A custom hardware/software project building an aggressively sarcastic GPS tracker for marathon training. Uses ESP32 and an e-ink display.

Rebuilt koushik.site as a minimal custom FSE block theme instead of a page builder. Five categories, one query loop, no plugin bloat. The whole point was to own…

Pulled GPS, pace, and heart rate data into one local dashboard instead of checking Garmin Connect, Strava, and a spreadsheet separately every morning. Nothing clever, just a script…

Got tired of trusting vibes on whether a retrieval change helped or hurt, so I built a small harness: 40 hand-written questions against our internal docs, context precision…

Spent the weekend porting the track-mode correction logic into RunSarcasm’s firmware. Turns out it’s a straightforward geometric fix once you know the loop radius, the hard part was…