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The Ingredients of a Productive Monorepo

So! Suppose you’re an intrepid engineer in a nascent Developer Productivity team. Your engineering organization has decided that it wants to move towards a monorepo.

You’ve heard the stories told of Google, Meta, Uber - each a large technology company with developer productivity organizations consisting of hundreds of engineers - and you want to capture some of their magic in a bottle and give it to your users. The newer source control system Jujutsu is very promising in that it has the extension points in place to admit an open-source implementation of a virtual filesystem; I hope that this comes to life one day. A common CI job in a monorepo is to validate service contracts and make sure that they are not broken unless the author deliberately intended to do so, and they are required to provide a justification as to why such a change is OK.

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