Worth reading even if you aren't a perl guy. Every language has this type of 'cultural markers' that set your expectations for a codebase by skimming a few files or just the project structure.
On that first dive into someone else's code[1], this markers are invaluable, they are the first cue into the author's mindset and background. They are a signal for future maintainers or collaborators. It's like stepping off the plane and hearing people around you speak with your own regional accent. Even if you've never been here before, now you know some of your knowledge still applies.
[1] Rule of thumb, if you haven't touched your own code for a long time, think of it as being written by someone else. You are not the same person you were when you wrote it.
[1] Rule of thumb, if you haven't touched your own code for a long time, think of it as being written by someone else. You are not the same person you were when you wrote it.