Astro vs. React Server Components: A Tale of Two High-Performance Architectures

This article compares Astro and React Server Components (RSC), two approaches to building high-performance websites. Astro uses Astro Components (server-side) and Client Islands (client-side), with data flowing unidirectionally. Astro Components handle preprocessing, while Client Islands manage interactivity. RSC uses Server Components and Client Components, conceptually similar but both are React components differentiated by the `'use client'` directive. RSC offers greater flexibility, allowing component sharing between server and client, but has a steeper learning curve. Astro is easier to learn but might encounter limitations in large-scale applications due to its HTML-first output and inter-component interaction constraints. The choice depends on project needs and team expertise.