I recently tried https://talonvoice.com/ https://talonvoice.com/ with an old Tobii Eye Tracker 4C. Worked decently well. The main issue was that the gaze itself

I recently tried https://talonvoice.com/ https://talonvoice.com/ with an old Tobii Eye Tracker 4C. Worked decently well. The main issue was that the gaze itself is not very predictable/stable.