FWIW, there was a lot of discussion recently on GNOME's desktop-devel-list about Telepathy and Matrix.https://mail.gnome.org/archives/desk...ead.html#00047 https://mail.gnome.org/archives/desk...ead.html#00112 Messaging is not a field I'm familiar with, but it seemed to me that people have issues with Telepathy and that Telepathy's design is not considered a success -- red flags to me regarding choosing what to build on.