MySQL is named after the founder’s daughter—My ( pronounced me by the way ). He sold it to Oracle and then, because it was Open Source, he forked it to create MariaDB. The name of his other daughter is Maria.

Many open source projects have startups behind them putting in all the work, usually with the hope of monetizing it. Which is a really hard problem - the choices are support and services (the software is FOSS but you sell support and implementation/review services to enterprises - what Red Hat used to do), or open core (only the core software is FOSS, and there are proprietary Enterprise versions with more Enterprise features). Neither are obvious and many open source startups fail.