Spack is described as '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' and is a Package Manager in the development category. There are more than 10 alternatives to Spack for a variety of platforms, including Linux, Mac, Flatpak, Go (Programming Language) and Homebrew apps. The best Spack alternative is Homebrew, which is both free and Open Source. Other great apps like Spack are Flatpak, Warehouse, Nix Package Manager and GNU Guix.