I built PostureGuard after my back pain from remote work got unbearable.
It uses your webcam + TensorFlow.js to detect bad posture in real-time and alert you (tab flashing, sounds, overlays).
Everything runs locally in your browser - no data sent anywhere.
Try it: https://posture-guard-theta.vercel.app/
Tech stack: Next.js, TensorFlow.js, MoveNet pose detection
Would love feedback from the community!