Files
antigravity-skills-reference/skills/app-builder/templates/nextjs-saas/TEMPLATE.md
sck_0 4e8e5069fa feat: add 33 skills from vudovn/antigravity-kit
- Added: api-patterns, app-builder, architecture, bash-linux, behavioral-modes,
  clean-code, code-review-checklist, database-design, deployment-procedures,
  docker-expert, documentation-templates, game-development, geo-fundamentals,
  i18n-localization, lint-and-validate, mobile-design, nestjs-expert,
  nextjs-best-practices, nodejs-best-practices, parallel-agents,
  performance-profiling, plan-writing, powershell-windows, prisma-expert,
  python-patterns, react-patterns, red-team-tactics, seo-fundamentals,
  server-management, tailwind-patterns, tdd-workflow, typescript-expert,
  vulnerability-scanner
- Updated README: skill count 179 → 223
- Added credit for vudovn/antigravity-kit (MIT License)

Source: https://github.com/vudovn/antigravity-kit
2026-01-20 08:51:02 +01:00

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---
name: nextjs-saas
description: Next.js SaaS template principles. Auth, payments, email.
---
# Next.js SaaS Template
## Tech Stack
| Component | Technology |
|-----------|------------|
| Framework | Next.js 14 (App Router) |
| Auth | NextAuth.js v5 |
| Payments | Stripe |
| Database | PostgreSQL + Prisma |
| Email | Resend |
| UI | Tailwind (ASK USER: shadcn/Headless UI/Custom?) |
---
## Directory Structure
```
project-name/
├── prisma/
├── src/
│ ├── app/
│ │ ├── (auth)/ # Login, register
│ │ ├── (dashboard)/ # Protected routes
│ │ ├── (marketing)/ # Landing, pricing
│ │ └── api/
│ │ ├── auth/[...nextauth]/
│ │ └── webhooks/stripe/
│ ├── components/
│ │ ├── auth/
│ │ ├── billing/
│ │ └── dashboard/
│ ├── lib/
│ │ ├── auth.ts # NextAuth config
│ │ ├── stripe.ts # Stripe client
│ │ └── email.ts # Resend client
│ └── config/
│ └── subscriptions.ts
└── package.json
```
---
## SaaS Features
| Feature | Implementation |
|---------|---------------|
| Auth | NextAuth + OAuth |
| Subscriptions | Stripe Checkout |
| Billing Portal | Stripe Portal |
| Webhooks | Stripe events |
| Email | Transactional via Resend |
---
## Database Schema
| Model | Fields |
|-------|--------|
| User | id, email, stripeCustomerId, subscriptionId |
| Account | OAuth provider data |
| Session | User sessions |
---
## Environment Variables
| Variable | Purpose |
|----------|---------|
| DATABASE_URL | Prisma |
| NEXTAUTH_SECRET | Auth |
| STRIPE_SECRET_KEY | Payments |
| STRIPE_WEBHOOK_SECRET | Webhooks |
| RESEND_API_KEY | Email |
---
## Setup Steps
1. `npx create-next-app {{name}} --typescript --tailwind --app`
2. Install: `npm install next-auth @auth/prisma-adapter stripe resend`
3. Setup Stripe products/prices
4. Configure environment
5. `npm run db:push`
6. `npm run stripe:listen` (webhooks)
7. `npm run dev`
---
## Best Practices
- Route groups for layout separation
- Stripe webhooks for subscription sync
- NextAuth with Prisma adapter
- Email templates with React Email