Full-Stack SaaS Boilerplate with RBAC

A modern, production-ready boilerplate for building scalable SaaS applications with built-in multi-tenancy and Role-Based Access Control (RBAC).

🚀 Tech Stack

Backend

• Fastify - High-performance web framework
• Prisma - Type-safe ORM and database migrations
• CASL - Isomorphic authorization library
• JWT - Authentication using JSON Web Tokens
• OpenAPI/Swagger - API documentation with Scalar UI

Frontend

• Next.js 15 - React framework with App Router
• Tailwind CSS - Utility-first CSS framework
• shadcn/ui - Re-usable components built on Radix UI

Shared

Packages

• packages/env - Runtime type validation
• packages/i18n - Internationalization for backend and frontend
• packages/auth - CASL example, so you can take a look how to implement RBAC
• packages/api-types - Automatically generate and provide API types by reading apps/api OpenAPI schema

Configs

• config/eslint-config - ESLint config
• config/prettier-config - Prettier config
• config/tsconfig - TypeScript config