anchor.diff:  , glib
   , clutter-gtk
   , clutter-gst
  -, udev
   , gst_all_1
   , itstool
  -, libgudev
   , vala
   , docbook_xml_dtd_43
  -, docbook_xsl
  +, docbook-xsl-nons
   , appstream-glib
   , libxslt
  -, gnome-common
   , gtk-doc
   , adwaita-icon-theme
   , librsvg
  
positive.code: { lib, stdenv
  , gettext
  , fetchurl
  , fetchpatch
  
negative.code:     gst_all_1.gstreamer
      gtk3
      libcanberra-gtk3
      librsvg
    ];
  
    postPatch = ''
      chmod +x meson_post_install.py
      patchShebangs meson_post_install.py
    '';
  
    preFixup = ''
      gappsWrapperArgs+=(
  