https://github.com/bibanon/tubeup

The description here says "This script strongly recommends Linux or some sort of POSIX system (such as macOS), preferably from a rented VPS and not your personal machine or phone."

Why should I waste my money getting a VPS? I want to download entire channels directly to my personal machine because that's where I save all my stuff to.

Am I making some kind of newbie mistake?