Installing Vapor Toolbox using Homebrew

If the previous step shows that your Xcode and Swift versions are compatible with Vapor 3.0, you're ready to continue the installation. Use Homebrew to install Vapor Toolbox:

# Step 2b: Install Vapor Toolbox
$ brew install vapor/tap/vapor

Homebrew tap is a tool to tap into another repository. The previous one-liner install command gives Homebrew installation access to all of Vapor's macOS packages.