I am a user and I do care. As there's no standard definition a package manager, I collected those as the basic and common features among 99.99% of the package m

I am a user and I do care. As there's no standard definition a package manager, I collected those as the basic and common features among 99.99% of the package manager in practical wide use today. And, obviously, I'm not alone in this either. Niche, maybe, but not really given a lot of development now happens on OS X. Homebrew, MacPorts, and Fink are nice, but nothing like yum or apt on Linux.