Theatrium turns your Apple TV into a calm, always-on home for two things: your smart home and your music.
THE DASHBOARD
Every room, scene, camera, sensor and control from Home Assistant or Apple HomeKit on one elegant screen, built for the Siri Remote. Clock, weather, now-playing, presence, and a live webcam panel - all glanceable from across the room. Choose from three looks: Estate, Bento and Glass.
THE VISUALISER
A real-time music visualiser that generates every scene live on the Apple TV, drawing on the track's tempo, album art and title and reshuffling each play - so the same song never looks the same twice.
LIGHTING SYNC
Two Home Assistant light groups shift colour with the music, in time with the BPM, so the whole room moves with what's playing.
No account needed - explore everything in Demo mode, or connect Home Assistant (a local address and access token) or Apple HomeKit. Your data stays on your network.
Requires an Apple TV 4K (2nd or 3rd generation), tvOS 26 or later.
This is an early beta. Testers who send feedback keep full access, free for life. Please flag anything that looks off, confuses you, crashes, or feels slow — and if any visualiser scene ever moves or flashes too fast, tell me straight away (it matters for photosensitivity). A photo of your TV screen is hugely helpful. Thanks for testing!
Information
Platforms
tvOS
Submitted
July 17, 2026
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