Ability for js to write in the work folder

Having a communication channel between WASM and JS would be incredibly useful.

I’m trying to create a package that requires comms between JS (in-game panel)
and WASM. Right now L:Vars is the only way but the bandwidth is too low to the
type of data that needs to be transferred.

If too complex, having the ability to write to the work folder via a http POST
command or something like that would be a helpful workaround.

Thank you!