anchor.diff:    services.xserver.enable = true;
     services.xserver.videoDrivers = [ "nvidia" ];
   
  -
     # Enable the GNOME Desktop Environment.
     services.xserver.displayManager.gdm.enable = true;
     services.xserver.desktopManager.gnome.enable = true;
  
positive.code:   # services.xserver.libinput.enable = true;
  
    # Define a user account. Don't forget to set a password with ‘passwd’.
    # users.users.jane = {
    #   isNormalUser = true;
    #   extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
    # };
    users.users.mjhoy = {
      isNormalUser = true;
      uid = 1000;
  
negative.code:   # Before changing this value read the documentation for this option
    # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
    system.stateVersion = "21.05"; # Did you read the comment?
  }
  
  