I usually do REPL driven development in Python via emacs but you can tell it's not the natural way to do things, esp. if you start doing stuff with async. But I still feel that it makes me way more productive than I would otherwise be
I've been thinking about it! Maybe a book that covers the basics of putting an app up on AWS... networking, covering the different options such as EC2, ECS, and fargate, plus a bit about load balancers and IAM.