I have no idea, I'm not sure how that's decided. I seem to recall that it's based on some timestamp in the database row. If so, it may be problematic since I can only update those values after the book is already added (same issue as updating series and shelf information) and then I need to figure out how to distinguish between "new books are added that need to be removed from the home screen" and "nothing new was added so do nothing". It would be an interesting problem for sure if I can just figure out how the device decides what books to show on the home screen
