git a/pkgs/applications/science/logic/gappa/default.nix b/pkgs/applications/science/logic/gappa/default.nix
index 7522eb4790ed0..2ca1bcd309812 100644
--- a/pkgs/applications/science/logic/gappa/default.nix
+++ b/pkgs/applications/science/logic/gappa/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "gappa-1.3.5";
 
   src = fetchurl {
-    url = https://gforge.inria.fr/frs/download.php/file/38044/gappa-1.3.5.tar.gz;
+    url = "https://gforge.inria.fr/frs/download.php/file/38044/gappa-1.3.5.tar.gz";
     sha256 = "0q1wdiwqj6fsbifaayb1zkp20bz8a1my81sqjsail577jmzwi07w";
   };
 
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   installPhase = "./remake install";
 
   meta = {
-    homepage = http://gappa.gforge.inria.fr/;
+    homepage = "http://gappa.gforge.inria.fr/";
     description = "Verifying and formally proving properties on numerical programs dealing with floating-point or fixed-point arithmetic";
     license = with stdenv.lib.licenses; [ cecill20 gpl2 ];
     maintainers = with stdenv.lib.maintainers; [ vbgl ];
diff --git a/pkgs/applications/science/logic/hol/default.nix b/pkgs/applications/science/logic/hol/default.nix
index d6a1eb6cbf717..dbafee7d6000a 100644
--- a/pkgs/applications/science/logic/hol/default.nix
+++ b/pkgs/applications/science/logic/hol/default.nix
@@ -79,7 +79,7 @@ stdenv.mkDerivation {
       implementing combinations of deduction, execution and property
       checking.
     '';
-    homepage = http://hol.sourceforge.net/;
+    homepage = "http://hol.sourceforge.net/";
     license = licenses.bsd3;
     maintainers = with maintainers; [ mudri ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/science/logic/hol_light/default.nix b/pkgs/applications/science/logic/hol_light/default.nix
index 69ffb87e76704..9c3030517e327 100644
--- a/pkgs/applications/science/logic/hol_light/default.nix
+++ b/pkgs/applications/science/logic/hol_light/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   };
 
   patches = [(fetchpatch {
-    url = https://salsa.debian.org/ocaml-team/hol-light/-/raw/master/debian/patches/0004-Fix-compilation-with-camlp5-7.11.patch;
+    url = "https://salsa.debian.org/ocaml-team/hol-light/-/raw/master/debian/patches/0004-Fix-compilation-with-camlp5-7.11.patch";
     sha256 = "180qmxbrk3vb1ix7j77hcs8vsar91rs11s5mm8ir5352rz7ylicr";
   })];
 
@@ -47,7 +47,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Interactive theorem prover based on Higher-Order Logic";
-    homepage    = http://www.cl.cam.ac.uk/~jrh13/hol-light/;
+    homepage    = "http://www.cl.cam.ac.uk/~jrh13/hol-light/";
     license     = licenses.bsd2;
     platforms   = platforms.unix;
     maintainers = with maintainers; [ thoughtpolice maggesi vbgl ];
diff --git a/pkgs/applications/science/logic/iprover/default.nix b/pkgs/applications/science/logic/iprover/default.nix
index c4eb22a7c0306..310a95d7e7a60 100644
--- a/pkgs/applications/science/logic/iprover/default.nix
+++ b/pkgs/applications/science/logic/iprover/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An automated first-order logic theorem prover";
-    homepage = http://www.cs.man.ac.uk/~korovink/iprover/;
+    homepage = "http://www.cs.man.ac.uk/~korovink/iprover/";
     maintainers = with maintainers; [ raskin gebner ];
     platforms = platforms.linux;
     license = licenses.gpl3;
diff --git a/pkgs/applications/science/logic/isabelle/default.nix b/pkgs/applications/science/logic/isabelle/default.nix
index 024f2f4e82943..d2e49d8178371 100644
--- a/pkgs/applications/science/logic/isabelle/default.nix
+++ b/pkgs/applications/science/logic/isabelle/default.nix
@@ -74,7 +74,7 @@ stdenv.mkDerivation rec {
       to be expressed in a formal language and provides tools for proving those
       formulas in a logical calculus.
     '';
-    homepage = http://isabelle.in.tum.de/;
+    homepage = "http://isabelle.in.tum.de/";
     license = "LGPL";
     maintainers = [ stdenv.lib.maintainers.jwiegley ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/logic/jonprl/default.nix b/pkgs/applications/science/logic/jonprl/default.nix
index e503836098f19..3ee05a478bc2e 100644
--- a/pkgs/applications/science/logic/jonprl/default.nix
+++ b/pkgs/applications/science/logic/jonprl/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       based on Brouwer-realizability & meaning explanations.
       Inspired by Nuprl
     '';
-    homepage = https://github.com/jonsterling/JonPRL;
+    homepage = "https://github.com/jonsterling/JonPRL";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ puffnfresh ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/logic/leo2/default.nix b/pkgs/applications/science/logic/leo2/default.nix
index b50848a18205a..b43bfb8013582 100644
--- a/pkgs/applications/science/logic/leo2/default.nix
+++ b/pkgs/applications/science/logic/leo2/default.nix
@@ -32,6 +32,6 @@ stdenv.mkDerivation rec {
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
     license = licenses.bsd3;
-    homepage = http://www.leoprover.org/;
+    homepage = "http://www.leoprover.org/";
   };
 }
diff --git a/pkgs/applications/science/logic/lingeling/default.nix b/pkgs/applications/science/logic/lingeling/default.nix
index 94be89d4736ff..1805f6cdcc891 100644
--- a/pkgs/applications/science/logic/lingeling/default.nix
+++ b/pkgs/applications/science/logic/lingeling/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Fast SAT solver";
-    homepage    = http://fmv.jku.at/lingeling/;
+    homepage    = "http://fmv.jku.at/lingeling/";
     license     = licenses.mit;
     platforms   = platforms.unix;
     maintainers = with maintainers; [ thoughtpolice ];
diff --git a/pkgs/applications/science/logic/logisim/default.nix b/pkgs/applications/science/logic/logisim/default.nix
index d6a1207b5d609..ce86b25231166 100644
--- a/pkgs/applications/science/logic/logisim/default.nix
+++ b/pkgs/applications/science/logic/logisim/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   '';
   
   meta = {
-    homepage = http://ozark.hendrix.edu/~burch/logisim;
+    homepage = "http://ozark.hendrix.edu/~burch/logisim";
     description = "Educational tool for designing and simulating digital logic circuits";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/mcrl2/default.nix b/pkgs/applications/science/logic/mcrl2/default.nix
index a479e31e33955..eb83eaf79c55d 100644
--- a/pkgs/applications/science/logic/mcrl2/default.nix
+++ b/pkgs/applications/science/logic/mcrl2/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
       that can be used for modelling, validation and verification of
       concurrent systems and protocols
     '';
-    homepage = https://www.mcrl2.org/;
+    homepage = "https://www.mcrl2.org/";
     license = licenses.boost;
     maintainers = with maintainers; [ moretea ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/logic/metis-prover/default.nix b/pkgs/applications/science/logic/metis-prover/default.nix
index ed1218c401b32..5755abfd90788 100644
--- a/pkgs/applications/science/logic/metis-prover/default.nix
+++ b/pkgs/applications/science/logic/metis-prover/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Automatic theorem prover for first-order logic with equality";
-    homepage = http://www.gilith.com/research/metis/;
+    homepage = "http://www.gilith.com/research/metis/";
     license = licenses.mit;
     maintainers = with maintainers; [ gebner ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/logic/minisat/default.nix b/pkgs/applications/science/logic/minisat/default.nix
index 6b642832b83fd..df1800e6c31b0 100644
--- a/pkgs/applications/science/logic/minisat/default.nix
+++ b/pkgs/applications/science/logic/minisat/default.nix
@@ -19,6 +19,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ gebner raskin ];
     platforms = platforms.unix;
     license = licenses.mit;
-    homepage = http://minisat.se/;
+    homepage = "http://minisat.se/";
   };
 }
diff --git a/pkgs/applications/science/logic/monosat/default.nix b/pkgs/applications/science/logic/monosat/default.nix
index ba0e787af7216..63440213920ce 100644
--- a/pkgs/applications/science/logic/monosat/default.nix
+++ b/pkgs/applications/science/logic/monosat/default.nix
@@ -23,7 +23,7 @@ let
   patches = [
     # Python 3.8 compatibility
     (fetchpatch {
-      url = https://github.com/sambayless/monosat/commit/a5079711d0df0451f9840f3a41248e56dbb03967.patch;
+      url = "https://github.com/sambayless/monosat/commit/a5079711d0df0451f9840f3a41248e56dbb03967.patch";
       sha256 = "1p2y0jw8hb9c90nbffhn86k1dxd6f6hk5v70dfmpzka3y6g1ksal";
     })
   ];
@@ -50,7 +50,7 @@ let
       description = "SMT solver for Monotonic Theories";
       platforms   = platforms.unix;
       license     = if includeGplCode then licenses.gpl2 else licenses.mit;
-      homepage    = https://github.com/sambayless/monosat;
+      homepage    = "https://github.com/sambayless/monosat";
       maintainers = [ maintainers.acairncross ];
     };
   };
diff --git a/pkgs/applications/science/logic/open-wbo/default.nix b/pkgs/applications/science/logic/open-wbo/default.nix
index 32ce9fde0c312..c314127e74bfe 100644
--- a/pkgs/applications/science/logic/open-wbo/default.nix
+++ b/pkgs/applications/science/logic/open-wbo/default.nix
@@ -22,6 +22,6 @@ stdenv.mkDerivation {
     maintainers = with maintainers; [ gebner ];
     platforms = platforms.unix;
     license = licenses.mit;
-    homepage = http://sat.inesc-id.pt/open-wbo/;
+    homepage = "http://sat.inesc-id.pt/open-wbo/";
   };
 }
diff --git a/pkgs/applications/science/logic/opensmt/default.nix b/pkgs/applications/science/logic/opensmt/default.nix
index 9e5ebe008b8f3..03b3ce4ff0b77 100644
--- a/pkgs/applications/science/logic/opensmt/default.nix
+++ b/pkgs/applications/science/logic/opensmt/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
     license = licenses.gpl3;
-    homepage = http://code.google.com/p/opensmt/;
+    homepage = "http://code.google.com/p/opensmt/";
     broken = true;
     downloadPage = "http://code.google.com/p/opensmt/downloads/list";
   };
diff --git a/pkgs/applications/science/logic/ott/default.nix b/pkgs/applications/science/logic/ott/default.nix
index fa7c3dd5e95f2..fa2ad9c4abc42 100644
--- a/pkgs/applications/science/logic/ott/default.nix
+++ b/pkgs/applications/science/logic/ott/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
       terms of the defined language, parsing them and replacing them by
       target-system terms.
     '';
-    homepage = http://www.cl.cam.ac.uk/~pes20/ott;
+    homepage = "http://www.cl.cam.ac.uk/~pes20/ott";
     license = stdenv.lib.licenses.bsd3;
     maintainers = with stdenv.lib.maintainers; [ jwiegley ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/picosat/default.nix b/pkgs/applications/science/logic/picosat/default.nix
index 547bd31e8b429..b13d871580c56 100644
--- a/pkgs/applications/science/logic/picosat/default.nix
+++ b/pkgs/applications/science/logic/picosat/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "SAT solver with proof and core support";
-    homepage    = http://fmv.jku.at/picosat/;
+    homepage    = "http://fmv.jku.at/picosat/";
     license     = stdenv.lib.licenses.mit;
     platforms   = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ roconnor thoughtpolice ];
diff --git a/pkgs/applications/science/logic/prooftree/default.nix b/pkgs/applications/science/logic/prooftree/default.nix
index d4feb5c9e2855..98313e48cb271 100644
--- a/pkgs/applications/science/logic/prooftree/default.nix
+++ b/pkgs/applications/science/logic/prooftree/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
       below the tree (on single click) or in a separate window (on double or
       shift-click).
     '';
-    homepage = http://askra.de/software/prooftree;
+    homepage = "http://askra.de/software/prooftree";
     platforms = platforms.unix;
     maintainers = [ maintainers.jwiegley ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/science/logic/prover9/default.nix b/pkgs/applications/science/logic/prover9/default.nix
index 9528a5942a43b..fcdff8558483a 100644
--- a/pkgs/applications/science/logic/prover9/default.nix
+++ b/pkgs/applications/science/logic/prover9/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "prover9-2009-11a";
 
   src = fetchurl {
-    url = https://www.cs.unm.edu/~mccune/mace4/download/LADR-2009-11A.tar.gz;
+    url = "https://www.cs.unm.edu/~mccune/mace4/download/LADR-2009-11A.tar.gz";
     sha256 = "1l2i3d3h5z7nnbzilb6z92r0rbx0kh6yaxn2c5qhn3000xcfsay3";
   };
 
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://www.cs.unm.edu/~mccune/mace4/;
+    homepage = "https://www.cs.unm.edu/~mccune/mace4/";
     license = "GPL";
     description = "Automated theorem prover for first-order and equational logic";
     longDescription = ''
diff --git a/pkgs/applications/science/logic/redprl/default.nix b/pkgs/applications/science/logic/redprl/default.nix
index 9da2647d11384..49245c73f2c4f 100644
--- a/pkgs/applications/science/logic/redprl/default.nix
+++ b/pkgs/applications/science/logic/redprl/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   '';
   meta = {
     description = "A proof assistant for Nominal Computational Type Theory";
-    homepage = http://www.redprl.org/;
+    homepage = "http://www.redprl.org/";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.acowley ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/sad/default.nix b/pkgs/applications/science/logic/sad/default.nix
index 8e94356f376a0..f9b82b5d733bd 100644
--- a/pkgs/applications/science/logic/sad/default.nix
+++ b/pkgs/applications/science/logic/sad/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation {
       '';
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = [ stdenv.lib.maintainers.schmitthenner ];
-    homepage = http://nevidal.org/sad.en.html;
+    homepage = "http://nevidal.org/sad.en.html";
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/applications/science/logic/satallax/default.nix b/pkgs/applications/science/logic/satallax/default.nix
index d3ceeadbf9a7b..6c2b03b5b37d5 100644
--- a/pkgs/applications/science/logic/satallax/default.nix
+++ b/pkgs/applications/science/logic/satallax/default.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.linux;
     downloadPage = "http://www.ps.uni-saarland.de/~cebrown/satallax/downloads.php";
-    homepage = http://www.ps.uni-saarland.de/~cebrown/satallax/index.php;
+    homepage = "http://www.ps.uni-saarland.de/~cebrown/satallax/index.php";
     updateWalker = true;
   };
 }
diff --git a/pkgs/applications/science/logic/tamarin-prover/default.nix b/pkgs/applications/science/logic/tamarin-prover/default.nix
index 9b87b8c899e52..857aba5a26076 100644
--- a/pkgs/applications/science/logic/tamarin-prover/default.nix
+++ b/pkgs/applications/science/logic/tamarin-prover/default.nix
@@ -18,7 +18,7 @@ let
     inherit pname version src;
 
     license     = lib.licenses.gpl3;
-    homepage    = https://tamarin-prover.github.io;
+    homepage    = "https://tamarin-prover.github.io";
     description = "Security protocol verification in the symbolic model";
     maintainers = [ lib.maintainers.thoughtpolice ];
   };
diff --git a/pkgs/applications/science/logic/tlaplus/default.nix b/pkgs/applications/science/logic/tlaplus/default.nix
index b1c72d7c5ee75..3476b5ea9d90c 100644
--- a/pkgs/applications/science/logic/tlaplus/default.nix
+++ b/pkgs/applications/science/logic/tlaplus/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An algorithm specification language with model checking tools";
-    homepage    = http://lamport.azurewebsites.net/tla/tla.html;
+    homepage    = "http://lamport.azurewebsites.net/tla/tla.html";
     license     = stdenv.lib.licenses.mit;
     platforms   = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
diff --git a/pkgs/applications/science/logic/tlaplus/tlaps.nix b/pkgs/applications/science/logic/tlaplus/tlaps.nix
index 7c8389688d95d..cbca37ea53d16 100644
--- a/pkgs/applications/science/logic/tlaplus/tlaps.nix
+++ b/pkgs/applications/science/logic/tlaplus/tlaps.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
       and scalable to large system specifications. It provides a
       consistent abstraction over the various “backend” verifiers.
     '';
-    homepage    = https://tla.msr-inria.inria.fr/tlaps/content/Home.html;
+    homepage    = "https://tla.msr-inria.inria.fr/tlaps/content/Home.html";
     license     = stdenv.lib.licenses.bsd2;
     platforms   = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.badi ];
diff --git a/pkgs/applications/science/logic/tlaplus/toolbox.nix b/pkgs/applications/science/logic/tlaplus/toolbox.nix
index 91666e85d9235..f326d62f8f0b4 100644
--- a/pkgs/applications/science/logic/tlaplus/toolbox.nix
+++ b/pkgs/applications/science/logic/tlaplus/toolbox.nix
@@ -66,7 +66,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://research.microsoft.com/en-us/um/people/lamport/tla/toolbox.html;
+    homepage = "http://research.microsoft.com/en-us/um/people/lamport/tla/toolbox.html";
     description = "IDE for the TLA+ tools";
     longDescription = ''
       Integrated development environment for the TLA+ tools, based on Eclipse. You can use it
diff --git a/pkgs/applications/science/logic/twelf/default.nix b/pkgs/applications/science/logic/twelf/default.nix
index 161da6e4b2357..975b989bd94cb 100644
--- a/pkgs/applications/science/logic/twelf/default.nix
+++ b/pkgs/applications/science/logic/twelf/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
       a foundational proof-carrying-code system, and a type safety proof for
       Standard ML.
     '';
-    homepage = http://twelf.org/wiki/Main_Page;
+    homepage = "http://twelf.org/wiki/Main_Page";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ jwiegley ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/science/logic/vampire/default.nix b/pkgs/applications/science/logic/vampire/default.nix
index 42963fe5f9c6f..e5941a35fd596 100644
--- a/pkgs/applications/science/logic/vampire/default.nix
+++ b/pkgs/applications/science/logic/vampire/default.nix
@@ -19,19 +19,19 @@ stdenv.mkDerivation rec {
     # https://github.com/vprover/vampire/pull/54
     (fetchpatch {
       name = "fix-apple-cygwin-defines.patch";
-      url = https://github.com/vprover/vampire/pull/54.patch;
+      url = "https://github.com/vprover/vampire/pull/54.patch";
       sha256 = "0i6nrc50wlg1dqxq38lkpx4rmfb3lf7s8f95l4jkvqp0nxa20cza";
     })
     # https://github.com/vprover/vampire/pull/55
     (fetchpatch {
       name = "fix-wait-any.patch";
-      url = https://github.com/vprover/vampire/pull/55.patch;
+      url = "https://github.com/vprover/vampire/pull/55.patch";
       sha256 = "1pwfpwpl23bqsgkmmvw6bnniyvp5j9v8l3z9s9pllfabnfcrcz9l";
     })
     # https://github.com/vprover/vampire/pull/56
     (fetchpatch {
       name = "fenv.patch";
-      url = https://github.com/vprover/vampire/pull/56.patch;
+      url = "https://github.com/vprover/vampire/pull/56.patch";
       sha256 = "0xl3jcyqmk146mg3qj5hdd0pbja6wbq3250zmfhbxqrjh40mm40g";
     })
   ];
diff --git a/pkgs/applications/science/logic/verit/default.nix b/pkgs/applications/science/logic/verit/default.nix
index 2c68191b800e4..f20a832415714 100644
--- a/pkgs/applications/science/logic/verit/default.nix
+++ b/pkgs/applications/science/logic/verit/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An open, trustable and efficient SMT-solver";
-    homepage = http://www.verit-solver.org/;
+    homepage = "http://www.verit-solver.org/";
     license = licenses.bsd3;
     platforms = platforms.unix;
     maintainers = [ maintainers.gebner ];
diff --git a/pkgs/applications/science/logic/why3/default.nix b/pkgs/applications/science/logic/why3/default.nix
index e576446181962..51cb2a456c197 100644
--- a/pkgs/applications/science/logic/why3/default.nix
+++ b/pkgs/applications/science/logic/why3/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   version = "1.2.1";
 
   src = fetchurl {
-    url = https://gforge.inria.fr/frs/download.php/file/38185/why3-1.2.1.tar.gz;
+    url = "https://gforge.inria.fr/frs/download.php/file/38185/why3-1.2.1.tar.gz";
     sha256 = "014gkwisjp05x3342zxkryb729p02ngx1hcjjsrplpa53jzgz647";
   };
 
diff --git a/pkgs/applications/science/machine-learning/fasttext/default.nix b/pkgs/applications/science/machine-learning/fasttext/default.nix
index 0de54572862b2..2ae5e0eeddcd9 100644
--- a/pkgs/applications/science/machine-learning/fasttext/default.nix
+++ b/pkgs/applications/science/machine-learning/fasttext/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Library for text classification and representation learning";
-    homepage = https://fasttext.cc/;
+    homepage = "https://fasttext.cc/";
     license = licenses.mit;
     platforms = platforms.unix;
     maintainers = [ maintainers.danieldk ];
diff --git a/pkgs/applications/science/machine-learning/labelimg/default.nix b/pkgs/applications/science/machine-learning/labelimg/default.nix
index b1c89d299508e..a952fb559ce6a 100644
--- a/pkgs/applications/science/machine-learning/labelimg/default.nix
+++ b/pkgs/applications/science/machine-learning/labelimg/default.nix
@@ -18,7 +18,7 @@
     '';
     meta = with stdenv.lib; {
       description = "LabelImg is a graphical image annotation tool and label object bounding boxes in images";
-      homepage = https://github.com/tzutalin/labelImg;
+      homepage = "https://github.com/tzutalin/labelImg";
       license = licenses.mit;
       platforms = platforms.linux;
       maintainers = [ maintainers.cmcdragonkai ];
diff --git a/pkgs/applications/science/machine-learning/streamlit/default.nix b/pkgs/applications/science/machine-learning/streamlit/default.nix
index c7bdf0f12a404..3856b8ec841ac 100644
--- a/pkgs/applications/science/machine-learning/streamlit/default.nix
+++ b/pkgs/applications/science/machine-learning/streamlit/default.nix
@@ -25,7 +25,7 @@ buildPythonApplication rec {
   '';
 
   meta = with lib; {
-    homepage = https://streamlit.io/;
+    homepage = "https://streamlit.io/";
     description = "The fastest way to build custom ML tools";
     maintainers = with maintainers; [ yrashk ];
     license = licenses.asl20;
diff --git a/pkgs/applications/science/math/LiE/default.nix b/pkgs/applications/science/math/LiE/default.nix
index d59ec57c1a859..f5f3bb0a42b18 100644
--- a/pkgs/applications/science/math/LiE/default.nix
+++ b/pkgs/applications/science/math/LiE/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A Computer algebra package for Lie group computations";
-    homepage = http://wwwmathlabo.univ-poitiers.fr/~maavl/LiE/;
+    homepage = "http://wwwmathlabo.univ-poitiers.fr/~maavl/LiE/";
     license = stdenv.lib.licenses.lgpl3; # see the website
 
     longDescription = ''
diff --git a/pkgs/applications/science/math/almonds/default.nix b/pkgs/applications/science/math/almonds/default.nix
index b5d9632c551d0..9edb0747b31e4 100644
--- a/pkgs/applications/science/math/almonds/default.nix
+++ b/pkgs/applications/science/math/almonds/default.nix
@@ -19,7 +19,7 @@ with python3.pkgs; buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Terminal Mandelbrot fractal viewer";
-    homepage = https://github.com/Tenchi2xh/Almonds;
+    homepage = "https://github.com/Tenchi2xh/Almonds";
     license = licenses.mit;
     maintainers = with maintainers; [ infinisil ];
   };
diff --git a/pkgs/applications/science/math/bcal/default.nix b/pkgs/applications/science/math/bcal/default.nix
index 74adcab4e7059..18b6e051b3f26 100644
--- a/pkgs/applications/science/math/bcal/default.nix
+++ b/pkgs/applications/science/math/bcal/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Storage conversion and expression calculator";
-    homepage = https://github.com/jarun/bcal;
+    homepage = "https://github.com/jarun/bcal";
     license = licenses.gpl3;
     platforms = [ "aarch64-linux" "x86_64-darwin" "x86_64-linux" ];
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/science/math/bliss/default.nix b/pkgs/applications/science/math/bliss/default.nix
index 37504fceb1416..361b088466265 100644
--- a/pkgs/applications/science/math/bliss/default.nix
+++ b/pkgs/applications/science/math/bliss/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "bliss is an open source tool for computing automorphism groups and canonical forms of graphs. It has both a command line user interface as well as C++ and C programming language APIs.";
-    homepage = http://www.tcs.hut.fi/Software/bliss/;
+    homepage = "http://www.tcs.hut.fi/Software/bliss/";
     license = licenses.lgpl3;
     platforms = [ "i686-linux" "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/math/caffe/default.nix b/pkgs/applications/science/math/caffe/default.nix
index 5068abbf30767..ea87c4953eebb 100644
--- a/pkgs/applications/science/math/caffe/default.nix
+++ b/pkgs/applications/science/math/caffe/default.nix
@@ -134,7 +134,7 @@ stdenv.mkDerivation rec {
       modularity in mind. It is developed by the Berkeley Vision and Learning
       Center (BVLC) and by community contributors.
     '';
-    homepage = http://caffe.berkeleyvision.org/;
+    homepage = "http://caffe.berkeleyvision.org/";
     maintainers = with maintainers; [ jb55 ];
     license = licenses.bsd2;
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/science/math/calc/default.nix b/pkgs/applications/science/math/calc/default.nix
index 0d149eca3b631..8e50f48b286b4 100644
--- a/pkgs/applications/science/math/calc/default.nix
+++ b/pkgs/applications/science/math/calc/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "C-style arbitrary precision calculator";
-    homepage = http://www.isthe.com/chongo/tech/comp/calc/;
+    homepage = "http://www.isthe.com/chongo/tech/comp/calc/";
     license = licenses.lgpl21;
     maintainers = with maintainers; [ matthewbauer ];
     platforms = platforms.all;
diff --git a/pkgs/applications/science/math/cbc/default.nix b/pkgs/applications/science/math/cbc/default.nix
index e68ceb379b049..b75f3d3f78688 100644
--- a/pkgs/applications/science/math/cbc/default.nix
+++ b/pkgs/applications/science/math/cbc/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   # FIXME: move share/coin/Data to a separate output?
 
   meta = {
-    homepage = https://projects.coin-or.org/Cbc;
+    homepage = "https://projects.coin-or.org/Cbc";
     license = lib.licenses.epl10;
     maintainers = [ lib.maintainers.eelco ];
     platforms = lib.platforms.linux ++ lib.platforms.darwin;
diff --git a/pkgs/applications/science/math/cntk/default.nix b/pkgs/applications/science/math/cntk/default.nix
index ceb87b25ba85c..e2db40a402e0c 100644
--- a/pkgs/applications/science/math/cntk/default.nix
+++ b/pkgs/applications/science/math/cntk/default.nix
@@ -95,7 +95,7 @@ in stdenv.mkDerivation rec {
     # Newer cub is included with cudatoolkit now and it breaks the build.
     # https://github.com/Microsoft/CNTK/issues/3191
     broken = cudaSupport;
-    homepage = https://github.com/Microsoft/CNTK;
+    homepage = "https://github.com/Microsoft/CNTK";
     description = "An open source deep-learning toolkit";
     license = if onebitSGDSupport then licenses.unfreeRedistributable else licenses.mit;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/math/csdp/default.nix b/pkgs/applications/science/math/csdp/default.nix
index 9b402fe0ac941..eef60829f8e08 100644
--- a/pkgs/applications/science/math/csdp/default.nix
+++ b/pkgs/applications/science/math/csdp/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://projects.coin-or.org/Csdp;
+    homepage = "https://projects.coin-or.org/Csdp";
     license = lib.licenses.cpl10;
     maintainers = [ lib.maintainers.roconnor ];
     description = "A C Library for Semidefinite Programming";
diff --git a/pkgs/applications/science/math/ecm/default.nix b/pkgs/applications/science/math/ecm/default.nix
index 7b768f7077e70..3e8e5879950b2 100644
--- a/pkgs/applications/science/math/ecm/default.nix
+++ b/pkgs/applications/science/math/ecm/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Elliptic Curve Method for Integer Factorization";
     license = stdenv.lib.licenses.gpl2Plus;
-    homepage = http://ecm.gforge.inria.fr/;
+    homepage = "http://ecm.gforge.inria.fr/";
     maintainers = [ stdenv.lib.maintainers.roconnor ];
     platforms = with stdenv.lib.platforms; linux ++ darwin;
   };
diff --git a/pkgs/applications/science/math/eukleides/default.nix b/pkgs/applications/science/math/eukleides/default.nix
index 6d1c778d1e0ee..879ad96a93675 100644
--- a/pkgs/applications/science/math/eukleides/default.nix
+++ b/pkgs/applications/science/math/eukleides/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Geometry Drawing Language";
-    homepage = http://www.eukleides.org/;
+    homepage = "http://www.eukleides.org/";
     license = stdenv.lib.licenses.gpl2;
 
     longDescription = ''
diff --git a/pkgs/applications/science/math/form/default.nix b/pkgs/applications/science/math/form/default.nix
index 0dbafebf2c06a..091372792901c 100644
--- a/pkgs/applications/science/math/form/default.nix
+++ b/pkgs/applications/science/math/form/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "The FORM project for symbolic manipulation of very big expressions";
-    homepage = https://www.nikhef.nl/~form/;
+    homepage = "https://www.nikhef.nl/~form/";
     license = licenses.gpl3;
     maintainers = [ maintainers.veprbl ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/math/fricas/default.nix b/pkgs/applications/science/math/fricas/default.nix
index 7d1f738641a6d..39ca53c47e6e6 100644
--- a/pkgs/applications/science/math/fricas/default.nix
+++ b/pkgs/applications/science/math/fricas/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
   dontStrip = true;
 
   meta = {
-    homepage = http://fricas.sourceforge.net/;
+    homepage = "http://fricas.sourceforge.net/";
     description = "An advanced computer algebra system";
     license = stdenv.lib.licenses.bsd3;
 
