Is there a story for interop with other languages? I understand the UI probably has to be defined in JS, but what about transparently making request to a local server written in another language (bonus point if it can somehow be made less observable than that, i.e. not consuming a localhost port).
The NodeJS NAPI support binary modules written in any language that can build dynamic libraries against the C FFI. There's still a little overhead marshaling between Javascript and the guest language but it's small compared to the overhead of HTTP or WASM.
