DEF CON 34 Open Silicon Badge
This year's DEF CON badge runs open-source RISC-V silicon you can visually verify against the published RTL with an IR microscope. Doubles as a security key.
Related builds
28.9M Parameter AI on ESP32
Tiny open-source AI model running fully offline on a few-dollar ESP32-S3 chip at ~9.5 tokens/s. No cloud needed.
SeedTapper – Air-gapped Seed Engraver
Open-source air-gapped machine (Pi 5 + fiber laser) that engraves Bitcoin seed plates in titanium.
NoireBox
Flight recorder for AI agents. Hash-chained, signed, timestamped, verifiable offline. MIT.
PC-AXE
Hand-designed PCB, no AI. First-party hardware files on GitHub.