Long-term this should make it easy to include all the GUI programs with
the desktop module and all the CLI programs with the shell module, as
well as the ability to easily disable sets of unneeded packages.
This is the start of making it possible to include desktop-related
configuration options instead of only hyprland-related ones.
This simplifies things a bit since opinionated configurations can be
hidden behind an option and end users won't have to worry about all
the different possible modules they could import.
Although it would be nice to use a Wayland image viewer, currently all
of them (that I am aware of) suffer from anti-aliasing issues not present
in feh.
Alacritty does not support MapleMono-NF as a font, whereas kitty does.
kitty also has other nice features such as built-in windows/tabs and
image support.
Note that loading a runtime file in ~/.cache/wal is no longer necessary
since configuration is done declaratively through Nix.
Although this has some downsides, such as the lack of "live reloading"
in some applications, this "feature" wasn't present across all
applications anyway.
