> It’s simple and minimal

This. All LLM code I saw so far was lots of abstraction to the point that it’s hard to maintain.

It is testable for sure, but the complications cost is so high.

Something else that is not addressed in the article is working within enterprise env where new technologies are adopted in much slower paces compared to startups. LLMs come with strange and complicated patterns to solve these problems, which is understandable as I would imagine all training and tuning were following structured frameworks