How to Scaffold a Next.js 16 App with gstack

# How to Scaffold a Next.js 16 App with gstack gstack is an interactive CLI that turns one command into a Next.js application whose parts already fit together. You choose the stack — Prisma or Drizzle, NextAuth.js or Better Auth, Biome or ESLint — and it installs real, checked-in template files rather than generating code from strings. This guide walks through the whole flow from install to a running app. ## What you get A gstack project ships with Next.js 16, React 19, TypeScript in strict mode, tRPC, Prisma or Drizzle, Tailwind CSS v4, shadcn/ui, Zod, a nonce-based production CSP, Vitest and Testing Library. Optional add-ons include Playwright, Sentry and a size-limit bundle budget. ## Step 1: Run the create command Open a terminal and run: npm create gstack@latest my-app pnpm, yarn and bun are also supported. The CLI asks for the stack you want, installs dependencies, initialises Git and leaves you with an app that builds, typechecks and passes its tests before you have written a line. ## Step 2: Answer the prompts gstack will ask you to pick an ORM, an auth provider, a linter and a package manager. The default is the recommended stack: NextAuth.js, Prisma, Tailwind, tRPC, shadcn/ui, Biome, PostgreSQL and the App Router. Every one of those is a prompt you can answer differently. ## Step 3: Verify the generated app Change into the project directory and run: npm run check npm test These should pass on the app gstack just generated. If they do not, the issue is in the scaffold, not in anything you wrote. ## Step 4: Start the dev server npm run dev The app runs at http://localhost:3000 with the starter UI, the auth routes and the tRPC API already wired. ## Headless mode for CI For scripts and Dockerfiles, add --CI and feature flags: npm create gstack@latest my-app -- --CI --trpc --tailwind --nextAuth --prisma --shadcn --biome --pm pnpm This scaffolds with no prompts. ## What gstack does not do gstack is a scaffolder, not a framework. It runs once, writes files and leaves. The generated app depends on Next.js and whatever you selected, never on create-gstack, so there is nothing to upgrade and nothing to remove later.