Show HN: Nailed – Stop biting your nails with on-device ML and your Mac's camera

Category: devtools

Tags: behavior-tracking, on-device-ml, privacy-first, mediapipe, webassembly

Score: 6.0/10 (Innovation: 7, Technical: 6, Documentation: 4, Utility: 5)

Nailed is a Mac app that uses on-device ML via MediaPipe and WebAssembly to detect nail-biting through the camera, then provides feedback to help break the habit. It's interesting because it applies privacy-preserving edge AI to a common behavioral health problem with a completely local processing approach.

Target audience: general-users

Repository: https://nailedapp.io

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