anchor.diff:      glib
       pipewire
       mesa
  -    libepoxy
       libglvnd
     ] ++ lib.optionals stdenv.isDarwin [
       Cocoa
  
positive.code: , pipewire
  , mesa
  , libglvnd
  , libepoxy
  , Cocoa
  , AppKit
  , IOKit
  
negative.code: 
  stdenv.mkDerivation {
    pname = "tg_owt";
    version = "unstable-2022-04-13";
  
    src = fetchFromGitHub {
      owner = "desktop-app";
      repo = "tg_owt";
      rev = "63a934db1ed212ebf8aaaa20f0010dd7b0d7b396";
      sha256 = "sha256-WddSsQ9KW1zYyYckzdUOvfFZArYAbyvXmABQNMtK6cM=";
      fetchSubmodules = true;
    };
  
  