My systems are single-user machines and the package configuration can
go in the system-wide package list in full.
This splits out the package list into a separate file and also moves
the systemd units for wallpaper setting into a separate file.
The wallpaper folder is now in git and feh will pick any random file in
the folder that it is pointed at, leading to it constantly failing while
trying to set git objects as the wallpaper.
This uses manual 'fd | shuf | xargs' pipeline for the same purpose.
Adds NixOS configuration to configure my base system with all sorts of things,
including - but not limited to - i3, emacs, FF57, connman and so on.
Not all of these things are fully configured yet (especially in the desktop
environment) but I'm hoping to get more of that done in the future.
