Cute and satisfying simulation, looks very polished. Perhaps a bit too easy, I hat to actively try to lose by the end of it. If the early game was more difficult and players could buy upgrades between runs I think it would stay engaging for longer.
Also initially I didn't get the tutorial and had to figure things out by trial and error, it would be better to present players with one piece of information at a time (this is a space station - it produces circles - it can take in squares - the spacetruck will pick up everything automatically and drop it off at the nearest station with the same shape etc.)