anchor.diff:    #   - upstream: https://github.com/grishka/libtgvoip
     # Both of these packages are included in this PR (kotatogram-desktop):
     # https://github.com/NixOS/nixpkgs/pull/75210
  +  # TODO: Package mapbox-variant
   
     postFixup = ''
       # This is necessary to run Telegram in a pure environment.
  
positive.code: { mkDerivation, lib, fetchurl, fetchsvn
  , pkgconfig, cmake, ninja, python3, wrapGAppsHook, wrapQtAppsHook
  , qtbase, qtimageformats, gtk3, libappindicator-gtk3, enchant2, lz4, xxHash
  , dee, ffmpeg_4, openalSoft, minizip, libopus, alsaLib, libpulseaudio, range-v3
  # TODO: Shouldn't be required:
  , pcre, xorg, utillinux, libselinux, libsepol, epoxy, at-spi2-core, libXtst
  , xdg_utils
  
negative.code:     "-DDESKTOP_APP_USE_GLIBC_WRAPS=OFF"
      "-DDESKTOP_APP_USE_PACKAGED=ON"
      "-DDESKTOP_APP_USE_PACKAGED_RLOTTIE=OFF"
      "-DDESKTOP_APP_USE_PACKAGED_VARIANT=OFF"
      "-DDESKTOP_APP_DISABLE_CRASH_REPORTS=ON"
      "-DTDESKTOP_DISABLE_REGISTER_CUSTOM_SCHEME=ON"
      "-DTDESKTOP_DISABLE_DESKTOP_FILE_GENERATION=ON"
  