anchor.diff:  
     cargoBuildFlags = [ "--features=ffmpeg-system" ];
     cargoTestFlags = [ "--features=ffmpeg-system" ];
  +
  +  postFixup = let
  +    GST_PLUGIN_PATH = lib.makeSearchPathOutput  "lib" "lib/gstreamer-1.0" [
  +      gst_all_1.gst-plugins-base
  +      pipewire
  +    ];
  +  in lib.optionalString stdenv.isLinux ''
  +    wrapProgram $out/bin/weylus --prefix GST_PLUGIN_PATH : ${GST_PLUGIN_PATH}
  +  '';
   
     postInstall = ''
       install -vDm755 weylus.desktop $out/share/applications/weylus.desktop
  
positive.code:   nativeBuildInputs = [
      cmake
      nodePackages.typescript
    ] ++ lib.optionals stdenv.isLinux [
      pkg-config
      autoconf
  
negative.code: , libdrm
  , pkg-config
  , pango
  , pipewire
  , cmake
  , autoconf
  , libtool
  