diff --git a/pkgs/applications/science/math/gap/default.nix b/pkgs/applications/science/math/gap/default.nix
index 7eb10d1f95250..87f4fa1203875 100644
--- a/pkgs/applications/science/math/gap/default.nix
+++ b/pkgs/applications/science/math/gap/default.nix
@@ -175,6 +175,6 @@ stdenv.mkDerivation rec {
     # is reasonable and that way the binary cache doesn't get overloaded.
     hydraPlatforms = lib.optionals (!keepAllPackages) meta.platforms;
     license = licenses.gpl2;
-    homepage = http://gap-system.org/;
+    homepage = "http://gap-system.org/";
   };
 }
diff --git a/pkgs/applications/science/math/geogebra/default.nix b/pkgs/applications/science/math/geogebra/default.nix
index bba26610a079a..1dd92267a837f 100644
--- a/pkgs/applications/science/math/geogebra/default.nix
+++ b/pkgs/applications/science/math/geogebra/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
       together geometry, algebra, spreadsheets, graphing, statistics and
       calculus in one easy-to-use package.
     '';
-    homepage = https://www.geogebra.org/;
+    homepage = "https://www.geogebra.org/";
     maintainers = with maintainers; [ ma27 ];
     license = with licenses; [ gpl3 cc-by-nc-sa-30 geogebra ];
     platforms = platforms.all;
diff --git a/pkgs/applications/science/math/gfan/default.nix b/pkgs/applications/science/math/gfan/default.nix
index 33b003b2b5625..72d1a548c530c 100644
--- a/pkgs/applications/science/math/gfan/default.nix
+++ b/pkgs/applications/science/math/gfan/default.nix
@@ -22,6 +22,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.gpl2 ;
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.unix;
-    homepage = http://home.math.au.dk/jensen/software/gfan/gfan.html;
+    homepage = "http://home.math.au.dk/jensen/software/gfan/gfan.html";
   };
 }
diff --git a/pkgs/applications/science/math/ginac/default.nix b/pkgs/applications/science/math/ginac/default.nix
index 79f20f06b2955..1e4fd6288ce32 100644
--- a/pkgs/applications/science/math/ginac/default.nix
+++ b/pkgs/applications/science/math/ginac/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GiNaC is Not a CAS";
-    homepage    = http://www.ginac.de/;
+    homepage    = "http://www.ginac.de/";
     maintainers = with maintainers; [ lovek323 ];
     license = licenses.gpl2;
     platforms   = platforms.all;
diff --git a/pkgs/applications/science/math/glsurf/default.nix b/pkgs/applications/science/math/glsurf/default.nix
index c11110e4bc499..09d0d5241687f 100644
--- a/pkgs/applications/science/math/glsurf/default.nix
+++ b/pkgs/applications/science/math/glsurf/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://raffalli.eu/~christophe/glsurf/;
+    homepage = "https://raffalli.eu/~christophe/glsurf/";
     description = "A program to draw implicit surfaces and curves";
     license = stdenv.lib.licenses.lgpl21;
   };
diff --git a/pkgs/applications/science/math/gurobi/default.nix b/pkgs/applications/science/math/gurobi/default.nix
index 4ac7c411c2dc2..1aa7bce07c5dc 100644
--- a/pkgs/applications/science/math/gurobi/default.nix
+++ b/pkgs/applications/science/math/gurobi/default.nix
@@ -50,7 +50,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Optimization solver for mathematical programming";
-    homepage = https://www.gurobi.com;
+    homepage = "https://www.gurobi.com";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/science/math/hmetis/default.nix b/pkgs/applications/science/math/hmetis/default.nix
index 45a13d0288949..b5e99a8dd75be 100644
--- a/pkgs/applications/science/math/hmetis/default.nix
+++ b/pkgs/applications/science/math/hmetis/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "hMETIS is a set of programs for partitioning hypergraphs";
-    homepage = http://glaros.dtc.umn.edu/gkhome/metis/hmetis/overview;
+    homepage = "http://glaros.dtc.umn.edu/gkhome/metis/hmetis/overview";
     license = licenses.unfree;
     platforms = [ "i686-linux" "x86_64-linux" ];
   };
diff --git a/pkgs/applications/science/math/jags/default.nix b/pkgs/applications/science/math/jags/default.nix
index 1d1fb96a47393..5ac1594e19aaf 100644
--- a/pkgs/applications/science/math/jags/default.nix
+++ b/pkgs/applications/science/math/jags/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "Just Another Gibbs Sampler";
     license     = licenses.gpl2;
-    homepage    = http://mcmc-jags.sourceforge.net;
+    homepage    = "http://mcmc-jags.sourceforge.net";
     maintainers = [ maintainers.andres ];
     platforms = platforms.unix;
   };
diff --git a/pkgs/applications/science/math/lrcalc/default.nix b/pkgs/applications/science/math/lrcalc/default.nix
index f407358d8f266..438a84c0e0be9 100644
--- a/pkgs/applications/science/math/lrcalc/default.nix
+++ b/pkgs/applications/science/math/lrcalc/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Littlewood-Richardson calculator";
-    homepage = http://math.rutgers.edu/~asbuch/lrcalc/;
+    homepage = "http://math.rutgers.edu/~asbuch/lrcalc/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ timokau ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/math/mathematica/10.nix b/pkgs/applications/science/math/mathematica/10.nix
index 4204b1399137e..c7da7b16da8f9 100644
--- a/pkgs/applications/science/math/mathematica/10.nix
+++ b/pkgs/applications/science/math/mathematica/10.nix
@@ -130,7 +130,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Wolfram Mathematica computational software system";
-    homepage = http://www.wolfram.com/mathematica/;
+    homepage = "http://www.wolfram.com/mathematica/";
     license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/science/math/mathematica/11.nix b/pkgs/applications/science/math/mathematica/11.nix
index 521cb70099b9f..898d6a4863515 100644
--- a/pkgs/applications/science/math/mathematica/11.nix
+++ b/pkgs/applications/science/math/mathematica/11.nix
@@ -144,7 +144,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Wolfram Mathematica computational software system";
-    homepage = http://www.wolfram.com/mathematica/;
+    homepage = "http://www.wolfram.com/mathematica/";
     license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/science/math/mathematica/9.nix b/pkgs/applications/science/math/mathematica/9.nix
index aaa1c02ec0a0a..617ac86571329 100644
--- a/pkgs/applications/science/math/mathematica/9.nix
+++ b/pkgs/applications/science/math/mathematica/9.nix
@@ -116,7 +116,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Wolfram Mathematica computational software system";
-    homepage = http://www.wolfram.com/mathematica/;
+    homepage = "http://www.wolfram.com/mathematica/";
     license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/applications/science/math/mathematica/default.nix b/pkgs/applications/science/math/mathematica/default.nix
index 5553bb0505fac..7831640b12445 100644
--- a/pkgs/applications/science/math/mathematica/default.nix
+++ b/pkgs/applications/science/math/mathematica/default.nix
@@ -148,7 +148,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Wolfram Mathematica computational software system";
-    homepage = http://www.wolfram.com/mathematica/;
+    homepage = "http://www.wolfram.com/mathematica/";
     license = licenses.unfree;
     maintainers = with maintainers; [ herberteuler ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/math/maxima/5.41.nix b/pkgs/applications/science/math/maxima/5.41.nix
index 583391d08ddeb..829dffc6116ec 100644
--- a/pkgs/applications/science/math/maxima/5.41.nix
+++ b/pkgs/applications/science/math/maxima/5.41.nix
@@ -86,7 +86,7 @@ stdenv.mkDerivation ({
 
   meta = {
     description = "Computer algebra system";
-    homepage = http://maxima.sourceforge.net;
+    homepage = "http://maxima.sourceforge.net";
     license = stdenv.lib.licenses.gpl2;
 
     longDescription = ''
diff --git a/pkgs/applications/science/math/maxima/default.nix b/pkgs/applications/science/math/maxima/default.nix
index 5843f38a74a88..49ff0d5d5a050 100644
--- a/pkgs/applications/science/math/maxima/default.nix
+++ b/pkgs/applications/science/math/maxima/default.nix
@@ -88,7 +88,7 @@ stdenv.mkDerivation ({
 
   meta = {
     description = "Computer algebra system";
-    homepage = http://maxima.sourceforge.net;
+    homepage = "http://maxima.sourceforge.net";
     license = stdenv.lib.licenses.gpl2;
 
     longDescription = ''
diff --git a/pkgs/applications/science/math/msieve/default.nix b/pkgs/applications/science/math/msieve/default.nix
index 643d990feb8db..db7a1c1490680 100644
--- a/pkgs/applications/science/math/msieve/default.nix
+++ b/pkgs/applications/science/math/msieve/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "msieve-1.53";
 
   src = fetchurl {
-    url = mirror://sourceforge/msieve/msieve/Msieve%20v1.53/msieve153_src.tar.gz;
+    url = "mirror://sourceforge/msieve/msieve/Msieve%20v1.53/msieve153_src.tar.gz";
     sha256 = "1d1vv7j4rh3nnxsmvafi73qy7lw7n3akjlm5pjl3m936yapvmz65";
   };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
   meta = {
     description = "A C library implementing a suite of algorithms to factor large integers";
     license = stdenv.lib.licenses.publicDomain;
-    homepage = http://msieve.sourceforge.net/;
+    homepage = "http://msieve.sourceforge.net/";
     maintainers = [ stdenv.lib.maintainers.roconnor ];
     platforms = [ "x86_64-linux" ] ++ stdenv.lib.platforms.darwin;
   };
diff --git a/pkgs/applications/science/math/mxnet/default.nix b/pkgs/applications/science/math/mxnet/default.nix
index bd4725ce73c62..5b7688f605194 100644
--- a/pkgs/applications/science/math/mxnet/default.nix
+++ b/pkgs/applications/science/math/mxnet/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Lightweight, Portable, Flexible Distributed/Mobile Deep Learning with Dynamic, Mutation-aware Dataflow Dep Scheduler";
-    homepage = https://mxnet.incubator.apache.org/;
+    homepage = "https://mxnet.incubator.apache.org/";
     maintainers = with maintainers; [ abbradar ];
     license = licenses.asl20;
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/math/nasc/default.nix b/pkgs/applications/science/math/nasc/default.nix
index a492178595681..3fbcfecab06e6 100644
--- a/pkgs/applications/science/math/nasc/default.nix
+++ b/pkgs/applications/science/math/nasc/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
       answers in to future equations and if that answer changes, so does
       the equations it’s used in.
     '';
-    homepage = https://github.com/parnold-x/nasc;
+    homepage = "https://github.com/parnold-x/nasc";
     maintainers = with maintainers; [ samdroid-apps ];
     platforms = platforms.linux;
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/science/math/nauty/default.nix b/pkgs/applications/science/math/nauty/default.nix
index 986610eea60d7..64cc4a9aa0034 100644
--- a/pkgs/applications/science/math/nauty/default.nix
+++ b/pkgs/applications/science/math/nauty/default.nix
@@ -37,6 +37,6 @@ stdenv.mkDerivation rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ raskin timokau ];
     platforms = platforms.unix;
-    homepage = http://pallini.di.uniroma1.it/;
+    homepage = "http://pallini.di.uniroma1.it/";
   };
 }
diff --git a/pkgs/applications/science/math/pari/default.nix b/pkgs/applications/science/math/pari/default.nix
index 8f2f740f24830..8b5176c94f693 100644
--- a/pkgs/applications/science/math/pari/default.nix
+++ b/pkgs/applications/science/math/pari/default.nix
@@ -81,8 +81,8 @@ stdenv.mkDerivation rec {
           run 3 or 4 times faster.) gp2c currently only understands a subset
            of the GP language.
     '';
-    homepage    = http://pari.math.u-bordeaux.fr;
-    downloadPage = http://pari.math.u-bordeaux.fr/download.html;
+    homepage    = "http://pari.math.u-bordeaux.fr";
+    downloadPage = "http://pari.math.u-bordeaux.fr/download.html";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ ertes raskin AndersonTorres timokau ];
     platforms   = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/science/math/pcalc/default.nix b/pkgs/applications/science/math/pcalc/default.nix
index 51c93f197e4f8..f372357fe7d8e 100644
--- a/pkgs/applications/science/math/pcalc/default.nix
+++ b/pkgs/applications/science/math/pcalc/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   version = "20141224";
 
   src = fetchgit {
-    url = git://git.code.sf.net/p/pcalc/code;
+    url = "git://git.code.sf.net/p/pcalc/code";
     rev = "181d60d3c880da4344fef7138065943eb3b9255f";
     sha256 = "1hd5bh20j5xzvv6qa0fmzmv0h8sf38r7zgi7y0b6nk17pjq33v90";
   };
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ bison flex ];
 
   meta = {
-    homepage = http://pcalc.sourceforge.net/;
+    homepage = "http://pcalc.sourceforge.net/";
     description = "Programmer's calculator";
     license = licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ ftrvxmtrx ];
diff --git a/pkgs/applications/science/math/perseus/default.nix b/pkgs/applications/science/math/perseus/default.nix
index 2d150d0c30e95..55293e6c8a79a 100644
--- a/pkgs/applications/science/math/perseus/default.nix
+++ b/pkgs/applications/science/math/perseus/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation {
       around datasets arising from point samples, images, distance
       matrices and so forth.
     '';
-    homepage = http://www.sas.upenn.edu/~vnanda/perseus/index.html;
+    homepage = "http://www.sas.upenn.edu/~vnanda/perseus/index.html";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [erikryb];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/math/pspp/default.nix b/pkgs/applications/science/math/pspp/default.nix
index af338c74fd41b..95c2c3931b3cc 100644
--- a/pkgs/applications/science/math/pspp/default.nix
+++ b/pkgs/applications/science/math/pspp/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://www.gnu.org/software/pspp/;
+    homepage = "https://www.gnu.org/software/pspp/";
     description = "A free replacement for SPSS, a program for statistical analysis of sampled data";
     license = stdenv.lib.licenses.gpl3Plus;
 
diff --git a/pkgs/applications/science/math/pynac/default.nix b/pkgs/applications/science/math/pynac/default.nix
index 4022383dbc7db..82e331216712d 100644
--- a/pkgs/applications/science/math/pynac/default.nix
+++ b/pkgs/applications/science/math/pynac/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
       It is a lite version of GiNaC as well, not implementing all the features
       of the full GiNaC, and it is *only* meant to be used as a Python library.
     '';
-    homepage    = http://pynac.org;
+    homepage    = "http://pynac.org";
     license = licenses.gpl3;
     maintainers = with maintainers; [ timokau ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/science/math/ratpoints/default.nix b/pkgs/applications/science/math/ratpoints/default.nix
index 71d16fb626cd2..fb205a69f0385 100644
--- a/pkgs/applications/science/math/ratpoints/default.nix
+++ b/pkgs/applications/science/math/ratpoints/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.unix;
-    homepage = http://www.mathe2.uni-bayreuth.de/stoll/programs/;
+    homepage = "http://www.mathe2.uni-bayreuth.de/stoll/programs/";
     updateWalker = true;
   };
 }
diff --git a/pkgs/applications/science/math/ries/default.nix b/pkgs/applications/science/math/ries/default.nix
index b244ee75b304a..4adf3ef2096e0 100644
--- a/pkgs/applications/science/math/ries/default.nix
+++ b/pkgs/applications/science/math/ries/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   makeFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://mrob.com/pub/ries/;
+    homepage = "https://mrob.com/pub/ries/";
     description = "Tool to produce a list of equations that approximately solve to a given number";
     platforms = platforms.all;
     maintainers = with maintainers; [ symphorien ];
diff --git a/pkgs/applications/science/math/ripser/default.nix b/pkgs/applications/science/math/ripser/default.nix
index a42a5b710ce06..1c8ced5ed222c 100644
--- a/pkgs/applications/science/math/ripser/default.nix
+++ b/pkgs/applications/science/math/ripser/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
   #Patch from dev branch to make compilation work.
   #Will be removed when it gets merged into master.
   patches = [(fetchurl {
-    url = https://github.com/Ripser/ripser/commit/dc78d8ce73ee35f3828f0aad67a4e53620277ebf.patch;
+    url = "https://github.com/Ripser/ripser/commit/dc78d8ce73ee35f3828f0aad67a4e53620277ebf.patch";
     sha256 = "1y93aqpqz8fm1cxxrf90dhh67im3ndkr8dnxgbw5y96296n4r924";
   })];
 
@@ -59,7 +59,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A lean C++ code for the computation of Vietoris–Rips persistence barcodes";
-    homepage = https://github.com/Ripser/ripser;
+    homepage = "https://github.com/Ripser/ripser";
     license = stdenv.lib.licenses.lgpl3;
     maintainers = with stdenv.lib.maintainers; [erikryb];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/math/sage/flask-oldsessions.nix b/pkgs/applications/science/math/sage/flask-oldsessions.nix
index 0899c93602b93..403dc8708fabb 100644
--- a/pkgs/applications/science/math/sage/flask-oldsessions.nix
+++ b/pkgs/applications/science/math/sage/flask-oldsessions.nix
@@ -31,6 +31,6 @@ buildPythonPackage rec {
     description = "Provides a session class that works like the one in Flask before 0.10.";
     license = licenses.bsd2;
     maintainers = with maintainers; [ timokau ];
-    homepage = https://github.com/mitsuhiko/flask-oldsessions;
+    homepage = "https://github.com/mitsuhiko/flask-oldsessions";
   };
 }
diff --git a/pkgs/applications/science/math/sage/flask-openid.nix b/pkgs/applications/science/math/sage/flask-openid.nix
index 9043fabd9b4a9..527173dec80a0 100644
--- a/pkgs/applications/science/math/sage/flask-openid.nix
+++ b/pkgs/applications/science/math/sage/flask-openid.nix
@@ -23,6 +23,6 @@ buildPythonPackage rec {
     description = "Adds openid support to flask applications";
     license = licenses.bsd2;
     maintainers = with maintainers; [ timokau ];
-    homepage = https://pythonhosted.org/Flask-OpenID/;
+    homepage = "https://pythonhosted.org/Flask-OpenID/";
   };
 }
diff --git a/pkgs/applications/science/math/sage/python-openid.nix b/pkgs/applications/science/math/sage/python-openid.nix
index 1bfe02f50df18..4c7fdadadaf04 100644
--- a/pkgs/applications/science/math/sage/python-openid.nix
+++ b/pkgs/applications/science/math/sage/python-openid.nix
@@ -35,6 +35,6 @@ buildPythonPackage rec {
     description = "OpenID library for Python";
     license = licenses.asl20;
     maintainers = with maintainers; [ timokau ];
-    homepage = https://github.com/openid/python-openid/;
+    homepage = "https://github.com/openid/python-openid/";
   };
 }
diff --git a/pkgs/applications/science/math/scilab-bin/default.nix b/pkgs/applications/science/math/scilab-bin/default.nix
index 8e85cece9b286..f9abdee2d1486 100644
--- a/pkgs/applications/science/math/scilab-bin/default.nix
+++ b/pkgs/applications/science/math/scilab-bin/default.nix
@@ -96,7 +96,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://www.scilab.org/;
+    homepage = "http://www.scilab.org/";
     description = "Scientific software package for numerical computations (Matlab lookalike)";
     # see http://www.scilab.org/legal_notice
     license = "Scilab";
diff --git a/pkgs/applications/science/math/scilab/default.nix b/pkgs/applications/science/math/scilab/default.nix
index 02f1f4e58a9d2..24b3feef51e11 100644
--- a/pkgs/applications/science/math/scilab/default.nix
+++ b/pkgs/applications/science/math/scilab/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
   makeFlags = [ "all" ];
 
   meta = {
-    homepage = http://www.scilab.org/;
+    homepage = "http://www.scilab.org/";
     description = "Scientific software package for numerical computations (Matlab lookalike)";
     # see http://www.scilab.org/legal
     license = "SciLab";
diff --git a/pkgs/applications/science/math/scotch/default.nix b/pkgs/applications/science/math/scotch/default.nix
index 610f1ef05c0fe..75a6b2dba68c3 100644
--- a/pkgs/applications/science/math/scotch/default.nix
+++ b/pkgs/applications/science/math/scotch/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
       Scotch is a software package for graph and mesh/hypergraph partitioning, graph clustering, 
       and sparse matrix ordering.
     '';
-    homepage = http://www.labri.fr/perso/pelegrin/scotch;
+    homepage = "http://www.labri.fr/perso/pelegrin/scotch";
     license = stdenv.lib.licenses.cecill-c;
     maintainers = [ stdenv.lib.maintainers.bzizou ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/math/singular/default.nix b/pkgs/applications/science/math/singular/default.nix
index fccd1489e11ca..a8c4f6bb9a09d 100644
--- a/pkgs/applications/science/math/singular/default.nix
+++ b/pkgs/applications/science/math/singular/default.nix
@@ -112,7 +112,7 @@ stdenv.mkDerivation rec {
     # 32 bit x86 fails with some link error: `undefined reference to `__divmoddi4@GCC_7.0.0'`
     platforms = subtractLists platforms.i686 platforms.unix;
     license = licenses.gpl3; # Or GPLv2 at your option - but not GPLv4
-    homepage = http://www.singular.uni-kl.de;
+    homepage = "http://www.singular.uni-kl.de";
     downloadPage = "http://www.mathematik.uni-kl.de/ftp/pub/Math/Singular/SOURCES/";
   };
 }
diff --git a/pkgs/applications/science/math/speedcrunch/default.nix b/pkgs/applications/science/math/speedcrunch/default.nix
index 67561658eb256..4bb39ab73f5fe 100644
--- a/pkgs/applications/science/math/speedcrunch/default.nix
+++ b/pkgs/applications/science/math/speedcrunch/default.nix
@@ -20,7 +20,7 @@ mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage    = http://speedcrunch.org;
+    homepage    = "http://speedcrunch.org";
     license     = licenses.gpl2Plus;
     description = "A fast power user calculator";
     longDescription = ''
diff --git a/pkgs/applications/science/math/weka/default.nix b/pkgs/applications/science/math/weka/default.nix
index ec9ea0b85331a..c4fc19d6c6b71 100644
--- a/pkgs/applications/science/math/weka/default.nix
+++ b/pkgs/applications/science/math/weka/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.cs.waikato.ac.nz/ml/weka/;
+    homepage = "http://www.cs.waikato.ac.nz/ml/weka/";
     description = "Collection of machine learning algorithms for data mining tasks";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.mimame ];
diff --git a/pkgs/applications/science/math/yacas/default.nix b/pkgs/applications/science/math/yacas/default.nix
index ed680b1b4cde1..c19d8f0fbc17c 100644
--- a/pkgs/applications/science/math/yacas/default.nix
+++ b/pkgs/applications/science/math/yacas/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Easy to use, general purpose Computer Algebra System";
-    homepage = http://www.yacas.org/;
+    homepage = "http://www.yacas.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/science/medicine/aliza/default.nix b/pkgs/applications/science/medicine/aliza/default.nix
index e135534d1acf0..279f602e3fd5d 100644
--- a/pkgs/applications/science/medicine/aliza/default.nix
+++ b/pkgs/applications/science/medicine/aliza/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Medical imaging software with 2D, 3D and 4D capabilities";
-    homepage = https://www.aliza-dicom-viewer.com;
+    homepage = "https://www.aliza-dicom-viewer.com";
     license = licenses.unfreeRedistributable;
     maintainers = with maintainers; [ mounium ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/misc/boinc/default.nix b/pkgs/applications/science/misc/boinc/default.nix
index 38b9b8ec66d1a..802abae80e1d8 100644
--- a/pkgs/applications/science/misc/boinc/default.nix
+++ b/pkgs/applications/science/misc/boinc/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Free software for distributed and grid computing";
-    homepage = https://boinc.berkeley.edu/;
+    homepage = "https://boinc.berkeley.edu/";
     license = stdenv.lib.licenses.lgpl2Plus;
     platforms = stdenv.lib.platforms.linux;  # arbitrary choice
   };
diff --git a/pkgs/applications/science/misc/colmap/default.nix b/pkgs/applications/science/misc/colmap/default.nix
index da118f6bca57f..02adb689e20b4 100644
--- a/pkgs/applications/science/misc/colmap/default.nix
+++ b/pkgs/applications/science/misc/colmap/default.nix
@@ -36,7 +36,7 @@ mkDerivation rec {
        COLMAP is a general-purpose Structure-from-Motion (SfM) and Multi-View Stereo (MVS) pipeline
        with a graphical and command-line interface.
     '';
-    homepage = https://colmap.github.io/index.html;
+    homepage = "https://colmap.github.io/index.html";
     license = licenses.bsd2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ lebastr ];
diff --git a/pkgs/applications/science/misc/cytoscape/default.nix b/pkgs/applications/science/misc/cytoscape/default.nix
index 8ed3deed804c9..b4e4adbfa6f24 100644
--- a/pkgs/applications/science/misc/cytoscape/default.nix
+++ b/pkgs/applications/science/misc/cytoscape/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.cytoscape.org;
+    homepage = "http://www.cytoscape.org";
     description = "A general platform for complex network analysis and visualization";
     license = stdenv.lib.licenses.lgpl21;
     maintainers = [stdenv.lib.maintainers.mimame];
diff --git a/pkgs/applications/science/misc/fityk/default.nix b/pkgs/applications/science/misc/fityk/default.nix
index 8d0336f582827..18def1d24e2fd 100644
--- a/pkgs/applications/science/misc/fityk/default.nix
+++ b/pkgs/applications/science/misc/fityk/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Curve fitting and peak fitting software";
     license = stdenv.lib.licenses.gpl2;
-    homepage = http://fityk.nieto.pl/;
+    homepage = "http://fityk.nieto.pl/";
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/applications/science/misc/gephi/default.nix b/pkgs/applications/science/misc/gephi/default.nix
index 577c8ecfa0586..b6b53013cb4be 100644
--- a/pkgs/applications/science/misc/gephi/default.nix
+++ b/pkgs/applications/science/misc/gephi/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A platform for visualizing and manipulating large graphs";
-    homepage = https://gephi.org;
+    homepage = "https://gephi.org";
     license = licenses.gpl3;
     maintainers = [ maintainers.taeer ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/misc/gplates/default.nix b/pkgs/applications/science/misc/gplates/default.nix
index 9b510d432fb30..592e36370e0f4 100644
--- a/pkgs/applications/science/misc/gplates/default.nix
+++ b/pkgs/applications/science/misc/gplates/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Desktop software for the interactive visualisation of plate-tectonics";
-    homepage = https://www.gplates.org;
+    homepage = "https://www.gplates.org";
     license = licenses.gpl2;
     platforms = platforms.all;
     broken = true;
diff --git a/pkgs/applications/science/misc/megam/default.nix b/pkgs/applications/science/misc/megam/default.nix
index 6cdc86d20eb28..8bb64932f20ee 100644
--- a/pkgs/applications/science/misc/megam/default.nix
+++ b/pkgs/applications/science/misc/megam/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation {
           than the iterative scaling techniques used in almost every
           other maxent package out there.  '';
 
-    homepage = http://www.umiacs.umd.edu/~hal/megam;
+    homepage = "http://www.umiacs.umd.edu/~hal/megam";
 
     license = "non-commercial";
 
diff --git a/pkgs/applications/science/misc/netlogo/default.nix b/pkgs/applications/science/misc/netlogo/default.nix
index 9b0279bd4d099..af892441a4723 100644
--- a/pkgs/applications/science/misc/netlogo/default.nix
+++ b/pkgs/applications/science/misc/netlogo/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
       NetLogo is a multi-agent programmable modeling environment. It is used by
       many tens of thousands of students, teachers and researchers worldwide.
     '';
-    homepage = https://ccl.northwestern.edu/netlogo/index.shtml;
+    homepage = "https://ccl.northwestern.edu/netlogo/index.shtml";
     license = licenses.gpl2;
     maintainers = [ maintainers.dpaetzel ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/misc/openmvg/default.nix b/pkgs/applications/science/misc/openmvg/default.nix
index 121e953f43af9..aea376301abd7 100644
--- a/pkgs/applications/science/misc/openmvg/default.nix
+++ b/pkgs/applications/science/misc/openmvg/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A library for computer-vision scientists and targeted for the Multiple View Geometry community";
-    homepage = https://openmvg.readthedocs.io/en/latest/;
+    homepage = "https://openmvg.readthedocs.io/en/latest/";
     license = stdenv.lib.licenses.mpl20;
     platforms = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ mdaiter ];
diff --git a/pkgs/applications/science/misc/openmvs/default.nix b/pkgs/applications/science/misc/openmvs/default.nix
index bb067fbca7a9c..efdd86f0ab2dc 100644
--- a/pkgs/applications/science/misc/openmvs/default.nix
+++ b/pkgs/applications/science/misc/openmvs/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A library for computer-vision scientists and especially targeted to the Multi-View Stereo reconstruction community";
-    homepage = http://cdcseacave.github.io/openMVS/;
+    homepage = "http://cdcseacave.github.io/openMVS/";
     license = licenses.agpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ mdaiter ];
diff --git a/pkgs/applications/science/misc/root/5.nix b/pkgs/applications/science/misc/root/5.nix
index 8422eb8752b11..fd06d721ebd1c 100644
--- a/pkgs/applications/science/misc/root/5.nix
+++ b/pkgs/applications/science/misc/root/5.nix
@@ -88,7 +88,7 @@ stdenv.mkDerivation rec {
   setupHook = ./setup-hook.sh;
 
   meta = with stdenv.lib; {
-    homepage = https://root.cern.ch/;
+    homepage = "https://root.cern.ch/";
     description = "A data analysis framework";
     platforms = platforms.unix;
     maintainers = with maintainers; [ veprbl ];
diff --git a/pkgs/applications/science/misc/root/default.nix b/pkgs/applications/science/misc/root/default.nix
index b901e40a194a9..990952e21acac 100644
--- a/pkgs/applications/science/misc/root/default.nix
+++ b/pkgs/applications/science/misc/root/default.nix
@@ -84,7 +84,7 @@ stdenv.mkDerivation rec {
   setupHook = ./setup-hook.sh;
 
   meta = with stdenv.lib; {
-    homepage = https://root.cern.ch/;
+    homepage = "https://root.cern.ch/";
     description = "A data analysis framework";
     platforms = platforms.unix;
     maintainers = [ maintainers.veprbl ];
diff --git a/pkgs/applications/science/misc/sasview/default.nix b/pkgs/applications/science/misc/sasview/default.nix
index ed6fa3ae886b1..bbbe80eb65686 100644
--- a/pkgs/applications/science/misc/sasview/default.nix
+++ b/pkgs/applications/science/misc/sasview/default.nix
@@ -67,7 +67,7 @@ python.pkgs.buildPythonApplication rec {
   patches = [ ./pyparsing-fix.patch ./local_config.patch ];
 
   meta = with lib; {
-    homepage = https://www.sasview.org;
+    homepage = "https://www.sasview.org";
     description = "Fitting and data analysis for small angle scattering data";
     maintainers = with maintainers; [ rprospero ];
     license = licenses.bsd3;
diff --git a/pkgs/applications/science/misc/sasview/xhtml2pdf.nix b/pkgs/applications/science/misc/sasview/xhtml2pdf.nix
index 8eff2057928aa..42b9560d9b8d7 100644
--- a/pkgs/applications/science/misc/sasview/xhtml2pdf.nix
+++ b/pkgs/applications/science/misc/sasview/xhtml2pdf.nix
@@ -26,7 +26,7 @@ buildPythonPackage rec {
 
   meta = {
     description = "A pdf converter for the ReportLab Toolkit";
-    homepage = https://github.com/xhtml2pdf/xhtml2pdf;
+    homepage = "https://github.com/xhtml2pdf/xhtml2pdf";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ rprospero ];
   };
diff --git a/pkgs/applications/science/misc/simgrid/default.nix b/pkgs/applications/science/misc/simgrid/default.nix
index b8aef4bd53fe6..0ba1cd0d2faf4 100644
--- a/pkgs/applications/science/misc/simgrid/default.nix
+++ b/pkgs/applications/science/misc/simgrid/default.nix
@@ -104,7 +104,7 @@ stdenv.mkDerivation rec {
       scheduling on distributed computing platforms ranging from simple
       network of workstations to Computational Grids.
     '';
-    homepage = https://simgrid.org/;
+    homepage = "https://simgrid.org/";
     license = licenses.lgpl2Plus;
     maintainers = with maintainers; [ mickours mpoquet ];
     platforms = ["x86_64-linux"];
diff --git a/pkgs/applications/science/misc/tulip/default.nix b/pkgs/applications/science/misc/tulip/default.nix
index 3f83f2f30a674..f29cd41169d44 100644
--- a/pkgs/applications/science/misc/tulip/default.nix
+++ b/pkgs/applications/science/misc/tulip/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
          data that can be tailored to the problems he or she is addressing.
       '';
 
-    homepage = http://tulip.labri.fr/;
+    homepage = "http://tulip.labri.fr/";
 
     license = stdenv.lib.licenses.gpl3Plus;
 
diff --git a/pkgs/applications/science/misc/vite/default.nix b/pkgs/applications/science/misc/vite/default.nix
index 3e7c7a42eb826..0d749bb9be4fc 100644
--- a/pkgs/applications/science/misc/vite/default.nix
+++ b/pkgs/applications/science/misc/vite/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation {
       parallel or distributed applications.
     '';
 
