release.nix: Only build ISOs if createISO is set.

Here we have our actual implementation. Note however, that one can still
build an ISO image out of any machine by using:

nix-build machines -A machine.attr.iso.config.system.build.isoImage

However, none of these ISOs are built by default, except for kzerza,
which has vuizvui.createISO enabled.

The implementation has one little goof as it creates empty attrsets if a
particular machine doesn't have createISO enabled. But for our current
purposes that's okay "enough".

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

0 files changed, 0 insertions, 0 deletions