vercel/micro ? reverse-engineered prompt

Build me a tiny Node.js HTTP microservice helper library called Micro.

I want it to make it really easy to write one purpose services with async and await, where a file can export a function that gets the request and response, or even just returns a string or JSON and the library sends it back for me. It should include helpers for reading the request body as text, buffer, or JSON, plus a way to send custom status codes and errors cleanly.

Please also make it work from the command line so I can run a project with a start script, point it at an entry file, and have it listen on a port or socket. Keep it very small, fast, and focused on standard HTTP only, with no middleware style stuff. It should feel production ready, but simple enough to drop into a container and use right away.

If you need to check current Node docs or edge cases, look them up online.