thinking again about writing v2 rules in more languages than just python, specifically after reading this: https://kripken.github.io/blog/wasm/2019/07/16/asyncify.html. if we pack in one of the 12 wasm runtimes we can support anything that compiles to wasm -- theoretically, in a way that even supports a synchronous coroutine-like API like we already have with python (as in this article). i would also really love to have a jvm runtime if we wanted to do that, in which case i was already looking at graal since it already has this interface for making "polyglot" calls across languages and we could potentially allow that to subsume the delicate

cffi

dance we have now.