You probably are here because I referred you to some particular bit to show you how to make something work. If you are here on your own, maybe you can learn something from my configs, but beware that that something certainly can't be "Nix good practices".
All code here is licensed under WTFPL license, except for code in hosts/baraddur/m1-support/ folder,
which is adapted from incredibly awesome nixos-m1 project,
which original author licensed under totally non-meme MIT license for some reason.