The SaaS Operating System

The typescript foundationyour saas deserves.

Featuring Tansstack Start, Better Auth, Hono, Drizzle and PostHog observability pre-configured for production. 100% Type-Strict.

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Technology stack

Built with technologies you already trust, configured the way they should be.

No experiments. No hype stack. Just deliberate choices.

React
React Query
Tanstack
TypeScript
Railway
Better Auth
Zod
Drizzle
Featured

Built for the Edge Cases.
Hardened for Production.

I built the parts you hate so you can build the parts they love. Explore the Logic Layer designed to handle Silent Failures before they reach your customers.

Tenant-Isolated Authentication

Identity Layer
  • No more 'JWT vs. Cookie' debates; just import and ship.
  • Built-in RBAC for fine-grained workspace permissions.
  • Automated multi-tenancy to prevent data leakage.

Better Auth pre-configured for complex B2B and B2C organizational structures.

Billing State Machine

Revenue Protection
  • 7-day Grace States to prevent instant churn on failed cards.
  • Usage-based metered billing via Dodo Payments.
  • Failure Playbooks for delayed or missing webhooks.

A fluid lifecycle manager that treats payments as a process, not a boolean.

Full-Stack Observability

Full-Stack Observability
  • Real-time event tracking and conversion funnel analysis.
  • Deep stack tracing to identify performance bottlenecks.
  • Session replays to understand exactly where users get stuck.

Catch errors in the Chassis before your users do with PostHog and Sentry.

FumaDocs Integration

FumaDocs Integration
  • Ship-Ready MDX templates for quick provisioning.
  • Architecture diagrams to help you understand The Core.
  • Setup guides designed to get you running in under 10 minutes.

A high-performance documentation engine that lives alongside your code.

Bulletproof Background Jobs

Bulletproof Background Jobs
  • Automatic retry logic for failed operations.
  • Idempotency keys to prevent duplicate actions.
  • Real-time job monitoring and manual restart capabilities.

Manage long-running tasks and cron jobs via Trigger.dev without timeouts.

Hardened File Storage

Hardened File Storage
  • Provision pre-signed URLs for secure, direct-to-cloud uploads.
  • Automatic image optimization and CDN delivery for maximum Operational Safety.
  • Tenant-Isolated storage buckets to ensure strict data separation between Workspaces.

High-performance drag-and-drop uploads via ImageKit designed for the Logic Layer.

The Infrastructure Modules

Alert Infrastructure
Transactional communication with built-in resilience. Queue-based sending via Resend to handle provider downtime. Pre-configured templates for usage warnings, billing alerts, and security notifications.
Feature Flags
Type-strict deployment control. DB-backed flags for instant toggling without redeploying the Chassis. Plan-based gating and percentage-based rollouts to protect system integrity.
Testing
Automated operational safety. Playwright E2E tests for auth flows, billing transitions, and tenant isolation. Pre-written test suites for revenue protection and isolation verification.
Performance
Minimalist speed by design. Request-level caching layers and optimized single source of truth queries. Edge-ready architecture with background job visibility to prevent bottlenecking.
i18n Support
Global-ready foundations. Multi-language support with automated locale detection integrated into the Chassis. Translatable mail templates and UI components for a worldwide customer base.
Support Tools
Read-only control plane access. Admin impersonation tools to debug user issues without compromising security. Detailed audit logs and a Report a Problem infrastructure for instant feedback.
Growth Features
Built-in conversion engines. Guided onboarding checklists designed to boost user activation rates. Usage threshold alerts and automated upgrade suggestions based on Logic Layer limits.
Cancellation Reason Capture
Data-driven offboarding playbooks. Integrated modals to capture why users churn, fueling your next iteration. Soft-delete logic and account deactivation protocols to build long-term trust.
AI Chatbot
Intelligent capabilities. Streaming completions via AI SDK with built-in context awareness.
Pricing

Choose the Plan That Matches Your Ambition

How many hours will you spend building
Auth, Billing, and Multi-tenancy from scratch?

0 Hours0 Hours300+ Hours

Drag to see the real cost of building Auth, Billing, and Multi-tenancy yourself.

Foundation
Solo engineer
For the solo engineer building a resilient side-business.

Provision your first SaaS on a Bulletproof core.

$325
One-time payment. Lifetime access.
What's Included
Full Access to The Core (Next.js, Drizzle, Better Auth)
Tenant-Isolated Architecture
Basic Resilience Playbooks
Lifetime access to The Logic Layer updates
Initialize The Foundation
Infrastructure
Founder / Agency
For the strategic founder or agency capturing the market.

Unlimited Chassis for unlimited growth.

$795
One-time payment. Lifetime access.
What's Included
Everything in The Foundation
Unlimited Projects (Deploy for clients or yourself)
Premium Modules (AI SDK, Admin Control Plane)
Priority access to new Failure Playbooks
Provision Unlimited Access

Treat the purchase as a business investment, not a “get rich quick” scheme.

Manual Architecture
120+ Hours (Hard Labor)

Reinventing the wheel on auth, billing, and isolation.

With ts-saas
Day 0 (MVP-Ready)

Initialize the Logic Layer and focus on core features immediately.

Engineering ROI
$8,000 – $12,000 (Saved)

In senior developer time and Opportunity Cost.

Still have doubts?

Book a brief session with the founder to discuss your Architecture or Logic Layer requirements.

Schedule a Call

Frequently Asked Questions

The Last SaaS Foundation You’ll Ever Need

Don’t let technical debt kill your side-SaaS before it even launches. Use the Chassis I built to manage your business in 2 hours a week.

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