I also selfhost forgejo and im really happy with it. (I moved from GitLab.) Personally I cant wait for federation (which GitLab is also working on). If it were so be implemented, then ppl could actually contribute so projects on selfhosted git servers, which I am really looking forward so.

You use Java not for the languages itself, but for the tooling and the ecosystem.

This is why I love Kotlin so much. You can use the Java ecosystem with a modern language.

Probably. I just reactivated it. It took almost a week to refresh. No idea why.