Atreus62 PCB populated with new switches, with colorful keycaps arranged to spell OPEN SOURCE across the two halves

Fixing a Six-Year-Old Keyboard, Courtesy of Open Source

My main keyboard for the last six years has been an Atreus62 — a 62-key ergonomic split mechanical keyboard with column-linear, vertically staggered keys. It’s been bulletproof the entire time. Then, last week, it started dropping keystrokes here and there. The flakiness got worse over the next few days. Eventually the entire top row of letters went silent. This is the point where a closed-source peripheral becomes e-waste. Instead, I spent an afternoon at the bench, rebuilt the firmware from source, swapped an inexpensive microcontroller, and got my keyboard back. The only reason that was possible is that every layer of the thing is open. ...

April 22, 2026 · 8 min