Exactly. Most CS curriculums have an OS and compiler course where you write one. Does the world need each student to write a new compiler or OS? No, but writ

Exactly. Most CS curriculums have an OS and compiler course where you write one. Does the world need each student to write a new compiler or OS? No, but writing a toy version is incredibly helpful in learning how one works when you interact with it. By looking at the article title, then the url, I instantly knew it was about going over the internals instead of advocating for more package managers.