anchor.diff:  
       environment.systemPackages = [
         pkgs.gnome3.gnome-initial-setup
  -    ];
  +    ]
  +    ++ optional (versionOlder config.system.stateVersion "20.03") createGisStampFilesAutostart
  +    ;
   
       systemd.packages = [
         pkgs.gnome3.gnome-initial-setup
  
positive.code: { config, pkgs, lib, ... }:
  
  with lib;
  
  {
  
  
negative.code:       "gnome-initial-setup.service"
      ];
  
    };
  
  }
  