Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The retrospective says the badge started blinking after assembly and displayed the attendee nickname plus other visual material.
Badge context
Hung Ngo organizer retrospective documenting the 2025 first-generation electronic badge, rotary-telephone inspiration, attendee chips, challenge XP, reversible chip software, interactive panels, nickname display, named badge creators, and more than 550 attendees.
Official Sched page for the April 3-4, 2025 Security BSides Prague event, Gabriel Loci venue trail, and electronic badge announcement with PCB, modular, multiple-processor, and two-system wording.
Source trail
First-hand organizer source for the first electronic badge generation, chip-based challenges, XP/reward flow, interactive panel integration, post-assembly blinking and nickname display, creator names, and attendance scale.
Primary official source for the April 3-4, 2025 Prague event context and electronic badge claims: PCB construction, modular design, multiple processors, and two integrated systems.