MariaDB/server
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
Health Breakdown
Should you contribute to MariaDB/server?
MariaDB/server has a FoundDev health score of 90/100, which puts it in the active-and-maintained tier. The maintainer team is shipping recently, issues are being closed, and a PR you open this week has a realistic chance of being reviewed.
Last push was 3 days ago — that signals an actively maintained project. New issues are likely to get a maintainer response within days. The project is written primarily in C++, so prior C++ experience will shorten ramp-up.
Licensed under GPL-2.0, a standard OSI-approved license — safe to contribute to under normal employer IP policies.