EyeTrackVR is a combination of hardware, software, and 3D printable mounts for attaching a pair of microcontroller boards, cameras, and IR LEDs to just about any existing VR headset out there.
It might be fun to throw a VR headset on and tackle some F1 2024 on ... it a few years ago and went all-in for a little while on iRacing, as it has the most support and serious players.