anchor.diff:      gst_all_1.gstreamer
       gtk3
       libcanberra-gtk3
  -    libgudev
       librsvg
  -    udev
     ];
   
  -  outputs = [ "out" "man" "devdoc" ];
  +  postPatch = ''
  +    chmod +x meson_post_install.py
  +    patchShebangs meson_post_install.py
  +  '';
   
     preFixup = ''
       gappsWrapperArgs+=(
  
positive.code:   pname = "cheese";
    version = "3.38.0";
  
    src = fetchurl {
      url = "mirror://gnome/sources/cheese/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "0vyim2avlgq3a48rgdfz5g21kqk11mfb53b2l883340v88mp7ll8";
  
negative.code: { lib
  , stdenv
  , gettext
  , fetchurl
  , fetchpatch
  