The crossover I never knew I wanted but am glad to see

Does anyone know of any services that offer all the backing services for add-ons for thunderbird: WebDAV for filelink, CalDAV, CardDAV, (and now) Matrix?

I provide Matrix hosting (as well as XMPP and ActivityPub Mastodon) on Communick [0].

At the moment I'm more focused on taking these services to offer custom domain hosting, and personally I've been staying away from servers and using DecSync [1] + syncthing to get my calendars and contacts on my devices [2], so I haven't thought about adding a DAV server to the mix on Communick. But if you tell me there is any actual demand, I would definitely consider it.

[0] https://communick.com

[1] https://github.com/39aldo39/DecSync

[2] https://raphael.lullis.net/thinking-heads-are-not-in-the-clo...