For this chapter, you'll need to download Xcode version 11.3 or above from the Apple Mac App Store. You'll also need to be running the latest version of macOS (Catalina or above).
Simply search for Xcode in the App Store, and then select and download the latest version.
Launch Xcode, and then follow any additional installation instructions that your system may prompt you for. Once Xcode has fully launched, you're ready to go.