>>274531339
They'd want it to work for Quest also, so I could picture them doing some $250 solution which is a camera on a tripod with integrated wireless and cpu on it so it can process the video feed it sees (and using the Touch controllers' IR rings to determine who in the scene needs tracking), and send it over to the headset.

Long as you fake arm IK locally before correcting it with information from the camera, you're fine for a slight bit of processing latency.