Hi,
I have added a package for the Nomacs Image viewer. It is built with
plugins but not with HEIF or PSD support. I tried creating a package for
the libqpsd package but was unable to get the qt plugin to appear in the
right location. It seems to build fine with `./pre-inst-env guix build
--rounds=2 nomacs` so hopefully its good enough for inclusion despite these
missing features.