[gregoriol]

Quite a few self-hosted stuff already mentioned, I'd add:

* Youtrack for bug/project tracking (made by the awesome guys pf JetBrains)

* Matrix for chat (only some internal rooms on the private instance, the users stay on the main official Matrix)

* Koken for photo galleries

At some point I'd also like to add:

* a map tile server for openstreetmaps, to remove any external dependency on Google/Apple/any maps

* a jitsi server

* a secure file storage/file sharing solution

[n4r9]

Your own personal map tile server? That's interesting... what are you planning to achieve that you can't just get from openstreetmap.org? Will you run an instance of graphhopper or project-osm alongside?