Ask HN: What are the best operational/tactical resources for scaling startups?

Much has been written about management techniques (OKRs etc) or business strategy (lean startup, SaaStr, etc) but there is a whole body of knowledge which exists around the actual tools and processes that need to be in place, which seems under-documented. Examples: how to do incident response, how to manage and disseminate internal knowledge, how to conduct programming interviews at scale, tops for collaborating globally/remotely, etc.