Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
Interactive panels were used for CTF signup, answer submission, attendee Sched-profile display, nicknames, profile pictures, and XP points.
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.