How can I nest multiple books?

[victormihalache]

Question

I would like to have a "main" book that has some general documentation, but then have links such that a user can see a product-specific book. I could just do different books and host them on separate paths, but then making it so all books share the same theme would mean either having to symlink or just manually sync it.

This would be helpful because each product will have a different sidebar (instead of one huge gigantic one) and printing would be limited to the product in question.

Version

mdbook v0.4.49