Thanks for your question, Todd. We talked about different publishing/authoring tools during our project scoping session and in a little more detail during our accessibility & inclusive design and authoring & content creation sessions.
@geripalmer has been leaning early on towards using Pressbooks as the authoring and publishing tool — this is the same platform on which the Introduction to Community Psychology book was published. I’ll follow up with you and the team over direct message to get you set up in Rebus’ instance of Pressbooks.
The team at Pressbooks is holding training webinars to help familiarize new users of the tool. You can watch this thread for updates on when the next session will be held: Pressbooks Training Sessions: Getting Started & Advanced Edu Publishing.