anchor.diff:  { mkDerivation, lib, fetchurl, callPackage
  -, pkgconfig, cmake, ninja, python3, wrapGAppsHook, wrapQtAppsHook
  +, pkgconfig, cmake, ninja, python3, wrapGAppsHook, wrapQtAppsHook, removeReferencesTo
   , qtbase, qtimageformats, gtk3, libsForQt5, enchant2, lz4, xxHash
   , dee, ffmpeg, openalSoft, minizip, libopus, alsaLib, libpulseaudio, range-v3
   , tl-expected, hunspell
  
positive.code: 
  in mkDerivation rec {
    pname = "telegram-desktop";
    version = "2.4.3";
  
    # Telegram-Desktop with submodules
    src = fetchurl {
      url = "https://github.com/telegramdesktop/tdesktop/releases/download/v${version}/tdesktop-${version}-full.tar.gz";
      sha256 = "15a8pnz4wf3464n8dvfzr9ck0vmhlx16ya1y889y3crjagm4ipjn";
    };
  
    postPatch = ''
  
negative.code: 
    postFixup = ''
      # Nuke refs to `tg_owt` which is introduced by `__FILE__` in headers.
      remove-references-to -t ${tg_owt} $out/bin/telegram-desktop
  
      # This is necessary to run Telegram in a pure environment.
      # We also use gappsWrapperArgs from wrapGAppsHook.
  