flatout.dev
Guy Thomas builds things on the web.
A tree of fireflies, in step since the first day.
What this is
A tree of fireflies, and one of them is you. Everyone on the site right now is on it. Your light charges on its own, and every flash you see hurries it along. Tap the glow when your ring fills. Get the whole tree flashing together and the river lights up.
No score, nothing to post. It only remembers how often it's been in step.