anchor.diff:  , ninja
   , vala
   , pkg-config
  +, desktop-file-utils
   , wrapGAppsHook4
   , gobject-introspection
   , gettext
   , itstool
   , libxml2
  -, python3
   , gnome
   , glib
   , gtk4
  
positive.code:     gettext
      itstool
      libxml2
      python3
      wrapGAppsHook4
      gobject-introspection
    ];
  
negative.code:     librsvg
      pango
    ];
  
    passthru = {
      updateScript = gnome.updateScript {
  