anchor.diff:  
   mkDerivation rec {
     pname = "telegram-desktop";
  -  version = "1.9.14";
  +  version = "1.9.21";
   
     # Telegram-Desktop with submodules
     src = fetchurl {
       url = "https://github.com/telegramdesktop/tdesktop/releases/download/v${version}/tdesktop-${version}-full.tar.gz";
  -    sha256 = "0jsss4b51ylf4qk58frvh2yap1s3cjf3isnlc273cc0fh5g1skc6";
  +    sha256 = "1b7z68q2sb2y203nf4p6lmz72zkpi5gyv9ypqi5h99bm2j6bbyg1";
     };
   
     postPatch = ''
  
positive.code:       "''${gappsWrapperArgs[@]}" \
        "''${qtWrapperArgs[@]}" \
        --prefix PATH : ${xdg_utils}/bin \
        --set XDG_RUNTIME_DIR "XDG-RUNTIME-DIR" \
        --unset QT_QPA_PLATFORMTHEME # From the Arch wrapper
      sed -i $out/bin/telegram-desktop \
        -e "s,'XDG-RUNTIME-DIR',\"\''${XDG_RUNTIME_DIR:-/run/user/\$(id --user)}\","
    '';
  
negative.code:   buildInputs = [
      qtbase qtimageformats gtk3 libsForQt5.libdbusmenu enchant2 lz4 xxHash
      dee ffmpeg_4 openalSoft minizip libopus alsaLib libpulseaudio range-v3
      tl-expected microsoft_gsl hunspell
      # TODO: Shouldn't be required:
      pcre xorg.libpthreadstubs xorg.libXdmcp utillinux libselinux libsepol epoxy at-spi2-core libXtst
    ];
  