{ ... }: {
  programs.fish.functions = {
    clone.body = ''
      echo "cd ~/git/"
      cd $HOME/git
      git clone $argv && cd $(basename $argv .git)
    '';
    # NIX
    rebuild.body = ''
      git add ~/.flake/.
      for ARG in $argv
        if [ $ARG = home ]
          command home-manager switch --flake ~/.flake
          return $status
        else if [ $ARG = host ]
          command sudo nixos-rebuild switch --flake ~/.flake
          return $status
        else
          command echo "Select 'home' or 'host'"
        end
      end
    '';
    nrun.body = ''
      nix run nixpkgs#$argv
    '';
    nshell.body = ''
      nix shell nixpkgs#$argv
    '';
    nbuild.body = ''
      nix build nixpkgs#$argv
    '';
    nclean.body = ''
      nix-env --delete-generations old
      nix-store --gc
      nix-collect-garbage -d
    '';
  };
}