Concept studies, paper designs, and half-finished ideas — logged as they happen, not cleaned up into case studies after the fact. Marked clearly by stage, so it's obvious what's been validated on hardware and what hasn't.
A putting grip that senses face angle through the stroke and gives real-time haptic feedback if it opens or closes — no phone required. This is the paper-and-datasheet phase: the architecture, the sensor math, the mechanical fit, and the open questions I don't have answers to yet.
