compio-rs/compio ? reverse-engineered prompt

Build me a Rust async runtime library that makes it easy to do fast file and network I O in a way that works across Windows and Linux.

I want the main experience to feel simple, where I can add one dependency, mark an async main entry point, and use friendly helpers for reading files, talking over the network, and handling basic runtime tasks. It should be built around a thread per core model and use the best available system support on each platform, so it feels modern and efficient. Please include a lower level option too, for people who want to work closer to the runtime itself instead of only the high level helpers.

It would also be great if the runtime can emit tracing data so I can inspect tasks and waker activity with a console tool while the app is running. If you need to check current docs for Rust async or platform I O details, go ahead and look them up online first.