If you're looking for a Redis-compatible key-value store, kvrocks[1][2] is an excellent choice. We've used it in many projects, and it's proven to be very stable. Since it's based on RocksDB, it doesn't have the memory limitations of Redis and the license delirium ;-)
I recall Gitorious, which isn't mentioned in this article. It was acquired by GitLab, which subsequently discontinued it in 2015. The standout feature has always been the social aspect and the ability to attract a large user base to a git forge. If platforms like Codeberg or similar forges enhance their social integration and capabilities, they could eventually become strong competitors to GitHub.
I do and break stuff. Same user-name on Twitter.