geektutu/7days-golang ? reverse-engineered prompt

Build me a Go learning repo that shows how to make a few useful things from scratch in small steps, with clear working examples I can run. I want a tiny gin like web framework, a simple distributed cache, a basic ORM, an RPC framework, and a few WebAssembly demos, each in its own folder with easy to read code and example usage. Keep it educational and practical, so someone can open each part and understand how it works without a lot of setup. Make sure the examples actually run, include simple tests or demo entry points where it makes sense, and add brief README notes for each section so I know how to try it out. If you need to check current Go docs or standard library details, look them up online first.