wassimsioud/MERN-TP1 ? reverse-engineered prompt

Build me a small JavaScript starter project that runs from a Node server and is easy to open and test locally.

I want a simple backend with a few basic routes so I can check that the server is working, plus a separate JavaScript file with some practice exercises or example functions. Keep it straightforward and beginner friendly, with clear code and a clean structure. If there are any missing details, please make sensible choices and keep everything lightweight.

Please make sure it starts without extra hassle, and include anything needed so I can run it right away. If you need to look up current docs online for the best way to do the setup, go ahead.