-    homepage = http://vite.gforge.inria.fr/;
+    homepage = "http://vite.gforge.inria.fr/";
     license = stdenv.lib.licenses.cecill20;
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/science/molecular-dynamics/dl-poly-classic/default.nix b/pkgs/applications/science/molecular-dynamics/dl-poly-classic/default.nix
index b0ed5e9463790..51978e95766d7 100644
--- a/pkgs/applications/science/molecular-dynamics/dl-poly-classic/default.nix
+++ b/pkgs/applications/science/molecular-dynamics/dl-poly-classic/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.ccp5.ac.uk/DL_POLY_C;
+    homepage = "https://www.ccp5.ac.uk/DL_POLY_C";
     description = "DL_POLY Classic is a general purpose molecular dynamics simulation package";
     license = licenses.bsdOriginal;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/science/molecular-dynamics/lammps/default.nix b/pkgs/applications/science/molecular-dynamics/lammps/default.nix
index 234bbdab31586..ab706a8893104 100644
--- a/pkgs/applications/science/molecular-dynamics/lammps/default.nix
+++ b/pkgs/applications/science/molecular-dynamics/lammps/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
       funding from the DOE. It is an open-source code, distributed freely
       under the terms of the GNU Public License (GPL).
       '';
-    homepage = http://lammps.sandia.gov;
+    homepage = "http://lammps.sandia.gov";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.costrouc ];
diff --git a/pkgs/applications/science/physics/quantomatic/default.nix b/pkgs/applications/science/physics/quantomatic/default.nix
index b22b9d412fdc3..a9c83310b2ff4 100644
--- a/pkgs/applications/science/physics/quantomatic/default.nix
+++ b/pkgs/applications/science/physics/quantomatic/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A piece of software for reasoning about monoidal theories; in particular, quantum information processing";
     license = licenses.gpl3;
-    homepage = https://quantomatic.github.io/;
+    homepage = "https://quantomatic.github.io/";
     maintainers = with maintainers; [ nickhu ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/science/physics/sacrifice/default.nix b/pkgs/applications/science/physics/sacrifice/default.nix
index 80417f0fcc184..609fea9f7dca5 100644
--- a/pkgs/applications/science/physics/sacrifice/default.nix
+++ b/pkgs/applications/science/physics/sacrifice/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation {
   meta = {
     description = "A standalone contribution to AGILe for steering Pythia 8";
     license     = stdenv.lib.licenses.gpl2;
-    homepage    = https://agile.hepforge.org/trac/wiki/Sacrifice;
+    homepage    = "https://agile.hepforge.org/trac/wiki/Sacrifice";
     platforms   = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ veprbl ];
   };
diff --git a/pkgs/applications/science/physics/sherpa/default.nix b/pkgs/applications/science/physics/sherpa/default.nix
index 04115399c1a7a..85b2ddd4d07ac 100644
--- a/pkgs/applications/science/physics/sherpa/default.nix
+++ b/pkgs/applications/science/physics/sherpa/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Simulation of High-Energy Reactions of PArticles in lepton-lepton, lepton-photon, photon-photon, lepton-hadron and hadron-hadron collisions";
     license     = stdenv.lib.licenses.gpl2;
-    homepage    = https://gitlab.com/sherpa-team/sherpa;
+    homepage    = "https://gitlab.com/sherpa-team/sherpa";
     platforms   = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ veprbl ];
   };
diff --git a/pkgs/applications/science/physics/xfitter/default.nix b/pkgs/applications/science/physics/xfitter/default.nix
index 818bea7d0ff53..f4d70e790797a 100644
--- a/pkgs/applications/science/physics/xfitter/default.nix
+++ b/pkgs/applications/science/physics/xfitter/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "The xFitter project is an open source QCD fit framework ready to extract PDFs and assess the impact of new data";
     license     = licenses.gpl3;
-    homepage    = https://www.xfitter.org/xFitter;
+    homepage    = "https://www.xfitter.org/xFitter";
     platforms   = platforms.unix;
     maintainers = with maintainers; [ veprbl ];
   };
diff --git a/pkgs/applications/science/programming/fdr/default.nix b/pkgs/applications/science/programming/fdr/default.nix
index 2c0bb84c801f4..4eeca5c1759bc 100644
--- a/pkgs/applications/science/programming/fdr/default.nix
+++ b/pkgs/applications/science/programming/fdr/default.nix
@@ -2,7 +2,7 @@
 stdenv.mkDerivation {
   name = "fdr-4.2.3";
   src = fetchurl {
-    url = https://www.cs.ox.ac.uk/projects/fdr/downloads/fdr-3789-linux-x86_64.tar.gz;
+    url = "https://www.cs.ox.ac.uk/projects/fdr/downloads/fdr-3789-linux-x86_64.tar.gz";
     sha256 = "0n2yqichym5xdawlgk3r7yha88k7ycnx6585jfrcm7043sls1i88";
   };
 
@@ -59,7 +59,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.cs.ox.ac.uk/projects/fdr/;
+    homepage = "https://www.cs.ox.ac.uk/projects/fdr/";
     description = "The CSP refinement checker";
     license = licenses.unfreeRedistributable;
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/programming/groove/default.nix b/pkgs/applications/science/programming/groove/default.nix
index e854f20d39a3e..87b7b02317a27 100644
--- a/pkgs/applications/science/programming/groove/default.nix
+++ b/pkgs/applications/science/programming/groove/default.nix
@@ -46,7 +46,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GRaphs for Object-Oriented VErification";
-    homepage = http://groove.cs.utwente.nl/;
+    homepage = "http://groove.cs.utwente.nl/";
     license = licenses.asl20;
     platforms = platforms.all;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/science/programming/scyther/default.nix b/pkgs/applications/science/programming/scyther/default.nix
index b4daae1afc040..5cfe081072a4e 100644
--- a/pkgs/applications/science/programming/scyther/default.nix
+++ b/pkgs/applications/science/programming/scyther/default.nix
@@ -14,7 +14,7 @@ let
 
   meta = with lib; {
     description = "Scyther is a tool for the automatic verification of security protocols.";
-    homepage = https://www.cs.ox.ac.uk/people/cas.cremers/scyther/;
+    homepage = "https://www.cs.ox.ac.uk/people/cas.cremers/scyther/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ infinisil ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/science/robotics/apmplanner2/default.nix b/pkgs/applications/science/robotics/apmplanner2/default.nix
index 0bc58c50335a0..ede698e2b0b4f 100644
--- a/pkgs/applications/science/robotics/apmplanner2/default.nix
+++ b/pkgs/applications/science/robotics/apmplanner2/default.nix
@@ -46,7 +46,7 @@ mkDerivation rec {
       A GUI ground control station for autonomous vehicles using the MAVLink protocol.
       Includes support for the APM and PX4 based controllers.
     '';
-    homepage = https://ardupilot.org/planner2/;
+    homepage = "https://ardupilot.org/planner2/";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ wucke13 ];
   };
diff --git a/pkgs/applications/science/robotics/betaflight-configurator/default.nix b/pkgs/applications/science/robotics/betaflight-configurator/default.nix
index 31295114375df..4684ba8c1937b 100644
--- a/pkgs/applications/science/robotics/betaflight-configurator/default.nix
+++ b/pkgs/applications/science/robotics/betaflight-configurator/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
       Various types of aircraft are supported by the tool and by Betaflight, e.g. 
       quadcopters, hexacopters, octocopters and fixed-wing aircraft.
     '';
-    homepage    = https://github.com/betaflight/betaflight/wiki;
+    homepage    = "https://github.com/betaflight/betaflight/wiki";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ wucke13 ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/science/robotics/gazebo/default.nix b/pkgs/applications/science/robotics/gazebo/default.nix
index a3ebda463b913..aea298b654859 100644
--- a/pkgs/applications/science/robotics/gazebo/default.nix
+++ b/pkgs/applications/science/robotics/gazebo/default.nix
@@ -75,7 +75,7 @@ stdenv.mkDerivation rec {
     ++ optional withHdf5Support hdf5;
 
   meta = with stdenv.lib; {
-    homepage = http://gazebosim.org/;
+    homepage = "http://gazebosim.org/";
     description = "Multi-robot simulator for outdoor environments";
     license = licenses.asl20;
     maintainers = with maintainers; [ pxc ];
diff --git a/pkgs/applications/science/robotics/yarp/default.nix b/pkgs/applications/science/robotics/yarp/default.nix
index d14c0bb0fe81e..df2c569a31c75 100644
--- a/pkgs/applications/science/robotics/yarp/default.nix
+++ b/pkgs/applications/science/robotics/yarp/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Yet Another Robot Platform";
-    homepage = http://yarp.it;
+    homepage = "http://yarp.it";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/search/doodle/default.nix b/pkgs/applications/search/doodle/default.nix
index 9d1da21492a27..9bf00801600ff 100644
--- a/pkgs/applications/search/doodle/default.nix
+++ b/pkgs/applications/search/doodle/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   };
 
   meta = {
-    homepage = https://grothoff.org/christian/doodle/;
+    homepage = "https://grothoff.org/christian/doodle/";
     description = "Tool to quickly index and search documents on a computer";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/search/grepcidr/default.nix b/pkgs/applications/search/grepcidr/default.nix
index 06b2aee039205..125e67938ecde 100644
--- a/pkgs/applications/search/grepcidr/default.nix
+++ b/pkgs/applications/search/grepcidr/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Filter IPv4 and IPv6 addresses matching CIDR patterns";
-    homepage = http://www.pc-tools.net/unix/grepcidr/;
+    homepage = "http://www.pc-tools.net/unix/grepcidr/";
     license = licenses.gpl3;
     platforms = platforms.unix;
     maintainers = [ maintainers.fadenb ];
diff --git a/pkgs/applications/search/grepm/default.nix b/pkgs/applications/search/grepm/default.nix
index bad8d35623c09..d03d26d00004d 100644
--- a/pkgs/applications/search/grepm/default.nix
+++ b/pkgs/applications/search/grepm/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
   
   meta = with stdenv.lib; {
     description = "Wrapper for grepmail utilizing mutt";
-    homepage = http://www.barsnick.net/sw/grepm.html;
+    homepage = "http://www.barsnick.net/sw/grepm.html";
     license = licenses.free;
     platforms = platforms.unix;
     maintainers = [ maintainers.romildo ];
diff --git a/pkgs/applications/search/recoll/default.nix b/pkgs/applications/search/recoll/default.nix
index 06f3733c8f79e..425e82000b79f 100644
--- a/pkgs/applications/search/recoll/default.nix
+++ b/pkgs/applications/search/recoll/default.nix
@@ -69,7 +69,7 @@ stdenv.mkDerivation rec {
       Recoll is an Xapian frontend that can search through files, archive
       members, email attachments. 
     '';
-    homepage = https://www.lesbonscomptes.com/recoll/;
+    homepage = "https://www.lesbonscomptes.com/recoll/";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = [ maintainers.jcumming ];
diff --git a/pkgs/applications/version-management/arch/default.nix b/pkgs/applications/version-management/arch/default.nix
index bc62004065b34..2108afc510626 100644
--- a/pkgs/applications/version-management/arch/default.nix
+++ b/pkgs/applications/version-management/arch/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "GNU Arch (aka. `tla'), a distributed revision control system";
-    homepage = https://www.gnu.org/software/gnu-arch/;
+    homepage = "https://www.gnu.org/software/gnu-arch/";
     license = "GPL";
   };
 }
diff --git a/pkgs/applications/version-management/bazaar/default.nix b/pkgs/applications/version-management/bazaar/default.nix
index 097c1e86a8978..fa0009d3ef03b 100644
--- a/pkgs/applications/version-management/bazaar/default.nix
+++ b/pkgs/applications/version-management/bazaar/default.nix
@@ -28,7 +28,7 @@ python2Packages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://bazaar-vcs.org/;
+    homepage = "http://bazaar-vcs.org/";
     description = "A distributed version control system that Just Works";
     platforms = platforms.unix;
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/version-management/bazaar/tools.nix b/pkgs/applications/version-management/bazaar/tools.nix
index 0dfa19882028b..d76260ad4be7e 100644
--- a/pkgs/applications/version-management/bazaar/tools.nix
+++ b/pkgs/applications/version-management/bazaar/tools.nix
@@ -13,7 +13,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Bazaar plugins";
-    homepage = http://wiki.bazaar.canonical.com/BzrTools;
+    homepage = "http://wiki.bazaar.canonical.com/BzrTools";
     platforms = platforms.unix;
     license = licenses.gpl2;
   };
diff --git a/pkgs/applications/version-management/bitkeeper/default.nix b/pkgs/applications/version-management/bitkeeper/default.nix
index e092a604142ce..78f62ebcf25cf 100644
--- a/pkgs/applications/version-management/bitkeeper/default.nix
+++ b/pkgs/applications/version-management/bitkeeper/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
       BitKeeper is a fast, enterprise-ready, distributed SCM that
       scales up to very large projects and down to tiny ones.
     '';
-    homepage    = https://www.bitkeeper.org/;
+    homepage    = "https://www.bitkeeper.org/";
     license     = stdenv.lib.licenses.asl20;
     platforms   = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ wscott thoughtpolice ];
diff --git a/pkgs/applications/version-management/cvs-fast-export/default.nix b/pkgs/applications/version-management/cvs-fast-export/default.nix
index fd4c9793d38b4..1556f26d13548 100644
--- a/pkgs/applications/version-management/cvs-fast-export/default.nix
+++ b/pkgs/applications/version-management/cvs-fast-export/default.nix
@@ -11,7 +11,7 @@ mkDerivation rec {
     description = "Export an RCS or CVS history as a fast-import stream";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ dfoxfranke ];
-    homepage = http://www.catb.org/esr/cvs-fast-export/;
+    homepage = "http://www.catb.org/esr/cvs-fast-export/";
     platforms = platforms.all;
   };
 
diff --git a/pkgs/applications/version-management/cvs/default.nix b/pkgs/applications/version-management/cvs/default.nix
index 2063149dd784e..07a6b7c993c87 100644
--- a/pkgs/applications/version-management/cvs/default.nix
+++ b/pkgs/applications/version-management/cvs/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "cvs-1.12.13";
 
   src = fetchurl {
-    url = mirror://savannah/cvs/source/feature/1.12.13/cvs-1.12.13.tar.bz2;
+    url = "mirror://savannah/cvs/source/feature/1.12.13/cvs-1.12.13.tar.bz2";
     sha256 = "0pjir8cwn0087mxszzbsi1gyfc6373vif96cw4q3m1x6p49kd1bq";
   };
 
@@ -33,7 +33,7 @@ stdenv.mkDerivation {
   doCheck = false; # fails 1 of 1 tests
 
   meta = with stdenv.lib; {
-    homepage = http://cvs.nongnu.org;
+    homepage = "http://cvs.nongnu.org";
     description = "Concurrent Versions System - a source control system";
     license = licenses.gpl2; # library is GPLv2, main is GPLv1
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/cvs2svn/default.nix b/pkgs/applications/version-management/cvs2svn/default.nix
index 4c818060d2204..68c4e72e53192 100644
--- a/pkgs/applications/version-management/cvs2svn/default.nix
+++ b/pkgs/applications/version-management/cvs2svn/default.nix
@@ -29,7 +29,7 @@ python2Packages.buildPythonApplication  rec {
 
   meta = with lib; {
     description = "A tool to convert CVS repositories to Subversion repositories";
-    homepage = http://cvs2svn.tigris.org/;
+    homepage = "http://cvs2svn.tigris.org/";
     maintainers = [ maintainers.makefu ];
     platforms = platforms.unix;
     license = licenses.asl20;
diff --git a/pkgs/applications/version-management/cvsps/default.nix b/pkgs/applications/version-management/cvsps/default.nix
index 71130a2e28302..133d8d7cbb4e6 100644
--- a/pkgs/applications/version-management/cvsps/default.nix
+++ b/pkgs/applications/version-management/cvsps/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
       changes made to a collection of files, and all committed at the
       same time (using a single "cvs commit" command).
     '';
-    homepage = http://www.cobite.com/cvsps/;
+    homepage = "http://www.cobite.com/cvsps/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/version-management/cvsq/default.nix b/pkgs/applications/version-management/cvsq/default.nix
index c030d8b087846..a39c9ede5243f 100644
--- a/pkgs/applications/version-management/cvsq/default.nix
+++ b/pkgs/applications/version-management/cvsq/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
       repository. This is useful for commands like log, diff, etc; however it cannot
       be used for commits (that's what cvsq is for).
     '';
-    homepage = https://www.linta.de/~aehlig/cvsq/;
+    homepage = "https://www.linta.de/~aehlig/cvsq/";
     license = stdenv.lib.licenses.bsd3;
     maintainers = with stdenv.lib.maintainers; [ clkamp ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/version-management/dvc/default.nix b/pkgs/applications/version-management/dvc/default.nix
index fe10551771cfe..b9ac8b139cbb6 100644
--- a/pkgs/applications/version-management/dvc/default.nix
+++ b/pkgs/applications/version-management/dvc/default.nix
@@ -59,7 +59,7 @@ buildPythonApplication rec {
   meta = with lib; {
     description = "Version Control System for Machine Learning Projects";
     license = licenses.asl20;
-    homepage = https://dvc.org;
+    homepage = "https://dvc.org";
     maintainers = with maintainers; [ cmcdragonkai ];
   };
 }
diff --git a/pkgs/applications/version-management/fossil/default.nix b/pkgs/applications/version-management/fossil/default.nix
index 8a41221a2671e..fa715884b6019 100644
--- a/pkgs/applications/version-management/fossil/default.nix
+++ b/pkgs/applications/version-management/fossil/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
       many such systems in use today. Fossil strives to distinguish itself
       from the others by being extremely simple to setup and operate.
     '';
-    homepage = http://www.fossil-scm.org/;
+    homepage = "http://www.fossil-scm.org/";
     license = stdenv.lib.licenses.bsd2;
     platforms = with stdenv.lib.platforms; all;
     maintainers = [ #Add your name here!
diff --git a/pkgs/applications/version-management/git-and-tools/bfg-repo-cleaner/default.nix b/pkgs/applications/version-management/git-and-tools/bfg-repo-cleaner/default.nix
index 0d77296841636..b225782f28646 100644
--- a/pkgs/applications/version-management/git-and-tools/bfg-repo-cleaner/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/bfg-repo-cleaner/default.nix
@@ -27,7 +27,7 @@ in
     '';
 
     meta = with stdenv.lib; {
-      homepage = https://rtyley.github.io/bfg-repo-cleaner/;
+      homepage = "https://rtyley.github.io/bfg-repo-cleaner/";
       # Descriptions taken with minor modification from the homepage of bfg-repo-cleaner
       description = "Removes large or troublesome blobs in a git repository like git-filter-branch does, but faster";
       longDescription = ''
diff --git a/pkgs/applications/version-management/git-and-tools/bitbucket-server-cli/default.nix b/pkgs/applications/version-management/git-and-tools/bitbucket-server-cli/default.nix
index fda89e331809e..68edb8503bfcc 100644
--- a/pkgs/applications/version-management/git-and-tools/bitbucket-server-cli/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/bitbucket-server-cli/default.nix
@@ -13,7 +13,7 @@ bundlerEnv rec {
 
   meta = with lib; {
     description = "A command line interface to interact with BitBucket Server (formerly Atlassian Stash)";
-    homepage    = https://bitbucket.org/atlassian/bitbucket-server-cli;
+    homepage    = "https://bitbucket.org/atlassian/bitbucket-server-cli";
     license     = licenses.mit;
     maintainers = with maintainers; [ jgertm nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/version-management/git-and-tools/cgit/default.nix b/pkgs/applications/version-management/git-and-tools/cgit/default.nix
index 2039265506288..121a6cf64ea11 100644
--- a/pkgs/applications/version-management/git-and-tools/cgit/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/cgit/default.nix
@@ -76,8 +76,8 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://git.zx2c4.com/cgit/about/;
-    repositories.git = git://git.zx2c4.com/cgit;
+    homepage = "https://git.zx2c4.com/cgit/about/";
+    repositories.git = "git://git.zx2c4.com/cgit";
     description = "Web frontend for git repositories";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/version-management/git-and-tools/darcs-to-git/default.nix b/pkgs/applications/version-management/git-and-tools/darcs-to-git/default.nix
index 454458cdec662..22d289d549af9 100644
--- a/pkgs/applications/version-management/git-and-tools/darcs-to-git/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/darcs-to-git/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Converts a Darcs repository into a Git repository";
-    homepage = http://www.sanityinc.com/articles/converting-darcs-repositories-to-git;
+    homepage = "http://www.sanityinc.com/articles/converting-darcs-repositories-to-git";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/diff-so-fancy/default.nix b/pkgs/applications/version-management/git-and-tools/diff-so-fancy/default.nix
index 96216e76fd315..ae064cb7b5ed3 100644
--- a/pkgs/applications/version-management/git-and-tools/diff-so-fancy/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/diff-so-fancy/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/so-fancy/diff-so-fancy;
+    homepage = "https://github.com/so-fancy/diff-so-fancy";
     description = "Good-looking diffs filter for git";
     license = licenses.mit;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/fast-export/default.nix b/pkgs/applications/version-management/git-and-tools/fast-export/default.nix
index c9fd33312d721..22009f10d44f7 100644
--- a/pkgs/applications/version-management/git-and-tools/fast-export/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/fast-export/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "190107";
 
   src = fetchgit {
-    url = git://repo.or.cz/fast-export.git;
+    url = "git://repo.or.cz/fast-export.git";
     rev = "v${version}";
     sha256 = "14azfps9jd5anivcvfwflgsvqdyy6gm9jy284kzx2ng9f7871d14";
   };
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Import mercurial into git";
-    homepage = https://repo.or.cz/w/fast-export.git;
+    homepage = "https://repo.or.cz/w/fast-export.git";
     license = licenses.gpl2;
     maintainers = [ maintainers.koral ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/version-management/git-and-tools/ghq/default.nix b/pkgs/applications/version-management/git-and-tools/ghq/default.nix
index d0c468ab68ea4..f9d8eab8e55aa 100644
--- a/pkgs/applications/version-management/git-and-tools/ghq/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/ghq/default.nix
@@ -25,7 +25,7 @@ buildGoModule rec {
 
   meta = {
     description = "Remote repository management made easy";
-    homepage = https://github.com/x-motemen/ghq;
+    homepage = "https://github.com/x-motemen/ghq";
     maintainers = with stdenv.lib.maintainers; [ sigma ];
     license = stdenv.lib.licenses.mit;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix
index 3118eaab19b43..ad07a3dba3c8c 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix
@@ -18,7 +18,7 @@ buildPythonApplication rec {
   propagatedBuildInputs = [ pyqt5 git-annex-adapter ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/alpernebbi/git-annex-metadata-gui;
+    homepage = "https://github.com/alpernebbi/git-annex-metadata-gui";
     description = "Graphical interface for git-annex metadata commands";
     maintainers = with maintainers; [ dotlambda ];
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/version-management/git-and-tools/git-annex-remote-dbx/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex-remote-dbx/default.nix
index 8dd44287b5090..addfd1f5041b1 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex-remote-dbx/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex-remote-dbx/default.nix
@@ -19,7 +19,7 @@ buildPythonApplication rec {
 
   meta = with lib; {
     description = "A git-annex special remote for Dropbox";
-    homepage = https://pypi.org/project/git-annex-remote-dbx/;
+    homepage = "https://pypi.org/project/git-annex-remote-dbx/";
     license = licenses.mit;
   };
 }
diff --git a/pkgs/applications/version-management/git-and-tools/git-annex-remote-rclone/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex-remote-rclone/default.nix
index 5d4d9b86d83f4..260e8024a8cca 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex-remote-rclone/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex-remote-rclone/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/DanielDent/git-annex-remote-rclone;
+    homepage = "https://github.com/DanielDent/git-annex-remote-rclone";
     description = "Use rclone supported cloud storage providers with git-annex";
     license = licenses.gpl3;
     maintainers = [ maintainers.montag451 ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-annex-utils/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex-utils/default.nix
index 081341957035e..bcfc33e55e4ca 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex-utils/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex-utils/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   pname = "git-annex-utils";
   version = "0.04-3-g531bb33";
   src = fetchgit {
-    url = http://git.mysteryvortex.com/repositories/git-annex-utils.git;
+    url = "http://git.mysteryvortex.com/repositories/git-annex-utils.git";
     rev = "531bb33";
     sha256 = "1sv7s2ykc840cjwbfn7ayy743643x9i1lvk4cd55w9l052xvzj65";
   };
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       This is a set of utilities that are handy to use with git-annex repositories.
       Currently there is only one utility gadu, a du like utility for annexed files.
     '';
-    homepage = http://git-annex.mysteryvortex.com/git-annex-utils.html;
+    homepage = "http://git-annex.mysteryvortex.com/git-annex-utils.html";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ woffs ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-appraise/default.nix b/pkgs/applications/version-management/git-and-tools/git-appraise/default.nix
index daa0af43879db..7796f08c8a46e 100644
--- a/pkgs/applications/version-management/git-and-tools/git-appraise/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-appraise/default.nix
@@ -16,7 +16,7 @@ buildGoPackage rec {
 
   meta = {
     description = "Distributed code review system for Git repos";
-    homepage = https://github.com/google/git-appraise;
+    homepage = "https://github.com/google/git-appraise";
     license = stdenv.lib.licenses.asl20;
     platforms = stdenv.lib.platforms.all;
     maintainers = [ stdenv.lib.maintainers.vdemeester ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-big-picture/default.nix b/pkgs/applications/version-management/git-and-tools/git-big-picture/default.nix
index 32b9c8a980dcd..cd35c98a96965 100644
--- a/pkgs/applications/version-management/git-and-tools/git-big-picture/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-big-picture/default.nix
@@ -22,7 +22,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = {
     description = "Tool for visualization of Git repositories";
-    homepage = https://github.com/esc/git-big-picture;
+    homepage = "https://github.com/esc/git-big-picture";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nthorne ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-bug/default.nix b/pkgs/applications/version-management/git-and-tools/git-bug/default.nix
index ed0c8680d7530..37adcecd62f4b 100644
--- a/pkgs/applications/version-management/git-and-tools/git-bug/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-bug/default.nix
@@ -30,7 +30,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "Distributed bug tracker embedded in Git";
-    homepage = https://github.com/MichaelMure/git-bug;
+    homepage = "https://github.com/MichaelMure/git-bug";
     license = licenses.gpl3;
     platforms = platforms.all;
     maintainers = with maintainers; [ royneary ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-bz/default.nix b/pkgs/applications/version-management/git-and-tools/git-bz/default.nix
index 5edf9a7b5a53b..7f199894924ee 100644
--- a/pkgs/applications/version-management/git-and-tools/git-bz/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-bz/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation {
       Chromium on Linux.
     '';
     license = licenses.gpl2Plus;
-    homepage = http://git.fishsoup.net/cgit/git-bz/;
+    homepage = "http://git.fishsoup.net/cgit/git-bz/";
 
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/git-cola/default.nix b/pkgs/applications/version-management/git-and-tools/git-cola/default.nix
index 5d1a06e039746..858383f966413 100644
--- a/pkgs/applications/version-management/git-and-tools/git-cola/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-cola/default.nix
@@ -27,7 +27,7 @@ in buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/git-cola/git-cola;
+    homepage = "https://github.com/git-cola/git-cola";
     description = "A sleek and powerful Git GUI";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/version-management/git-and-tools/git-crypt/default.nix b/pkgs/applications/version-management/git-and-tools/git-crypt/default.nix
index df0b1e78d2741..487f9b9625f49 100644
--- a/pkgs/applications/version-management/git-and-tools/git-crypt/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-crypt/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.agwa.name/projects/git-crypt;
+    homepage = "https://www.agwa.name/projects/git-crypt";
     description = "Transparent file encryption in git";
     longDescription = ''
       git-crypt enables transparent encryption and decryption of files in a git
diff --git a/pkgs/applications/version-management/git-and-tools/git-extras/default.nix b/pkgs/applications/version-management/git-and-tools/git-extras/default.nix
index cfdcd80f38b7a..f2afdd941fe46 100644
--- a/pkgs/applications/version-management/git-and-tools/git-extras/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-extras/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/tj/git-extras;
+    homepage = "https://github.com/tj/git-extras";
     description = "GIT utilities -- repo summary, repl, changelog population, author commit percentages and more";
     license = licenses.mit;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-fame/default.nix b/pkgs/applications/version-management/git-and-tools/git-fame/default.nix
index f4aa4878f62f2..782579c704464 100644
--- a/pkgs/applications/version-management/git-and-tools/git-fame/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-fame/default.nix
@@ -13,7 +13,7 @@ bundlerEnv {
     description = ''
       A command-line tool that helps you summarize and pretty-print collaborators based on contributions
       '';
-    homepage    = http://oleander.io/git-fame-rb;
+    homepage    = "http://oleander.io/git-fame-rb";
     license     = licenses.mit;
     maintainers = with maintainers; [ expipiplus1 nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/version-management/git-and-tools/git-ignore/default.nix b/pkgs/applications/version-management/git-and-tools/git-ignore/default.nix
index d8125f604bf6e..5c3b27ad614c3 100644
--- a/pkgs/applications/version-management/git-and-tools/git-ignore/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-ignore/default.nix
@@ -29,7 +29,7 @@ buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Quickly and easily fetch .gitignore templates from gitignore.io";
-    homepage = https://github.com/sondr3/git-ignore;
+    homepage = "https://github.com/sondr3/git-ignore";
     license = licenses.gpl3Plus;
     platforms = platforms.all;
     maintainers = [ maintainers.sondr3 ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-imerge/default.nix b/pkgs/applications/version-management/git-and-tools/git-imerge/default.nix
index 528a96c9903a6..721a7784e9ca7 100644
--- a/pkgs/applications/version-management/git-and-tools/git-imerge/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-imerge/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   makeFlags = [ "PREFIX=" "DESTDIR=$(out)" ] ; 
  
   meta = with stdenv.lib; {
-    homepage = https://github.com/mhagger/git-imerge;
+    homepage = "https://github.com/mhagger/git-imerge";
     description = "Perform a merge between two branches incrementally";
     license = licenses.gpl2;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-machete/default.nix b/pkgs/applications/version-management/git-and-tools/git-machete/default.nix
index 40da9045b817a..42be3f7d35478 100644
--- a/pkgs/applications/version-management/git-and-tools/git-machete/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-machete/default.nix
@@ -24,7 +24,7 @@ buildPythonApplication rec {
   '';
 
   meta = with lib; {
-    homepage = https://github.com/VirtusLab/git-machete;
+    homepage = "https://github.com/VirtusLab/git-machete";
     description = "Git repository organizer and rebase/merge workflow automation tool";
     license = licenses.mit;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-my/default.nix b/pkgs/applications/version-management/git-and-tools/git-my/default.nix
index 8a5ec250932d4..2a8a262bf3048 100644
--- a/pkgs/applications/version-management/git-and-tools/git-my/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-my/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description =
       "List remote branches if they're merged and/or available locally";
-    homepage = https://github.com/davidosomething/git-my;
+    homepage = "https://github.com/davidosomething/git-my";
     license = licenses.free;
     maintainers = with maintainers; [ bb010g ];
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-octopus/default.nix b/pkgs/applications/version-management/git-and-tools/git-octopus/default.nix
index a7abd1eeaf468..d5278d9d24179 100644
--- a/pkgs/applications/version-management/git-and-tools/git-octopus/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-octopus/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   };
 
