How we made the Supabase Select 2026 badge

Supabase describes how it designed and produced 800 programmable badges for its Supabase Select 2026 developer conference, including the hardware choice (Pimoroni Tufty 2350 with RP2350), the firmware and software shipped, and the logistical challenges of charging, updating, and syncing all badges before the event.

The post also highlights projects attendees built with the badges after the conference, such as a live flight tracker, a food-finder app, and a tiny story-generation model running entirely on the device.