At the moment, this is a hacky WIP sketch. Haven't touched JS in years, and have never used React.
There's this headless Pure Data engine called ZenGarden.
Someone else did some work to build it under emscripten and hook it up to the Web Audio API. There's no GUI, it just loads a patch from a .pd file, sends messages in, gets audio out.
I thought it'd be cool to throw together a quick GUI using this React Flow library.
This sketch doesn't quite do anything interesting yet. I need to spend one more night figuring out the "on edge change" and "on node change" type callbacks.