You could extend the right to repair to devices with keys. Modern cars, you cannot buy, own, or use equipment to program keys to your car. Its not a far stretch to imagine some car companies that sell car today be bankrupt 20 years from now. Your car will not be maintainable
Great work on your restoration, But I would exercise caution with a foot switch toggle on a lathe. Remember what a lathe will do to you if your in the wrong position and it turns on. Its a dangerous setup with a potential for injury. The probability of something happening is different from the fact that IT CAN HAPPEN. Maybe have a secondary safety switch somewhere else. Keep up the great work!