Homebrew

An important dependency before Homebrew can run is the Command Line Tools for Xcode. These include compilers that will allow you to build things from source, if you are missing this it’s available through the App Store > Updates.

One thing we need to do is tell the system to use programs installed by Hombrew (in /usr/local/bin) rather than the OS default if it exists. We do this by adding /usr/local/bin to your environment variable (if you’re using oh my zsh you should use .zshrc instead of .bash_profile):

To be able to use brew you need to start a new terminal session. Do this by opening a new terminal tab with Cmd+T (you should also close the old one), then run the following command to make sure everything is working: