anchor.diff:  let
     basename = "streamlink-twitch-gui";
     runtimeLibs = lib.makeLibraryPath [ libudev0-shim ];
  +  runtimeBins = lib.makeBinPath [ streamlink ];
     arch =
       if stdenv.hostPlatform.system == "x86_64-linux"
       then
  
positive.code:     description = "Twitch.tv browser for Streamlink";
      longDescription = "Browse Twitch.tv and watch streams in your videoplayer of choice";
      homepage = "https://streamlink.github.io/streamlink-twitch-gui/";
      downloadPage = https://github.com/streamlink/streamlink-twitch-gui/releases;
      license = licenses.mit;
      maintainers = with maintainers; [ rileyinman ];
      platforms = [ "x86_64-linux" "i686-linux" ];
  
negative.code:   dontConfigure = true;
  
    installPhase = ''
      runHook preInstall
      mkdir -p $out/{bin,opt/${basename},share}
  
      # Install all files, remove unnecessary ones
      cp -a . $out/opt/${basename}/
      rm -r $out/opt/${basename}/{{add,remove}-menuitem.sh,credits.html,icons/}
      ln -s "$out/opt/${basename}/${basename}" $out/bin/
      cp -r "${desktopItem}/share/applications" $out/share/
      runHook postInstall
    '';
  
    preFixup = ''
      gappsWrapperArgs+=(
        --add-flags "--no-version-check" \
        --prefix LD_LIBRARY_PATH : ${runtimeLibs} \
        --prefix PATH : ${runtimeBins}
      )
    '';
  
    desktopItem = makeDesktopItem {
  