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That's mostly a preference thing. I always keep all related code in a single repo. I find it easier to manage, and helps avoid accidental silo-ization. It also avoids problems like.. "where do I put this bit of serverless app code"? Does it go in the app repo even though it's only 6 lines long and the only place that uses it is the lambda deployment code in the infra repo?

OK, thanks! :)