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.
Checkride
Scans MCP servers and agent tools for actions that run without asking. Open source.
ENGRAM
Local app and CLI that finds duplicate files and what changed between snapshots. Open source.