Nix is a powerful package manager for macOS, Linux and other Unix systems that makes package management reliable and reproducible. It provides atomic upgrades and rollbacks, side-by-side installation of multiple versions of a package, multi-user package management and easy setup...This app doesn't have any features at the moment.
pkgsrc is a framework for building over 17,000 open source software packages. It is the native package manager on SmartOS, NetBSD, and Minix, and is portable across 23 different operating systems. Use one package manager across all of your systems!
PortAuthority provides a GUI for the MacPorts Unix software management system for Mac OS X. MacPorts is a powerful command-line tool for installing and updating a variety of Unix-based applications for the Mac.This app doesn't have any features at the moment.
Keeping your system up to date usually involves invoking multiple package managers. This results in big, non-portable shell one-liners saved in your shell. To remedy this, topgrade detects which tools you use and runs the appropriate commands to update them.