It will be open source, end to end encrypted using Signal’s double ratchet encryption protocol, and he plans to make it easy for fediverse platforms to integrate it. The beta will release later this month.
He’s also the creator of https://fedidb.org btw
I wonder if he is friends with the guy who runs calibre and kitty terminal. I read somewhere that he was seriously planning to single-handedly maintain python 2 after it was EOLed because it was so integral to calibre. But was eventually talked into transitioning to python 3. The idea of that is totally nuts; the guy is a machine.