Until now App.tsx mounted one BookNest screen at a time. A real app moves between screens: a tap opens a book, Back returns to the list where you left it, a tab bar switches to the cart, and a link opens book 3. This section covers the two libraries that do this in React Native 36,878 . Expo Router 6,418 (57.0.23 in this project, the version Expo SDK 57 6,418 pins) maps files to screens and URLs. React Navigation 407,918 (7.4.1) is the library Expo Router grew out of, and you use it directly in apps that don't use Expo Router. At the end, BookNest runs on Expo Router with a tab bar, a stack for book details, a modal for reading notes, and a checkout screen that only signed-in users can reach.
MENU
Navigation
Navigation with Expo Router and React Navigation