I'm sure, but it's also "yet another package manager" because everyone has their own favourite package manager. It's a nit, but it's nice when a README.md goes "you need X, Y, and Z" and doesn't pretend you need a specific method for that. Tiny phrasing change, zero real world difference of course, but it's a nice little sign that the folks running a project know that you know what you're doing on the OS you're working with (either by choice, or by paycheque =)