I've been rebuilding Weightlifting Club main feature: wrist wearable tracking was original goal but it was exposed as fragile at this stage (angle, occlusion, rep timing, drift, but also Apple Watch development tooling issues). So I moved bar tracking to phone video and on-device CV then added AR mode for spatial visualization. Accuracy jumped, UX got simpler, and it works for more lifters, not just Apple Watch owners.
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