Too Long; Didn't Read
Habitat lets you build your packages, <a href="https://bldr.habitat.sh/#/explore" target="_blank">but also supplies thousands of its own</a>, offering a form of independent package repository that you can roll out to any production environment. The core concept of Habitat is a <a href="http://plan.sh/" target="_blank"><em>plan.sh</em></a> file that contains details needed for Habitat to build a package, and there are <a href="https://www.habitat.sh/docs/reference" target="_blank">a large number of variables</a> you can add to one. Fortunately there a suite of tools to help take the drudgery out of defining a plan file, including <a href="https://www.habitat.sh/tutorials/download/" target="_blank">a CLI tool</a> for Linux, macOS, and Windows.