Great overview OP, and it's nice to see a kind of "in-between" scenario tested, i.e. not a super fast web request or transformation, rather something more akin to a lightweight batch job. It may not be quite a "recommended" use case but it is always interesting (for me at least) to see how these sorts of services' capabilitied can be pushed and or (gently) abused. The memory and code size limitations do seem very restrictive right now, which is a shame though.
Seeing WASM evolve as the new sandboxed runtime target dejour is a super interesting and I love that it is bringing more variety of very powerful but traditionally backend or systems languages to the web.
Seeing WASM evolve as the new sandboxed runtime target dejour is a super interesting and I love that it is bringing more variety of very powerful but traditionally backend or systems languages to the web.