@neauoire audio callbacks run in a separate thread, so if you were to share a stack it would have data races and lead to unpredictable behaviour
right now all audio devices share the audio stack, but this isn't a guarantee and can depend on the implementation, in any case, audio vectors should make sure they left the audio stack in the same state as they found it
@bd that's going to be hard to document properly. Lemme see, so do audio vector call create a new Uxn instance to evaluate it, or does it fork the main Uxn instance?