I’m now doing it a second time, using the levels health app [0]. If you can make it to the front of their massive waiting list (and don’t mind paying their fee), it’s the easiest way to get one.
Levels is around $400, but all you have to do is fill out a form online & wait. They get a doctor to evaluate your profile & write an Rx, and then they fill the prescription & send it to you with patches & everything. Their app also does more data analysis than the default Libre app, and it puts the food-log directly on the glucose graph, which is surprisingly useful.