anchor.diff:  
       # things
       iso-flags-png-320x420
  -  ];
  -
  -  mesonFlags = [
  -    # TODO: https://github.com/NixOS/nixpkgs/issues/36468
  -    "-Dc_args=-I${glib.dev}/include/gio-unix-2.0"
     ];
   
     postPatch = ''
  
positive.code: 
      (python3.withPackages (pp: with pp; [ pygobject3 setproctitle xapp pycairo ]))
      xapps
      pam
      accountsservice
      cairo
  
negative.code: { lib
  , stdenv
  , fetchFromGitHub
  , fetchpatch
  , pkg-config
  , meson
  , ninja
  