My personal NixOS configuration.
# test changes
sudo cp -r ./* /etc/nixos/; sudo nixos-rebuild test
# pull updates
sudo nixos-rebuild switch --upgrade
https://nixos.org/nixos/packages.html
https://nixos.org/nixos/options.html
https://github.com/NixOS/nixpkgs/
https://nixos.wiki/wiki/Cheatsheet
https://github.com/NixOS/nixos-hardware#using-channels