Matrix version 1.0 has been released! We think Matrix is already so good that you could host it on a home server and use it to replace Whatsapp.
We even made a video tutorial!
📺 VIDEO: "FreedomBox Tutorial: Setting Up a Chat Server with Matrix and Riot"
https://peertube.mastodon.host/videos/watch/18d46a5f-ec0b-4e70-809b-24c5c34e8d65