Great game! I love the trains and movement of cargo. I think the meta-puzzley aspects of the logistics across the world map is a cool idea, even if the jump from constrained puzzle game to semi unconstrained logistic puzzle is a bit jarring with some "design slop", especially once you realise you're expected to toggle station pick up/drop off, which seems like it can trivialise the track layouts if you want to play that way. I really like the ending too, even if it is a bit of a waiting game. I'm also not sure if you're expected to connect all 4 colours at once and let it run. It didn't seem doable, or at least quite challenging, so I just left yellow to last.