@grifdail i forgot it can do loops! i don't remember the details well anymore, but i think it checks all the stars then connects the closest two, then the next closest, and continues until all stars are linked up, with a limit of 2 links to each star. this creates a few little subgroups so then it has to find the closest links between *those* groups, and then a few stars get 3 links. or something like that.

ps, i've posted a little shout out on my website: https://pbent.net/infinite-zodiac-in-node-painter/