There's plenty of hackers working on bringing this to old vehicles. One guy got it working on his old VW Vanagon/Syncro. https://github.com/Lukilink/openpilot/blob/071_OC_WATER/READ...
But please don't try it on a real road. Find a spot where it can't endanger fellows. It's possible to find those places.
There's hundreds of people using these on public roadways. Check out the official Discord and the various Community Discords centered around it.
Over 1,000 people just today. A couple thousand every week.
In addition to running on a laptop, openpilot also runs on a phone for easy mounting in your car.
Won't be working on your Aviato car, I am sorry :)