anchor.diff:  
       (python3.withPackages (pp: with pp; [ pygobject3 setproctitle xapp pycairo ]))
       xapps
  +    xdotool
       pam
       accountsservice
       cairo
  
positive.code: { lib
  , stdenv
  , fetchFromGitHub
  , pkg-config
  , meson
  , ninja
  
negative.code: 
      # things
      iso-flags-png-320x420
    ];
  
    postPatch = ''
  