Some apps seem to have call-back URLs or a URL scheme. I do not see one for Apple Books.
I would like to put a link in DT that links to a particular, page, bookmark, or annotation, in an EPUB book I have stored in Apple Books. Does anybody know if this is remotely possible?
Here is a scheme for bear. https://bear.app/faq/X-callback-url%20Scheme%20documentation/
Here is some information for iOS. https://developer.apple.com/library/archive/featuredarticles/iPhoneURLScheme_Reference/Introduction/Introduction.html