Comment by tlarkworthy

Google3 codebase. It's just so vast and it works. It's a miracle. I feel lucky to have seen it. Everytime you change it, it reruns the dependencies. Everyone has different view concurrently. Commits are efficient immutable snapshots. It's just incredible multiplayer. So massively beyond what can be done with GitHub. Really I feel it's peak codebase. I've not seen what the other big techs do but it blew my mind