Other book solutions
The https://arrow-user2022.netlify.app/ site seems to have something like an ebook available in the Tutorial dropdown in their top-level bar. Each section of the dropdown is like a numbered chapter. There does not, however, seem to be a way to navigate between chapters other than the dropdown. Their GitHub repository lives here.
- On the plus side, you can search the book within the website, and vice versa.
- On the down side, the “book” isn’t really a book. It’s a numbered dropdown.