anchor.diff:  
   stdenv.mkDerivation {
     pname = "tg_owt";
  -  version = "unstable-2022-02-26";
  +  version = "unstable-2022-04-13";
   
     src = fetchFromGitHub {
       owner = "desktop-app";
       repo = "tg_owt";
  -    rev = "a264028ec71d9096e0aa629113c49c25db89d260";
  -    sha256 = "sha256-JR+M+4w0QsQLfIunZ/7W+5Knn+gX+RR3DBrpOz7q44I=";
  +    rev = "63a934db1ed212ebf8aaaa20f0010dd7b0d7b396";
  +    sha256 = "sha256-WddSsQ9KW1zYyYckzdUOvfFZArYAbyvXmABQNMtK6cM=";
       fetchSubmodules = true;
     };
   
  
positive.code: , pipewire
  , mesa
  , libglvnd
  , libepoxy
  , Cocoa
  , AppKit
  , IOKit
  
negative.code:     glib
      pipewire
      mesa
      libglvnd
    ] ++ lib.optionals stdenv.isDarwin [
      Cocoa
  