I found this: https://developer.apple.com/forums/thread/762784 https://developer.apple.com/forums/thread/762784 Looks like share extensions are not generally a

I found this: https://developer.apple.com/forums/thread/762784 https://developer.apple.com/forums/thread/762784 Looks like share extensions are not generally available inside the Books app, which is why my app is not showing up. Thank you for making me aware of the issue!