anchor.diff:      ninja
       pkg-config
       vala
  -    wrapGAppsHook
  +    wrapGAppsNoGuiHook
     ];
   
     # TODO: add libenca, libosinfo
  
positive.code:     libjpeg
      libosinfo
      libpng
      libsoup
      libtiff
      libuuid
      libxml2
      poppler
      taglib
    ] ++ lib.optionals stdenv.isLinux [
      evolution-data-server
      libseccomp
      networkmanager
      systemd
  
negative.code: , libosinfo
  , libpng
  , libseccomp
  , libtiff
  , libuuid
  , libxml2
  