Creating External macOS Monterey Boot Drive

I have run a Developer beta of the latest future macOS or the latest version of the Current macOS for years. I created the drives for this using an external USB SSD that has two partitions, one for current, one for future. It is a nice way to check future features in the macOS. If you are thinking about creating an external Monterey boot drive, then read this article explaining how to do that.

Doug