Much less underhanded than using an IO library's capability to do so. Also, rayon will make encoding multiple jpegs in parallel *much* easier.
tbh if i do that I may also switch to napi-rs, it seems a bit less painful and supports much more async shenigans.
(Also, it will actually bind classes properly... something Neon really sucks at unless you look at strange documentation.)
doesn't really need to be two seperate libraries. also preperation for other funnies
the build script has been replaced with a much saner justfile which uses much saner "yarn workspace" invocations instead of blindly cding all over the place