WordPress is a popular open-source content management system.
Wordpress database has 12 tables and 94 columns.
Minimal modeling: https://minimalmodeling.com/
Part I: https://www.loom.com/share/5ab4a1385b7d42e4aea16af81864d312 (48 min).
Part II: https://www.loom.com/share/9b19ad6a69404eb3abf885cf7dada362 (57 min).
Part III: <to be announced>.
“240 tables and no documentation”: https://minimalmodeling.substack.com/p/240-tables-and-no-documentation
Official WordPress Database Description: https://codex.wordpress.org/Database_Description