How to Run CPython for WASI Using WASMTIME and Extend It with Python-Implemented Host Functions?

During the National Day holiday, I worked on a project to use wasmtime to execute CPython virtual machine compiled into WASM/WASI bytecode, and extend it with Host Functions implemented in Python on the host side. I’d like to clarify again that this is just a personal project I wanted to work on, without any validation in production environments, just for fun (XDDD