In case you are interested I wrote a minimal OOP runtime in wasm-gc (using wasm text format) here: https://marianoguerra.org/posts/bootstrap-post-collapse-oop-...

I also wrote a forth in wasm by hand here: https://github.com/marianoguerra/ricardo-forth

And a wasm compiler that fits in a tweet: https://wasmgroundup.com/blog/wasm-compiler-in-a-tweet/

I'm also the co-author of a book that shows you how to write a compiler that targets wasm for a small languaje using js: https://wasmgroundup.com/

Here's a direct link to the wasm text format for the OOP and forth implementations:

- https://github.com/marianoguerra/mclulang/blob/main/wat/fatt...

- https://github.com/marianoguerra/ricardo-forth/blob/master/s...