Social feed mobile app with multi-provider OAuth login (Google, Apple, Kakao) and personalized feed ranking. Users authenticate via their preferred OAuth provider, complete profile setup with validation, then browse curated feeds sorted by recommendation, subscriber count, or algorithm. The flow handles authentication errors, term acceptance, and profile validation before granting access to the home feed with three distinct sorting options. Fork this diagram to customize OAuth providers, feed algorithms, or profile fields for your own social platform. The architecture demonstrates best practices for onboarding flows, conditional routing, and feed personalization in consumer mobile apps.