It's pretty good, my 16 y.o. son will be stuck in it for many hours. I like that you can select a train and see its stops. It would be equally awesome to select a station and see the train arrivals/departures board.
I agree. It's a sarcasm of the new reality. What is copying vs writing from scratch? The line is blurred now, non-existent. You can ask an LLM to re-write any open source to a degree where there is no definite way to say that it's a derivative.