Need help to burn dmg to usb for making Mac bootable USB drive

Once you get the Mac to burn dmg to usb, you might find yourself racing against the clock. You've got to download the macOS installer, which can take a while, especially if your internet connection is slow or if the App Store is busy. I've had situations where I had only a few hours and spent way too much of that time just waiting for downloads. Whenever you're using Terminal and dealing with commands like createinstallmedia, there's always a risk of screwing something up, especially if you accidentally select the wrong drive.