anchor.diff:  
     meta = {
       description = "Telegram Desktop messaging app";
  +    longDescription = ''
  +      Desktop client for the Telegram messenger, based on the Telegram API and
  +      the MTProto secure protocol.
  +    '';
       license = licenses.gpl3;
       platforms = platforms.linux;
       homepage = https://desktop.telegram.org/;
  
positive.code: with lib;
  
  mkDerivation rec {
    name = "telegram-desktop-${version}";
    version = "1.8.0";
  
    # Telegram-Desktop with submodules
    src = fetchFromGitHub {
      owner = "telegramdesktop";
      repo = "tdesktop";
      rev = "v${version}";
      sha256 = "09r62dra6gab8hiyzyysslgqkzswf8vwfkcixbcb0jk5la0m07yy";
      fetchSubmodules = true;
    };
  
  
negative.code:     sha256 = "1s5xvcp9dk0jfywssk8xfcsh7bk5xxif8xqnba0413lfx5rgvs5v";
    };
  
    # Note: It would be best if someone could get as many patches upstream as
    # possible (we currently depend a lot on custom patches...).
    patches = [
      "${archPatches}/tdesktop.patch"
      "${archPatches}/no-gtk2.patch"
  