Expo config
app.json{
"expo": {
"ios": {
"infoPlist": {
"NSContactsUsageDescription": "TODO: why this app reads your contacts."
}
},
"android": {
"permissions": [
"android.permission.READ_CONTACTS",
"android.permission.WRITE_CONTACTS"
]
},
"plugins": [
"expo-router",
"expo-contacts"
]
}
}
Prebuild writes these into the native projects; the config plugin is what makes the package's native code part of the build.