anchor.diff:  , gobject-introspection
   , vala
   , gtk-doc
  -, docbook_xsl
  +, docbook-xsl-nons
   , docbook_xml_dtd_43
   , gtk3
   , glade
  
positive.code: { lib, stdenv
  , fetchurl
  , meson
  , ninja
  
negative.code:       meson test --print-errorlogs
    '';
  
    passthru = {
      updateScript = gnome3.updateScript {
        packageName = pname;
      };
    };
  
    meta = with lib; {
      changelog = "https://gitlab.gnome.org/GNOME/libhandy/-/tags/${version}";
      description = "Building blocks for modern adaptive GNOME apps";
  