anchor.diff:      distutils_extra
       intltool
       wrapGAppsHook
  +    gdk-pixbuf
     ];
   
     buildInputs = [
  
positive.code:   # do not double wrap
    dontWrapGApps = true;
    preFixup = ''
      makeWrapperArgs+=("''${gappsWrapperArgs[@]}" --prefix PATH : "${lib.makeBinPath [ wmctrl ]}")
    '';
  
    passthru = {
  
negative.code:     pyinotify
      python-Levenshtein
      pyxdg
      pycairo
      requests
      websocket-client
    ];
  