Tanooki Prefab: Your AI-Ready Rails Foundation

Ship Faster Build Smarter. Scale Seamlessly.

Stop rebuilding the same foundation. Start building the future.

Why start from scratch When You Can Start Ahead?

Most development projects waste 3-6 months building the same foundational features: authentication, user management, admin dashboards, email systems, and database architecture. Prefab eliminates this redundancy by providing a battle-tested Rails/React/GraphQL foundation that gets you from concept to launch in weeks, not months.

LLM-Optimized Architecture

Prefab isn't just a template—it's an AI-ready development platform. Every component is designed to work seamlessly with Large Language Models, enabling:

Predictable Code Patterns

Consistent architecture means AI can generate reliable, maintainable code

Self-Documenting Structure

Clear conventions help AI understand context and make better suggestions.



Integrated Development Flow

Auto-generating GraphQL types and seamless hot-reloading keep AI and human developers in sync



Backend Foundation

  • Rails 8.0 + PostgreSQL for robust data management
  • GraphQL API with auto-generated TypeScript types
  • Email-based authentication with OTP security
  • Sidekiq + Redis for background job processing


Frontend Excellence

  • React 18 + TypeScript for type-safe development
  • Tailwind CSS + Radix UI for beautiful, accessible interfaces
  • Vite bundling for lightning-fast development cycles


Production Ready

  • Heroku deployment configuration included
  • MJML email templates with Postmark integration
  • Comprehensive test suite with RSpec and Capybara

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What you get out of the Box

⚑ Instant Productivity


  • Multi-tenant Organizations: User roles, permissions, and organization management
  • Authentication System: Secure email-based OTP with remember-me functionality
  • Admin Dashboard: Data tables, user management, and system administration
  • Email Infrastructure: Transactional emails with professional templates

πŸ”’ Enterprise Security


  • UUID Primary Keys: Enhanced security and scalability
  • Action Policy Authorization: Role-based access control
  • Secure Session Management: Industry-standard authentication patterns
  • CSRF Protection: Built-in security best practices

πŸš€ Developer Experience


  • Hot Reloading: Instant feedback during development
  • Type Safety: End-to-end TypeScript integration
  • GraphQL Codegen: Automatically synchronized client-server types
  • Comprehensive Testing: Full test coverage with factories and fixtures

Real Impact, Real Savings

Time Savings Breakdown

Beyond Speed: Quality & Maintainability

Reduced Technical Debt: Start with proven patterns instead of quick fixes Consistent Architecture: Onboard new developers faster with familiar structure AI-Enhanced Development: Leverage modern AI tools more effectively Scalable Foundation: Built to handle growth from day one

Why Tanooki Labs + Prefab?

Over a decade of Expertise, Distilled

Tanooki Labs has built 100+ applications across industries from fintech to healthcare. Prefab represents the distillation of every lesson learned, every pattern perfected, and every best practice discovered.

Tanooki's Advantage

🎯 Sprint Zero Process: Structured discovery ensures we build the right thing
πŸ”„ Agile Development: Continuous feedback and rapid iteration
🧠 AI Integration Experts: Specialized in incorporating AI into production systems
πŸ‡ΊπŸ‡Έ US/Canada Team: Cultural alignment and timezone compatibility
🀝 True Partnership: We're invested in your long-term success

Get Started Today

Ready to Build the Future?

Stop rebuilding the foundation. Start building your competitive advantage.

What You'll Get:

Ready to transform Your Development Process?

Book a Prefab Demo

See how Prefab can accelerate your next project with a personalized demonstration.


Schedule Sprint Zero

Start your project the right way with our proven discovery process.


Join Our Community

Connect with other teams building on Prefab and share best practices.


Let's talk about how we can help.

We LOVE talking about ideas and how to apply tech to bring them to life. Whether your ready to build tomorrow or exploring, we’ll share our thoughts and help however we can.

Get in Touch