   meta = {
-    homepage = https://github.com/lesfurets/git-octopus;
+    homepage = "https://github.com/lesfurets/git-octopus";
     description = "The continuous merge workflow";
     license = licenses.lgpl3;
     platforms = platforms.unix;
diff --git a/pkgs/applications/version-management/git-and-tools/git-open/default.nix b/pkgs/applications/version-management/git-and-tools/git-open/default.nix
index 1cc3f365ea884..10f221b638825 100644
--- a/pkgs/applications/version-management/git-and-tools/git-open/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-open/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/paulirish/git-open;
+    homepage = "https://github.com/paulirish/git-open";
     description = "Open the GitHub page or website for a repository in your browser";
     license = licenses.mit;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-radar/default.nix b/pkgs/applications/version-management/git-and-tools/git-radar/default.nix
index 9fb9d4de6e3de..fc4b5850f5c70 100644
--- a/pkgs/applications/version-management/git-and-tools/git-radar/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-radar/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/michaeldfallen/git-radar;
+    homepage = "https://github.com/michaeldfallen/git-radar";
     license = licenses.mit;
     description = "A tool you can add to your prompt to provide at-a-glance information on your git repo";
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/version-management/git-and-tools/git-recent/default.nix b/pkgs/applications/version-management/git-and-tools/git-recent/default.nix
index 628c7dbac7f39..99b64e012eae3 100644
--- a/pkgs/applications/version-management/git-and-tools/git-recent/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-recent/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/paulirish/git-recent;
+    homepage = "https://github.com/paulirish/git-recent";
     description = "See your latest local git branches, formatted real fancy";
     license = licenses.mit;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-remote-gcrypt/default.nix b/pkgs/applications/version-management/git-and-tools/git-remote-gcrypt/default.nix
index 4e6e450657d2a..04787b0ce25b2 100644
--- a/pkgs/applications/version-management/git-and-tools/git-remote-gcrypt/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-remote-gcrypt/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://spwhitton.name/tech/code/git-remote-gcrypt;
+    homepage = "https://spwhitton.name/tech/code/git-remote-gcrypt";
     description = "A git remote helper for GPG-encrypted remotes";
     license = licenses.gpl3;
     maintainers = with maintainers; [ ellis montag451 ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix b/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix
index 28e63c4f1662a..37c06d3a85e22 100644
--- a/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-remote-hg/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = https://github.com/mnauw/git-remote-hg;
+    homepage = "https://github.com/mnauw/git-remote-hg";
     description = "Semi-official Mercurial bridge from Git project";
     license = licenses.gpl2;
     maintainers = [ ];
diff --git a/pkgs/applications/version-management/git-and-tools/git-secret/default.nix b/pkgs/applications/version-management/git-and-tools/git-secret/default.nix
index 8477dfac5856a..140c2647be225 100644
--- a/pkgs/applications/version-management/git-and-tools/git-secret/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-secret/default.nix
@@ -28,7 +28,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "A bash-tool to store your private data inside a git repository";
-    homepage = https://git-secret.io;
+    homepage = "https://git-secret.io";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.lo1tuma ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git-secrets/default.nix b/pkgs/applications/version-management/git-and-tools/git-secrets/default.nix
index 1da8f2a4a5ed7..1beff2a118df0 100644
--- a/pkgs/applications/version-management/git-and-tools/git-secrets/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-secrets/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Prevents you from committing secrets and credentials into git repositories";
-    homepage = https://github.com/awslabs/git-secrets;
+    homepage = "https://github.com/awslabs/git-secrets";
     license = licenses.asl20;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/git-stree/default.nix b/pkgs/applications/version-management/git-and-tools/git-stree/default.nix
index ae40e011f858b..dc636571acc05 100644
--- a/pkgs/applications/version-management/git-and-tools/git-stree/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-stree/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "A better Git subtree helper command";
-    homepage = http://deliciousinsights.github.io/git-stree;
+    homepage = "http://deliciousinsights.github.io/git-stree";
     license = licenses.mit;
     maintainers = [ maintainers.benley ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix b/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix
index 54543bb48419f..708014e4af8df 100644
--- a/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ingydotnet/git-subrepo;
+    homepage = "https://github.com/ingydotnet/git-subrepo";
     description = "Git submodule alternative";
     license = licenses.mit;
     platforms = platforms.unix ++ platforms.darwin;
diff --git a/pkgs/applications/version-management/git-and-tools/git-sync/default.nix b/pkgs/applications/version-management/git-and-tools/git-sync/default.nix
index 7fa15c668099e..bba355095558a 100644
--- a/pkgs/applications/version-management/git-and-tools/git-sync/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-sync/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A script to automatically synchronize a git repository";
-    homepage = https://github.com/simonthum/git-sync;
+    homepage = "https://github.com/simonthum/git-sync";
     maintainers = with stdenv.lib.maintainers; [ imalison ];
     license = stdenv.lib.licenses.cc0;
     platforms = with stdenv.lib.platforms; unix;
diff --git a/pkgs/applications/version-management/git-and-tools/git-test/default.nix b/pkgs/applications/version-management/git-and-tools/git-test/default.nix
index e55799c275212..27f9bcffa34e7 100644
--- a/pkgs/applications/version-management/git-and-tools/git-test/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-test/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Test your commits";
-    homepage = https://github.com/spotify/git-test;
+    homepage = "https://github.com/spotify/git-test";
     license = licenses.asl20;
     maintainers = [ maintainers.marsam ];
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/git/default.nix b/pkgs/applications/version-management/git-and-tools/git/default.nix
index 02df27e745f41..6169c2d0296b2 100644
--- a/pkgs/applications/version-management/git-and-tools/git/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git/default.nix
@@ -330,7 +330,7 @@ stdenv.mkDerivation {
 
 
   meta = {
-    homepage = https://git-scm.com/;
+    homepage = "https://git-scm.com/";
     description = "Distributed version control system";
     license = stdenv.lib.licenses.gpl2;
 
diff --git a/pkgs/applications/version-management/git-and-tools/git2cl/default.nix b/pkgs/applications/version-management/git-and-tools/git2cl/default.nix
index 036f8b4114e23..34417cfaa8c8d 100644
--- a/pkgs/applications/version-management/git-and-tools/git2cl/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git2cl/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://savannah.nongnu.org/projects/git2cl;
+    homepage = "https://savannah.nongnu.org/projects/git2cl";
     description = "Convert git logs to GNU style ChangeLog files";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/gitflow/default.nix b/pkgs/applications/version-management/git-and-tools/gitflow/default.nix
index 57af13f597a77..1307573990a9a 100644
--- a/pkgs/applications/version-management/git-and-tools/gitflow/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/gitflow/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/petervanderdoes/gitflow;
+    homepage = "https://github.com/petervanderdoes/gitflow";
     description = "Extend git with the Gitflow branching model";
     longDescription = ''
       A set of scripts that provide high-level repository operations
diff --git a/pkgs/applications/version-management/git-and-tools/gitstatus/default.nix b/pkgs/applications/version-management/git-and-tools/gitstatus/default.nix
index a444ab05039f6..26b736b8b6fa8 100644
--- a/pkgs/applications/version-management/git-and-tools/gitstatus/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/gitstatus/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "10x faster implementation of `git status` command";
-    homepage = https://github.com/romkatv/gitstatus;
+    homepage = "https://github.com/romkatv/gitstatus";
     license = [ licenses.gpl3 ];
 
     maintainers = with maintainers; [ mmlb hexa ];
diff --git a/pkgs/applications/version-management/git-and-tools/grv/default.nix b/pkgs/applications/version-management/git-and-tools/grv/default.nix
index c1839b591a7e2..8c915762b6ef7 100644
--- a/pkgs/applications/version-management/git-and-tools/grv/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/grv/default.nix
@@ -42,7 +42,7 @@ buildGoPackage {
 
   meta = with stdenv.lib; {
     description = "GRV is a terminal interface for viewing Git repositories";
-    homepage = https://github.com/rgburke/grv;
+    homepage = "https://github.com/rgburke/grv";
     license = licenses.gpl3;
     platforms = platforms.unix;
     maintainers = with maintainers; [ andir ];
diff --git a/pkgs/applications/version-management/git-and-tools/hub/default.nix b/pkgs/applications/version-management/git-and-tools/hub/default.nix
index f868c6b3c8fab..30c5ca8b770e6 100644
--- a/pkgs/applications/version-management/git-and-tools/hub/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/hub/default.nix
@@ -37,7 +37,7 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     description = "Command-line wrapper for git that makes you better at GitHub";
     license = licenses.mit;
-    homepage = https://hub.github.com/;
+    homepage = "https://hub.github.com/";
     maintainers = with maintainers; [ the-kenny globin ];
     platforms = with platforms; unix;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/lab/default.nix b/pkgs/applications/version-management/git-and-tools/lab/default.nix
index 3e47631caf694..5a00d6b1f86fc 100644
--- a/pkgs/applications/version-management/git-and-tools/lab/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/lab/default.nix
@@ -26,7 +26,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "Lab wraps Git or Hub, making it simple to clone, fork, and interact with repositories on GitLab";
-    homepage = https://zaquestion.github.io/lab;
+    homepage = "https://zaquestion.github.io/lab";
     license = licenses.cc0;
     maintainers = with maintainers; [ marsam dtzWill ];
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/qgit/default.nix b/pkgs/applications/version-management/git-and-tools/qgit/default.nix
index 74fad30b8a9a5..24743b21a4dd3 100644
--- a/pkgs/applications/version-management/git-and-tools/qgit/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/qgit/default.nix
@@ -17,7 +17,7 @@ mkDerivation rec {
 
   meta = with lib; {
     license = licenses.gpl2;
-    homepage = https://github.com/tibirna/qgit;
+    homepage = "https://github.com/tibirna/qgit";
     description = "Graphical front-end to Git";
     maintainers = with maintainers; [ peterhoeg markuskowa ];
     inherit (qtbase.meta) platforms;
diff --git a/pkgs/applications/version-management/git-and-tools/subgit/default.nix b/pkgs/applications/version-management/git-and-tools/subgit/default.nix
index ac11e7469e504..1fd70aab46115 100644
--- a/pkgs/applications/version-management/git-and-tools/subgit/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/subgit/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "A tool for a smooth, stress-free SVN to Git migration";
     longDescription = "Create writable Git mirror of a local or remote Subversion repository and use both Subversion and Git as long as you like. You may also do a fast one-time import from Subversion to Git.";
-    homepage = http://subgit.com;
+    homepage = "http://subgit.com";
     license = stdenv.lib.licenses.unfree;
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix b/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix
index 92d7fd4e3dabf..fc33478964f64 100644
--- a/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
   NIX_LDFLAGS = "-lsvn_fs-1";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/svn-all-fast-export/svn2git;
+    homepage = "https://github.com/svn-all-fast-export/svn2git";
     description = "A fast-import based converter for an svn repo to git repos";
     license = licenses.gpl3;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-and-tools/svn2git/default.nix b/pkgs/applications/version-management/git-and-tools/svn2git/default.nix
index 821ecf3e3d8f3..1683a9bea1377 100644
--- a/pkgs/applications/version-management/git-and-tools/svn2git/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/svn2git/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://github.com/nirvdrum/svn2git;
+    homepage = "https://github.com/nirvdrum/svn2git";
     description = "Tool for importing Subversion repositories into git";
     license = stdenv.lib.licenses.mit;
 
diff --git a/pkgs/applications/version-management/git-and-tools/tig/default.nix b/pkgs/applications/version-management/git-and-tools/tig/default.nix
index 25754ef4de942..20d88b399c5a7 100644
--- a/pkgs/applications/version-management/git-and-tools/tig/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/tig/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://jonas.github.io/tig/;
+    homepage = "https://jonas.github.io/tig/";
     description = "Text-mode interface for git";
     maintainers = with maintainers; [ bjornfor domenkozar qknight globin ];
     license = licenses.gpl2;
diff --git a/pkgs/applications/version-management/git-and-tools/transcrypt/default.nix b/pkgs/applications/version-management/git-and-tools/transcrypt/default.nix
index 3b8affb57edf5..589d53b3cfaad 100644
--- a/pkgs/applications/version-management/git-and-tools/transcrypt/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/transcrypt/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
       encryption password can safely commit changes to the repository's
       non-encrypted files.
     '';
-    homepage = https://github.com/elasticdog/transcrypt;
+    homepage = "https://github.com/elasticdog/transcrypt";
     license = licenses.mit;
     maintainers = [ maintainers.elasticdog ];
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/git-crecord/default.nix b/pkgs/applications/version-management/git-crecord/default.nix
index ec03c5bed5b1c..9481f3ebd9283 100644
--- a/pkgs/applications/version-management/git-crecord/default.nix
+++ b/pkgs/applications/version-management/git-crecord/default.nix
@@ -14,7 +14,7 @@ pythonPackages.buildPythonApplication rec {
   propagatedBuildInputs = with pythonPackages; [ docutils ];
 
   meta = {
-    homepage = https://github.com/andrewshadura/git-crecord;
+    homepage = "https://github.com/andrewshadura/git-crecord";
     description = "Git subcommand to interactively select changes to commit or stage";
     license = stdenv.lib.licenses.gpl2Plus;
   };
diff --git a/pkgs/applications/version-management/git-lfs/1.nix b/pkgs/applications/version-management/git-lfs/1.nix
index e3190667259ea..0e0d75b0919cb 100644
--- a/pkgs/applications/version-management/git-lfs/1.nix
+++ b/pkgs/applications/version-management/git-lfs/1.nix
@@ -28,7 +28,7 @@ buildGoPackage rec {
   '';
   meta = with stdenv.lib; {
     description = "Git extension for versioning large files";
-    homepage    = https://git-lfs.github.com/;
+    homepage    = "https://git-lfs.github.com/";
     license     = [ licenses.mit ];
     maintainers = [ maintainers.twey ];
   };
diff --git a/pkgs/applications/version-management/git-repo/default.nix b/pkgs/applications/version-management/git-repo/default.nix
index 93fb65d1031c6..98f88afcdbebc 100644
--- a/pkgs/applications/version-management/git-repo/default.nix
+++ b/pkgs/applications/version-management/git-repo/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
       parts of the development workflow. Repo is not meant to replace Git, only
       to make it easier to work with Git.
     '';
-    homepage = https://android.googlesource.com/tools/repo;
+    homepage = "https://android.googlesource.com/tools/repo";
     license = licenses.asl20;
     maintainers = [ maintainers.primeos ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/version-management/git-review/default.nix b/pkgs/applications/version-management/git-review/default.nix
index c48f455a64a3b..c7702cfa19516 100644
--- a/pkgs/applications/version-management/git-review/default.nix
+++ b/pkgs/applications/version-management/git-review/default.nix
@@ -21,7 +21,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = {
-    homepage = https://github.com/openstack-infra/git-review;
+    homepage = "https://github.com/openstack-infra/git-review";
     description = "Tool to submit code to Gerrit";
     license = stdenv.lib.licenses.asl20;
   };
diff --git a/pkgs/applications/version-management/git-up/default.nix b/pkgs/applications/version-management/git-up/default.nix
index 5812ff8c1d1d5..faed3d25a8adf 100644
--- a/pkgs/applications/version-management/git-up/default.nix
+++ b/pkgs/applications/version-management/git-up/default.nix
@@ -27,7 +27,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/msiemens/PyGitUp;
+    homepage = "https://github.com/msiemens/PyGitUp";
     description = "A git pull replacement that rebases all local branches when pulling.";
     license = licenses.mit;
     maintainers = with maintainers; [ peterhoeg ];
diff --git a/pkgs/applications/version-management/gitinspector/default.nix b/pkgs/applications/version-management/gitinspector/default.nix
index 4467e9746ce9e..ac96706015539 100644
--- a/pkgs/applications/version-management/gitinspector/default.nix
+++ b/pkgs/applications/version-management/gitinspector/default.nix
@@ -16,7 +16,7 @@ python2Packages.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/ejwa/gitinspector;
+    homepage = "https://github.com/ejwa/gitinspector";
     description = "Statistical analysis tool for git repositories";
     license = licenses.gpl3;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/gitkraken/default.nix b/pkgs/applications/version-management/gitkraken/default.nix
index d83c646be208d..c8b906c055aa1 100644
--- a/pkgs/applications/version-management/gitkraken/default.nix
+++ b/pkgs/applications/version-management/gitkraken/default.nix
@@ -108,7 +108,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://www.gitkraken.com/;
+    homepage = "https://www.gitkraken.com/";
     description = "The downright luxurious and most popular Git client for Windows, Mac & Linux";
     license = licenses.unfree;
     platforms = platforms.linux;
diff --git a/pkgs/applications/version-management/gitlab/default.nix b/pkgs/applications/version-management/gitlab/default.nix
index 36859892e8c43..f3ecc6df64004 100644
--- a/pkgs/applications/version-management/gitlab/default.nix
+++ b/pkgs/applications/version-management/gitlab/default.nix
@@ -174,7 +174,7 @@ stdenv.mkDerivation {
   };
 
   meta = with lib; {
-    homepage = http://www.gitlab.com/;
+    homepage = "http://www.gitlab.com/";
     platforms = platforms.linux;
     maintainers = with maintainers; [ fpletz globin krav talyz ];
   } // (if gitlabEnterprise then
diff --git a/pkgs/applications/version-management/gitlab/gitaly/default.nix b/pkgs/applications/version-management/gitlab/gitaly/default.nix
index aea38245c913b..45e7db5be8e35 100644
--- a/pkgs/applications/version-management/gitlab/gitaly/default.nix
+++ b/pkgs/applications/version-management/gitlab/gitaly/default.nix
@@ -68,7 +68,7 @@ in buildGoPackage rec {
   outputs = [ "bin" "out" "ruby" ];
 
   meta = with stdenv.lib; {
-    homepage = https://gitlab.com/gitlab-org/gitaly;
+    homepage = "https://gitlab.com/gitlab-org/gitaly";
     description = "A Git RPC service for handling all the git calls made by GitLab";
     platforms = platforms.linux;
     maintainers = with maintainers; [ roblabla globin fpletz talyz ];
diff --git a/pkgs/applications/version-management/gitlab/gitlab-shell/default.nix b/pkgs/applications/version-management/gitlab/gitlab-shell/default.nix
index 7327f7e02a8f5..40860b13e4dc4 100644
--- a/pkgs/applications/version-management/gitlab/gitlab-shell/default.nix
+++ b/pkgs/applications/version-management/gitlab/gitlab-shell/default.nix
@@ -24,7 +24,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "SSH access and repository management app for GitLab";
-    homepage = http://www.gitlab.com/;
+    homepage = "http://www.gitlab.com/";
     platforms = platforms.linux;
     maintainers = with maintainers; [ fpletz globin talyz ];
     license = licenses.mit;
diff --git a/pkgs/applications/version-management/gitlab/gitlab-workhorse/default.nix b/pkgs/applications/version-management/gitlab/gitlab-workhorse/default.nix
index 0197e8d89b331..491dd868dd93c 100644
--- a/pkgs/applications/version-management/gitlab/gitlab-workhorse/default.nix
+++ b/pkgs/applications/version-management/gitlab/gitlab-workhorse/default.nix
@@ -28,7 +28,7 @@ buildGoPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.gitlab.com/;
+    homepage = "http://www.gitlab.com/";
     platforms = platforms.linux;
     maintainers = with maintainers; [ fpletz globin talyz ];
     license = licenses.mit;
diff --git a/pkgs/applications/version-management/gitless/default.nix b/pkgs/applications/version-management/gitless/default.nix
index fe1cce9ba84bb..0cead50f03266 100644
--- a/pkgs/applications/version-management/gitless/default.nix
+++ b/pkgs/applications/version-management/gitless/default.nix
@@ -17,7 +17,7 @@ buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://gitless.com/;
+    homepage = "https://gitless.com/";
     description = "A version control system built on top of Git";
     license = licenses.gpl2;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/gitolite/default.nix b/pkgs/applications/version-management/gitolite/default.nix
index 9f298e0129ed6..60fed6954dc57 100644
--- a/pkgs/applications/version-management/gitolite/default.nix
+++ b/pkgs/applications/version-management/gitolite/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Finely-grained git repository hosting";
-    homepage    = https://gitolite.com/gitolite/index.html;
+    homepage    = "https://gitolite.com/gitolite/index.html";
     license     = licenses.gpl2;
     platforms   = platforms.unix;
     maintainers = [ maintainers.thoughtpolice maintainers.lassulus maintainers.tomberek ];
diff --git a/pkgs/applications/version-management/gitstats/default.nix b/pkgs/applications/version-management/gitstats/default.nix
index 5d29c8fcb6c30..b7432385a232b 100644
--- a/pkgs/applications/version-management/gitstats/default.nix
+++ b/pkgs/applications/version-management/gitstats/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://gitstats.sourceforge.net/;
+    homepage = "http://gitstats.sourceforge.net/";
     description = "Git history statistics generator";
     license = licenses.gpl2Plus;
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/gogs/default.nix b/pkgs/applications/version-management/gogs/default.nix
index 487026d8e3f96..a35778ac023ff 100644
--- a/pkgs/applications/version-management/gogs/default.nix
+++ b/pkgs/applications/version-management/gogs/default.nix
@@ -48,7 +48,7 @@ buildGoPackage rec {
 
   meta = {
     description = "A painless self-hosted Git service";
-    homepage = https://gogs.io;
+    homepage = "https://gogs.io";
     license = licenses.mit;
     maintainers = [ maintainers.schneefux ];
   };
diff --git a/pkgs/applications/version-management/gource/default.nix b/pkgs/applications/version-management/gource/default.nix
index 2ce855d3a7f8b..683ad8711bf03 100644
--- a/pkgs/applications/version-management/gource/default.nix
+++ b/pkgs/applications/version-management/gource/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://gource.io/;
+    homepage = "https://gource.io/";
     description = "A Software version control visualization tool";
     license = licenses.gpl3Plus;
     longDescription = ''
diff --git a/pkgs/applications/version-management/guitone/default.nix b/pkgs/applications/version-management/guitone/default.nix
index 92bc9f51cac7f..1ff1030150f3e 100644
--- a/pkgs/applications/version-management/guitone/default.nix
+++ b/pkgs/applications/version-management/guitone/default.nix
@@ -26,8 +26,8 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Qt4 based GUI for monotone";
-    homepage = https://guitone.thomaskeller.biz;
-    downloadPage = https://code.monotone.ca/p/guitone/;
+    homepage = "https://guitone.thomaskeller.biz";
+    downloadPage = "https://code.monotone.ca/p/guitone/";
     license = stdenv.lib.licenses.gpl3;
     inherit (qt4.meta) platforms;
   };
diff --git a/pkgs/applications/version-management/meld/default.nix b/pkgs/applications/version-management/meld/default.nix
index be1e8ff841ddd..3c46db6352e86 100644
--- a/pkgs/applications/version-management/meld/default.nix
+++ b/pkgs/applications/version-management/meld/default.nix
@@ -57,7 +57,7 @@ python3.pkgs.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Visual diff and merge tool";
-    homepage = http://meldmerge.org/;
+    homepage = "http://meldmerge.org/";
     license = licenses.gpl2;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ jtojnar mimame ];
diff --git a/pkgs/applications/version-management/mercurial/4.9.nix b/pkgs/applications/version-management/mercurial/4.9.nix
index b8fc767bd3a27..f0918ab69a62d 100644
--- a/pkgs/applications/version-management/mercurial/4.9.nix
+++ b/pkgs/applications/version-management/mercurial/4.9.nix
@@ -60,8 +60,8 @@ in python2Packages.buildPythonApplication {
   meta = {
     inherit (mercurialSrc.meta) version;
     description = "A fast, lightweight SCM system for very large distributed projects";
-    homepage = https://www.mercurial-scm.org;
-    downloadPage = https://www.mercurial-scm.org/release/;
+    homepage = "https://www.mercurial-scm.org";
+    downloadPage = "https://www.mercurial-scm.org/release/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.eraserhd ];
     updateWalker = true;
diff --git a/pkgs/applications/version-management/mercurial/default.nix b/pkgs/applications/version-management/mercurial/default.nix
index 3edfe39943471..85c546147482d 100644
--- a/pkgs/applications/version-management/mercurial/default.nix
+++ b/pkgs/applications/version-management/mercurial/default.nix
@@ -56,8 +56,8 @@ in python3Packages.buildPythonApplication rec {
   meta = {
     inherit version;
     description = "A fast, lightweight SCM system for very large distributed projects";
-    homepage = https://www.mercurial-scm.org;
-    downloadPage = https://www.mercurial-scm.org/release/;
+    homepage = "https://www.mercurial-scm.org";
+    downloadPage = "https://www.mercurial-scm.org/release/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.eelco ];
     updateWalker = true;
diff --git a/pkgs/applications/version-management/monotone-viz/graphviz-2.0.nix b/pkgs/applications/version-management/monotone-viz/graphviz-2.0.nix
index 73acc3a6b36f1..816bfcde67f7f 100644
--- a/pkgs/applications/version-management/monotone-viz/graphviz-2.0.nix
+++ b/pkgs/applications/version-management/monotone-viz/graphviz-2.0.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A program for visualising graphs";
-    homepage = http://www.graphviz.org/;
+    homepage = "http://www.graphviz.org/";
     branch = "2.0";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/version-management/mr/default.nix b/pkgs/applications/version-management/mr/default.nix
index 66e63fcc3750b..05ef7021f164e 100644
--- a/pkgs/applications/version-management/mr/default.nix
+++ b/pkgs/applications/version-management/mr/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
       bzr, darcs, fossil and veracity repositories, and support for
       other version control systems can easily be added.
     '';
-    homepage = http://myrepos.branchable.com/;
+    homepage = "http://myrepos.branchable.com/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ antono henrytill ];
diff --git a/pkgs/applications/version-management/nbstripout/default.nix b/pkgs/applications/version-management/nbstripout/default.nix
index 6668631ca9a4f..07f9b442a74a0 100644
--- a/pkgs/applications/version-management/nbstripout/default.nix
+++ b/pkgs/applications/version-management/nbstripout/default.nix
@@ -31,7 +31,7 @@ buildPythonApplication rec {
   meta = {
     inherit version;
     description = "Strip output from Jupyter and IPython notebooks";
-    homepage = https://github.com/kynan/nbstripout;
+    homepage = "https://github.com/kynan/nbstripout";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ jluttine ];
   };
diff --git a/pkgs/applications/version-management/nitpick/default.nix b/pkgs/applications/version-management/nitpick/default.nix
index db9afdc0a74fd..bcb16ea867881 100644
--- a/pkgs/applications/version-management/nitpick/default.nix
+++ b/pkgs/applications/version-management/nitpick/default.nix
@@ -33,7 +33,7 @@ buildPythonPackage rec {
       should pick. It's intended to be used with source code such that the issues can
       follow the code via whatever VCS or distribution mechanism.
     '';
-    homepage = http://travisbrown.ca/projects/nitpick/docs/nitpick.html;
+    homepage = "http://travisbrown.ca/projects/nitpick/docs/nitpick.html";
     license = with stdenv.lib.licenses; gpl2;
     maintainers = [];
   };
diff --git a/pkgs/applications/version-management/p4v/default.nix b/pkgs/applications/version-management/p4v/default.nix
index 317cbfde85b03..148f122f7c8b0 100644
--- a/pkgs/applications/version-management/p4v/default.nix
+++ b/pkgs/applications/version-management/p4v/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Perforce Visual Client";
-    homepage = https://www.perforce.com;
+    homepage = "https://www.perforce.com";
     license = stdenv.lib.licenses.unfreeRedistributable;
     platforms = [ "x86_64-linux" ];
     maintainers = with stdenv.lib.maintainers; [ nathyong nioncode ];
diff --git a/pkgs/applications/version-management/peru/default.nix b/pkgs/applications/version-management/peru/default.nix
index ea34617dc8b17..4cf2a2e864ca9 100644
--- a/pkgs/applications/version-management/peru/default.nix
+++ b/pkgs/applications/version-management/peru/default.nix
@@ -19,7 +19,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/buildinspace/peru;
+    homepage = "https://github.com/buildinspace/peru";
     description = "A tool for including other people's code in your projects";
     license = licenses.mit;
     platforms = platforms.unix;
diff --git a/pkgs/applications/version-management/pijul/default.nix b/pkgs/applications/version-management/pijul/default.nix
index c6c0f0a52f4b2..74b793f0e77b5 100644
--- a/pkgs/applications/version-management/pijul/default.nix
+++ b/pkgs/applications/version-management/pijul/default.nix
@@ -57,7 +57,7 @@ in rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "A distributed version control system";
-    homepage = https://pijul.org;
+    homepage = "https://pijul.org";
     license = with licenses; [ gpl2Plus ];
     maintainers = [ maintainers.gal_bolle ];
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/rabbitvcs/default.nix b/pkgs/applications/version-management/rabbitvcs/default.nix
index e9950c32549a4..2c58e15c443dd 100644
--- a/pkgs/applications/version-management/rabbitvcs/default.nix
+++ b/pkgs/applications/version-management/rabbitvcs/default.nix
@@ -34,7 +34,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = {
     description = "Graphical tools for working with version control systems";
-    homepage = http://rabbitvcs.org/;
+    homepage = "http://rabbitvcs.org/";
     license = lib.licenses.gpl2Plus;
     platforms = lib.platforms.linux;
     maintainers = [ lib.maintainers.mathnerd314 ];
diff --git a/pkgs/applications/version-management/rapidsvn/default.nix b/pkgs/applications/version-management/rapidsvn/default.nix
index 60486e2011651..fc6a8adc2add4 100644
--- a/pkgs/applications/version-management/rapidsvn/default.nix
+++ b/pkgs/applications/version-management/rapidsvn/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Multi-platform GUI front-end for the Subversion revision system";
-    homepage = http://rapidsvn.tigris.org/;
+    homepage = "http://rapidsvn.tigris.org/";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = [ stdenv.lib.maintainers.viric ];
   };
diff --git a/pkgs/applications/version-management/rcs/default.nix b/pkgs/applications/version-management/rcs/default.nix
index 3283a3c046a4e..404d6ae09bcec 100644
--- a/pkgs/applications/version-management/rcs/default.nix
+++ b/pkgs/applications/version-management/rcs/default.nix
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
   hardeningDisable = stdenv.lib.optional stdenv.cc.isClang "format";
 
   meta = {
-    homepage = https://www.gnu.org/software/rcs/;
+    homepage = "https://www.gnu.org/software/rcs/";
     description = "Revision control system";
     longDescription =
       '' The GNU Revision Control System (RCS) manages multiple revisions of
diff --git a/pkgs/applications/version-management/redmine/default.nix b/pkgs/applications/version-management/redmine/default.nix
index a133a9a6a2a99..8a85f19216330 100644
--- a/pkgs/applications/version-management/redmine/default.nix
+++ b/pkgs/applications/version-management/redmine/default.nix
@@ -36,7 +36,7 @@ in
     '';
 
