I'm imagining a gearing system full of magnets instead of gears, and simplified hinges where instead of having 10 moving parts allowing a door to "fold away" yo

I'm imagining a gearing system full of magnets instead of gears, and simplified hinges where instead of having 10 moving parts allowing a door to "fold away" you have one or two hinge pieces and 2-4 static magnets that have their magnetic fields control the same motion. Stuff that typically use rails and levers to guide movement could be simplified with magnets.