Welcome to the Rhythm docs. This is the reference for the iOS app, the LightHub bridge, and the integrations that let Rhythm conduct every smart light in your home — Hue, Matter, Home Assistant, and more.
What is Rhythm?
Rhythm is a small app — and a small box — that quietly tunes the light in your home to your circadian rhythm. Cooler and brighter at solar noon. Warmer and dimmer toward dusk. Off-spectrum amber before bed.
It works because it talks to your existing bulbs through a single bridge, the LightHub Zero, and a single app — instead of fighting twelve vendor apps that all disagree about color.
How it works
The system has three layers:
- The app — your control surface and scene editor.
- The LightHub — local-first bridge that runs the schedule even when your phone is asleep.
- The integrations — Hue, Matter, Home Assistant, Apple Home, Google Home.
Where to start
Quickstart
Get a LightHub paired and a first scene running in under ten minutes.
The iOS app
Scenes, schedules, the circadian engine, and how they compose.
LightHub Zero
The bridge that keeps everything local and in sync.
Pair your bulbs
Hue, Home Assistant, Matter — the controllers that drive your lights.
Voice & control planes
Apple HomeKit and Google Home for Siri, Assistant, and lock-screen tiles.
Circadian lighting
Why color temperature, brightness, and timing matter for sleep.
Troubleshooting
FAQ, device resets, logs, and what to do when a bulb misbehaves.
Project status
Rhythm is in active development. The iOS app is shipping on TestFlight, the LightHub Zero is in pilot, and these docs are filling in as features land. Things that are placeholders today are marked clearly.
Found a gap? Tell us — every page here is in response to a real question we've been asked.