Creating a Bottom Sheet route with Expo Router is quite easy nowadays. If you’d like a route to automatically open a bottom sheet without have to use a library, this snippet below will be your friend. (To close this programmatically, you can use router.back();).
There are use cases for libraries like react-native-bottom-sheet and I have used both in tandem in an app. Both are great tools to leverage the clever bottom sheet pattern that has become popular.
<Stack.Screen
name="<your-route-name>"
options={{
presentation: "formSheet",
gestureDirection: "vertical",
animation: "slide_from_bottom",
headerShown: false,
sheetGrabberVisible: true,
sheetInitialDetentIndex: 0,
sheetAllowedDetents: [0.33, 0.5, 1.0],
contentStyle: {
backgroundColor: "#fff",
flex: 1,
justifyContent: "flex-end",
},
}}
/>