Next.js App Router Patterns Comprehensive patterns for Next.js 14+ App Router architecture, Server Components, and modern full-stack React development. When to Use This Skill - Building new Next.js applications with App Router - Migrating from Pages Router to App Router - Implementing Server Components and streaming - Setting up parallel and intercepting routes - Optimizing data fetching and caching - Building full-stack features with Server Actions Core Concepts 1. Rendering Modes | Mode | Where | When to Use | | --------------------- | ------------ | ----------------------------------------…