It’s an open source venture backed by $35M from FirstMark Capital, Spark Capital, and GV (Google Ventures). It’s a drop-in replacement for MySQL with an extension architecture. See their native UUID extension with efficient 16-byte storage as an example.
I wouldn’t be surprised to see multiple MySQL forks emerge in 2026, now that more people are realizing how bad Oracle has been as an open source project steward for MySQL.