     meta = with stdenv.lib; {
-      homepage = https://www.redmine.org/;
+      homepage = "https://www.redmine.org/";
       platforms = platforms.linux;
       maintainers = [ maintainers.aanderse ];
       license = licenses.gpl2;
diff --git a/pkgs/applications/version-management/reposurgeon/default.nix b/pkgs/applications/version-management/reposurgeon/default.nix
index 8dd46405d31f8..fb5b72be4eb80 100644
--- a/pkgs/applications/version-management/reposurgeon/default.nix
+++ b/pkgs/applications/version-management/reposurgeon/default.nix
@@ -13,7 +13,7 @@ in mkDerivation rec {
     description = "A tool for editing version-control repository history";
     version = "3.44";
     license = licenses.bsd3;
-    homepage = http://www.catb.org/esr/reposurgeon/;
+    homepage = "http://www.catb.org/esr/reposurgeon/";
     maintainers = with maintainers; [ dfoxfranke ];
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/version-management/sit/default.nix b/pkgs/applications/version-management/sit/default.nix
index aa2cdfab82ac4..67bda7a4fddc6 100644
--- a/pkgs/applications/version-management/sit/default.nix
+++ b/pkgs/applications/version-management/sit/default.nix
@@ -24,7 +24,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Serverless Information Tracker";
-    homepage = https://sit.fyi/;
+    homepage = "https://sit.fyi/";
     license = with licenses; [ asl20 /* or */ mit ];
     maintainers = with maintainers; [ dywedir yrashk ];
     platforms = platforms.all;
diff --git a/pkgs/applications/version-management/smartgithg/default.nix b/pkgs/applications/version-management/smartgithg/default.nix
index df55f20783fa7..51fe70d3952f4 100644
--- a/pkgs/applications/version-management/smartgithg/default.nix
+++ b/pkgs/applications/version-management/smartgithg/default.nix
@@ -86,7 +86,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GUI for Git, Mercurial, Subversion";
-    homepage = https://www.syntevo.com/smartgit/;
+    homepage = "https://www.syntevo.com/smartgit/";
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ jraygauthier ];
diff --git a/pkgs/applications/version-management/sourcehut/builds.nix b/pkgs/applications/version-management/sourcehut/builds.nix
index 07935336c1e29..79aa586007d3a 100644
--- a/pkgs/applications/version-management/sourcehut/builds.nix
+++ b/pkgs/applications/version-management/sourcehut/builds.nix
@@ -52,7 +52,7 @@ in buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/builds.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/builds.sr.ht";
     description = "Continuous integration service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/core.nix b/pkgs/applications/version-management/sourcehut/core.nix
index 8a6c3e6feb4ec..abc2955e27171 100644
--- a/pkgs/applications/version-management/sourcehut/core.nix
+++ b/pkgs/applications/version-management/sourcehut/core.nix
@@ -60,7 +60,7 @@ buildPythonPackage rec {
   dontUseSetuptoolsCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/srht;
+    homepage = "https://git.sr.ht/~sircmpwn/srht";
     description = "Core modules for sr.ht";
     license = licenses.bsd3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/dispatch.nix b/pkgs/applications/version-management/sourcehut/dispatch.nix
index a078c5acb4f32..2ca40c3140800 100644
--- a/pkgs/applications/version-management/sourcehut/dispatch.nix
+++ b/pkgs/applications/version-management/sourcehut/dispatch.nix
@@ -30,7 +30,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://dispatch.sr.ht/~sircmpwn/dispatch.sr.ht;
+    homepage = "https://dispatch.sr.ht/~sircmpwn/dispatch.sr.ht";
     description = "Task dispatcher and service integration tool for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/git.nix b/pkgs/applications/version-management/sourcehut/git.nix
index 93ab499e14e34..09cdd061b38d1 100644
--- a/pkgs/applications/version-management/sourcehut/git.nix
+++ b/pkgs/applications/version-management/sourcehut/git.nix
@@ -73,7 +73,7 @@ in buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/git.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/git.sr.ht";
     description = "Git repository hosting service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/hg.nix b/pkgs/applications/version-management/sourcehut/hg.nix
index 2d57012d071d0..040d7783d4729 100644
--- a/pkgs/applications/version-management/sourcehut/hg.nix
+++ b/pkgs/applications/version-management/sourcehut/hg.nix
@@ -31,7 +31,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/hg.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/hg.sr.ht";
     description = "Mercurial repository hosting service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/lists.nix b/pkgs/applications/version-management/sourcehut/lists.nix
index a7915a917baf3..dc2573bd2451b 100644
--- a/pkgs/applications/version-management/sourcehut/lists.nix
+++ b/pkgs/applications/version-management/sourcehut/lists.nix
@@ -32,7 +32,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/lists.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/lists.sr.ht";
     description = "Mailing list service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/man.nix b/pkgs/applications/version-management/sourcehut/man.nix
index 7ed4c6a5a2488..753ba46d6c335 100644
--- a/pkgs/applications/version-management/sourcehut/man.nix
+++ b/pkgs/applications/version-management/sourcehut/man.nix
@@ -29,7 +29,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/man.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/man.sr.ht";
     description = "Wiki service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/meta.nix b/pkgs/applications/version-management/sourcehut/meta.nix
index 17b4c91446f66..a2a23367a3321 100644
--- a/pkgs/applications/version-management/sourcehut/meta.nix
+++ b/pkgs/applications/version-management/sourcehut/meta.nix
@@ -40,7 +40,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/meta.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/meta.sr.ht";
     description = "Account management service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/paste.nix b/pkgs/applications/version-management/sourcehut/paste.nix
index b629ca9bca301..bd5a9ef5fc6d7 100644
--- a/pkgs/applications/version-management/sourcehut/paste.nix
+++ b/pkgs/applications/version-management/sourcehut/paste.nix
@@ -29,7 +29,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/paste.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/paste.sr.ht";
     description = "Ad-hoc text file hosting service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/scm.nix b/pkgs/applications/version-management/sourcehut/scm.nix
index add791da28403..f2ba55951e5b6 100644
--- a/pkgs/applications/version-management/sourcehut/scm.nix
+++ b/pkgs/applications/version-management/sourcehut/scm.nix
@@ -28,7 +28,7 @@ buildPythonPackage rec {
   dontUseSetuptoolsCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = https://git.sr.ht/~sircmpwn/git.sr.ht;
+    homepage = "https://git.sr.ht/~sircmpwn/git.sr.ht";
     description = "Shared support code for sr.ht source control services.";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/sourcehut/todo.nix b/pkgs/applications/version-management/sourcehut/todo.nix
index 572c2919b16d8..506b287bc9216 100644
--- a/pkgs/applications/version-management/sourcehut/todo.nix
+++ b/pkgs/applications/version-management/sourcehut/todo.nix
@@ -40,7 +40,7 @@ buildPythonPackage rec {
   dontUseSetuptoolsCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = https://todo.sr.ht/~sircmpwn/todo.sr.ht;
+    homepage = "https://todo.sr.ht/~sircmpwn/todo.sr.ht";
     description = "Ticket tracking service for the sr.ht network";
     license = licenses.agpl3;
     maintainers = with maintainers; [ eadwu ];
diff --git a/pkgs/applications/version-management/srcml/default.nix b/pkgs/applications/version-management/srcml/default.nix
index 693af89d97853..6deca94fc15ce 100644
--- a/pkgs/applications/version-management/srcml/default.nix
+++ b/pkgs/applications/version-management/srcml/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Infrastructure for exploration, analysis, and manipulation of source code";
-    homepage = https://www.srcml.org;
+    homepage = "https://www.srcml.org";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ leenaars ];
   };
diff --git a/pkgs/applications/version-management/sublime-merge/common.nix b/pkgs/applications/version-management/sublime-merge/common.nix
index c095aa49eafb5..173333fb75c73 100644
--- a/pkgs/applications/version-management/sublime-merge/common.nix
+++ b/pkgs/applications/version-management/sublime-merge/common.nix
@@ -109,7 +109,7 @@ in stdenv.mkDerivation (rec {
 
   meta = with stdenv.lib; {
     description = "Git client from the makers of Sublime Text";
-    homepage = https://www.sublimemerge.com;
+    homepage = "https://www.sublimemerge.com";
     maintainers = with maintainers; [ zookatron ];
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/version-management/tkcvs/default.nix b/pkgs/applications/version-management/tkcvs/default.nix
index 48558c15dc1c4..d2a7299bcd9ee 100644
--- a/pkgs/applications/version-management/tkcvs/default.nix
+++ b/pkgs/applications/version-management/tkcvs/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation
   name = "tkcvs-8.2.1";
 
   src = fetchurl {
-    url = mirror://sourceforge/tkcvs/tkcvs_8_2_1.tar.gz;
+    url = "mirror://sourceforge/tkcvs/tkcvs_8_2_1.tar.gz";
     sha256 = "0kvj6rcx1153wq0n1lmd8imbrki6xy5wxghwzlb9i15l65sclg3i";
   };
 
@@ -20,7 +20,7 @@ stdenv.mkDerivation
   '';
 
   meta = {
-    homepage = https://tkcvs.sourceforge.io;
+    homepage = "https://tkcvs.sourceforge.io";
     description = "TCL/TK GUI for cvs and subversion";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/version-management/tortoisehg/default.nix b/pkgs/applications/version-management/tortoisehg/default.nix
index 653db11ab5d32..2743d4f827fb9 100644
--- a/pkgs/applications/version-management/tortoisehg/default.nix
+++ b/pkgs/applications/version-management/tortoisehg/default.nix
@@ -44,7 +44,7 @@ in python3Packages.buildPythonApplication {
 
     meta = {
       description = "Qt based graphical tool for working with Mercurial";
-      homepage = https://tortoisehg.bitbucket.io/;
+      homepage = "https://tortoisehg.bitbucket.io/";
       license = lib.licenses.gpl2;
       platforms = lib.platforms.linux;
       maintainers = with lib.maintainers; [ danbst ];
diff --git a/pkgs/applications/version-management/vcprompt/default.nix b/pkgs/applications/version-management/vcprompt/default.nix
index 2ad6b6f2f62c5..85fe83996da31 100644
--- a/pkgs/applications/version-management/vcprompt/default.nix
+++ b/pkgs/applications/version-management/vcprompt/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       A little C program that prints a short string with barebones information
       about the current working directory for various version control systems
     '';
-    homepage    = http://hg.gerg.ca/vcprompt;
+    homepage    = "http://hg.gerg.ca/vcprompt";
     maintainers = with maintainers; [ cstrahan ];
     platforms   = with platforms; linux ++ darwin;
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/version-management/vcsh/default.nix b/pkgs/applications/version-management/vcsh/default.nix
index 8a014a6339301..c4af492decea9 100644
--- a/pkgs/applications/version-management/vcsh/default.nix
+++ b/pkgs/applications/version-management/vcsh/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Version Control System for $HOME";
-    homepage = https://github.com/RichiH/vcsh;
+    homepage = "https://github.com/RichiH/vcsh";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ttuegel ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/version-management/yadm/default.nix b/pkgs/applications/version-management/yadm/default.nix
index aab47ed1327b5..fab89d663fa7f 100644
--- a/pkgs/applications/version-management/yadm/default.nix
+++ b/pkgs/applications/version-management/yadm/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://github.com/TheLocehiliosan/yadm;
+    homepage = "https://github.com/TheLocehiliosan/yadm";
     description = "Yet Another Dotfiles Manager";
     longDescription = ''
       yadm is a dotfile management tool with 3 main features:
diff --git a/pkgs/applications/video/avidemux/default.nix b/pkgs/applications/video/avidemux/default.nix
index 00bdb370aae4e..9374d2dbc7902 100644
--- a/pkgs/applications/video/avidemux/default.nix
+++ b/pkgs/applications/video/avidemux/default.nix
@@ -89,7 +89,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://fixounet.free.fr/avidemux/;
+    homepage = "http://fixounet.free.fr/avidemux/";
     description = "Free video editor designed for simple video editing tasks";
     maintainers = with maintainers; [ abbradar ma27 ];
     # "CPU not supported" errors on AArch64
diff --git a/pkgs/applications/video/avxsynth/default.nix b/pkgs/applications/video/avxsynth/default.nix
index f16f655b95db3..2cccbae43d2ca 100644
--- a/pkgs/applications/video/avxsynth/default.nix
+++ b/pkgs/applications/video/avxsynth/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A script system that allows advanced non-linear editing";
-    homepage = https://github.com/avxsynth/avxsynth;
+    homepage = "https://github.com/avxsynth/avxsynth";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ codyopel ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/bino3d/default.nix b/pkgs/applications/video/bino3d/default.nix
index c3f5d7d796d48..4554bea61571c 100644
--- a/pkgs/applications/video/bino3d/default.nix
+++ b/pkgs/applications/video/bino3d/default.nix
@@ -17,7 +17,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Stereoscopic 3D and multi-display video player";
-    homepage = https://bino3d.org/;
+    homepage = "https://bino3d.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/bomi/default.nix b/pkgs/applications/video/bomi/default.nix
index a9d98a9a2a44c..7ba37936c686e 100644
--- a/pkgs/applications/video/bomi/default.nix
+++ b/pkgs/applications/video/bomi/default.nix
@@ -109,7 +109,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Powerful and easy-to-use multimedia player";
-    homepage = https://bomi-player.github.io/;
+    homepage = "https://bomi-player.github.io/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.abbradar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/byzanz/default.nix b/pkgs/applications/video/byzanz/default.nix
index 10685a72f1098..f5d40a5c34cc5 100644
--- a/pkgs/applications/video/byzanz/default.nix
+++ b/pkgs/applications/video/byzanz/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "byzanz";
 
   src = fetchgit {
-    url = git://github.com/GNOME/byzanz;
+    url = "git://github.com/GNOME/byzanz";
     rev = "1875a7f6a3903b83f6b1d666965800f47db9286a";
     sha256 = "0a72fw2mxl8vdcdnzy0bwis4jk28pd7nc8qgr4vhyw5pd48dynvh";
   };
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Tool to record a running X desktop to an animation suitable for presentation in a web browser";
-    homepage = https://github.com/GNOME/byzanz;
+    homepage = "https://github.com/GNOME/byzanz";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ ];
diff --git a/pkgs/applications/video/cinelerra/default.nix b/pkgs/applications/video/cinelerra/default.nix
index 36ad39bd37c18..22533b182a0f3 100644
--- a/pkgs/applications/video/cinelerra/default.nix
+++ b/pkgs/applications/video/cinelerra/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Video Editor";
-    homepage = http://www.cinelerra.org;
+    homepage = "http://www.cinelerra.org";
     maintainers = [ stdenv.lib.maintainers.marcweber ];
     license = stdenv.lib.licenses.gpl2;
   };
diff --git a/pkgs/applications/video/clickshare-csc1/default.nix b/pkgs/applications/video/clickshare-csc1/default.nix
index 53d257dd9d070..e4e72704fb0b3 100644
--- a/pkgs/applications/video/clickshare-csc1/default.nix
+++ b/pkgs/applications/video/clickshare-csc1/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   version = "01.07.00.033";
   src = fetchurl {
     name = "clickshare-csc1-${version}.zip";
-    url = https://www.barco.com/services/website/de/TdeFiles/Download?FileNumber=R33050020&TdeType=3&MajorVersion=01&MinorVersion=07&PatchVersion=00&BuildVersion=033;
+    url = "https://www.barco.com/services/website/de/TdeFiles/Download?FileNumber=R33050020&TdeType=3&MajorVersion=01&MinorVersion=07&PatchVersion=00&BuildVersion=033";
     sha256 = "0h4jqidqvk4xkaky5bizi7ilz4qzl2mh68401j21y3djnzx09br3";
   };
 
@@ -106,8 +106,8 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://www.barco.com/de/support/clickshare-csc-1/drivers;
-    downloadPage = https://www.barco.com/de/Support/software/R33050020;
+    homepage = "https://www.barco.com/de/support/clickshare-csc-1/drivers";
+    downloadPage = "https://www.barco.com/de/Support/software/R33050020";
     platforms = [ "i686-linux" "x86_64-linux" ];
     license = lib.licenses.unfree;
     maintainers = [ lib.maintainers.yarny ];
diff --git a/pkgs/applications/video/coriander/default.nix b/pkgs/applications/video/coriander/default.nix
index a2de52468f29f..a094bfd904abd 100644
--- a/pkgs/applications/video/coriander/default.nix
+++ b/pkgs/applications/video/coriander/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
   buildInputs = [ glib gtk2 libgnomeui libXv libraw1394 libdc1394 SDL GConf ];
   
   meta = {
-    homepage = https://damien.douxchamps.net/ieee1394/coriander/;
+    homepage = "https://damien.douxchamps.net/ieee1394/coriander/";
     description = "GUI for controlling a Digital Camera through the IEEE1394 bus";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/video/devede/default.nix b/pkgs/applications/video/devede/default.nix
index aee6fab77a23e..2ec2f68d12853 100644
--- a/pkgs/applications/video/devede/default.nix
+++ b/pkgs/applications/video/devede/default.nix
@@ -46,7 +46,7 @@ in buildPythonApplication {
 
   meta = with stdenv.lib; {
     description = "DVD Creator for Linux";
-    homepage = http://www.rastersoft.com/programas/devede.html;
+    homepage = "http://www.rastersoft.com/programas/devede.html";
     license = licenses.gpl3;
     maintainers = [ maintainers.bdimcheff ];
   };
diff --git a/pkgs/applications/video/dvb-apps/default.nix b/pkgs/applications/video/dvb-apps/default.nix
index a032ef654aa3d..8fa88e3244947 100644
--- a/pkgs/applications/video/dvb-apps/default.nix
+++ b/pkgs/applications/video/dvb-apps/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Linux DVB API applications and utilities";
-    homepage = https://linuxtv.org/;
+    homepage = "https://linuxtv.org/";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2;
     broken = true; # 2018-04-10
diff --git a/pkgs/applications/video/dvd-slideshow/default.nix b/pkgs/applications/video/dvd-slideshow/default.nix
index 61894bd22f8ef..f6e336240d3de 100644
--- a/pkgs/applications/video/dvd-slideshow/default.nix
+++ b/pkgs/applications/video/dvd-slideshow/default.nix
@@ -64,7 +64,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "Suite of command line programs that creates a slideshow-style video from groups of pictures";
-    homepage = http://dvd-slideshow.sourceforge.net/wiki/Main_Page;
+    homepage = "http://dvd-slideshow.sourceforge.net/wiki/Main_Page";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.robbinch ];
diff --git a/pkgs/applications/video/dvdauthor/default.nix b/pkgs/applications/video/dvdauthor/default.nix
index c15a892e69813..6be1d8a1633f2 100644
--- a/pkgs/applications/video/dvdauthor/default.nix
+++ b/pkgs/applications/video/dvdauthor/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec{
 
   meta = with stdenv.lib; {
     description = "Tools for generating DVD files to be played on standalone DVD players";
-    homepage = http://dvdauthor.sourceforge.net/;
+    homepage = "http://dvdauthor.sourceforge.net/";
     license = licenses.gpl2;
     platforms = platforms.linux ++ platforms.darwin;
   };
diff --git a/pkgs/applications/video/dvdbackup/default.nix b/pkgs/applications/video/dvdbackup/default.nix
index 54be20d5faffc..e129031fd49c4 100644
--- a/pkgs/applications/video/dvdbackup/default.nix
+++ b/pkgs/applications/video/dvdbackup/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A tool to rip video DVDs from the command line";
-    homepage = http://dvdbackup.sourceforge.net/;
+    homepage = "http://dvdbackup.sourceforge.net/";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = [ stdenv.lib.maintainers.bradediger ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/video/dvdstyler/default.nix b/pkgs/applications/video/dvdstyler/default.nix
index 495501e0c1872..b78f9ed816b78 100644
--- a/pkgs/applications/video/dvdstyler/default.nix
+++ b/pkgs/applications/video/dvdstyler/default.nix
@@ -77,7 +77,7 @@ stdenv.mkDerivation rec {
     - copy any menu object or whole menu
     - customize navigation using DVD scripting
     '';
-    homepage = http://www.dvdstyler.org/;
+    homepage = "http://www.dvdstyler.org/";
     license = with licenses; gpl2;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/video/gnome-mplayer/default.nix b/pkgs/applications/video/gnome-mplayer/default.nix
index 3e26b4d68c229..3bd7785f201ca 100644
--- a/pkgs/applications/video/gnome-mplayer/default.nix
+++ b/pkgs/applications/video/gnome-mplayer/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Gnome MPlayer, a simple GUI for MPlayer";
-    homepage = https://sites.google.com/site/kdekorte2/gnomemplayer;
+    homepage = "https://sites.google.com/site/kdekorte2/gnomemplayer";
     license = licenses.gpl2;
     maintainers = with maintainers; [];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/gnomecast/default.nix b/pkgs/applications/video/gnomecast/default.nix
index d840f43163cf5..3b7e8913c5d1d 100644
--- a/pkgs/applications/video/gnomecast/default.nix
+++ b/pkgs/applications/video/gnomecast/default.nix
@@ -22,7 +22,7 @@ buildPythonApplication rec {
 
   meta = with lib; {
     description = "A native Linux GUI for Chromecasting local files";
-    homepage = https://github.com/keredson/gnomecast;
+    homepage = "https://github.com/keredson/gnomecast";
     license = with licenses; [ gpl3 ];
   };
 }
diff --git a/pkgs/applications/video/gpac/default.nix b/pkgs/applications/video/gpac/default.nix
index f81f394ed0b8a..e587a5999054d 100644
--- a/pkgs/applications/video/gpac/default.nix
+++ b/pkgs/applications/video/gpac/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
       A multimedia packager, called MP4Box,
       And some server tools included in MP4Box and MP42TS applications.
     '';
-    homepage = https://gpac.wp.imt.fr;
+    homepage = "https://gpac.wp.imt.fr";
     license = licenses.lgpl21;
     maintainers = with maintainers; [ bluescreen303 mgdelacroix ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/handbrake/default.nix b/pkgs/applications/video/handbrake/default.nix
index ab70802066327..9b51746b14c92 100644
--- a/pkgs/applications/video/handbrake/default.nix
+++ b/pkgs/applications/video/handbrake/default.nix
@@ -109,7 +109,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://handbrake.fr/;
+    homepage = "http://handbrake.fr/";
     description = "A tool for converting video files and ripping DVDs";
     longDescription = ''
       Tool for converting and remuxing video files
diff --git a/pkgs/applications/video/k9copy/default.nix b/pkgs/applications/video/k9copy/default.nix
index 037331cad9e07..317505185d0d6 100644
--- a/pkgs/applications/video/k9copy/default.nix
+++ b/pkgs/applications/video/k9copy/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "DVD backup and DVD authoring program";
-    homepage = http://k9copy-reloaded.sourceforge.net/;
+    homepage = "http://k9copy-reloaded.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ flosse ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/video/kazam/default.nix b/pkgs/applications/video/kazam/default.nix
index f38046cf8e1a2..0cdd3db852571 100644
--- a/pkgs/applications/video/kazam/default.nix
+++ b/pkgs/applications/video/kazam/default.nix
@@ -32,7 +32,7 @@ python3.pkgs.buildPythonApplication rec {
     })
     # https://github.com/hzbd/kazam/pull/21
     (fetchpatch {
-      url = https://github.com/hzbd/kazam/commit/37e53a5aa61f4223a9ea03ceeda26eeba2b9d37b.patch;
+      url = "https://github.com/hzbd/kazam/commit/37e53a5aa61f4223a9ea03ceeda26eeba2b9d37b.patch";
       sha256 = "1q5dpmdm6cvgzw8xa7bwclnqa05xc73ja1lszwmwv5glyik0fk4z";
     })
   ];
@@ -42,7 +42,7 @@ python3.pkgs.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A screencasting program created with design in mind";
-    homepage = https://code.launchpad.net/kazam;
+    homepage = "https://code.launchpad.net/kazam";
     license = licenses.lgpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.domenkozar ];
diff --git a/pkgs/applications/video/kino/default.nix b/pkgs/applications/video/kino/default.nix
index 2a0af3ed59e4c..3f41e73dfa75c 100644
--- a/pkgs/applications/video/kino/default.nix
+++ b/pkgs/applications/video/kino/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation {
   name = "kino-1.3.4";
 
   src = fetchurl {
-    url = mirror://sourceforge/kino/kino-1.3.4.tar.gz;
+    url = "mirror://sourceforge/kino/kino-1.3.4.tar.gz";
     sha256 = "020s05k0ma83rq2kfs8x474pqicaqp9spar81qc816ddfrnh8k8i";
   };
 
@@ -88,7 +88,7 @@ stdenv.mkDerivation {
 
   meta = {
       description = "Non-linear DV editor for GNU/Linux";
-      homepage = http://www.kinodv.org/;
+      homepage = "http://www.kinodv.org/";
       license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/video/kmplayer/default.nix b/pkgs/applications/video/kmplayer/default.nix
index 33ff1821640bf..274ff7cdeab79 100644
--- a/pkgs/applications/video/kmplayer/default.nix
+++ b/pkgs/applications/video/kmplayer/default.nix
@@ -42,7 +42,7 @@ mkDerivation rec {
   meta = with lib; {
     description = "MPlayer front-end for KDE";
     license = with licenses; [ gpl2 lgpl2 fdl12 ];
-    homepage = https://kmplayer.kde.org/;
+    homepage = "https://kmplayer.kde.org/";
     maintainers = with maintainers; [ sander zraexy ];
   };
 }
diff --git a/pkgs/applications/video/kodi/default.nix b/pkgs/applications/video/kodi/default.nix
index fcb6ed4860baa..d13dd3201a322 100644
--- a/pkgs/applications/video/kodi/default.nix
+++ b/pkgs/applications/video/kodi/default.nix
@@ -251,7 +251,7 @@ in stdenv.mkDerivation {
 
     meta = with stdenv.lib; {
       description = "Media center";
-      homepage    = https://kodi.tv/;
+      homepage    = "https://kodi.tv/";
       license     = licenses.gpl2;
       platforms   = platforms.linux;
       maintainers = with maintainers; [ domenkozar titanous edwtjo peterhoeg sephalon ];
diff --git a/pkgs/applications/video/kodi/plugins.nix b/pkgs/applications/video/kodi/plugins.nix
index 5dc0233567205..64521d75e4d65 100644
--- a/pkgs/applications/video/kodi/plugins.nix
+++ b/pkgs/applications/video/kodi/plugins.nix
@@ -109,7 +109,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://forum.kodi.tv/showthread.php?tid=85724;
+      homepage = "https://forum.kodi.tv/showthread.php?tid=85724";
       description = "A program launcher for Kodi";
       longDescription = ''
         Advanced Launcher allows you to start any Linux, Windows and
@@ -139,7 +139,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://forum.kodi.tv/showthread.php?tid=287826;
+      homepage = "https://forum.kodi.tv/showthread.php?tid=287826";
       description = "A program launcher for Kodi";
       longDescription = ''
         Advanced Emulator Launcher is a multi-emulator front-end for Kodi
@@ -200,7 +200,7 @@ let self = rec {
       sha256 = "1dvff24fbas25k5kvca4ssks9l1g5rfa3hl8lqxczkaqi3pp41j5";
     };
     meta = {
-      homepage = https://forum.kodi.tv/showthread.php?tid=258159;
+      homepage = "https://forum.kodi.tv/showthread.php?tid=258159";
       description = "A ROM launcher for Kodi that uses HyperSpin assets.";
       maintainers = with maintainers; [ edwtjo ];
     };
@@ -273,7 +273,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://forum.kodi.tv/showthread.php?tid=67110;
+      homepage = "https://forum.kodi.tv/showthread.php?tid=67110";
       description = "Watch content from SVT Play";
       longDescription = ''
         With this addon you can stream content from SVT Play
@@ -325,7 +325,7 @@ let self = rec {
     propagatedBuildInputs = [ steam ];
 
     meta = {
-      homepage = https://forum.kodi.tv/showthread.php?tid=157499;
+      homepage = "https://forum.kodi.tv/showthread.php?tid=157499";
       description = "Launch Steam in Big Picture Mode from Kodi";
       longDescription = ''
         This add-on will close/minimise Kodi, launch Steam in Big
@@ -352,7 +352,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://forum.kodi.tv/showthread.php?tid=187421;
+      homepage = "https://forum.kodi.tv/showthread.php?tid=187421";
       description = "A comic book reader";
       maintainers = with maintainers; [ edwtjo ];
     };
@@ -372,7 +372,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://github.com/kodi-pvr/pvr.hts;
+      homepage = "https://github.com/kodi-pvr/pvr.hts";
       description = "Kodi's Tvheadend HTSP client addon";
       platforms = platforms.all;
       maintainers = with maintainers; [ cpages ];
@@ -394,7 +394,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://github.com/kodi-pvr/pvr.hdhomerun;
+      homepage = "https://github.com/kodi-pvr/pvr.hdhomerun";
       description = "Kodi's HDHomeRun PVR client addon";
       platforms = platforms.all;
       maintainers = with maintainers; [ titanous ];
@@ -418,7 +418,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://github.com/kodi-pvr/pvr.iptvsimple;
+      homepage = "https://github.com/kodi-pvr/pvr.iptvsimple";
       description = "Kodi's IPTV Simple client addon";
       platforms = platforms.all;
       maintainers = with maintainers; [ ];
@@ -442,7 +442,7 @@ let self = rec {
     };
 
     meta = {
-      homepage = https://github.com/osmc/skin.osmc;
+      homepage = "https://github.com/osmc/skin.osmc";
       description = "The default skin for OSMC";
       platforms = platforms.all;
       maintainers = with maintainers; [ worldofpeace ];
@@ -499,7 +499,7 @@ let self = rec {
     '';
 
     meta = {
-      homepage = https://github.com/peak3d/inputstream.adaptive;
+      homepage = "https://github.com/peak3d/inputstream.adaptive";
       description = "Kodi inputstream addon for several manifest types";
       platforms = platforms.all;
       maintainers = with maintainers; [ sephalon ];
diff --git a/pkgs/applications/video/linuxstopmotion/default.nix b/pkgs/applications/video/linuxstopmotion/default.nix
index 0a422bb7f50c2..3a2d1b79e9e00 100644
--- a/pkgs/applications/video/linuxstopmotion/default.nix
+++ b/pkgs/applications/video/linuxstopmotion/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Create stop-motion animation movies";
-    homepage = http://linuxstopmotion.org/;
+    homepage = "http://linuxstopmotion.org/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/video/lxdvdrip/default.nix b/pkgs/applications/video/lxdvdrip/default.nix
index 8287a176ce633..16ade40f0b5ab 100644
--- a/pkgs/applications/video/lxdvdrip/default.nix
+++ b/pkgs/applications/video/lxdvdrip/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = { 
     description = "Command line tool to make a copy from a video DVD for private use";
-    homepage = https://sourceforge.net/projects/lxdvdrip;
+    homepage = "https://sourceforge.net/projects/lxdvdrip";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/video/makemkv/default.nix b/pkgs/applications/video/makemkv/default.nix
index 5423ffcb1422e..4816f17618b81 100644
--- a/pkgs/applications/video/makemkv/default.nix
+++ b/pkgs/applications/video/makemkv/default.nix
@@ -53,7 +53,7 @@ in mkDerivation {
       expiration date.
     '';
     license = licenses.unfree;
-    homepage = http://makemkv.com;
+    homepage = "http://makemkv.com";
     platforms = [ "x86_64-linux" ];
     maintainers = [ maintainers.titanous ];
   };
diff --git a/pkgs/applications/video/manim/default.nix b/pkgs/applications/video/manim/default.nix
index 0d263f402b338..470908377b505 100644
--- a/pkgs/applications/video/manim/default.nix
+++ b/pkgs/applications/video/manim/default.nix
@@ -57,7 +57,7 @@ buildPythonApplication rec {
       create precise animations programmatically, as seen in the videos of
       3Blue1Brown on YouTube.
     '';
-    homepage = https://github.com/3b1b/manim;
+    homepage = "https://github.com/3b1b/manim";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ johnazoidberg ];
   };
diff --git a/pkgs/applications/video/mapmap/default.nix b/pkgs/applications/video/mapmap/default.nix
index c302ae1730fea..20ab4d750326a 100644
--- a/pkgs/applications/video/mapmap/default.nix
+++ b/pkgs/applications/video/mapmap/default.nix
@@ -53,7 +53,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open source video mapping software";
-    homepage = https://github.com/mapmapteam/mapmap;
+    homepage = "https://github.com/mapmapteam/mapmap";
     license = licenses.gpl3;
     maintainers = [ maintainers.erictapen ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/mediathekview/default.nix b/pkgs/applications/video/mediathekview/default.nix
index 9554105f20c21..7c7ceb914ae77 100644
--- a/pkgs/applications/video/mediathekview/default.nix
+++ b/pkgs/applications/video/mediathekview/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Offers access to the Mediathek of different tv stations (ARD, ZDF, Arte, etc.)";
-    homepage = https://mediathekview.de/;
+    homepage = "https://mediathekview.de/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ moredread ];
     platforms = platforms.all;
diff --git a/pkgs/applications/video/minitube/default.nix b/pkgs/applications/video/minitube/default.nix
index 635779187a81f..690b8355340c2 100644
--- a/pkgs/applications/video/minitube/default.nix
+++ b/pkgs/applications/video/minitube/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
       you an endless video stream. Minitube is not about cloning the YouTube
       website, it aims to create a new TV-like experience.
     '';
-    homepage = https://flavio.tordini.org/minitube;
+    homepage = "https://flavio.tordini.org/minitube";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/video/mkvtoolnix/default.nix b/pkgs/applications/video/mkvtoolnix/default.nix
index a1bdb3db98b04..2e97505f3f166 100644
--- a/pkgs/applications/video/mkvtoolnix/default.nix
+++ b/pkgs/applications/video/mkvtoolnix/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Cross-platform tools for Matroska";
-    homepage    = http://www.bunkus.org/videotools/mkvtoolnix/;
+    homepage    = "http://www.bunkus.org/videotools/mkvtoolnix/";
     license     = licenses.gpl2;
     maintainers = with maintainers; [ codyopel rnhmjoj ];
     platforms   = platforms.linux
diff --git a/pkgs/applications/video/motion/default.nix b/pkgs/applications/video/motion/default.nix
index dafc6abdb0a34..dd0510f70c361 100644
--- a/pkgs/applications/video/motion/default.nix
+++ b/pkgs/applications/video/motion/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Monitors the video signal from cameras";
-    homepage = https://motion-project.github.io/;
+    homepage = "https://motion-project.github.io/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ puffnfresh veprbl ];
   };
diff --git a/pkgs/applications/video/mpc-qt/default.nix b/pkgs/applications/video/mpc-qt/default.nix
index efa495a45afe6..ff7df19bec150 100644
--- a/pkgs/applications/video/mpc-qt/default.nix
+++ b/pkgs/applications/video/mpc-qt/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Media Player Classic Qute Theater";
-    homepage = https://github.com/cmdrkotori/mpc-qt;
+    homepage = "https://github.com/cmdrkotori/mpc-qt";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = with maintainers; [ romildo ];
diff --git a/pkgs/applications/video/mplayer/default.nix b/pkgs/applications/video/mplayer/default.nix
index f5559e3fb6c00..5a72fe91ddde3 100644
--- a/pkgs/applications/video/mplayer/default.nix
+++ b/pkgs/applications/video/mplayer/default.nix
@@ -58,7 +58,7 @@ let
 
