TRMNL X, Part 2: Weather, Bike, Muni and Trash Duty

In the first post the server was running and the display was still in the mail. It showed up in July and did nothing. The screen sat on a static “install dock and USB-C” image, it didn’t react to power, and no TRMNL Wi-Fi network appeared. I tried the dock in different positions, a few USB-C cables, a wall adapter and a laptop port, then wrote to TRMNL support asking for a replacement. ...

October 6, 2026 · 10 min · Derek Welty

TRMNL X BYOS: Self-Hosting the Server Before the Device Arrives

Correction, October 2026. The display arrived and is running, and parts of this post are wrong or no longer used. Part 2 has what ended up on the screen. I’ve left the original below as a record of what I did before the device arrived, so don’t follow it as written. Wrong: the panel is 10.3 inches at 1872 × 1404 with 16 grays, not 7.5 inches. BYOS doesn’t need the Developer Edition (step 1 under “What’s next”). And the server I run is TRMNL’s own byos_fastapi, not the project linked under “The server”. ...

April 23, 2026 · 4 min · Derek Welty