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# Next.js Template
Production-ready Next.js 16 (App Router, Turbopack) starter on Bun, with
shadcn/ui Base UI components, TypeScript strict, and a zero-warning
lint/typecheck/test/build pipeline.
## Stack
- **Framework:** Next.js 16.3 (App Router, Turbopack, standalone output)
- **Runtime:** Bun 1.3.14
- **UI:** shadcn/ui Base-Nova (Base UI) + Tailwind CSS v4, lucide-react, motion
- **Data:** @tanstack/react-query, @tanstack/react-table
- **Forms:** react-hook-form + zod (v4) + @hookform/resolvers
- **Auth:** better-auth (memory adapter, swap to Drizzle/Postgres when ready)
- **API client:** openapi-fetch + openapi-typescript, ky
- **Markdown:** react-markdown + remark-gfm + shiki (server-side highlighting)
- **Misc:** zustand, nuqs, sonner, cmdk, vaul, embla-carousel-react, date-fns,
next-themes, recharts
- **Motion effects:** 48 Aceternity UI effects vendored as source in
`components/ui/` (motion + @tabler/icons-react + @tsparticles + simplex-noise),
showcased live at `/ui`
## UI gallery (`/ui`)
48 Aceternity effects (3d-pin, bento-grid, sparkles, tracing-beam, …) vendored
verbatim from the [Aceternity registry](https://ui.aceternity.com/components)
and demoed live in `components/showcase/gallery.tsx`. The shadcn Base-Nova set
(accordions, dialogs, tables, …) ships alongside in the same `components/ui/`
dir — 110 files total.
| Rule | Detail |
| ------------- | ----------------------------------------------------------------------- |
| Source | Registry JSON, verbatim + `motion/react` / `cn` import fixes |
| Rename | Aceternity tabs → `animated-tabs.tsx` (collides with shadcn `tabs.tsx`) |
| Skipped | three.js trio, apple-cards-carousel (heavy deps, out of scope) |
| Overlay demos | `MultiStepLoader` demo is state-gated — never hardcode `loading` |
## Getting started
```bash
bun install
cp .env.example .env # optional: set BETTER_AUTH_SECRET / BETTER_AUTH_URL
bun run dev # http://localhost:3000
```
Requires Node ≥ 18 (Bun runtime) — see `packageManager` in package.json.
## Scripts
| Script | Description |
| --------------------------------- | ------------------------------------------------------------------- |
| `bun run dev` | Start dev server (Turbopack, NODE_ENV pinned to development) |
| `bun run build` | Production build (standalone output for Docker) |
| `bun run start` | Serve the production build |
| `bun run lint` | ESLint (next core-web-vitals + typescript) |
| `bun run lint:fix` | ESLint with autofix |
| `bun run typecheck` | `tsc --noEmit` (strict + noUnusedLocals/Parameters) |
| `bun run test` | Vitest unit tests (jsdom + jest-dom) |
| `bun run test:watch` | Vitest watch mode |
| `bun run test:coverage` | Vitest with v8 coverage report |
| `bun run test:e2e` | Playwright E2E (Chromium, dedicated :3100) |
| `bun run format` / `format:check` | Prettier write / check (Tailwind v4 plugin) |
| `bun run api:generate` | Regenerate `types/api.ts` from `/api/openapi` (dev server must run) |
| `bun run prepare` | Install husky hooks |
Git hooks (husky + lint-staged) run ESLint + Prettier on staged files.
## Project structure
```
app/
page.tsx # landing page (HomeHero: Cover + Sparkles + Spotlight)
ui/ # /ui gallery — 48 Aceternity effects, live demos
demo/ # wiring example: markdown+shiki, form, table, session
protected/ # route guarded by middleware (better-auth session)
error.tsx / loading.tsx / not-found.tsx
api/
health/ # GET health JSON
openapi/ # OpenAPI 3.1 spec for codegen
auth/[...all]/ # better-auth handler
items/ # GET list / POST create (zod-validated)
components/
providers.tsx # QueryClient + Theme + Nuqs + Tooltip + Sonner
ui/ # shadcn Base-Nova components (CLI-managed)
demo/ # form + table wiring examples
hooks/ # use-mobile (useSyncExternalStore)
lib/
auth.ts # better-auth server (memory adapter)
auth-client.ts # better-auth react client
api.ts # typed openapi-fetch client
http.ts # ky wrapper
query-client.ts # react-query client (per-request on server)
env.ts # zod-validated env (no import-time throw)
types/api.ts # generated openapi-typescript types
middleware.ts # auth route guard
e2e/ # Playwright specs
.github/workflows/ci.yml
Dockerfile # multi-stage standalone build
```
## Auth
better-auth is wired but intentionally runs on the in-memory adapter so the
template builds without a database.
1. `bunx @better-auth/cli secret` → put the result in `BETTER_AUTH_SECRET`.
2. Set `BETTER_AUTH_URL` (+ `NEXT_PUBLIC_BETTER_AUTH_URL` for the client).
3. To persist users, swap `memoryAdapter({})` in `lib/auth.ts` for a real
adapter (e.g. `drizzleAdapter(db, { provider: "pg" })`) and add the DB URL.
Routes under `/protected` require a session (see `middleware.ts`).
## OpenAPI + typed client
`app/api/openapi` serves an OpenAPI 3.1 document. Regenerate the typed client:
```bash
bun run dev & # server must be up
bun run api:generate # writes types/api.ts
```
Then use `lib/api.ts` (`createClient<paths>` from openapi-fetch).
## Docker
```bash
docker build -t nextjs-template .
docker run -p 3000:3000 nextjs-template
```
Multi-stage standalone image (~50MB runtime); runs as non-root user; requires
NODE_ENV=production and the env vars above at runtime.
## License
Private template.