[sidlls]

Sure, and it's great when a balance is struck. Too often, at least in my experience, the smaller chunks get shuffled out of the same file and into a nightmarish Rube Goldberg concoction in "utils" modules, packages and whatnot. I use primarily compiled C-like languages (C, C++ and Rust, specifically). I tend to put chunks of code that might be candidates for factoring out in their own scope block with a comment. Then, if the function really does become "too big" (for the very subjective measure that is), bits can be factored out on an as-needed basis.