popular
SaaS Starter
The small version: sign in with GitHub or Google, and a Polar webhook that checks its signature and writes the subscription to the database. Auth uses the Drizzle adapter, so sessions and users persist. The dashboard queries its own numbers. A foundation to build on, not a finished SaaS.
$49 one-time
Buy now →
Secure checkout via Polar.sh. Lifetime access. Instant download.
features
- >NextAuth v5 with the Drizzle adapter: GitHub and Google
- >Polar webhook, signature-verified, writing subscriptions to the database
- >Drizzle schema incl. the auth adapter tables, SQLite via libSQL
- >Login, register, pricing and dashboard pages that work
- >Next.js 16 App Router + Tailwind CSS v4
tech stack
Next.js 16NextAuth v5Drizzle ORMPolar.shResendTailwind CSS v4
pros & cons
Pros
- + One-time payment, own forever
- + Full source code included
- + Works with Next.js 16 + Tailwind v4
Cons
- – Requires basic React knowledge
- – No drag-and-drop builder
what’s inside
- └src/lib/auth.ts — NextAuth v5 with the Drizzle adapter
- └src/lib/db.ts — 5 tables incl. accounts, sessions, verification_tokens
- └src/app/api/webhooks/polar/route.ts — verified, writing to the database
- └src/app/api/auth/[...nextauth]/route.ts — auth handler
- └src/app/dashboard/, /login, /register, /pricing
- └src/components/StatCard.tsx, drizzle.config.ts
- └package.json, tsconfig, next.config, postcss, .env.example
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