(Facial) motion capture solutions compatible with Rigify?

Does anyone have experience capturing their own animations?

I’d like to find a pre-made solution (or DIY but on simpler side) for facial motion capture. Body capture is welcome but not essential. I’m mostly using Rigify addon when creating chracters as it seems to be the most universal rig/skeleton that also can be used for game characters as well later on.
So the criteria for what I’m looking for would be:

  • easy to set up
  • compatible with rigify rig (via assigning trackers(?) to bones, maybe?), or at least skeleton/rig-agnostic.
  • uses bones for facial animation, not blendshapes.
  • not subscription based

Is there something like that out there?

I’ve already played around with a tracker-based approach here, and converting, stabilizing, tracking the footage, transferring movement from empties to rig controls took me 2 days for a video that’s less than a minute.