   codecs_src =
     let
-      dir = http://www.mplayerhq.hu/MPlayer/releases/codecs/;
+      dir = "http://www.mplayerhq.hu/MPlayer/releases/codecs/";
       version = "20071007";
     in
     if stdenv.hostPlatform.system == "i686-linux" then fetchurl {
@@ -217,7 +217,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A movie player that supports many video formats";
-    homepage = http://mplayerhq.hu;
+    homepage = "http://mplayerhq.hu";
     license = "GPL";
     maintainers = [ stdenv.lib.maintainers.eelco ];
     platforms = [ "i686-linux" "x86_64-linux" "x86_64-darwin" ];
diff --git a/pkgs/applications/video/mpv/default.nix b/pkgs/applications/video/mpv/default.nix
index c24d25634a1b3..d5ceeb65a9e57 100644
--- a/pkgs/applications/video/mpv/default.nix
+++ b/pkgs/applications/video/mpv/default.nix
@@ -225,7 +225,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A media player that supports many video formats (MPlayer and mplayer2 fork)";
-    homepage = https://mpv.io;
+    homepage = "https://mpv.io";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ AndersonTorres fpletz globin ma27 tadeokondrak ];
     platforms = platforms.darwin ++ platforms.linux;
diff --git a/pkgs/applications/video/mpv/scripts/convert.nix b/pkgs/applications/video/mpv/scripts/convert.nix
index faa21326fc0e8..a89b4ec0889a7 100644
--- a/pkgs/applications/video/mpv/scripts/convert.nix
+++ b/pkgs/applications/video/mpv/scripts/convert.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Convert parts of a video while you are watching it in mpv";
-    homepage = https://gist.github.com/Zehkul/25ea7ae77b30af959be0;
+    homepage = "https://gist.github.com/Zehkul/25ea7ae77b30af959be0";
     maintainers = [ lib.maintainers.Profpatsch ];
     longDescription = ''
       When this script is loaded into mpv, you can hit Alt+W to mark the beginning
diff --git a/pkgs/applications/video/mythtv/default.nix b/pkgs/applications/video/mythtv/default.nix
index 2c73d3e734ccb..2f1d3a3a1c91c 100644
--- a/pkgs/applications/video/mythtv/default.nix
+++ b/pkgs/applications/video/mythtv/default.nix
@@ -37,7 +37,7 @@ mkDerivation rec {
     ++ stdenv.lib.optionals (!enableXnvctrl) [  "--disable-xnvctrl" ];
 
   meta = with stdenv.lib; {
-    homepage = https://www.mythtv.org/;
+    homepage = "https://www.mythtv.org/";
     description = "Open Source DVR";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/natron/default.nix b/pkgs/applications/video/natron/default.nix
index 4617d1d17dc04..4e6c9f7ea5a2e 100644
--- a/pkgs/applications/video/natron/default.nix
+++ b/pkgs/applications/video/natron/default.nix
@@ -35,15 +35,15 @@ let
       '';
     };
   lodepngcpp = fetchurl {
-    url = https://raw.githubusercontent.com/lvandeve/lodepng/a70c086077c0eaecbae3845e4da4424de5f43361/lodepng.cpp;
+    url = "https://raw.githubusercontent.com/lvandeve/lodepng/a70c086077c0eaecbae3845e4da4424de5f43361/lodepng.cpp";
     sha256 = "1dxkkr4jbmvlwfr7m16i1mgcj1pqxg9s1a7y3aavs9rrk0ki8ys2";
   };
   lodepngh = fetchurl {
-    url = https://raw.githubusercontent.com/lvandeve/lodepng/a70c086077c0eaecbae3845e4da4424de5f43361/lodepng.h;
+    url = "https://raw.githubusercontent.com/lvandeve/lodepng/a70c086077c0eaecbae3845e4da4424de5f43361/lodepng.h";
     sha256 = "14drdikd0vws3wwpyqq7zzm5z3kg98svv4q4w0hr45q6zh6hs0bq";
   };
   CImgh = fetchurl {
-    url = https://raw.githubusercontent.com/dtschump/CImg/572c12d82b2f59ece21be8f52645c38f1dd407e6/CImg.h;
+    url = "https://raw.githubusercontent.com/dtschump/CImg/572c12d82b2f59ece21be8f52645c38f1dd407e6/CImg.h";
     sha256 = "0n4qfxj8j6rmj4svf68gg2pzg8d1pb74bnphidnf8i2paj6lwniz";
   };
   plugins = map buildPlugin [
@@ -120,7 +120,7 @@ stdenv.mkDerivation {
       Node-graph based, open-source compositing software. Similar in
       functionalities to Adobe After Effects and Nuke by The Foundry.
     '';
-    homepage = https://natron.fr/;
+    homepage = "https://natron.fr/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ maintainers.puffnfresh ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/obs-studio/linuxbrowser.nix b/pkgs/applications/video/obs-studio/linuxbrowser.nix
index 134e0cb8a9e32..a33383937fb82 100644
--- a/pkgs/applications/video/obs-studio/linuxbrowser.nix
+++ b/pkgs/applications/video/obs-studio/linuxbrowser.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Browser source plugin for obs-studio based on Chromium Embedded Framework";
-    homepage = https://github.com/bazukas/obs-linuxbrowser;
+    homepage = "https://github.com/bazukas/obs-linuxbrowser";
     maintainers = with maintainers; [ puffnfresh ];
     license = licenses.gpl2;
     platforms = with platforms; linux;
diff --git a/pkgs/applications/video/obs-studio/obs-ndi.nix b/pkgs/applications/video/obs-studio/obs-ndi.nix
index 452793f442ee2..79f38fa8fe406 100644
--- a/pkgs/applications/video/obs-studio/obs-ndi.nix
+++ b/pkgs/applications/video/obs-studio/obs-ndi.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Network A/V plugin for OBS Studio";
-    homepage = https://github.com/Palakis/obs-ndi;
+    homepage = "https://github.com/Palakis/obs-ndi";
     maintainers = with maintainers; [ peti ];
     license = licenses.gpl2;
     platforms = with platforms; linux;
diff --git a/pkgs/applications/video/obs-studio/wlrobs.nix b/pkgs/applications/video/obs-studio/wlrobs.nix
index 05b826c9cefc0..77ef09d3c24d2 100644
--- a/pkgs/applications/video/obs-studio/wlrobs.nix
+++ b/pkgs/applications/video/obs-studio/wlrobs.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An obs-studio plugin that allows you to screen capture on wlroots based wayland compositors";
-    homepage = https://hg.sr.ht/~scoopta/wlrobs;
+    homepage = "https://hg.sr.ht/~scoopta/wlrobs";
     maintainers = with maintainers; [ grahamc ];
     license = licenses.gpl3;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/video/ogmtools/default.nix b/pkgs/applications/video/ogmtools/default.nix
index 221f4fc0e5c3c..c9c5190dc5398 100644
--- a/pkgs/applications/video/ogmtools/default.nix
+++ b/pkgs/applications/video/ogmtools/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       (ogmdemux) or creation of (ogmmerge) OGG media streams. Includes dvdxchap
       tool for extracting chapter information from DVD.
     '';
-    homepage = https://www.bunkus.org/videotools/ogmtools/;
+    homepage = "https://www.bunkus.org/videotools/ogmtools/";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/video/omxplayer/default.nix b/pkgs/applications/video/omxplayer/default.nix
index 7a130bbdb4184..28df8ead0c80d 100644
--- a/pkgs/applications/video/omxplayer/default.nix
+++ b/pkgs/applications/video/omxplayer/default.nix
@@ -55,7 +55,7 @@ let
     enableParallelBuilding = true;
 
     meta = {
-      homepage = http://www.ffmpeg.org/;
+      homepage = "http://www.ffmpeg.org/";
       description = "A complete, cross-platform solution to record, convert and stream audio and video";
     };
   };
@@ -63,7 +63,7 @@ in
 stdenv.mkDerivation rec {
   name = "omxplayer-20130328-fbee325dc2";
   src = fetchurl {
-    url = https://github.com/huceke/omxplayer/tarball/fbee325dc2;
+    url = "https://github.com/huceke/omxplayer/tarball/fbee325dc2";
     name = "${name}.tar.gz";
     sha256 = "0fkvv8il7ffqxki2gp8cxa5shh6sz9jsy5vv3f4025g4gss6afkg";
   };
@@ -78,7 +78,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ raspberrypifw ffmpeg pcre boost freetype zlib ];
 
   meta = {
-    homepage = https://github.com/huceke/omxplayer;
+    homepage = "https://github.com/huceke/omxplayer";
     description = "Commandline OMX player for the Raspberry Pi";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.arm;
diff --git a/pkgs/applications/video/openshot-qt/default.nix b/pkgs/applications/video/openshot-qt/default.nix
index e8a348b432866..cd3176249f8a1 100644
--- a/pkgs/applications/video/openshot-qt/default.nix
+++ b/pkgs/applications/video/openshot-qt/default.nix
@@ -36,7 +36,7 @@ mkDerivationWith python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = http://openshot.org/;
+    homepage = "http://openshot.org/";
     description = "Free, open-source video editor";
     longDescription = ''
       OpenShot Video Editor is a free, open-source video editor for Linux.
diff --git a/pkgs/applications/video/openshot-qt/libopenshot-audio.nix b/pkgs/applications/video/openshot-qt/libopenshot-audio.nix
index 253ef15a600ff..d1a368b43ba24 100644
--- a/pkgs/applications/video/openshot-qt/libopenshot-audio.nix
+++ b/pkgs/applications/video/openshot-qt/libopenshot-audio.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   doCheck = false;
 
   meta = {
-    homepage = http://openshot.org/;
+    homepage = "http://openshot.org/";
     description = "High-quality sound editing library";
     longDescription = ''
       OpenShot Audio Library (libopenshot-audio) is a program that allows the
diff --git a/pkgs/applications/video/openshot-qt/libopenshot.nix b/pkgs/applications/video/openshot-qt/libopenshot.nix
index 19852664a9f68..861ac4560291b 100644
--- a/pkgs/applications/video/openshot-qt/libopenshot.nix
+++ b/pkgs/applications/video/openshot-qt/libopenshot.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
   cmakeFlags = [ "-DENABLE_RUBY=OFF" ];
 
   meta = {
-    homepage = http://openshot.org/;
+    homepage = "http://openshot.org/";
     description = "Free, open-source video editor library";
     longDescription = ''
       OpenShot Library (libopenshot) is an open-source project dedicated to
diff --git a/pkgs/applications/video/p2pvc/default.nix b/pkgs/applications/video/p2pvc/default.nix
index d9eef7f4cd856..219954ff9f20d 100644
--- a/pkgs/applications/video/p2pvc/default.nix
+++ b/pkgs/applications/video/p2pvc/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A point to point color terminal video chat";
-    homepage = https://github.com/mofarrell/p2pvc;
+    homepage = "https://github.com/mofarrell/p2pvc";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ trino ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/video/pitivi/default.nix b/pkgs/applications/video/pitivi/default.nix
index bef9537b80675..276c2fa787f22 100644
--- a/pkgs/applications/video/pitivi/default.nix
+++ b/pkgs/applications/video/pitivi/default.nix
@@ -68,7 +68,7 @@ in python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Non-Linear video editor utilizing the power of GStreamer";
-    homepage = http://pitivi.org/;
+    homepage = "http://pitivi.org/";
     longDescription = ''
       Pitivi is a video editor built upon the GStreamer Editing Services.
       It aims to be an intuitive and flexible application
diff --git a/pkgs/applications/video/plex-media-player/default.nix b/pkgs/applications/video/plex-media-player/default.nix
index a4f9d6222aa6d..8b7aa3b551cc0 100644
--- a/pkgs/applications/video/plex-media-player/default.nix
+++ b/pkgs/applications/video/plex-media-player/default.nix
@@ -65,6 +65,6 @@ in mkDerivation rec {
     description = "Streaming media player for Plex";
     license = licenses.gpl2;
     maintainers = with maintainers; [ kylewlacy ];
-    homepage = https://plex.tv;
+    homepage = "https://plex.tv";
   };
 }
diff --git a/pkgs/applications/video/pyca/default.nix b/pkgs/applications/video/pyca/default.nix
index af9ef4c1cd503..0fed17bb99997 100644
--- a/pkgs/applications/video/pyca/default.nix
+++ b/pkgs/applications/video/pyca/default.nix
@@ -22,7 +22,7 @@ buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A fully functional Opencast capture agent written in Python";
-    homepage = https://github.com/opencast/pyCA;
+    homepage = "https://github.com/opencast/pyCA";
     license = licenses.lgpl3;
     maintainers = with maintainers; [ pmiddend ];
   };
diff --git a/pkgs/applications/video/qarte/default.nix b/pkgs/applications/video/qarte/default.nix
index cd6416032da2f..26b3153019fbc 100644
--- a/pkgs/applications/video/qarte/default.nix
+++ b/pkgs/applications/video/qarte/default.nix
@@ -5,7 +5,7 @@ let
 in mkDerivation {
   name = "qarte-4.6.0";
   src = fetchbzr {
-    url = http://bazaar.launchpad.net/~vincent-vandevyvre/qarte/qarte-4;
+    url = "http://bazaar.launchpad.net/~vincent-vandevyvre/qarte/qarte-4";
     rev = "22";
     sha256 = "0v4zpj8w67ydvnmanxbl8pwvn0cfv70c0mlw36a1r4n0rvgxffcn";
   };
@@ -33,7 +33,7 @@ in mkDerivation {
   '';
 
   meta = {
-    homepage = https://launchpad.net/qarte;
+    homepage = "https://launchpad.net/qarte";
     description = "A recorder for Arte TV Guide and Arte Concert";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ vbgl ];
diff --git a/pkgs/applications/video/qstopmotion/default.nix b/pkgs/applications/video/qstopmotion/default.nix
index 327a2034265e1..e2243797a3bc7 100644
--- a/pkgs/applications/video/qstopmotion/default.nix
+++ b/pkgs/applications/video/qstopmotion/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.qstopmotion.org;
+    homepage = "http://www.qstopmotion.org";
     description = "Create stopmotion animation with a (web)camera";
     longDescription = ''
       Qstopmotion is a tool to create stopmotion
diff --git a/pkgs/applications/video/quvi/library.nix b/pkgs/applications/video/quvi/library.nix
index 8f9e3131d8aae..c4926bedd7272 100644
--- a/pkgs/applications/video/quvi/library.nix
+++ b/pkgs/applications/video/quvi/library.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Web video downloader";
-    homepage = http://quvi.sf.net;
+    homepage = "http://quvi.sf.net";
     license = stdenv.lib.licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ ];
diff --git a/pkgs/applications/video/quvi/scripts.nix b/pkgs/applications/video/quvi/scripts.nix
index e54fc0eae4ba0..462c2df9962cc 100644
--- a/pkgs/applications/video/quvi/scripts.nix
+++ b/pkgs/applications/video/quvi/scripts.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Web video downloader";
-    homepage = http://quvi.sf.net;
+    homepage = "http://quvi.sf.net";
     license = stdenv.lib.licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ ];
diff --git a/pkgs/applications/video/quvi/tool.nix b/pkgs/applications/video/quvi/tool.nix
index 972e08bb61be1..b2746ef82333b 100644
--- a/pkgs/applications/video/quvi/tool.nix
+++ b/pkgs/applications/video/quvi/tool.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Web video downloader";
-    homepage = http://quvi.sf.net;
+    homepage = "http://quvi.sf.net";
     license = stdenv.lib.licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ ];
diff --git a/pkgs/applications/video/screenkey/default.nix b/pkgs/applications/video/screenkey/default.nix
index 56b1134b2b8af..7e2bc3a3ec0cf 100644
--- a/pkgs/applications/video/screenkey/default.nix
+++ b/pkgs/applications/video/screenkey/default.nix
@@ -49,7 +49,7 @@ buildPythonApplication rec {
   doCheck = false;
 
   meta = with lib; {
-    homepage = https://www.thregr.org/~wavexx/software/screenkey/;
+    homepage = "https://www.thregr.org/~wavexx/software/screenkey/";
     description = "A screencast tool to display your keys inspired by Screenflick";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/simplescreenrecorder/default.nix b/pkgs/applications/video/simplescreenrecorder/default.nix
index b06f0fcd962ee..f97d1ee00373b 100644
--- a/pkgs/applications/video/simplescreenrecorder/default.nix
+++ b/pkgs/applications/video/simplescreenrecorder/default.nix
@@ -31,7 +31,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A screen recorder for Linux";
-    homepage = https://www.maartenbaert.be/simplescreenrecorder;
+    homepage = "https://www.maartenbaert.be/simplescreenrecorder";
     license = licenses.gpl3;
     platforms = [ "x86_64-linux" ];
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/video/smplayer/default.nix b/pkgs/applications/video/smplayer/default.nix
index 65a7f358d6fab..aba6af7359a32 100644
--- a/pkgs/applications/video/smplayer/default.nix
+++ b/pkgs/applications/video/smplayer/default.nix
@@ -19,7 +19,7 @@ mkDerivation rec {
   meta = {
     description = "A complete front-end for MPlayer";
     longDescription = "Either mplayer or mpv should also be installed for smplayer to play medias";
-    homepage = https://www.smplayer.info;
+    homepage = "https://www.smplayer.info";
     license = lib.licenses.gpl3Plus;
     platforms = lib.platforms.linux;
   };
diff --git a/pkgs/applications/video/smtube/default.nix b/pkgs/applications/video/smtube/default.nix
index df262fa979742..1cd6fb693e81e 100644
--- a/pkgs/applications/video/smtube/default.nix
+++ b/pkgs/applications/video/smtube/default.nix
@@ -20,7 +20,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Play and download Youtube videos";
-    homepage = http://smplayer.sourceforge.net/smtube.php;
+    homepage = "http://smplayer.sourceforge.net/smtube.php";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ vbgl ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/streamlink/default.nix b/pkgs/applications/video/streamlink/default.nix
index cf10bd223a14e..a12d084589014 100644
--- a/pkgs/applications/video/streamlink/default.nix
+++ b/pkgs/applications/video/streamlink/default.nix
@@ -16,7 +16,7 @@ pythonPackages.buildPythonApplication rec {
   propagatedBuildInputs = (with pythonPackages; [ pycryptodome requests iso-639 iso3166 websocket_client isodate ]) ++ [ rtmpdump ffmpeg ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/streamlink/streamlink;
+    homepage = "https://github.com/streamlink/streamlink";
     description = "CLI for extracting streams from various websites to video player of your choosing";
     longDescription = ''
       Streamlink is a CLI utility that pipes flash videos from online
diff --git a/pkgs/applications/video/subdl/default.nix b/pkgs/applications/video/subdl/default.nix
index 36a92f0f1afb6..b2b020a20d230 100644
--- a/pkgs/applications/video/subdl/default.nix
+++ b/pkgs/applications/video/subdl/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   };
 
   meta = {
-    homepage = https://github.com/alexanderwink/subdl;
+    homepage = "https://github.com/alexanderwink/subdl";
     description = "A command-line tool to download subtitles from opensubtitles.org";
     platforms = stdenv.lib.platforms.all;
     license = stdenv.lib.licenses.gpl3;
diff --git a/pkgs/applications/video/subtitleeditor/default.nix b/pkgs/applications/video/subtitleeditor/default.nix
index f628c3b214e49..29e2de6b6c0a9 100644
--- a/pkgs/applications/video/subtitleeditor/default.nix
+++ b/pkgs/applications/video/subtitleeditor/default.nix
@@ -56,7 +56,7 @@ stdenv.mkDerivation {
       and refine existing subtitle. This program also shows sound waves, which
       makes it easier to synchronise subtitles to voices.
       '';
-    homepage = http://kitone.github.io/subtitleeditor/;
+    homepage = "http://kitone.github.io/subtitleeditor/";
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.plcplc ];
diff --git a/pkgs/applications/video/tivodecode/default.nix b/pkgs/applications/video/tivodecode/default.nix
index bc6561a0bbd08..33e04b77c4b47 100644
--- a/pkgs/applications/video/tivodecode/default.nix
+++ b/pkgs/applications/video/tivodecode/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Converts a .TiVo file (produced by TiVoToGo) to a normal MPEG file";
-    homepage = http://tivodecode.sourceforge.net;
+    homepage = "http://tivodecode.sourceforge.net";
     platforms = platforms.unix;
     license = licenses.bsd3;
   };
diff --git a/pkgs/applications/video/vdr/default.nix b/pkgs/applications/video/vdr/default.nix
index bcffb8585b310..d025554835eff 100644
--- a/pkgs/applications/video/vdr/default.nix
+++ b/pkgs/applications/video/vdr/default.nix
@@ -46,7 +46,7 @@
   outputs = [ "out" "dev" "man" ];
 
   meta = with lib; {
-    homepage = http://www.tvdr.de/;
+    homepage = "http://www.tvdr.de/";
     description = "Video Disc Recorder";
     maintainers = [ maintainers.ck3d ];
     platforms = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/video/vdr/plugins.nix b/pkgs/applications/video/vdr/plugins.nix
index 2ee196baccc77..6c1e79c42debd 100644
--- a/pkgs/applications/video/vdr/plugins.nix
+++ b/pkgs/applications/video/vdr/plugins.nix
@@ -38,7 +38,7 @@ in {
     makeFlags = [ "DESTDIR=$(out)" ];
 
     meta = with stdenv.lib; {
-      homepage = http://www.saunalahti.fi/~rahrenbe/vdr/femon/;
+      homepage = "http://www.saunalahti.fi/~rahrenbe/vdr/femon/";
       description = "DVB Frontend Status Monitor plugin for VDR";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
@@ -72,7 +72,7 @@ in {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/pesintta/vdr-plugin-vaapidevice;
+      homepage = "https://github.com/pesintta/vdr-plugin-vaapidevice";
       description = "VDR SoftHDDevice Plug-in (with VA-API VPP additions)";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
@@ -118,7 +118,7 @@ in {
     installFlags = buildFlags;
 
     meta = with stdenv.lib; {
-      homepage = https://projects.vdr-developer.org/projects/plg-markad;
+      homepage = "https://projects.vdr-developer.org/projects/plg-markad";
       description = "Ein Programm zum automatischen Setzen von Schnittmarken bei Werbeeinblendungen während einer Sendung.";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
@@ -165,7 +165,7 @@ in {
     outputs = [ "out" "man" ];
 
     meta = with stdenv.lib; {
-      homepage = http://winni.vdr-developer.org/epgsearch;
+      homepage = "http://winni.vdr-developer.org/epgsearch";
       description = "Searchtimer and replacement of the VDR program menu";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
@@ -192,7 +192,7 @@ in {
     };
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/FernetMenta/vdr-plugin-vnsiserver;
+      homepage = "https://github.com/FernetMenta/vdr-plugin-vnsiserver";
       description = "VDR plugin to handle KODI clients.";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
@@ -227,7 +227,7 @@ in {
     installPhase = ":";
 
     meta = with stdenv.lib; {
-      homepage = https://projects.vdr-developer.org/projects/plg-text2skin;
+      homepage = "https://projects.vdr-developer.org/projects/plg-text2skin";
       description = "VDR Text2Skin Plugin";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
@@ -328,7 +328,7 @@ in {
     installFlags = [ "DESTDIR=$(out)" ];
 
     meta = with stdenv.lib; {
-      homepage = https://github.com/jowi24/vdr-fritz;
+      homepage = "https://github.com/jowi24/vdr-fritz";
       description = "A plugin for VDR to access AVMs Fritz Box routers";
       maintainers = [ maintainers.ck3d ];
       license = licenses.gpl2;
diff --git a/pkgs/applications/video/vlc/default.nix b/pkgs/applications/video/vlc/default.nix
index 2396a224d451f..229eeffe8f793 100644
--- a/pkgs/applications/video/vlc/default.nix
+++ b/pkgs/applications/video/vlc/default.nix
@@ -96,7 +96,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Cross-platform media player and streaming server";
-    homepage = http://www.videolan.org/vlc/;
+    homepage = "http://www.videolan.org/vlc/";
     license = licenses.lgpl21Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/video/w_scan/default.nix b/pkgs/applications/video/w_scan/default.nix
index 3c4f607c6affb..7710c7d67a318 100644
--- a/pkgs/applications/video/w_scan/default.nix
+++ b/pkgs/applications/video/w_scan/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Small CLI utility to scan DVB and ATSC transmissions";
-    homepage = http://wirbel.htpc-forum.de/w_scan/index_en.html;
+    homepage = "http://wirbel.htpc-forum.de/w_scan/index_en.html";
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ] ;
     license = stdenv.lib.licenses.gpl2;
diff --git a/pkgs/applications/video/webtorrent_desktop/default.nix b/pkgs/applications/video/webtorrent_desktop/default.nix
index 8258f8583090d..24c17daa759dc 100644
--- a/pkgs/applications/video/webtorrent_desktop/default.nix
+++ b/pkgs/applications/video/webtorrent_desktop/default.nix
@@ -78,7 +78,7 @@
 
     meta = with stdenv.lib; {
       description = "Streaming torrent app for Mac, Windows, and Linux.";
-      homepage = https://webtorrent.io/desktop;
+      homepage = "https://webtorrent.io/desktop";
       license = licenses.mit;
       maintainers = [ maintainers.flokli ];
       platforms = [
diff --git a/pkgs/applications/video/wxcam/default.nix b/pkgs/applications/video/wxcam/default.nix
index 176d9a87aed0d..32712d5b9b07a 100644
--- a/pkgs/applications/video/wxcam/default.nix
+++ b/pkgs/applications/video/wxcam/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
     It supports both video4linux 1 and 2 drivers,
     so it should work on a very large number of devices.
     '';
-    homepage = http://wxcam.sourceforge.net/;
+    homepage = "http://wxcam.sourceforge.net/";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/video/xawtv/default.nix b/pkgs/applications/video/xawtv/default.nix
index 676c218776c82..38cce053edfd6 100644
--- a/pkgs/applications/video/xawtv/default.nix
+++ b/pkgs/applications/video/xawtv/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "TV application for Linux with apps and tools such as a teletext browser";
     license = stdenv.lib.licenses.gpl2;
-    homepage = https://www.kraxel.org/blog/linux/xawtv/;
+    homepage = "https://www.kraxel.org/blog/linux/xawtv/";
     maintainers = with stdenv.lib.maintainers; [ domenkozar ];
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/video/xine-ui/default.nix b/pkgs/applications/video/xine-ui/default.nix
index e92d738459113..f52db04928a4b 100644
--- a/pkgs/applications/video/xine-ui/default.nix
+++ b/pkgs/applications/video/xine-ui/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 #NIX_LDFLAGS = "-lXext -lgcc_s";
 
   meta = with stdenv.lib; {
-    homepage = http://www.xine-project.org/;
+    homepage = "http://www.xine-project.org/";
     description = "Xlib-based interface to Xine, a video player";
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/video/xscast/default.nix b/pkgs/applications/video/xscast/default.nix
index 3c4c59a0ee8f9..dec8bdd67fce5 100644
--- a/pkgs/applications/video/xscast/default.nix
+++ b/pkgs/applications/video/xscast/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/KeyboardFire/xscast;
+    homepage = "https://github.com/KeyboardFire/xscast";
     license = licenses.mit;
     description = "Screencasts of windows with list of keystrokes overlayed";
     maintainers = with maintainers; [ ma27 ];
diff --git a/pkgs/applications/video/xvidcap/default.nix b/pkgs/applications/video/xvidcap/default.nix
index 6e07fbb105b63..20d4d84741ccd 100644
--- a/pkgs/applications/video/xvidcap/default.nix
+++ b/pkgs/applications/video/xvidcap/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   name = "xvidcap-1.1.7";
 
   src = fetchurl {
-    url = mirror://sourceforge/xvidcap/xvidcap-1.1.7.tar.gz;
+    url = "mirror://sourceforge/xvidcap/xvidcap-1.1.7.tar.gz";
     sha256 = "0p8rhpyhxgy37crf1xk1046z4p663jg7ww776jw92pld3s024ihm";
   };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Screencast video catpuring tool";
-    homepage = http://xvidcap.sourceforge.net/;
+    homepage = "http://xvidcap.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/virtualization/8086tiny/default.nix b/pkgs/applications/virtualization/8086tiny/default.nix
index e16fcb84b0552..464ea053cc4f7 100644
--- a/pkgs/applications/virtualization/8086tiny/default.nix
+++ b/pkgs/applications/virtualization/8086tiny/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
 
