Understanding React Server Components in Next.js

React Server Components are not just another feature; they represent a fundamental shift in how we think about the client-server boundary. By moving the rendering of non-interactive components to the server, we drastically reduce the bundle size sent to the client. This results in faster First Contentful Paint (FCP) and a much better user experience on low-powered devices. In this guide, we explore the data fetching patterns, the 'use client' directive, and how to effectively mix server and client components without causing hydration errors.