Show HN: Open-source Next.js 15 boilerplate – auth, DB, intl, tests, monitoring

I started this boilerplate in July 2020 and I’ve been maintaining it for 5 years. It began on Next.js 9 and kept upgrading to Next.js 15+ (App Router), while upgrading the stack over time (Tailwind 1 → 4, ESLint 8, swapping Cypress → Playwright, etc.). The goal is simple: I kept rebuilding the same setup, so I packaged it and kept it updated.

What you get (preconfigured, keep only what you need):

- Next.js 15 (App Router) + TypeScript + Tailwind 4

- Auth with Clerk (magic links, MFA, social, passkeys)

- I18n via next-intl

- DB with Drizzle ORM (PGlite locally)

- Forms with React Hook Form + Zod validation

- Testing: Vitest (unit), Playwright (integration/E2E)

- CI with GitHub Actions; Storybook for UI work

- SEO (Open Graph, JSON-LD, sitemap, robots)

- Observability: Sentry, logging with LogTape, log management & uptime/monitoring

- Security: Arcjet (bot detection, rate limiting, shield rules)

- DX details: ESLint/Prettier, Lefthook + lint-staged, Commitlint, absolute imports, bundle analyzer

- AI code review

It’s free and open source (MIT). Today the project sits around 11.8k GitHub stars and 2.2k forks. I’m still actively maintaining it and adding features.

Repo: https://github.com/ixartz/Next-js-Boilerplate

Why I built it

Spinning up auth, a DB, i18n, tests, and lint/format/CI for each new app was repetitive. This gives me (and hopefully you) a production-ready base in minutes, with opinionated defaults you can start.

I’m open to suggestions and feedback, what would you like to see next? I’ll hang around in the comments to answer questions.