It has been a while that I tried . With the new Tracker plugin (AI haha) for we get head tracking without annoying IR LEDs or reflecting stripes just by reading the webcam video feed. This is apparently fast enough to try without a dedicated nowadays. And all that on a PC. Took some fiddling but the concept still works. What a time to be alive.

Demo: https://makertube.net/w/groS1wpAhP8XYE75vJwX32

HowTo: https://simpit.dev/systems/opentrack/