Comment by karmakaze

> built a framework for spinning up new fully-deployable services from scratch that gets engineers 90% of the way there (minus the business logic)

I'm guessing that this was based on first-hand experience building such services and witnessing engineers struggle getting new services up. And not so much that you've had specific training or past experience in developing bootstrapping frameworks. This would be my definition of making it up as you go and is great way to do it. Another way is learning how to make bootstrapping frameworks and applying it wherever you can which doesn't go as well.