a and d to move drag on nodes to pull them I recommend turbo warp 60fps mode https://turbowarp.org/693352652?stuck&hqpen&limitless&offscreen&clones=Infinity&fps=60
This reuses the bridge simulation to make a vehicle simulation system similar to the game dream car racing were you build and drive cars.(sadly the game ran on adobe flash player and is now unplayable) this is not a game but a test/prof of concept