moasq/production-saas-starter: Production-ready B2B SaaS Starter Kit (Go + Next.js). Modular Monolith. Hexagonal Arch.

The Enterprise-Grade SaaS boilerplate for serious founders. Built with Next.js 16 and Go 1.25.

• Next.js 16 (v16.0.10)
  Modern React framework with App Router and API routes.
• React 19 (v19.2.3)
  Latest React with improved performance and concurrent features.
• TypeScript (v5.7.3)
  Type-safe JavaScript for enhanced developer experience.
• Tailwind CSS (v3.4.17)
  Utility-first CSS framework for rapid UI development.
• shadcn/ui + Radix UI
  Accessible component library with 29+ pre-built components.
• TanStack Query (v5.90.5)
  Powerful data fetching and state management.
• Zustand (v5.0.8)
  Lightweight state management for UI state.
• react-hook-form + Zod
  Type-safe forms with schema validation.
• Stytch
  Enterprise authentication with magic links, OAuth, and SSO.
• Polar.sh
  Billing integration and subscription management.
• Recharts
  Composable charting library for data visualization.

• Go 1.25
  High-performance, concurrent backend with excellent tooling.
• Gin
  Fast HTTP web framework with middleware support.
• PostgreSQL with pgvector
  Reliable relational database with vector similarity search.
• SQLC
  Type-safe SQL compiler for Go (no ORM).
• Stytch B2B
  Enterprise authentication, SSO, and RBAC.
• Polar.sh
  Merchant of Record for subscriptions, invoicing, and global tax compliance.
• OpenAI API
  LLM integration with RAG pipeline and vector embeddings.
• Mistral AI
  OCR service for document data extraction.
• Cloudflare R2
  Object storage for file management.
• Docker + Docker Compose
  Containerization for consistent environments.

• Authentication: Sign in with Magic Link, Google OAuth, and Enterprise SSO.
• Multi-Tenancy: Built-in Organization support with strict data isolation.
• Roles & Permissions: Granular RBAC system with 3 roles (Member, Manager, Admin) and 7 permission types.
• Billing & Subscriptions: Complete integration with Polar.sh for SaaS pricing models.
• AI & RAG: Ready-to-use vector embeddings pipeline for AI features.
• OCR Service: Extract structured data from valid documents instantly.
• Team Management: Invite members, manage roles, and update settings.
• Responsive Design: Mobile-first UI built with Tailwind CSS and shadcn/ui.
• Type Safety: End-to-end type safety from database (SQLC) to frontend (TypeScript).

• Audit Logs: Complete audit logging system for tracking user activities.
• Webhooks UI: Customer-facing webhook configuration.
• Advanced Analytics: Built-in charts and usage tracking.

Please follow these simple steps to get a local copy up and running.

• Docker & Docker Compose
• Go 1.25+
• Node.js 20+ & pnpm

Run this command to configure your keys and start the infrastructure:

chmod +x setup.sh && ./setup.sh

Manual Start:

1. Backend: cd go-b2b-starter && make dev
2. Frontend: cd next_b2b_starter && pnpm dev
3. Visit: http://localhost:3000

MIT License

Although this kit is self-service, I help ambitious founders move faster.

I can help you with:

1. Managed Config: I sets up your AWS/GCP production environment so you never touch DevOps.
2. Custom Features: Need SAML SSO or complex RAG flows? I’ll build them directly into your repo.
3. Code Audits: Migrating from Node/Python? I’ll review your architecture for scale.

m.salim@apflowhq.com • @foundmod