: If you've never owned it, you can sign in to your Apple ID on a friend's newer Mac, "Get" the app, then go back to your old Mac to find it in your purchase history. Command Line Tool : Apple provides a separate command-line tool,

In the top-left search bar, type Apple Configurator and press enter. Locate the official app published by Apple.

: Create it yourself from the downloaded .app using Disk Utility.

: Files from unofficial sources may contain malware or unauthorized modifications.