chameleon

I don’t think it really makes a lot of sense to look for FOSS alternatives based on country of maintainer origin when it’s something popular enough to be shipped by a lot of independent Linux distros and supported by local IT consultants in more or less any country. That said, to my knowledge, lighttpd is mostly German in origin and is actively maintained. It definitively lost to nginx in the great popularity contest but I don’t think it’s really any worse.

Github: https://github.com/suitenumerique/docs

Self-hostable, but it seems like an absolute behemoth of an application if their “non-production-use-only” docker-compose file is to be believed, and I couldn’t find any production-ready deployment instructions on a quick skim. No obvious signs of federation and I didn’t see anything on their roadmap, not sure it would make a lot of sense for this though.