anchor.diff: -{ mkDerivation, lib, fetchFromGitHub, fetchsvn
  +{ mkDerivation, lib, fetchFromGitHub, fetchsvn, fetchpatch
   , pkgconfig, pythonPackages, cmake, wrapGAppsHook, wrapQtAppsHook, gcc8
   , qtbase, qtimageformats, gtk3, libappindicator-gtk3, libnotify, xdg_utils
   , dee, ffmpeg, openalSoft, minizip, libopus, alsaLib, libpulseaudio, range-v3
  
positive.code:   archPatches = fetchsvn {
      url = "svn://svn.archlinux.org/community/telegram-desktop/trunk";
      # svn log svn://svn.archlinux.org/community/telegram-desktop/trunk
      rev = "487779";
      sha256 = "0f09hvimb66xqksb2v0zc4ryshx7y7z0rafzjd99x37rpib9f3kq";
    };
  
    patches = [
  
negative.code:     "${archPatches}/no-gtk2.patch"
      # "${archPatches}/Use-system-wide-font.patch"
      "${archPatches}/tdesktop_lottie_animation_qtdebug.patch"
    ];
  
    postPatch = ''
  