Apps

Apps are optional. You can scaffold packages and tooling with no apps.

Each selected app is copied from a static template shipped with the CLI. Every app depends on @packages/env.

Vite

TypeScript Vite app (vite ^8). After you select Vite, the CLI asks for a framework. JavaScript variants are not offered.

Framework	Variant prompt	Plugin / extra
Vanilla	none (TypeScript)	none
Vue	none (TypeScript)	@vitejs/plugin-vue, vue-tsc
React	TypeScript, or TypeScript + React Compiler	@vitejs/plugin-react
Preact	none (TypeScript)	@preact/preset-vite
Lit	none (TypeScript)	lit
Svelte	none (TypeScript)	@sveltejs/vite-plugin-svelte, svelte-check
Solid	none (TypeScript)	vite-plugin-solid
Qwik	none (TypeScript)	@builder.io/qwik (qwikVite({ csr: true }))

React Compiler is an overlay on the React template: it adds @rolldown/plugin-babel, babel-plugin-react-compiler, @babel/core, and @types/babel__core, and wires reactCompilerPreset() in vite.config.ts.

Scripts: dev, build, preview. Vue uses vue-tsc --noEmit for check-types; Svelte uses svelte-check.

vite.config.ts calls createViteEnv(import.meta.env) so client vars with the VITE_ prefix are validated at config load.

pnpm --filter @apps/vite dev

Default port: 5173. Default folder name is still vite; the framework only changes the files inside that app.

Astro

Astro 7 + TypeScript. Scripts: dev (astro dev), build (astro build), preview, check-types (astro check).

astro.config.ts imports @packages/env/server so server env is validated when Astro starts. Client vars use the PUBLIC_ prefix (astroEnv).

pnpm --filter @apps/astro dev

Default port: 4321.

Next.js

Next.js 16 + React 19 App Router. Scripts: dev, build, start.

next.config.ts imports @packages/env/server so server env is validated when Next starts.

pnpm --filter @apps/next dev

Expo Router

Expo SDK 57 + Expo Router. Scripts: start, ios, android, web. There is no dev script, so this app does not join root pnpm dev.

app/_layout.tsx imports expoEnv from @packages/env/client.

When Tailwind is selected, NativeWind v5 is added to the Expo app. Styling comes from the shared @tooling/tailwind package (tailwindcss is not installed in the Expo app). app/_layout.tsx imports ../global.css, Metro is wrapped with withNativewind, and the home screen uses className.

pnpm --filter @apps/expo start

Electron + Vite

Electron + Vite + vanilla TypeScript. Scripts: dev (Vite), build (tsc && vite build && electron-builder), preview.

The main process reads optional VITE_DEV_SERVER_URL from serverEnv. Vite injects that URL during desktop dev.

pnpm --filter @apps/electron dev

Express

Express 5 + TypeScript. Scripts: dev (tsx watch), start (tsx), build (tsc --noEmit).

src/index.ts imports @packages/env/server so server env is validated when the process starts. Default port: 3001 (process.env.PORT overrides it). Routes: GET /, GET /health.

pnpm --filter @apps/express dev

Fastify

Fastify 5 + TypeScript. Scripts: dev (tsx watch), start (tsx), build (tsc --noEmit).

src/index.ts imports @packages/env/server so server env is validated when the process starts. Default port: 3002 (process.env.PORT overrides it). Routes: GET /, GET /health.

pnpm --filter @apps/fastify dev

TanStack Start

TanStack Start + Vite + React 19. Scripts: dev (vite dev), build (vite build), preview.

vite.config.ts imports @packages/env/server and calls createViteEnv(import.meta.env) so both server and VITE_ client vars are validated at config load.

pnpm --filter @apps/tanstack-start dev

Default port: 3003.

React Router

React Router 8 framework mode + Vite + React 19. Scripts: dev (react-router dev), build (react-router build), start (react-router-serve).

vite.config.ts imports @packages/env/server and calls createViteEnv(import.meta.env) so both server and VITE_ client vars are validated at config load.

pnpm --filter @apps/react-router dev

Default port: 5174.

Auth and database

App templates do not wrap AuthProvider or import @packages/db. After you add those packages, import them in the app yourself. See Packages.