@eversten I've heard of Snikket but I think there was a reason I didn't choose it.

My follow up project is to have it also running as an off-grid Wifi solution. Already difficult with Matrix I think, because of DNS cetrificates but AFAIK #fredombox solved it.

And then I want to provide an alternative endpoint in some Mesh network like e.g. #freifunk

Currently I have 2 Freifunk routers running but still have to learn setting up services.

But for now I just need a stable normal solution.