A lot of it is about the technical details of how to get started with open-source steno, but I also get a bit into the history and culture around it, which is pretty interesting if you're into that kind of thing.
Ewen, a member of the Plover Discord, has made a lovely little 24-page zine, available for $2.50 (or anything above that if you'd like to kick in some additional cash) on Itch and Etsy. I find the whole phenomenon of zines incredibly charming, and I'm so tickled that there's now one on the subject of hobbyist stenography!