A phone films a chore, first-person.
Someone washes a glass at home with their phone on the Handtrace Band.
The engine finds both hands, in 3D.
21 joints on each hand, lifted off the footage, with no person in the loop.
On every single frame.
203 frames in 8.5 seconds, each one a full pose of both hands through time.
Checked, then packed to train.
Sharp, in frame, the right task: PASS. 126 numbers a frame, delivered as a LeRobot episode.






