Download Hyperborea

Free and open source — no account required. The download is a small ZIP containing the Hyperborea APK and an installer script you run from your computer.

Latest release: v1.4.1 · build 10401

- **V1 treadmill physical Start works again without bringing back the connect-time belt hazard.** Version 1.4.0 correctly stopped writing `WARM_UP` while connecting, because some controllers interpret that write as an immediate belt start, but it left the controller's explicit start request unanswered. Hyperborea now keeps the treadmill safely idle until the physical Start press, then answers `START_REQUESTED` with `WORKOUT_MODE=RUNNING`; a keypad-event fallback covers firmware that reports the Start button without asserting the request field.
- **The running-track animation now uses the true 400 m measuring line.** The curve radius is 36.80 m—the standard 36.50 m inner-curb radius plus the 30 cm lane-one measurement offset—so the 84.39 m straights and curves total 400 m and the on-screen oval has the correct proportions.

**Install:** unzip `Hyperborea-v1.4.1.zip` and run `deploy.sh` (Linux/macOS), `deploy.ps1` (Windows PowerShell), or `deploy.cmd` (Windows) with the console reachable over ADB — no root required. The bare `Hyperborea-1.4.1.apk` is for manual `adb install -r -g`.

SHA-256 (`Hyperborea-1.4.1.apk`): `fc3cbc41f1c06030f9f9ec14925d2c09146da5aa61dddd157d1f08484751f481`

New to this? Follow the setup guide →