This is a collection simmilar to dotfiles, but aims to specifically install, configure, and customize applications and macos itself.
Homebrew is a fantastic package manager for macos. One may keep a Brewfile which can be used to brew bundle install.
It's easy to generate one of these yourself. Just run brew bundle dump in a directory you'd like to save the Brewfile.
Big shoutout and thank you to @cliss for covering this in an excellent post on caseyliss.com.