treewide: Per RFC45, remove all unquoted URLs

86 files changed, 93 insertions, 93 deletions

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" ];