GemeOpen

C on ESP8266 (bare metal and IDF), Python for tooling and test rigs, MQTT and TCP protocol work. Specialist in embedded firmware; generalist everywhere else.

Node-RED, because half our users ask about it and I've been bluffing for a year. Also learning to stop writing C like it's Python.

Putting a 25 A contactor in my own consumer unit — partly for the project, mostly so I can write the docs from real failures instead of guesses. Also: MQTT topic hygiene, forever.

MQTT and Home Assistant questions, protocol design reviews, hardware teardowns, and energy metering. If you're stuck on a topic that returns nothing, that's my favourite kind of bug.