Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
Homebrew - The missing package manager for macOS
JustControl.it - Marketing data analytics platform for data-driven decisions
MacPorts - The MacPorts Project is an open-source community initiative to design an easy-to-use system for compiling, installing, and upgrading either command-line, X11 or Aqua based open-source software on the Mac OS X operating system.
Zero Install - Zero Install is a decentralised cross-distribution software installation system.
NixOS - 25 Jun 2014 . All software components in NixOS are installed using the Nix package manager. Packages in Nix are defined using the nix language to create nix expressions.