MadG0blin359/API-Lab ? reverse-engineered prompt

Build me a simple API lab project with a few separate example backends, like a blog API, a student API, and task APIs using different databases.

I want it to be easy to run locally, with a clean Express based structure, basic CRUD endpoints, and clear README instructions so I can test each API quickly. Keep the code organized and beginner friendly, with sensible validation, error handling, and a few sample routes and models for each app. If it helps, set it up so the different API examples feel consistent, even if one uses MongoDB and others use PostgreSQL or SQLite.

Make it something I can open in the editor and start using right away, and if you need to check current setup details online, go ahead and do that.