INSTALLATION

Choose the DMG for your Mac package.

System requirement: macOS 12 or later; separate Apple silicon and Intel builds are available.

  1. Open the latest GitHub Release and download the macOS DMG matching Apple silicon (arm64) or Intel (x64).
  2. Open the DMG and move Lumi to Applications.
  3. Launch Lumi and review the macOS camera permission prompt. Monitoring remains off when camera permission is unavailable.
  4. Use the menu-bar icon to configure Lumi, reminder switches, and the monitoring schedule.
Preview-build notice: Current direct-download builds are not yet signed or notarized. macOS may block the first launch; only continue if you downloaded the release from the official GitHub repository and understand this limitation.

What stays on your computer

Camera frames are processed in memory with MediaPipe and discarded. The app stores a 30-day local timeline of small behavior events in IndexedDB. It does not upload photos or video, capture your screen, or require an account.

Reminders you can enable

  • A prolonged gap between detected complete blinks.
  • A 20-second distance break after 20 minutes of observed screen time.
  • A configurable sedentary interval between 1 and 600 minutes.
Not a medical device

Lumi supports screen habits. It does not diagnose digital eye strain or dry eye disease and does not replace professional eye care.