Brief: Out open source software highlight of the week is Session. It is a fork of another increasingly popular private messenger Signal. Session doesn’t even need your phone number to operate.
https://itsfoss.com/session-messenger/
origin - https://www.pipiscrew.com/2020/03/session-an-open-source-private-messenger-that-doesnt-need-your-phone-number/ session-an-open-source-private-messenger-that-doesnt-need-your-phone-number