> By ML you mean machine learning or meta language?

I meant Machine Learning

> if you are looking for a monolith then Rails is a good option.

I am really interested in learning more about the monolithic approach that Rails advocates. What would be a good codebase to study?

I am looking for some sort of large monolith that is open source. Would Gitlab or Discourse codebase, qualify as a good candidate? I tried find the RealWorld demo app on Github, but couldn't find a canonical Hotwired-Rails7 implementation.