     8086tiny is based on an IOCCC 2013 winning entry. In fact that is the "unobfuscated" version :)
     '';
-    homepage = http://www.megalith.co.uk/8086tiny/index.html;
+    homepage = "http://www.megalith.co.uk/8086tiny/index.html";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.AndersonTorres ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/virtualization/OVMF/default.nix b/pkgs/applications/virtualization/OVMF/default.nix
index e475c4ed78aff..310d41df36da3 100644
--- a/pkgs/applications/virtualization/OVMF/default.nix
+++ b/pkgs/applications/virtualization/OVMF/default.nix
@@ -55,7 +55,7 @@ edk2.mkDerivation projectDscPath {
 
   meta = {
     description = "Sample UEFI firmware for QEMU and KVM";
-    homepage = https://github.com/tianocore/tianocore.github.io/wiki/OVMF;
+    homepage = "https://github.com/tianocore/tianocore.github.io/wiki/OVMF";
     license = stdenv.lib.licenses.bsd2;
     platforms = ["x86_64-linux" "i686-linux" "aarch64-linux"];
   };
diff --git a/pkgs/applications/virtualization/aqemu/default.nix b/pkgs/applications/virtualization/aqemu/default.nix
index 02fb256b38cea..f98b8eefd78a9 100644
--- a/pkgs/applications/virtualization/aqemu/default.nix
+++ b/pkgs/applications/virtualization/aqemu/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A virtual machine manager GUI for qemu";
-    homepage = https://github.com/tobimensch/aqemu;
+    homepage = "https://github.com/tobimensch/aqemu";
     license = licenses.gpl2;
     maintainers = with maintainers; [ hrdinka ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/virtualization/charliecloud/default.nix b/pkgs/applications/virtualization/charliecloud/default.nix
index a0694b7efbe8d..a316952a010df 100644
--- a/pkgs/applications/virtualization/charliecloud/default.nix
+++ b/pkgs/applications/virtualization/charliecloud/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
       while maintaining access to the performance and functionality already
       on offer.
     '';
-    homepage = https://hpc.github.io/charliecloud;
+    homepage = "https://hpc.github.io/charliecloud";
     license = stdenv.lib.licenses.asl20;
     maintainers = [ stdenv.lib.maintainers.bzizou ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/virtualization/cntr/default.nix b/pkgs/applications/virtualization/cntr/default.nix
index f046e0e44b2ca..e3ab1c6c2f80f 100644
--- a/pkgs/applications/virtualization/cntr/default.nix
+++ b/pkgs/applications/virtualization/cntr/default.nix
@@ -15,7 +15,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "A container debugging tool based on FUSE";
-    homepage = https://github.com/Mic92/cntr;
+    homepage = "https://github.com/Mic92/cntr";
     license = licenses.mit;
     # aarch64 support will be fixed soon
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/virtualization/containerd/default.nix b/pkgs/applications/virtualization/containerd/default.nix
index 7b48d8c19345b..7ce4390ba3010 100644
--- a/pkgs/applications/virtualization/containerd/default.nix
+++ b/pkgs/applications/virtualization/containerd/default.nix
@@ -48,7 +48,7 @@ buildGoPackage rec {
   '';
 
   meta = {
-    homepage = https://containerd.io/;
+    homepage = "https://containerd.io/";
     description = "A daemon to control runC";
     license = licenses.asl20;
     maintainers = with maintainers; [ offline vdemeester ];
diff --git a/pkgs/applications/virtualization/cri-o/default.nix b/pkgs/applications/virtualization/cri-o/default.nix
index 793d34a0dcca2..21d88d7dffad9 100644
--- a/pkgs/applications/virtualization/cri-o/default.nix
+++ b/pkgs/applications/virtualization/cri-o/default.nix
@@ -53,7 +53,7 @@ in buildGoPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://cri-o.io;
+    homepage = "https://cri-o.io";
     description = ''Open Container Initiative-based implementation of the
                     Kubernetes Container Runtime Interface'';
     license = licenses.asl20;
diff --git a/pkgs/applications/virtualization/docker-compose/default.nix b/pkgs/applications/virtualization/docker-compose/default.nix
index 0bd5d69466b0c..fb641bc1a55c0 100644
--- a/pkgs/applications/virtualization/docker-compose/default.nix
+++ b/pkgs/applications/virtualization/docker-compose/default.nix
@@ -41,7 +41,7 @@ buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://docs.docker.com/compose/;
+    homepage = "https://docs.docker.com/compose/";
     description = "Multi-container orchestration for Docker";
     license = licenses.asl20;
     maintainers = with maintainers; [ Frostman ];
diff --git a/pkgs/applications/virtualization/docker/default.nix b/pkgs/applications/virtualization/docker/default.nix
index 7f7b3a227e842..131d6d7675ed6 100644
--- a/pkgs/applications/virtualization/docker/default.nix
+++ b/pkgs/applications/virtualization/docker/default.nix
@@ -182,7 +182,7 @@ rec {
     '';
 
     meta = {
-      homepage = https://www.docker.com/;
+      homepage = "https://www.docker.com/";
       description = "An open source project to pack, ship and run any application as a lightweight container";
       license = licenses.asl20;
       maintainers = with maintainers; [ nequissimus offline tailhook vdemeester periklis ];
diff --git a/pkgs/applications/virtualization/docker/gc.nix b/pkgs/applications/virtualization/docker/gc.nix
index dcac628e36767..08cfba59918ff 100644
--- a/pkgs/applications/virtualization/docker/gc.nix
+++ b/pkgs/applications/virtualization/docker/gc.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Docker garbage collection of containers and images";
     license = licenses.asl20;
-    homepage = https://github.com/spotify/docker-gc;
+    homepage = "https://github.com/spotify/docker-gc";
     maintainers = with maintainers; [offline];
     platforms = docker.meta.platforms;
   };
diff --git a/pkgs/applications/virtualization/docker/proxy.nix b/pkgs/applications/virtualization/docker/proxy.nix
index 3b2e1f45ae645..dde0b48149742 100644
--- a/pkgs/applications/virtualization/docker/proxy.nix
+++ b/pkgs/applications/virtualization/docker/proxy.nix
@@ -22,7 +22,7 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     description = "Docker proxy binary to forward traffic between host and containers";
     license = licenses.asl20;
-    homepage = https://github.com/docker/libnetwork;
+    homepage = "https://github.com/docker/libnetwork";
     maintainers = with maintainers; [vdemeester];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/virtualization/driver/win-pvdrivers/default.nix b/pkgs/applications/virtualization/driver/win-pvdrivers/default.nix
index 069d5836a42b0..faa1076e2998c 100644
--- a/pkgs/applications/virtualization/driver/win-pvdrivers/default.nix
+++ b/pkgs/applications/virtualization/driver/win-pvdrivers/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation  {
 
   meta = with stdenv.lib; {
     description = "Xen Subproject: Windows PV Driver";
-    homepage = http://xenproject.org/downloads/windows-pv-drivers.html;
+    homepage = "http://xenproject.org/downloads/windows-pv-drivers.html";
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
     license = licenses.bsd3;
diff --git a/pkgs/applications/virtualization/driver/win-qemu/default.nix b/pkgs/applications/virtualization/driver/win-qemu/default.nix
index 1fa3e76d18fde..97a1f0b3039b7 100644
--- a/pkgs/applications/virtualization/driver/win-qemu/default.nix
+++ b/pkgs/applications/virtualization/driver/win-qemu/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation  {
 
   meta = with stdenv.lib; {
     description = "Windows QEMU Drivers";
-    homepage = https://fedoraproject.org/wiki/Windows_Virtio_Drivers;
+    homepage = "https://fedoraproject.org/wiki/Windows_Virtio_Drivers";
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/virtualization/driver/win-signed-gplpv-drivers/default.nix b/pkgs/applications/virtualization/driver/win-signed-gplpv-drivers/default.nix
index 39ca93d4e1a88..c4684a20914fd 100644
--- a/pkgs/applications/virtualization/driver/win-signed-gplpv-drivers/default.nix
+++ b/pkgs/applications/virtualization/driver/win-signed-gplpv-drivers/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation  {
       The drivers are signed by Univention with a Software Publishers
       Certificate obtained from the VeriSign CA.
       '';
-    homepage = http://wiki.univention.de/index.php?title=Installing-signed-GPLPV-drivers;
+    homepage = "http://wiki.univention.de/index.php?title=Installing-signed-GPLPV-drivers";
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
     license = licenses.gpl2;
diff --git a/pkgs/applications/virtualization/driver/win-spice/default.nix b/pkgs/applications/virtualization/driver/win-spice/default.nix
index 2b2d8568a5b7d..f327512b128e1 100644
--- a/pkgs/applications/virtualization/driver/win-spice/default.nix
+++ b/pkgs/applications/virtualization/driver/win-spice/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation  {
 
   meta = with stdenv.lib; {
     description = "Windows SPICE Drivers";
-    homepage = https://www.spice-space.org/;
+    homepage = "https://www.spice-space.org/";
     license = [ licenses.asl20 ]; # See https://github.com/vrozenfe/qxl-dod
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/virtualization/driver/win-virtio/default.nix b/pkgs/applications/virtualization/driver/win-virtio/default.nix
index 351353ceb96e9..f8a52f5b898d5 100644
--- a/pkgs/applications/virtualization/driver/win-virtio/default.nix
+++ b/pkgs/applications/virtualization/driver/win-virtio/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Windows VirtIO Drivers";
-    homepage = https://fedoraproject.org/wiki/Windows_Virtio_Drivers;
+    homepage = "https://fedoraproject.org/wiki/Windows_Virtio_Drivers";
     maintainers = [ maintainers.tstrobel ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/virtualization/firecracker/default.nix b/pkgs/applications/virtualization/firecracker/default.nix
index 220d26c116f0b..cb8cc7ee1de2f 100644
--- a/pkgs/applications/virtualization/firecracker/default.nix
+++ b/pkgs/applications/virtualization/firecracker/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Secure, fast, minimal micro-container virtualization";
-    homepage    = http://firecracker-microvm.io;
+    homepage    = "http://firecracker-microvm.io";
     license     = licenses.asl20;
     platforms   = [ "x86_64-linux" "aarch64-linux" ];
     maintainers = with maintainers; [ thoughtpolice ];
diff --git a/pkgs/applications/virtualization/firectl/default.nix b/pkgs/applications/virtualization/firectl/default.nix
index 1f74318f2ddef..f91cc6d5ed3ec 100644
--- a/pkgs/applications/virtualization/firectl/default.nix
+++ b/pkgs/applications/virtualization/firectl/default.nix
@@ -15,7 +15,7 @@ buildGoModule rec {
 
   meta = with stdenv.lib; {
     description = "A command-line tool to run Firecracker microVMs";
-    homepage = https://github.com/firecracker-microvm/firectl;
+    homepage = "https://github.com/firecracker-microvm/firectl";
     license = licenses.asl20;
     platforms = platforms.linux;
     maintainers = with maintainers; [ xrelkd ];
diff --git a/pkgs/applications/virtualization/gvisor/containerd-shim.nix b/pkgs/applications/virtualization/gvisor/containerd-shim.nix
index d30897df79e9e..702aeaded3e98 100644
--- a/pkgs/applications/virtualization/gvisor/containerd-shim.nix
+++ b/pkgs/applications/virtualization/gvisor/containerd-shim.nix
@@ -28,7 +28,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description = "containerd shim for gVisor";
-    homepage    = https://github.com/google/gvisor-containerd-shim;
+    homepage    = "https://github.com/google/gvisor-containerd-shim";
     license     = licenses.asl20;
     maintainers = with maintainers; [ andrew-d ];
     platforms   = [ "x86_64-linux" ];
diff --git a/pkgs/applications/virtualization/gvisor/default.nix b/pkgs/applications/virtualization/gvisor/default.nix
index 3d0ae35f56080..e157ca825af0f 100644
--- a/pkgs/applications/virtualization/gvisor/default.nix
+++ b/pkgs/applications/virtualization/gvisor/default.nix
@@ -93,7 +93,7 @@ in buildBazelPackage rec {
 
   meta = with stdenv.lib; {
     description = "Container Runtime Sandbox";
-    homepage = https://github.com/google/gvisor;
+    homepage = "https://github.com/google/gvisor";
     license = licenses.asl20;
     maintainers = with maintainers; [ andrew-d ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/virtualization/lkl/default.nix b/pkgs/applications/virtualization/lkl/default.nix
index d56318555e5eb..7a6ccc67bb50d 100644
--- a/pkgs/applications/virtualization/lkl/default.nix
+++ b/pkgs/applications/virtualization/lkl/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
       extensively as possible with minimal effort and reduced maintenance
       overhead
     '';
-    homepage    = https://github.com/lkl/linux/;
+    homepage    = "https://github.com/lkl/linux/";
     platforms   = [ "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ]; # Darwin probably works too but I haven't tested it
     license     = licenses.gpl2;
     maintainers = with maintainers; [ copumpkin ];
diff --git a/pkgs/applications/virtualization/looking-glass-client/default.nix b/pkgs/applications/virtualization/looking-glass-client/default.nix
index 0f53a5c4f14d6..a0ec55dd895b7 100644
--- a/pkgs/applications/virtualization/looking-glass-client/default.nix
+++ b/pkgs/applications/virtualization/looking-glass-client/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
       step required to move away from dual booting with other operating systems
       for legacy programs that require high performance graphics.
     '';
-    homepage = https://looking-glass.hostfission.com/;
+    homepage = "https://looking-glass.hostfission.com/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.alexbakker ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/virtualization/nvidia-docker/default.nix b/pkgs/applications/virtualization/nvidia-docker/default.nix
index e11ca04f6b36d..b56b88cf87ef9 100644
--- a/pkgs/applications/virtualization/nvidia-docker/default.nix
+++ b/pkgs/applications/virtualization/nvidia-docker/default.nix
@@ -76,7 +76,7 @@ in stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = https://github.com/NVIDIA/nvidia-docker;
+    homepage = "https://github.com/NVIDIA/nvidia-docker";
     description = "NVIDIA container runtime for Docker";
     license = licenses.bsd3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/virtualization/nvidia-docker/libnvc.nix b/pkgs/applications/virtualization/nvidia-docker/libnvc.nix
index 71c02ab4de50f..f2c9eda75fc5b 100644
--- a/pkgs/applications/virtualization/nvidia-docker/libnvc.nix
+++ b/pkgs/applications/virtualization/nvidia-docker/libnvc.nix
@@ -45,7 +45,7 @@ in stdenv.mkDerivation rec {
   buildInputs = [ libelf libcap libseccomp ];
 
   meta = {
-    homepage = https://github.com/NVIDIA/libnvidia-container;
+    homepage = "https://github.com/NVIDIA/libnvidia-container";
     description = "NVIDIA container runtime library";
     license = licenses.bsd3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/virtualization/open-vm-tools/default.nix b/pkgs/applications/virtualization/open-vm-tools/default.nix
index 87ec2e52f13a1..84f74ef6dd03c 100644
--- a/pkgs/applications/virtualization/open-vm-tools/default.nix
+++ b/pkgs/applications/virtualization/open-vm-tools/default.nix
@@ -63,7 +63,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/vmware/open-vm-tools;
+    homepage = "https://github.com/vmware/open-vm-tools";
     description = "Set of tools for VMWare guests to improve host-guest interaction";
     longDescription = ''
       A set of services and modules that enable several features in VMware products for
diff --git a/pkgs/applications/virtualization/qboot/default.nix b/pkgs/applications/virtualization/qboot/default.nix
index 0678591fc2a35..d770308239f82 100644
--- a/pkgs/applications/virtualization/qboot/default.nix
+++ b/pkgs/applications/virtualization/qboot/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A simple x86 firmware for booting Linux";
-    homepage = https://github.com/bonzini/qboot;
+    homepage = "https://github.com/bonzini/qboot";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ tstrobel ];
     platforms = ["x86_64-linux" "i686-linux"];
diff --git a/pkgs/applications/virtualization/qemu/default.nix b/pkgs/applications/virtualization/qemu/default.nix
index 203ee1c7cc0ed..d6611e20a9c13 100644
--- a/pkgs/applications/virtualization/qemu/default.nix
+++ b/pkgs/applications/virtualization/qemu/default.nix
@@ -118,16 +118,16 @@ stdenv.mkDerivation rec {
   ] ++ optional nixosTestRunner ./force-uid0-on-9p.patch
     ++ optionals stdenv.hostPlatform.isMusl [
     (fetchpatch {
-      url = https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/xattr_size_max.patch;
+      url = "https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/xattr_size_max.patch";
       sha256 = "1xfdjs1jlvs99hpf670yianb8c3qz2ars8syzyz8f2c2cp5y4bxb";
     })
     (fetchpatch {
-      url = https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/musl-F_SHLCK-and-F_EXLCK.patch;
+      url = "https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/musl-F_SHLCK-and-F_EXLCK.patch";
       sha256 = "1gm67v41gw6apzgz7jr3zv9z80wvkv0jaxd2w4d16hmipa8bhs0k";
     })
     ./sigrtminmax.patch
     (fetchpatch {
-      url = https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/fix-sigevent-and-sigval_t.patch;
+      url = "https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/fix-sigevent-and-sigval_t.patch";
       sha256 = "0wk0rrcqywhrw9hygy6ap0lfg314m9z1wr2hn8338r5gfcw75mav";
     })
   ];
@@ -187,7 +187,7 @@ stdenv.mkDerivation rec {
   };
 
   meta = with stdenv.lib; {
-    homepage = http://www.qemu.org/;
+    homepage = "http://www.qemu.org/";
     description = "A generic and open source machine emulator and virtualizer";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ eelco ];
diff --git a/pkgs/applications/virtualization/railcar/default.nix b/pkgs/applications/virtualization/railcar/default.nix
index 7b56da0f7bc30..fda95b41ab5d4 100644
--- a/pkgs/applications/virtualization/railcar/default.nix
+++ b/pkgs/applications/virtualization/railcar/default.nix
@@ -19,7 +19,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with lib; {
     description = "Rust implementation of the Open Containers Initiative oci-runtime";
-    homepage = https://github.com/oracle/railcar;
+    homepage = "https://github.com/oracle/railcar";
     license = with licenses; [ asl20 /* or */ upl ];
     maintainers = [ maintainers.spacekookie ];
     platforms = platforms.all;
diff --git a/pkgs/applications/virtualization/remotebox/default.nix b/pkgs/applications/virtualization/remotebox/default.nix
index 58710365b6efb..dcc5efb6504a7 100644
--- a/pkgs/applications/virtualization/remotebox/default.nix
+++ b/pkgs/applications/virtualization/remotebox/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "VirtualBox client with remote management";
-    homepage = http://remotebox.knobgoblin.org.uk/;
+    homepage = "http://remotebox.knobgoblin.org.uk/";
     license = licenses.gpl2Plus;
     longDescription = ''
       VirtualBox is traditionally considered to be a virtualization solution
diff --git a/pkgs/applications/virtualization/rkt/default.nix b/pkgs/applications/virtualization/rkt/default.nix
index bacd175197d52..f3b68e5c2276c 100644
--- a/pkgs/applications/virtualization/rkt/default.nix
+++ b/pkgs/applications/virtualization/rkt/default.nix
@@ -65,7 +65,7 @@ in stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A fast, composable, and secure App Container runtime for Linux";
-    homepage = https://github.com/coreos/rkt;
+    homepage = "https://github.com/coreos/rkt";
     license = licenses.asl20;
     maintainers = with maintainers; [ ragge steveej ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/virtualization/runc/default.nix b/pkgs/applications/virtualization/runc/default.nix
index 363a41c1edfa8..7c5f2922d5d8f 100644
--- a/pkgs/applications/virtualization/runc/default.nix
+++ b/pkgs/applications/virtualization/runc/default.nix
@@ -50,7 +50,7 @@ buildGoPackage rec {
   '';
 
   meta = {
-    homepage = https://runc.io/;
+    homepage = "https://runc.io/";
     description = "A CLI tool for spawning and running containers according to the OCI specification";
     license = licenses.asl20;
     maintainers = with maintainers; [ offline ] ++ teams.podman.members;
diff --git a/pkgs/applications/virtualization/singularity/default.nix b/pkgs/applications/virtualization/singularity/default.nix
index 930afa3172299..4477e7c7b1d50 100644
--- a/pkgs/applications/virtualization/singularity/default.nix
+++ b/pkgs/applications/virtualization/singularity/default.nix
@@ -67,7 +67,7 @@ buildGoPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.sylabs.io/;
+    homepage = "http://www.sylabs.io/";
     description = "Application containers for linux";
     license = licenses.bsd3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/virtualization/tini/default.nix b/pkgs/applications/virtualization/tini/default.nix
index fcc599b451f0e..e3e6bae6cfe83 100644
--- a/pkgs/applications/virtualization/tini/default.nix
+++ b/pkgs/applications/virtualization/tini/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A tiny but valid init for containers";
-    homepage = https://github.com/krallin/tini;
+    homepage = "https://github.com/krallin/tini";
     license = licenses.mit;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/virtualization/tinyemu/default.nix b/pkgs/applications/virtualization/tinyemu/default.nix
index 224f77ed32d40..2c9098993d8f9 100644
--- a/pkgs/applications/virtualization/tinyemu/default.nix
+++ b/pkgs/applications/virtualization/tinyemu/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
     mkdir -p "$out/bin"
   '';
   meta = {
-    homepage = https://bellard.org/tinyemu/;
+    homepage = "https://bellard.org/tinyemu/";
     description = "A system emulator for the RISC-V and x86 architectures";
     longDescription = "TinyEMU is a system emulator for the RISC-V and x86 architectures. Its purpose is to be small and simple while being complete.";
     license = with stdenv.lib.licenses; [ mit bsd2 ];
diff --git a/pkgs/applications/virtualization/virt-manager/default.nix b/pkgs/applications/virtualization/virt-manager/default.nix
index 99d20477a125e..952a30b139cf8 100644
--- a/pkgs/applications/virtualization/virt-manager/default.nix
+++ b/pkgs/applications/virtualization/virt-manager/default.nix
@@ -56,7 +56,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = http://virt-manager.org;
+    homepage = "http://virt-manager.org";
     description = "Desktop user interface for managing virtual machines";
     longDescription = ''
       The virt-manager application is a desktop user interface for managing
diff --git a/pkgs/applications/virtualization/virt-manager/qt.nix b/pkgs/applications/virtualization/virt-manager/qt.nix
index 5b2b33d6adf39..85bc7c428ff22 100644
--- a/pkgs/applications/virtualization/virt-manager/qt.nix
+++ b/pkgs/applications/virtualization/virt-manager/qt.nix
@@ -29,7 +29,7 @@ mkDerivation rec {
   nativeBuildInputs = [ cmake pkgconfig qttools ];
 
   meta = with lib; {
-    homepage    = https://f1ash.github.io/qt-virt-manager;
+    homepage    = "https://f1ash.github.io/qt-virt-manager";
     description = "Desktop user interface for managing virtual machines (QT)";
     longDescription = ''
       The virt-manager application is a desktop user interface for managing
diff --git a/pkgs/applications/virtualization/virt-top/default.nix b/pkgs/applications/virtualization/virt-top/default.nix
index efe985920a88e..7ad60405f1b85 100644
--- a/pkgs/applications/virtualization/virt-top/default.nix
+++ b/pkgs/applications/virtualization/virt-top/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.0.9";
 
   src = fetchgit {
-    url = git://git.annexia.org/virt-top.git;
+    url = "git://git.annexia.org/virt-top.git";
     rev = "v${version}";
     sha256 = "0m7pm8lzlpngsj0vjv0hg8l9ck3gvwpva7r472f8f03xpjffwiga";
   };
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A top-like utility for showing stats of virtualized domains";
-    homepage = https://people.redhat.com/~rjones/virt-top/;
+    homepage = "https://people.redhat.com/~rjones/virt-top/";
     license = licenses.gpl2;
     maintainers = [ maintainers.volth ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/virtualization/virtinst/default.nix b/pkgs/applications/virtualization/virtinst/default.nix
index 6931e492e99c7..4d8987d6ed78b 100644
--- a/pkgs/applications/virtualization/virtinst/default.nix
+++ b/pkgs/applications/virtualization/virtinst/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = http://virt-manager.org;
+    homepage = "http://virt-manager.org";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [qknight];
     description = "Command line tool which provides an easy way to provision operating systems into virtual machines";
diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index 5d3044bdbc714..9d784d88a4f58 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -221,7 +221,7 @@ in stdenv.mkDerivation {
   meta = {
     description = "PC emulator";
     license = licenses.gpl2;
-    homepage = https://www.virtualbox.org/;
+    homepage = "https://www.virtualbox.org/";
     maintainers = with maintainers; [ sander ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/virtualization/virtualbox/extpack.nix b/pkgs/applications/virtualization/virtualbox/extpack.nix
index ba8407e4a7368..d50d3b59e24b3 100644
--- a/pkgs/applications/virtualization/virtualbox/extpack.nix
+++ b/pkgs/applications/virtualization/virtualbox/extpack.nix
@@ -18,7 +18,7 @@ fetchurl rec {
   meta = {
     description = "Oracle Extension pack for VirtualBox";
     license = licenses.virtualbox-puel;
-    homepage = https://www.virtualbox.org/;
+    homepage = "https://www.virtualbox.org/";
     maintainers = with maintainers; [ sander cdepillabout ];
     platforms = [ "x86_64-linux" ];
   };
diff --git a/pkgs/applications/virtualization/xen/4.10.nix b/pkgs/applications/virtualization/xen/4.10.nix
index f15a7ef0f9d41..7e3c73fb11d54 100644
--- a/pkgs/applications/virtualization/xen/4.10.nix
+++ b/pkgs/applications/virtualization/xen/4.10.nix
@@ -27,7 +27,7 @@ let
 
   qemuMemfdBuildFix = fetchpatch {
     name = "xen-4.8-memfd-build-fix.patch";
-    url = https://github.com/qemu/qemu/commit/75e5b70e6b5dcc4f2219992d7cffa462aa406af0.patch;
+    url = "https://github.com/qemu/qemu/commit/75e5b70e6b5dcc4f2219992d7cffa462aa406af0.patch";
     sha256 = "0gaz93kb33qc0jx6iphvny0yrd17i8zhcl3a9ky5ylc2idz0wiwa";
   };
 
@@ -49,7 +49,7 @@ callPackage (import ./generic.nix (rec {
   xenfiles = optionalAttrs withInternalQemu {
     qemu-xen = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/qemu-xen.git;
+        url = "https://xenbits.xen.org/git-http/qemu-xen.git";
         # rev = "refs/tags/qemu-xen-${version}";
         # use revision hash - reproducible but must be updated with each new version
         rev = "qemu-xen-${version}";
@@ -66,7 +66,7 @@ callPackage (import ./generic.nix (rec {
   } // optionalAttrs withInternalTraditionalQemu {
     qemu-xen-traditional = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/qemu-xen-traditional.git;
+        url = "https://xenbits.xen.org/git-http/qemu-xen-traditional.git";
         # rev = "refs/tags/xen-${version}";
         # use revision hash - reproducible but must be updated with each new version
         rev = "c8ea0457495342c417c3dc033bba25148b279f60";
@@ -84,7 +84,7 @@ callPackage (import ./generic.nix (rec {
   } // optionalAttrs withInternalSeabios {
     "firmware/seabios-dir-remote" = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/seabios.git;
+        url = "https://xenbits.xen.org/git-http/seabios.git";
         rev = "f0cdc36d2f2424f6b40438f7ee7cc502c0eff4df";
         sha256 = "1wq5pjkjrfzqnq3wyr15mcn1l4c563m65gdyf8jm97kgb13pwwfm";
       };
@@ -94,7 +94,7 @@ callPackage (import ./generic.nix (rec {
   } // optionalAttrs withInternalOVMF {
     "firmware/ovmf-dir-remote" = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/ovmf.git;
+        url = "https://xenbits.xen.org/git-http/ovmf.git";
         rev = "173bf5c847e3ca8b42c11796ce048d8e2e916ff8";
         sha256 = "07zmdj90zjrzip74fvd4ss8n8njk6cim85s58mc6snxmqqv7gmcr";
       };
@@ -104,7 +104,7 @@ callPackage (import ./generic.nix (rec {
     # TODO: patch Xen to make this optional?
     "firmware/etherboot/ipxe.git" = {
       src = fetchgit {
-        url = https://git.ipxe.org/ipxe.git;
+        url = "https://git.ipxe.org/ipxe.git";
         rev = "356f6c1b64d7a97746d1816cef8ca22bdd8d0b5d";
         sha256 = "15n400vm3id5r8y3k6lrp9ab2911a9vh9856f5gvphkazfnmns09";
       };
@@ -114,7 +114,7 @@ callPackage (import ./generic.nix (rec {
     xen-libhvm-dir-remote = {
       src = fetchgit {
         name = "xen-libhvm";
-        url = https://github.com/michalpalka/xen-libhvm;
+        url = "https://github.com/michalpalka/xen-libhvm";
         rev = "83065d36b36d6d527c2a4e0f5aaf0a09ee83122c";
         sha256 = "1jzv479wvgjkazprqdzcdjy199azmx2xl3pnxli39kc5mvjz3lzd";
       };
diff --git a/pkgs/applications/virtualization/xen/4.8.nix b/pkgs/applications/virtualization/xen/4.8.nix
index 8cc9c23d2bfd3..6fa30462df089 100644
--- a/pkgs/applications/virtualization/xen/4.8.nix
+++ b/pkgs/applications/virtualization/xen/4.8.nix
@@ -39,7 +39,7 @@ let
 
   qemuMemfdBuildFix = fetchpatch {
     name = "xen-4.8-memfd-build-fix.patch";
-    url = https://github.com/qemu/qemu/commit/75e5b70e6b5dcc4f2219992d7cffa462aa406af0.patch;
+    url = "https://github.com/qemu/qemu/commit/75e5b70e6b5dcc4f2219992d7cffa462aa406af0.patch";
     sha256 = "0gaz93kb33qc0jx6iphvny0yrd17i8zhcl3a9ky5ylc2idz0wiwa";
   };
 
@@ -66,7 +66,7 @@ callPackage (import ./generic.nix (rec {
   xenfiles = optionalAttrs withInternalQemu {
     qemu-xen = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/qemu-xen.git;
+        url = "https://xenbits.xen.org/git-http/qemu-xen.git";
         rev = "refs/tags/qemu-xen-${version}";
         sha256 = "0lb7zd5nvr6znx47z93nbq4gj8xfb3622s8r2cvmpqmwnmlc3nd4";
       };
@@ -80,7 +80,7 @@ callPackage (import ./generic.nix (rec {
   } // optionalAttrs withInternalTraditionalQemu {
     qemu-xen-traditional = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/qemu-xen-traditional.git;
+        url = "https://xenbits.xen.org/git-http/qemu-xen-traditional.git";
         rev = "refs/tags/xen-${version}";
         sha256 = "0mryap5y53r09m7qc0b821f717ghwm654r8c3ik1w7adzxr0l5qk";
       };
@@ -96,7 +96,7 @@ callPackage (import ./generic.nix (rec {
   } // optionalAttrs withInternalSeabios {
     "firmware/seabios-dir-remote" = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/seabios.git;
+        url = "https://xenbits.xen.org/git-http/seabios.git";
         rev = "f0cdc36d2f2424f6b40438f7ee7cc502c0eff4df";
         sha256 = "1wq5pjkjrfzqnq3wyr15mcn1l4c563m65gdyf8jm97kgb13pwwfm";
       };
@@ -106,7 +106,7 @@ callPackage (import ./generic.nix (rec {
   } // optionalAttrs withInternalOVMF {
     "firmware/ovmf-dir-remote" = {
       src = fetchgit {
-        url = https://xenbits.xen.org/git-http/ovmf.git;
+        url = "https://xenbits.xen.org/git-http/ovmf.git";
         rev = "173bf5c847e3ca8b42c11796ce048d8e2e916ff8";
         sha256 = "07zmdj90zjrzip74fvd4ss8n8njk6cim85s58mc6snxmqqv7gmcr";
       };
@@ -116,7 +116,7 @@ callPackage (import ./generic.nix (rec {
     # TODO: patch Xen to make this optional?
     "firmware/etherboot/ipxe.git" = {
       src = fetchgit {
-        url = https://git.ipxe.org/ipxe.git;
+        url = "https://git.ipxe.org/ipxe.git";
         rev = "356f6c1b64d7a97746d1816cef8ca22bdd8d0b5d";
         sha256 = "15n400vm3id5r8y3k6lrp9ab2911a9vh9856f5gvphkazfnmns09";
       };
@@ -126,7 +126,7 @@ callPackage (import ./generic.nix (rec {
     xen-libhvm-dir-remote = {
       src = fetchgit {
         name = "xen-libhvm";
-        url = https://github.com/michalpalka/xen-libhvm;
+        url = "https://github.com/michalpalka/xen-libhvm";
         rev = "83065d36b36d6d527c2a4e0f5aaf0a09ee83122c";
         sha256 = "1jzv479wvgjkazprqdzcdjy199azmx2xl3pnxli39kc5mvjz3lzd";
       };
diff --git a/pkgs/applications/virtualization/xen/generic.nix b/pkgs/applications/virtualization/xen/generic.nix
index 5a8814fb9e286..854debc458a36 100644
--- a/pkgs/applications/virtualization/xen/generic.nix
+++ b/pkgs/applications/virtualization/xen/generic.nix
@@ -226,7 +226,7 @@ stdenv.mkDerivation (rec {
 
