Homebrew is a tool that allow you to install some missing open-source packages in OSX. This of Homebrew as apt-get for OSX. It’s also an alternative to Port, but I think this just works better.
Assuming you’re installing Homebrew on OSX Lion, you’ll need the following:
- OSX Lion
- Xcode (Can be installed via AppStore)
- Xcode Command Line Tools (You’ll need an Apple Developers Account)