AppCenter is a fast software store built on top of libappstore (https://launchpad.net/libappstore)

nanobrew is described as 'A fast package manager for macOS and Linux. Written in Zig. Uses Homebrew's bottles and formulas under the hood, plus native .deb support for Docker containers' and is a Package Manager in the os & utilities category. There are more than 50 alternatives to nanobrew for a variety of platforms, including Linux, Mac, Windows, Flatpak and Homebrew apps. The best nanobrew alternative is Chocolatey, which is both free and Open Source. Other great apps like nanobrew are Ninite, MacUpdater, Scoop and Homebrew.
AppCenter is a fast software store built on top of libappstore (https://launchpad.net/libappstore)

RPM Fusion provides software that the Fedora Project or Red Hat doesn't want to ship. That software is provided as precompiled RPMs for all current Fedora versions and current Red Hat Enterprise Linux or clones versions.

Spack is a package manager for supercomputers, Linux, and macOS. It makes installing scientific software easy. Spack isn’t tied to a particular language; you can build a software stack in Python or R, link to libraries written in C, C++, or Fortran, and easily swap compilers or...
a program developed by SweetLabs. It comes preinstalled application for customizing your PC from the first time you turn it on.

A modern, delicious implementation of the Nix package manager, focused on correctness, usability, and growth — and committed to doing right by its community.

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!
It will help you install Flatpak apps in a user-friendly way. We have recipes for some of them to install them even better.




What is Fink?
Fink is a project that wants to bring the full world of Unix Open Source software to Darwin and Mac OS X. As a result, we have two main goals. First, to modify existing Open Source software so that it will compile and run on Mac OS X. (This process is called portin.
Rudix is a package-based, user-friendly way to extend the Unix portion of Mac OS X with additional network utilities, computer languages, development libraries, text tools and everything else you missed from command line.
This project aims to bring the convenience of a declarative system approach to macOS. nix-darwin is built up around Nixpkgs, quite similar to NixOS.
Open-source software that creates platform-independent build artifacts and provides built-in deployment and management capabilities.
