Field notes, research, and practical tools from building businesses and technology. The things that worked. The things that didn’t. What we learned along the way.
A little about TruPath ↗
FROM THE FIELD / SWING TRAINERThe physics boundary inside Swing Trainer: what monocular video can support, what calibration might unlock, and what still requires an external instrument.
Read the field note ↗What a phone camera can tell us about a golf club—and where physical measurement needs more evidence.
Read paper ↗Three sign-recognition models recovered when the training recipe changed. A closer look at what model comparisons actually measure.
Read paper ↗An audit of sign recognition on unseen signers, with multiple seeds and explicit limits on what the results establish.
Read paper ↗Follow a subject across field notes, research, and tools.
18 playbooks and 71 published lessons. Templates, methods, and working references you can return to.