My own NixOS setup.
nix develop --extra-experimental-features nix-command --extra-experimental-features flakes
nix flake update
sudo nixos-rebuild switch --flake .#<hostname>To apply the Home Manager configuration:
home-manager switch --flake .#kouroshReplace <hostname> with one of the hosts defined in flake.nix such as homie, arvanix or x1g12.