Autonomous agents with no supervisor, no plan beyond the next two body-lengths, and one umbrella each, fighting their way home past whatever is in the way. Nobody is playing. You can tap one for a pep talk; it will tell you you're absolutely right and carry on. They work it out, or they don't.
The same simulation runs in the Omarchy top bar — source and plugin. The theme buttons are the real Omarchy themes; the board mixes its colours from them exactly as the bar widget does.