A laptop, a mirror, a webcam

Linux developer Justin Schroeder paired an older Intel MacBook with a mirror and its own camera. The goal was to let an AI coding agent check graphics changes without a human watching.

“The laptop watches its own screen via a mirrored image”

Radeon support for Omarchy

The demo came from work on Omarchy, an open-source Linux distribution being adapted for AMD Radeon graphics. Driver changes there can alter what actually shows up on the display.

The camera becomes its eyes

The webcam points at a mirror facing the screen, so the agent sees a reflection of its own output. That creates a physical feedback loop between the software and the hardware it is changing.

Seeing what logs can't show

Text output alone misses visible failures. With the camera, the agent can spot distorted images, flickering, wrong resolutions and other signs the graphics code is misbehaving.

A clean build can still break

Normally a programmer edits the code, compiles, restarts services and checks the result by eye. A driver can compile fine and still produce artifacts or unstable rendering.

“successful compilation does not necessarily mean the resulting graphics output will appear correctly”

Testing without a human watching

The agent changes the code, rebuilds, looks at the screen and decides what to fix next. It can repeat that loop without a programmer checking every step in between.

Not a self-written driver, yet

The demo doesn't show how reliably this scales, or that the agent built a production-ready driver by itself. Plenty of driver behavior can't be judged by looking at one screen.