Okay so there is something called TrackIR and it has an open source implementation called OpenTrack. It’s used for simulators like flight or driving sims.

I’ve seen iPhone apps that use a neural net to determine the direction your head is facing using the camera. I think it networks with OpenTrack somehow, but I’m not sure about the details.

I wonder if you could use the AirPods to track your head and also direct audio from the PC through them with some networking!

I don’t know how to do Apple development but this world be a very cool application.