Recently coming from a Python/Flask codebase to a Java/Spring codebase, I would say that the amount of "magic" is not all that different. It's just that with S

Recently coming from a Python/Flask codebase to a Java/Spring codebase, I would say that the amount of "magic" is not all that different. It's just that with Spring, I can go to an extremely well-written user manual, or to StackOverflow and get my questions answered. With the Python/Flask codebase, I had to splunk my way through all the layers of random libraries the original developers slapped together, in an attempt to reproduce something resembling out-of-the-box Spring. I suspect that those original developers had fun making all of those custom choices back in the beginning. I don't know for sure though, since of course they've all left the company since then. The company chose to migrate because it wasn't maintainable once that tribal knowledge left.