How It Started I was using Chrome one day and noticed something that looked like a UI bug in the bookmarks side panel, a small visual inconsistency after moving a bookmark. As a developer, my first instinct was to look at the source and see if I could fix it. I found the relevant code, understood the likely cause, and thought: "This is probably a one-line fix." Then I looked at what it takes to actually build and test a Chromium change. 100+ GB of disk space. Hours of build time. Dozen...