I build the device. Then the firmware. Then the tools that put it in someone’s hands.
I’m a product-minded designer and embedded developer in Munich. My work crosses custom hardware, Zephyr firmware, interfaces, and the tools around them.
0x01Wafer — A 36-key wireless split keyboard built around a custom PCB, a thin aluminium enclosure, and ZMK firmware. Repository0x02Kerfur — An embedded companion with an animated face, motion sensing, BLE, and event-driven Zephyr firmware. Repository0x03Iskra — A guided ARM Cortex-M flashing workflow with signed firmware checks and an audit trail. Repository0x06Wafer Studio — A visual keymap editor for ZMK Studio keyboards. Try it · Repository0x07Split HID Display — A ZMK module that carries host status and media information across both halves of a split keyboard. Repository




