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Hard- & software stack for authentication, authorization and accounting of your private beer tap via RFID tokens. Created by the Geraffel gang, it runs reliably on very simple and cheap hardware.

Golang Code, Image Builder, and PCB for a Pi-ZeroW NeoPixel Controller

Development of a Raspberry Pi based laptop.

A ROM cartridge for the Gameboy

Prototype for a time / location GNSS accessory for a Raspberry Pi 40-pin GPIO.