One QR on the band shifts with the night — afternoon schedule, midnight bar map, 03:00 Uber callout. If a headliner moves, every band updates in seconds.
Three time blocks, three destinations: day schedule, after-midnight cocktail menu (capped to first 100 scans for a hidden discount), and a 03:00–06:00 ride-home button. Headliner shifts go live with one click in the panel.
Free tier includes 1 permanent QR and the recovery key — upgrade the slot with the exact modules this case uses whenever you need them.