anchor.diff:  , libxslt
   , docbook-xsl-nons
   , docbook_xml_dtd_42
  -, python3
  +, desktop-file-utils
   , gtk4
   , glib
   , libportal
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "gnome-contacts";
    version = "42.alpha";
  
    src = fetchurl {
      url = "mirror://gnome/sources/gnome-contacts/${lib.versions.major version}/${pname}-${version}.tar.xz";
      sha256 = "nTMBGn3/FW/zCNwgGiFSE6vV3x7lyZxKnmc4atwoTA8=";
    };
  
    propagatedUserEnvPkgs = [
  
negative.code:     libxslt
      docbook-xsl-nons
      docbook_xml_dtd_42
      desktop-file-utils
      wrapGAppsHook
    ];
  
  