   # TODO(@oxij): Stop referencing args here
   meta = {
-    homepage = http://www.xen.org/;
+    homepage = "http://www.xen.org/";
     description = "Xen hypervisor and related components"
                 + optionalString (args ? meta && args.meta ? description)
                                  " (${args.meta.description})";
diff --git a/pkgs/applications/virtualization/xhyve/default.nix b/pkgs/applications/virtualization/xhyve/default.nix
index e39877df82914..921a54b11a2ef 100644
--- a/pkgs/applications/virtualization/xhyve/default.nix
+++ b/pkgs/applications/virtualization/xhyve/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Lightweight Virtualization on macOS Based on bhyve";
-    homepage = https://github.com/mist64/xhyve;
+    homepage = "https://github.com/mist64/xhyve";
     maintainers = [ lib.maintainers.lnl7 ];
     platforms = lib.platforms.darwin;
   };
diff --git a/pkgs/applications/window-managers/2bwm/default.nix b/pkgs/applications/window-managers/2bwm/default.nix
index cd1a3a4baf7a4..0a2dd63130eb7 100644
--- a/pkgs/applications/window-managers/2bwm/default.nix
+++ b/pkgs/applications/window-managers/2bwm/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   installPhase = "make install DESTDIR=$out PREFIX=\"\"";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/venam/2bwm;
+    homepage = "https://github.com/venam/2bwm";
     description = "A fast floating WM written over the XCB library and derived from mcwm";
     license = licenses.mit;
     maintainers =  [ maintainers.sternenseemann ];
diff --git a/pkgs/applications/window-managers/afterstep/default.nix b/pkgs/applications/window-managers/afterstep/default.nix
index 7e68de8393fd2..001e624e1bed8 100644
--- a/pkgs/applications/window-managers/afterstep/default.nix
+++ b/pkgs/applications/window-managers/afterstep/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
       for flexibility of desktop configuration, improving aestetics,
       and efficient use of system resources.
     '';
-    homepage = http://www.afterstep.org/;
+    homepage = "http://www.afterstep.org/";
     license = licenses.gpl2;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/awesome/default.nix b/pkgs/applications/window-managers/awesome/default.nix
index 54244d4dc8d8a..609723b42d417 100644
--- a/pkgs/applications/window-managers/awesome/default.nix
+++ b/pkgs/applications/window-managers/awesome/default.nix
@@ -84,7 +84,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Highly configurable, dynamic window manager for X";
-    homepage    = https://awesomewm.org/;
+    homepage    = "https://awesomewm.org/";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ lovek323 rasendubi ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/window-managers/bspwm/default.nix b/pkgs/applications/window-managers/bspwm/default.nix
index e863a382470f0..52f5228104376 100644
--- a/pkgs/applications/window-managers/bspwm/default.nix
+++ b/pkgs/applications/window-managers/bspwm/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A tiling window manager based on binary space partitioning";
-    homepage = https://github.com/baskerville/bspwm;
+    homepage = "https://github.com/baskerville/bspwm";
     maintainers = with maintainers; [ meisternu epitrochoid rvolosatovs ];
     license = licenses.bsd2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/bspwm/unstable.nix b/pkgs/applications/window-managers/bspwm/unstable.nix
index eeadfa248d75c..e52e33ec544ad 100644
--- a/pkgs/applications/window-managers/bspwm/unstable.nix
+++ b/pkgs/applications/window-managers/bspwm/unstable.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A tiling window manager based on binary space partitioning (git version)";
-    homepage = https://github.com/baskerville/bspwm;
+    homepage = "https://github.com/baskerville/bspwm";
     maintainers = [ stdenv.lib.maintainers.meisternu stdenv.lib.maintainers.epitrochoid ];
     license = stdenv.lib.licenses.bsd2;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/window-managers/btops/default.nix b/pkgs/applications/window-managers/btops/default.nix
index cf90b1fad63b4..132e2ba6ddd31 100644
--- a/pkgs/applications/window-managers/btops/default.nix
+++ b/pkgs/applications/window-managers/btops/default.nix
@@ -17,7 +17,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "bspwm desktop management that supports dymanic appending, removing, and renaming";
-    homepage = https://github.com/cmschuetz/btops;
+    homepage = "https://github.com/cmschuetz/btops";
     maintainers = with maintainers; [ mnacamura ];
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/cage/default.nix b/pkgs/applications/window-managers/cage/default.nix
index 205569ad550f7..0d9e3335f2c9a 100644
--- a/pkgs/applications/window-managers/cage/default.nix
+++ b/pkgs/applications/window-managers/cage/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A Wayland kiosk";
-    homepage    = https://www.hjdskes.nl/projects/cage/;
+    homepage    = "https://www.hjdskes.nl/projects/cage/";
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ primeos ];
diff --git a/pkgs/applications/window-managers/clfswm/default.nix b/pkgs/applications/window-managers/clfswm/default.nix
index e2c39887a3215..e3864319f7bbc 100644
--- a/pkgs/applications/window-managers/clfswm/default.nix
+++ b/pkgs/applications/window-managers/clfswm/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A(nother) Common Lisp FullScreen Window Manager";
-    homepage    = https://common-lisp.net/project/clfswm/;
+    homepage    = "https://common-lisp.net/project/clfswm/";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ robgssp ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/window-managers/dwm/default.nix b/pkgs/applications/window-managers/dwm/default.nix
index af2c9af900dcf..8f9c28c785113 100644
--- a/pkgs/applications/window-managers/dwm/default.nix
+++ b/pkgs/applications/window-managers/dwm/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   buildPhase = " make ";
 
   meta = {
-    homepage = https://suckless.org/;
+    homepage = "https://suckless.org/";
     description = "Dynamic window manager for X";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/window-managers/dwm/dwm-status.nix b/pkgs/applications/window-managers/dwm/dwm-status.nix
index 69337976f88f4..01887b3bcf16b 100644
--- a/pkgs/applications/window-managers/dwm/dwm-status.nix
+++ b/pkgs/applications/window-managers/dwm/dwm-status.nix
@@ -29,7 +29,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Highly performant and configurable DWM status service";
-    homepage = https://github.com/Gerschtli/dwm-status;
+    homepage = "https://github.com/Gerschtli/dwm-status";
     license = with licenses; [ mit ];
     maintainers = with maintainers; [ gerschtli ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/dwm/git.nix b/pkgs/applications/window-managers/dwm/git.nix
index aaa32dd6b11be..3751a8de69f72 100644
--- a/pkgs/applications/window-managers/dwm/git.nix
+++ b/pkgs/applications/window-managers/dwm/git.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
   buildPhase = "make";
 
   meta = with stdenv.lib; {
-    homepage = https://suckless.org/;
+    homepage = "https://suckless.org/";
     description = "Dynamic window manager for X, development version";
     license = licenses.mit;
     maintainers = with maintainers; [xeji];
diff --git a/pkgs/applications/window-managers/dzen2/default.nix b/pkgs/applications/window-managers/dzen2/default.nix
index 96dcfb9380041..367c78ec5cac6 100644
--- a/pkgs/applications/window-managers/dzen2/default.nix
+++ b/pkgs/applications/window-managers/dzen2/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://github.com/robm/dzen;
+    homepage = "https://github.com/robm/dzen";
     license = stdenv.lib.licenses.mit;
     description = "X notification utility";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/window-managers/evilwm/default.nix b/pkgs/applications/window-managers/evilwm/default.nix
index 1907fbb68f985..64dc784e812f9 100644
--- a/pkgs/applications/window-managers/evilwm/default.nix
+++ b/pkgs/applications/window-managers/evilwm/default.nix
@@ -19,13 +19,13 @@ stdenv.mkDerivation rec {
   inherit patches;
 
   meta = with stdenv.lib; {
-    homepage = http://www.6809.org.uk/evilwm/;
+    homepage = "http://www.6809.org.uk/evilwm/";
     description = "Minimalist window manager for the X Window System";
 
     license = {
       shortName = "evilwm";
       fullName = "Custom, inherited from aewm and 9wm";
-      url = http://www.6809.org.uk/evilwm/;
+      url = "http://www.6809.org.uk/evilwm/";
       free = true;
     };  # like BSD/MIT, but Share-Alike'y; See README.
 
diff --git a/pkgs/applications/window-managers/fluxbox/default.nix b/pkgs/applications/window-managers/fluxbox/default.nix
index 404044fa3fa13..b1a11d7153c23 100644
--- a/pkgs/applications/window-managers/fluxbox/default.nix
+++ b/pkgs/applications/window-managers/fluxbox/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
       fast, desktop experience. It is written in C++ and licensed
       under MIT license.
     '';
-    homepage = http://fluxbox.org/;
+    homepage = "http://fluxbox.org/";
     license = licenses.mit;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/fvwm/default.nix b/pkgs/applications/window-managers/fvwm/default.nix
index cc503b2db4f40..6b3f402975508 100644
--- a/pkgs/applications/window-managers/fvwm/default.nix
+++ b/pkgs/applications/window-managers/fvwm/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   ] ++ stdenv.lib.optional gestures libstroke;
 
   meta = {
-    homepage = http://fvwm.org;
+    homepage = "http://fvwm.org";
     description = "A multiple large virtual desktop window manager";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/window-managers/herbstluftwm/default.nix b/pkgs/applications/window-managers/herbstluftwm/default.nix
index ca64786475f74..8c4f6e452f46e 100644
--- a/pkgs/applications/window-managers/herbstluftwm/default.nix
+++ b/pkgs/applications/window-managers/herbstluftwm/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A manual tiling window manager for X";
-    homepage = http://herbstluftwm.org/;
+    homepage = "http://herbstluftwm.org/";
     license = stdenv.lib.licenses.bsd2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ the-kenny ];
diff --git a/pkgs/applications/window-managers/i3/blocks-gaps.nix b/pkgs/applications/window-managers/i3/blocks-gaps.nix
index acfd06235ac75..4a91865fecac9 100644
--- a/pkgs/applications/window-managers/i3/blocks-gaps.nix
+++ b/pkgs/applications/window-managers/i3/blocks-gaps.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A flexible scheduler for your i3bar blocks -- this is a fork to use with i3-gaps";
-    homepage = https://github.com/Airblader/i3blocks-gaps;
+    homepage = "https://github.com/Airblader/i3blocks-gaps";
     license = licenses.gpl3;
     maintainers = with maintainers; [ carlsverre ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/i3/blocks.nix b/pkgs/applications/window-managers/i3/blocks.nix
index 8c3101f8eb9e9..bfd76b444375b 100644
--- a/pkgs/applications/window-managers/i3/blocks.nix
+++ b/pkgs/applications/window-managers/i3/blocks.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
     # XDG_CONFIG_DIRS can contain multiple elements separated by colons, which should be searched in order.
     (fetchpatch {
       # https://github.com/vivien/i3blocks/pull/405
-      url = https://github.com/edef1c/i3blocks/commit/d57b32f9a364aeaf36869efdd54240433c737e57.patch;
+      url = "https://github.com/edef1c/i3blocks/commit/d57b32f9a364aeaf36869efdd54240433c737e57.patch";
       sha256 = "102xb0ax0hmg82dz2gzfag470dkckzf2yizai0izacvrz0d3ngj1";
     })
   ];
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A flexible scheduler for your i3bar blocks";
-    homepage = https://github.com/vivien/i3blocks;
+    homepage = "https://github.com/vivien/i3blocks";
     license = licenses.gpl3;
     platforms = with platforms; freebsd ++ linux;
   };
diff --git a/pkgs/applications/window-managers/i3/easyfocus.nix b/pkgs/applications/window-managers/i3/easyfocus.nix
index 9ce5486557a58..5c7a22eb76949 100644
--- a/pkgs/applications/window-managers/i3/easyfocus.nix
+++ b/pkgs/applications/window-managers/i3/easyfocus.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Focus and select windows in i3";
-    homepage = https://github.com/cornerman/i3-easyfocus;
+    homepage = "https://github.com/cornerman/i3-easyfocus";
     maintainers = with maintainers; [teto];
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/i3/i3ipc-glib.nix b/pkgs/applications/window-managers/i3/i3ipc-glib.nix
index 33aac1cf4b659..7e6a18c93c56e 100644
--- a/pkgs/applications/window-managers/i3/i3ipc-glib.nix
+++ b/pkgs/applications/window-managers/i3/i3ipc-glib.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A C interface library to i3wm";
-    homepage = https://github.com/acrisci/i3ipc-glib;
+    homepage = "https://github.com/acrisci/i3ipc-glib";
     maintainers = with maintainers; [teto];
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/i3/layout-manager.nix b/pkgs/applications/window-managers/i3/layout-manager.nix
index c7454981400d6..f4c2a53b7a29d 100644
--- a/pkgs/applications/window-managers/i3/layout-manager.nix
+++ b/pkgs/applications/window-managers/i3/layout-manager.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/klaxalk/i3-layout-manager;
+    homepage = "https://github.com/klaxalk/i3-layout-manager";
     description = "Saving, loading and managing layouts for i3wm.";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/i3/lock-fancy.nix b/pkgs/applications/window-managers/i3/lock-fancy.nix
index b6b354021d969..9b9b2dea13283 100644
--- a/pkgs/applications/window-managers/i3/lock-fancy.nix
+++ b/pkgs/applications/window-managers/i3/lock-fancy.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   '';
   meta = with stdenv.lib; {
     description = "i3lock is a bash script that takes a screenshot of the desktop, blurs the background and adds a lock icon and text.";
-    homepage = https://github.com/meskarune/i3lock-fancy;
+    homepage = "https://github.com/meskarune/i3lock-fancy";
     maintainers = with maintainers; [ ];
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/i3/lock.nix b/pkgs/applications/window-managers/i3/lock.nix
index 619345d1b96da..2bca01eeefa7d 100644
--- a/pkgs/applications/window-managers/i3/lock.nix
+++ b/pkgs/applications/window-managers/i3/lock.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
       a configurable image is shown, and a ring-shaped unlock-indicator gives feedback
       for every keystroke. After entering your password, the screen is unlocked again.
     '';
-    homepage = https://i3wm.org/i3lock/;
+    homepage = "https://i3wm.org/i3lock/";
     maintainers = with maintainers; [ malyn domenkozar ];
     license = licenses.bsd3;
     platforms = platforms.all;
diff --git a/pkgs/applications/window-managers/i3/pystatus.nix b/pkgs/applications/window-managers/i3/pystatus.nix
index 20ea0dd03cc34..29bda8e4e2b09 100644
--- a/pkgs/applications/window-managers/i3/pystatus.nix
+++ b/pkgs/applications/window-managers/i3/pystatus.nix
@@ -32,7 +32,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/enkore/i3pystatus;
+    homepage = "https://github.com/enkore/i3pystatus";
     description = "A complete replacement for i3status";
     longDescription = ''
       i3pystatus is a growing collection of python scripts for status output compatible
diff --git a/pkgs/applications/window-managers/i3/status-rust.nix b/pkgs/applications/window-managers/i3/status-rust.nix
index b28c95e6bfb13..62389e1230ad5 100644
--- a/pkgs/applications/window-managers/i3/status-rust.nix
+++ b/pkgs/applications/window-managers/i3/status-rust.nix
@@ -22,7 +22,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Very resource-friendly and feature-rich replacement for i3status";
-    homepage = https://github.com/greshake/i3status-rust;
+    homepage = "https://github.com/greshake/i3status-rust";
     license = licenses.gpl3;
     maintainers = with maintainers; [ backuitist globin ma27 ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/i3/status.nix b/pkgs/applications/window-managers/i3/status.nix
index e963259b62474..6005ca3ab3a6c 100644
--- a/pkgs/applications/window-managers/i3/status.nix
+++ b/pkgs/applications/window-managers/i3/status.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Generates a status line for i3bar, dzen2, xmobar or lemonbar";
-    homepage = https://i3wm.org;
+    homepage = "https://i3wm.org";
     maintainers = [ ];
     license = stdenv.lib.licenses.bsd3;
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/window-managers/i3/wk-switch.nix b/pkgs/applications/window-managers/i3/wk-switch.nix
index 98855517303e1..51881975266d0 100644
--- a/pkgs/applications/window-managers/i3/wk-switch.nix
+++ b/pkgs/applications/window-managers/i3/wk-switch.nix
@@ -26,6 +26,6 @@ python3Packages.buildPythonApplication rec {
     maintainers = with maintainers; [ synthetica ];
     platforms = platforms.linux;
     license = licenses.mit;
-    homepage = https://travisf.net/i3-wk-switcher;
+    homepage = "https://travisf.net/i3-wk-switcher";
   };
 }
diff --git a/pkgs/applications/window-managers/ion-3/default.nix b/pkgs/applications/window-managers/ion-3/default.nix
index 073af3bfd053b..57c91c2cfb724 100644
--- a/pkgs/applications/window-managers/ion-3/default.nix
+++ b/pkgs/applications/window-managers/ion-3/default.nix
@@ -4,12 +4,12 @@ stdenv.mkDerivation {
   name = "ion-3-20090110";
   meta = {
     description = "Tiling tabbed window manager designed with keyboard users in mind";
-    homepage = http://modeemi.fi/~tuomov/ion;
+    homepage = "http://modeemi.fi/~tuomov/ion";
     platforms = with stdenv.lib.platforms; linux;
     license = stdenv.lib.licenses.lgpl21;
   };
   src = fetchurl {
-    url = http://tuomov.iki.fi/software/dl/ion-3-20090110.tar.gz;
+    url = "http://tuomov.iki.fi/software/dl/ion-3-20090110.tar.gz";
     sha256 = "1nkks5a95986nyfkxvg2rik6zmwx0lh7szd5fji7yizccwzc9xns";
   };
   buildInputs = [ xlibsWrapper lua gettext groff ];
diff --git a/pkgs/applications/window-managers/jwm/default.nix b/pkgs/applications/window-managers/jwm/default.nix
index 3668b344be508..601cf3cded6c2 100644
--- a/pkgs/applications/window-managers/jwm/default.nix
+++ b/pkgs/applications/window-managers/jwm/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   preConfigure = "./autogen.sh";
 
   meta = {
-    homepage = http://joewing.net/projects/jwm/;
+    homepage = "http://joewing.net/projects/jwm/";
     description = "Joe's Window Manager is a light-weight X11 window manager";
     license = stdenv.lib.licenses.gpl2;
     platforms   = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/window-managers/jwm/jwm-settings-manager.nix b/pkgs/applications/window-managers/jwm/jwm-settings-manager.nix
index db33b27ddd81f..d6fe5b4200c4d 100644
--- a/pkgs/applications/window-managers/jwm/jwm-settings-manager.nix
+++ b/pkgs/applications/window-managers/jwm/jwm-settings-manager.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A full configuration manager for JWM";
-    homepage = https://joewing.net/projects/jwm;
+    homepage = "https://joewing.net/projects/jwm";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.romildo ];
diff --git a/pkgs/applications/window-managers/kbdd/default.nix b/pkgs/applications/window-managers/kbdd/default.nix
index bcfcbe3c5f525..de1a68a56bfb3 100644
--- a/pkgs/applications/window-managers/kbdd/default.nix
+++ b/pkgs/applications/window-managers/kbdd/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Simple daemon and library to make per window layout using XKB";
-    homepage = https://github.com/qnikst/kbdd;
+    homepage = "https://github.com/qnikst/kbdd";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.wedens ];
diff --git a/pkgs/applications/window-managers/larswm/default.nix b/pkgs/applications/window-managers/larswm/default.nix
index f6f3132178c5c..b918c28938c1d 100644
--- a/pkgs/applications/window-managers/larswm/default.nix
+++ b/pkgs/applications/window-managers/larswm/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "larswm-7.5.3";
 
   src = fetchurl {
-    url = mirror://sourceforge/larswm/larswm-7.5.3.tar.gz;
+    url = "mirror://sourceforge/larswm/larswm-7.5.3.tar.gz";
     sha256 = "1xmlx9g1nhklxjrg0wvsya01s4k5b9fphnpl9zdwp29mm484ni3v";
   };
 
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   installTargets = [ "install" "install.man" ];
 
   meta = {
-    homepage = http://www.fnurt.net/larswm;
+    homepage = "http://www.fnurt.net/larswm";
     description = "9wm-like tiling window manager";
     license = stdenv.lib.licenses.free;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/window-managers/lemonbar/default.nix b/pkgs/applications/window-managers/lemonbar/default.nix
index 9d6e0f27f9342..89b4fecc20670 100644
--- a/pkgs/applications/window-managers/lemonbar/default.nix
+++ b/pkgs/applications/window-managers/lemonbar/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   
   meta = with stdenv.lib; {
     description = "A lightweight xcb based bar";
-    homepage = https://github.com/LemonBoy/bar;
+    homepage = "https://github.com/LemonBoy/bar";
     maintainers = [ maintainers.meisternu ];
     license = "Custom";   
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/lemonbar/xft.nix b/pkgs/applications/window-managers/lemonbar/xft.nix
index ff34f1dfee78c..a70e5a4dc5c08 100644
--- a/pkgs/applications/window-managers/lemonbar/xft.nix
+++ b/pkgs/applications/window-managers/lemonbar/xft.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A lightweight xcb based bar with XFT-support";
-    homepage = https://github.com/krypt-n/bar;
+    homepage = "https://github.com/krypt-n/bar";
     license = "Custom";
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/window-managers/neocomp/default.nix b/pkgs/applications/window-managers/neocomp/default.nix
index 026ee2e1287e6..57968922c390d 100644
--- a/pkgs/applications/window-managers/neocomp/default.nix
+++ b/pkgs/applications/window-managers/neocomp/default.nix
@@ -71,7 +71,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage        = https://github.com/DelusionalLogic/NeoComp;
+    homepage        = "https://github.com/DelusionalLogic/NeoComp";
     license         = licenses.gpl3;
     maintainers     = with maintainers; [ twey ];
     platforms       = platforms.linux;
diff --git a/pkgs/applications/window-managers/openbox/default.nix b/pkgs/applications/window-managers/openbox/default.nix
index c8d526b6d2882..a4ec6d067dcad 100644
--- a/pkgs/applications/window-managers/openbox/default.nix
+++ b/pkgs/applications/window-managers/openbox/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "X window manager for non-desktop embedded systems";
-    homepage = http://openbox.org/;
+    homepage = "http://openbox.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/window-managers/oroborus/default.nix b/pkgs/applications/window-managers/oroborus/default.nix
index d449fc91c0d38..21b18a4917bd6 100644
--- a/pkgs/applications/window-managers/oroborus/default.nix
+++ b/pkgs/applications/window-managers/oroborus/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A really minimalistic X window manager";
-    homepage = https://www.oroborus.org/;
+    homepage = "https://www.oroborus.org/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/pekwm/default.nix b/pkgs/applications/window-managers/pekwm/default.nix
index 38255dce72246..da2c11c873b1b 100644
--- a/pkgs/applications/window-managers/pekwm/default.nix
+++ b/pkgs/applications/window-managers/pekwm/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
         appear as they should when starting applications.
       - Chainable Keygrabber, usability for everyone.
     '';
-      homepage = http://www.pekwm.org;
+      homepage = "http://www.pekwm.org";
       license = licenses.gpl2;
       maintainers = [ maintainers.AndersonTorres ];
       platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/qtile/default.nix b/pkgs/applications/window-managers/qtile/default.nix
index 6d0e6bdac45e0..eb56e9c163905 100644
--- a/pkgs/applications/window-managers/qtile/default.nix
+++ b/pkgs/applications/window-managers/qtile/default.nix
@@ -44,7 +44,7 @@ python37Packages.buildPythonApplication rec {
   doCheck = false; # Requires X server.
 
   meta = with stdenv.lib; {
-    homepage = http://www.qtile.org/;
+    homepage = "http://www.qtile.org/";
     license = licenses.mit;
     description = "A small, flexible, scriptable tiling window manager written in Python";
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/ratpoison/default.nix b/pkgs/applications/window-managers/ratpoison/default.nix
index 11a69020ee623..4c7cdf1069f91 100644
--- a/pkgs/applications/window-managers/ratpoison/default.nix
+++ b/pkgs/applications/window-managers/ratpoison/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.nongnu.org/ratpoison/;
+    homepage = "https://www.nongnu.org/ratpoison/";
     description = "Simple mouse-free tiling window manager";
     license = licenses.gpl2Plus;
 
diff --git a/pkgs/applications/window-managers/sawfish/default.nix b/pkgs/applications/window-managers/sawfish/default.nix
index f9bcb28e45579..18c3d22f944e0 100644
--- a/pkgs/applications/window-managers/sawfish/default.nix
+++ b/pkgs/applications/window-managers/sawfish/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
       All high-level WM functions are implemented in Lisp for future extensibility
       or redefinition.
     '';
-    homepage = http://sawfish.wikia.com;
+    homepage = "http://sawfish.wikia.com";
     license = licenses.gpl2;
     maintainers = [ maintainers.AndersonTorres ];
   };
diff --git a/pkgs/applications/window-managers/stalonetray/default.nix b/pkgs/applications/window-managers/stalonetray/default.nix
index f0f724d6cf0e4..ad0baeb97dd25 100644
--- a/pkgs/applications/window-managers/stalonetray/default.nix
+++ b/pkgs/applications/window-managers/stalonetray/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Stand alone tray";
-    homepage = http://stalonetray.sourceforge.net;
+    homepage = "http://stalonetray.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ raskin ];
diff --git a/pkgs/applications/window-managers/stumpish/default.nix b/pkgs/applications/window-managers/stumpish/default.nix
index 00f4b95b3f273..c76a9ba762efe 100644
--- a/pkgs/applications/window-managers/stumpish/default.nix
+++ b/pkgs/applications/window-managers/stumpish/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/stumpwm/stumpwm-contrib;
+    homepage = "https://github.com/stumpwm/stumpwm-contrib";
     description = "STUMPwm Interactive SHell";
     license = licenses.gpl2;
     maintainers = [ maintainers.ebzzry ];
diff --git a/pkgs/applications/window-managers/stumpwm/default.nix b/pkgs/applications/window-managers/stumpwm/default.nix
index 69b2e6ceb50f8..3ee50bf16ec82 100644
--- a/pkgs/applications/window-managers/stumpwm/default.nix
+++ b/pkgs/applications/window-managers/stumpwm/default.nix
@@ -95,7 +95,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A tiling window manager for X11";
-    homepage    = https://github.com/stumpwm/;
+    homepage    = "https://github.com/stumpwm/";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ the-kenny ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/window-managers/sway/default.nix b/pkgs/applications/window-managers/sway/default.nix
index a020c10a34851..66596d9de04ba 100644
--- a/pkgs/applications/window-managers/sway/default.nix
+++ b/pkgs/applications/window-managers/sway/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "i3-compatible tiling Wayland compositor";
-    homepage    = https://swaywm.org;
+    homepage    = "https://swaywm.org";
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ primeos synthetica ma27 ];
diff --git a/pkgs/applications/window-managers/tabbed/default.nix b/pkgs/applications/window-managers/tabbed/default.nix
index c391532376e31..f0a427e683952 100644
--- a/pkgs/applications/window-managers/tabbed/default.nix
+++ b/pkgs/applications/window-managers/tabbed/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   name = "tabbed-20180310";
 
   src = fetchgit {
-    url = https://git.suckless.org/tabbed;
+    url = "https://git.suckless.org/tabbed";
     rev = "b5f9ec647aae2d9a1d3bd586eb7523a4e0a329a3";
     sha256 = "0frj2yjaf0mfjwgyfappksfir52mx2xxd3cdg5533m5d88vbmxss";
   };
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   ];
 
   meta = {
-    homepage = https://tools.suckless.org/tabbed;
+    homepage = "https://tools.suckless.org/tabbed";
     description = "Simple generic tabbed fronted to xembed aware applications";
     license = licenses.mit;
     maintainers = with maintainers; [ vrthra ];
diff --git a/pkgs/applications/window-managers/trayer/default.nix b/pkgs/applications/window-managers/trayer/default.nix
index 5705ae8256c87..5c3d8710e35dc 100644
--- a/pkgs/applications/window-managers/trayer/default.nix
+++ b/pkgs/applications/window-managers/trayer/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   makeFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sargon/trayer-srg;
+    homepage = "https://github.com/sargon/trayer-srg";
     license = licenses.mit;
     description = "A lightweight GTK2-based systray for UNIX desktop";
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/vwm/default.nix b/pkgs/applications/window-managers/vwm/default.nix
index 3423b0e181d51..8eb42bb9a97dc 100644
--- a/pkgs/applications/window-managers/vwm/default.nix
+++ b/pkgs/applications/window-managers/vwm/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses glib libviper libpseudo gpm libvterm ];
  
   meta = with stdenv.lib; {
-    homepage = http://vwm.sourceforge.net/;
+    homepage = "http://vwm.sourceforge.net/";
     description = "Dynamic window manager for the console";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/window-managers/weston/default.nix b/pkgs/applications/window-managers/weston/default.nix
index 51da999aff0c8..4a09cac9344ac 100644
--- a/pkgs/applications/window-managers/weston/default.nix
+++ b/pkgs/applications/window-managers/weston/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Reference implementation of a Wayland compositor";
-    homepage = https://wayland.freedesktop.org/;
+    homepage = "https://wayland.freedesktop.org/";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ primeos ];
diff --git a/pkgs/applications/window-managers/windowmaker/default.nix b/pkgs/applications/window-managers/windowmaker/default.nix
index 8ad63999289e6..64783ac5fbe88 100644
--- a/pkgs/applications/window-managers/windowmaker/default.nix
+++ b/pkgs/applications/window-managers/windowmaker/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://windowmaker.org/;
+    homepage = "http://windowmaker.org/";
     description = "NeXTSTEP-like window manager";
     longDescription = ''
       Window Maker is an X11 window manager originally designed to
diff --git a/pkgs/applications/window-managers/windowmaker/dockapps/alsamixer.app.nix b/pkgs/applications/window-managers/windowmaker/dockapps/alsamixer.app.nix
index e708682e3036f..4e1256399e768 100644
--- a/pkgs/applications/window-managers/windowmaker/dockapps/alsamixer.app.nix
+++ b/pkgs/applications/window-managers/windowmaker/dockapps/alsamixer.app.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "alsamixer.app-0.2.1";
   src = fetchgit {
-     url = git://repo.or.cz/dockapps.git;
+     url = "git://repo.or.cz/dockapps.git";
      rev = "38c74350b02f35824554ce0c4f0f251d71762040";
      sha256 = "0g9cwhlqg065fbhav4g4n16a4cqkk9jykl3y0zwbn5whhacfqyhl";
   };
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Alsa mixer application for Windowmaker";
-    homepage = http://windowmaker.org/dockapps/?name=AlsaMixer.app;
+    homepage = "http://windowmaker.org/dockapps/?name=AlsaMixer.app";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.bstrik ];
   };
diff --git a/pkgs/applications/window-managers/windowmaker/dockapps/wmcalclock.nix b/pkgs/applications/window-managers/windowmaker/dockapps/wmcalclock.nix
index e2f17d11f64dd..48f4753d674b4 100644
--- a/pkgs/applications/window-managers/windowmaker/dockapps/wmcalclock.nix
+++ b/pkgs/applications/window-managers/windowmaker/dockapps/wmcalclock.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "wmCalClock-1.25";
   src = fetchurl {
-     url = http://www.cs.mun.ca/~gstarkes/wmaker/dockapps/files/wmCalClock-1.25.tar.gz;
+     url = "http://www.cs.mun.ca/~gstarkes/wmaker/dockapps/files/wmCalClock-1.25.tar.gz";
      sha256 = "4b42b55bb7c1d7c58b5ee1f0058c683d3e4f3e3380d3a69c54a50b983c7c1b3f";
   };
 
diff --git a/pkgs/applications/window-managers/windowmaker/dockapps/wmsm.app.nix b/pkgs/applications/window-managers/windowmaker/dockapps/wmsm.app.nix
index 3e8b3f7f1584d..ad255414a6923 100644
--- a/pkgs/applications/window-managers/windowmaker/dockapps/wmsm.app.nix
+++ b/pkgs/applications/window-managers/windowmaker/dockapps/wmsm.app.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "wmsm.app-0.2.1";
   src = fetchurl {
-     url = http://linux-bsd-unix.strefa.pl/wmsm.app-0.2.1.tar.bz2;
+     url = "http://linux-bsd-unix.strefa.pl/wmsm.app-0.2.1.tar.bz2";
      sha256 = "369a8f2e5673c6b7ab0cf85166f38fbf553dd966c3c1cfeec0e32837defd32c7";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "System monitor for Windowmaker";
-    homepage = http://linux-bsd-unix.strefa.pl;
+    homepage = "http://linux-bsd-unix.strefa.pl";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.bstrik ];
   };
diff --git a/pkgs/applications/window-managers/windowmaker/dockapps/wmsystemtray.nix b/pkgs/applications/window-managers/windowmaker/dockapps/wmsystemtray.nix
index e5eb2fc559da5..3e073cd8e91b2 100644
--- a/pkgs/applications/window-managers/windowmaker/dockapps/wmsystemtray.nix
+++ b/pkgs/applications/window-managers/windowmaker/dockapps/wmsystemtray.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "wmsystemtray-1.4";
   src = fetchurl {
-     url = mirror://sourceforge/project/wmsystemtray/wmsystemtray/wmsystemtray-1.4.tar.gz;
+     url = "mirror://sourceforge/project/wmsystemtray/wmsystemtray/wmsystemtray-1.4.tar.gz";
      sha256 = "8edef43691e9fff071000e29166c7c1ad420c0956e9068151061e881c8ac97e9";
   };
 
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Systemtray for Windowmaker";
-    homepage = http://wmsystemtray.sourceforge.net;
+    homepage = "http://wmsystemtray.sourceforge.net";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.bstrik ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/window-managers/wmii-hg/default.nix b/pkgs/applications/window-managers/wmii-hg/default.nix
index 426fcfe8efcee..721e618b1d435 100644
--- a/pkgs/applications/window-managers/wmii-hg/default.nix
+++ b/pkgs/applications/window-managers/wmii-hg/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   pname = "wmii";
 
   src = fetchurl {
-    url = https://storage.googleapis.com/google-code-archive-source/v2/code.google.com/wmii/source-archive.zip;
+    url = "https://storage.googleapis.com/google-code-archive-source/v2/code.google.com/wmii/source-archive.zip";
     sha256 = "1wmkq14zvmfrmydl8752xz852cy7agrx3qp4fy2cc5asb2r9abaz";
   };
 
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
   makeFlags = [ "WMII_HGVERSION=hg${rev}" ];
 
   meta = {
-    homepage = https://suckless.org/; # https://wmii.suckless.org/ does not exist anymore
+    homepage = "https://suckless.org/"; # https://wmii.suckless.org/ does not exist anymore
     description = "A small window manager controlled by a 9P filesystem";
     maintainers = with stdenv.lib.maintainers; [ kovirobi ];
     license = stdenv.lib.licenses.mit;
diff --git a/pkgs/applications/window-managers/xmonad/log-applet/default.nix b/pkgs/applications/window-managers/xmonad/log-applet/default.nix
index f7ccda273890b..7c6041b576e3a 100644
--- a/pkgs/applications/window-managers/xmonad/log-applet/default.nix
+++ b/pkgs/applications/window-managers/xmonad/log-applet/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
   PKG_CONFIG_LIBXFCE4PANEL_1_0_LIBDIR = "$(out)/lib";
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/kalj/xmonad-log-applet;
+    homepage = "https://github.com/kalj/xmonad-log-applet";
     license = licenses.bsd3;
     description = "An applet that will display XMonad log information (${desktopSupport} version)";
     platforms = platforms.linux;
diff --git a/pkgs/applications/window-managers/yabar/build.nix b/pkgs/applications/window-managers/yabar/build.nix
index f7867882d2229..10806ba78cfe6 100644
--- a/pkgs/applications/window-managers/yabar/build.nix
+++ b/pkgs/applications/window-managers/yabar/build.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A modern and lightweight status bar for X window managers";
-    homepage    = https://github.com/geommer/yabar;
+    homepage    = "https://github.com/geommer/yabar";
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ ma27 ];