Holo turns MacBook desk surface into interactive tap zones

Repurposing ambient acoustic reflections to turn static furniture into zero-hardware input controllers is a creative approach to expanding user interaction space.

• –Uses local acoustic feature extraction and classification to detect and map desk taps to custom actions.
• –Ensures privacy by performing all audio processing entirely on-device with zero persistent audio storage.
• –Integrates directly with macOS Shortcuts, application launches, and system shell scripts for flexible automation.
• –Relies on surface-specific calibration to maintain tap detection accuracy across different desk materials.