Detailed walkthrough of installing, validating, and organizing custom typefaces on Apple macOS.
Step-by-Step macOS Font Installation
1. Double-click the downloaded `.zip` file in Finder to decompress it.
2. Double-click the `.otf` or `.ttf` font file to open Font Book's preview window.
3. Click the **Install** button.
4. To install for all users on the Mac, change Font Book Preferences > Default Install Location to **Computer**.