Terence, the OSS site itself runs on MySQL, and has since 2003, when I launched the beta version of the site. The download page provides Access and CSV files because those are the most easily-consumed versions of the database. For whatever reason, I’ve actually never been asked for a mysqldump version of the site — probably because whenever someone has downloaded the db, they want to use the database in their own personal project, so they’d rather import the data into their own table structure, rather than replicating OSS’s.

I’m glad you’re finding the database useful, and I’m also glad to see it up on github.