[Annatar]

But you don't have limited time to re-invent the wheel over and over again by inventing new programming languages, learning new frameworks and re-implementing what already exists? How many headlines here were of the "why do it inefficiently? Because I can!" type? The limited time argument is a fallacy in this context.

[pjmlp]

A language package manager works everywhere, regadless of the OS.

Thankfully modern languages are mostly OS agnostic due to their rich runtimes and library eco-systems.

[Annatar]

A language package manager is system administrator's enemy and her or his nightmare.

Now you explain to me why and how that is the case.