anchor.diff:  , ninja
   , pkg-config
   , pulseaudio
  -, wrapGAppsHook
  +, wrapGAppsHook4
   }:
   
   python3.pkgs.buildPythonApplication rec {
  
positive.code:     meson
      ninja
      pkg-config
      wrapGAppsHook
    ];
  
    buildInputs = [
  
negative.code:   ];
  
    postPatch = ''
      substituteInPlace build-aux/meson/postinstall.py \
        --replace gtk-update-icon-cache gtk4-update-icon-cache
  
      patchShebangs build-aux/meson
    '';
  
  