http://sr7wtu3yb6cv5zz4gshbjnc5cfofv5ulj6jkxgzej4zhupcsriahp6id.onion
Your build is for Mac and Windows too, is it free of 'non-free/ proprietary' binary blobs/ software? And about GNU endorsing your build, maybe they won't undertake this officially, but they could perhaps audit your build and unofficially endorse it if your build fulfills all their libre/ free software principles?