I would say that the current format is a 'book' in content, but not a 'book' nor an 'e-book' in form, as you can't manipulate it as a single object. But I've seen a few other examples here on HN where people showed off a 'book' purely as a website.
As I shared in a comment above, the book is released under a Creative Commons license that does not authorize sharing derived works so only the original author can distribute you an alternative version
This may help: https://github.com/yan7109/yan7109.github.io/tree/main/ma-bo...
Though I'd rather download a PDF or ePub.
I would say that the current format is a 'book' in content, but not a 'book' nor an 'e-book' in form, as you can't manipulate it as a single object. But I've seen a few other examples here on HN where people showed off a 'book' purely as a website.
As I shared in a comment above, the book is released under a Creative Commons license that does not authorize sharing derived works so only the original author can distribute you an alternative version
However I vibe-coded this tool for my personal use with our good friend Claude: https://onetake-ai.github.io/html-ebooks/
Which when pointed at a repository containing an "html book", like https://github.com/yan7109/yan7109.github.io/tree/main/ma-bo...
will give you an ePub with all the content in one place.
It's not a single page.