Just wanted to comment and say what a great game this is. It kind of reminds me of those edge matching puzzle/tile games I used to play as a kid where you had to match each edge of the tile to other tiles. Maybe edge-matching could be a game mode much later down the track?
Anyway, I am really enjoying it. The artwork is so pretty too. I love its simplicity and how challenging it also is. The only complaints I have (and they aren't really complaints), is that there is no windowed mode, and no save. Its not a big deal though.
If you are open to game additions, there are train tracks so you really need train stations for an extra type of goal. "Five villages with a train station" for example. :D
Playing on MacOS Mojave 10.14.6 (on a late 2015 27" iMac) with no technical issues so far!