Server-First React Framework

RedwoodSDK is a server-first React framework designed for the Cloudflare platform, combining React Server Components, type-safe routing, type-safe SQL queries, and edge deployment into a unified development experience that prioritizes simplicity for both human developers and AI coding assistants. The framework is scaffolded through a Vite-powered project setup that includes full RSC support, file-based and function-based routing, middleware chains with type propagation, and seamless Cloudflare Workers integration. The routing system uses composable TypeScript functions rather than convention-based or code-generation approaches, meaning AI assistants can read exactly what executes without navigating implicit framework rules. React Server Components enable a unified loop where client-side buttons trigger server functions directly through RPC semantics, eliminating the need for separate API endpoint definitions while maintaining type safety across the network boundary. Streamed components deliver page content progressively, rendering layout shells instantly while data-heavy sections load asynchronously, with Suspense boundaries providing structured fallbacks instead of blank loading states. The realtime system introduces a useSyncedState hook that functions as a drop-in replacement for useState but automatically persists state on the server and synchronizes changes across all connected clients bidirectionally, without requiring manual WebSocket handler code. View Transitions API integration provides smooth page morphing and optimistic updates that mask network latency. The framework philosophy centers on using standard web platform APIs wherever possible rather than inventing custom abstractions, keeping the learning curve minimal and maximizing AI assistant accuracy. Created by Tom Preston-Ehren and the Redwood team, the project reached version 1.0 and is open source on GitHub with 1,700 stars.