wagi is like cgi for wasm. You write your module, using `wasi` so you get access
to stdin/stdout, environment variables, and your "program" is called on every
HTTP request, where the request data is sent on stdin, and your programs writes
the HTTP response on stdout.
- [wagi server on Github](https://github.com/deislabs/wagi)
- [Deislabs | Introducing WAGI: The Easiest Way to Build WebAssembly