Getting Started with τjs

NOTE
τjs is in active development. Expect breaking changes on the path to v1. Some features may be evolving or are temporarily missing.

τjs is a developer-first orchestration layer with declarative configuration for building modern web apps with per-route control over CSR, SSR, and Streaming SSR.

Scaffolding a new project

npx @taujs/create-taujs my-app

or check out a StackBlitz example project created from @taujs/create-taujs

Core Workflow

1. Define frontend apps and routes in taujs.config.ts
2. Choose rendering mode per route (SSR, Streaming SSR, or CSR)
3. Optionally attach data loaders
4. Configure security (CSP, authentication)

τjs handles routing, rendering, and orchestration.

Under the Hood

• Fastify - Runtime server
• Vite - Frontend builds and HMR in development
• React - UI framework

Development vs Production

Development:

• Vite HMR for instant feedback
• tsx watch runs server TypeScript directly

Production:

• Static assets built by Vite, served by Fastify
• Fastify runs esbuild/rollup output
• Zero runtime dependencies beyond your stack