A Real IntelliJ IDEA Inside Docker: Integration Tests with X Server, Window Manager, and Live Video

Evals that boot a full IntelliJ IDEA — pixels, dialogs, indexing and all — inside a Docker container. Xvfb provides the display, fluxbox keeps the windows in place, ffmpeg records everything, and a tiny Node.js server streams the live video straight into a browser tab on your machine. Here is the whole recipe, so you can build your own.