Prerequisites

1. Install Xcode from the AppStore. If you installed the Xcode command line tools earlier (e.g. by installing Homebrew), run this:

   sudo xcode-select -s /Applications/Xcode.app/Contents/Developer

2. Install Homebrew to install/compile the dependencies and Zeal itself.

Installing Zeal from Homebrew

1. Compile the latest development version of Zeal from Homebrew

   brew tap koraysels/personal
   brew install --HEAD zeal

Brew will automatically install the dependency qt@5 and libarchive for you

2. Zeal is now available to be run. If you want you can move it to your Applications folder (not necessary if you run it through Spotlight):

$ cp -Rp $(brew --repository)/Cellar/zeal/*/Zeal.app /Applications/