I believe they added SingleFile as a save method back in March :)

I've just finished Wool as well! Shift is off to a good start too. I've been watching the Apple show as it comes out but it differs from the books more than I though it would (especially in the latest episode).

I definitely recommend Dennis E. Taylor's work if you haven't read any. The Bobiverse and Outland collections are both excellent.

I'm curious what radio software you use that has these requirements?