Huh. I'm all for hackable software, but why WASM instead of something more introspective? Dare I say... Lisp?

Ok, ok. I concede the point: using WASM as a generic ABI is a neat idea.

Yup! A nice language-agnostic API + a lightweight runtime was my goal. Although I concede the point about debuggability and whatnot. I'm hoping to figure that out later down the road, but it is a tricky part.