our use case was simply that we have different restapi and etls accessing the same db. or different db for different stages - accessed by lambdas from different environments. therefore we found quite messy dealing with lots of env.whatever-stage files. duplicated in multiple repos. Secretmanager solved our issues
the lambda being hacked and credentials being stolen might be paranoid, dunno. i read it / saw it in the video and struck me, therefore i mentioned it as well. :-)
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