Calibrate letters to your hand
Camera is off.
Seeing (with your calibration):
G
Index finger points sideways, thumb parallel above it; other fingers closed.
Teach the letters to your hand. Start with Quick (the 12 letters people mix up most), or record the whole alphabet. Using the app teaches it too: tap a wrong letter in the transcript and pick the right one. Hold each letter for 2 seconds and move your hand slightly. Everything stays on this device unless you export it.
Amber = commonly confused. Number = your samples.
Share recordings with the team (for testing and the built-in seed data)
0 raw frames recorded across 0 letters. Export contains hand landmark coordinates only, no video.