Push Notification Setup

Sets up push notifications across iOS and Android using Firebase Cloud Messaging and native platform services. You'll use this when building user engagement features, handling real-time alerts, or implementing deep linking from notifications. The guides cover React Native, Flutter, Swift, and Kotlin implementations with token management and refresh handling baked in. The best practices section is actually useful here, the DO/DON'T list around permission handling and avoiding notification spam reflects real production experience. Good coverage of the full notification lifecycle including background handlers and different app states, which is where most implementations break.