I wear an Oura ring every day, and at some point I started wondering whether it was quietly lying to me. Not maliciously, just structurally. Most wearables count steps the same way: take the accelerometer signal from a single sensor on your body, and trip a counter every time the acceleration crosses a threshold tuned to what a "typical" stride looks like. The trouble is that stride dynamics scale with body geometry. Smaller bodies produce smaller acceleration peaks. Set one universal threshold and you will, in principle, miss more steps for smaller-statured people.

Watch what happens when you take 250 frames of someone waving their arms and compress them into a single grayscale image where bright means just-now and dim means a moment ago… Continue reading on Medium

The dashboard worked. Then a real user touched it — and 846 ghost edits, a sign convention nobody warned me about, and a double-counted check later, I learned why shipping v1 is only half the job. Here's how a read-only prototype became a serverless platform with real-time sync, in-app communication, and a documentation-driven workflow.

11 accounts. 1,300 transactions. Duplicate transfers across accounts. Your accountant is waiting for these numbers. And why does everyone love to pay with Venmo??? One custom-built dashboard. Here's how I solved tax season for a small-town contractor.