Выдержка из https://matrix.org/blog/2019/05/10/this-week-in-matrix-2019-05-10/:
FluffyChat is now also available as a Snap package for desktop Linux https://snapcraft.io/fluffychat :D
It’s a Matrix client written in Qml for Ubuntu Phones. Now it is working for Linux Desktop too.
Progress has been made at the end2end encryption for FluffyChat. Qml bindings for the libolm library are mostly ready and the app can now create keys and upload keys to the server. Device tracking is now implemented too.
E2E when? SOON! (Прогресс) See the branch here: https://gitlab.com/ChristianPauly/fluffychat/tree/e2eencryption
Осталось портировать на Android/iOS и будет кошерная альтернатива семейству Riot.