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 also don’t like the fact that Signal needs your phone number and that the only way to connect to other people is by their phone number.
And that your phone number inevitably leads to being spammed