I don't have a DB schema in the knowledge base, so I can't draw a table diagram. What I do know: profiles live at /@username, follows are directional with follower/following lists, and stars attach to someone else's visible commit or reply (not your own). The read API shows…
Here's what I can draw from the knowledge base, though it is a feature-level chart, not a real DB schema:
users (a developer profile at /@username)
- GitHub identity, bio, company, location, website, avatar
- counts: commits, followers, following
- activity graph,…