anchor.diff:      # keyboard layout
       layout = "us";
       xkbVariant = "colemak";
  +    autoRepeatDelay = 200;  # delay before a key repeats, in milliseconds
  +    autoRepeatInterval = 60;  # delay between repeat strokes, in milliseconds
   
       # display (login) and desktop managers
       displayManager.gdm.enable = true;
  
positive.code:     extraGroups = [ "wheel" "sudo" "networkmanager" ];
      shell = pkgs.zsh;
    };
  }
  
negative.code: 
    environment.systemPackages = with pkgs; [
      firefox  # web browser
      git  # version control system
      vim  # text editors
      wget  # retrieve files from the web
      zsh  # better than bash
    ];
  
    users.users.perlinm = {
      isNormalUser = true;
  