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Frequently asked questions

12 questions

What is supastack?

supastack is a modular foundation for building AI-powered SaaS products. It brings together common infrastructure so you can focus on product-specific features.

Does it support web and mobile?

Yes. supastack includes Next.js and Expo apps as starting points for web and mobile experiences.

What authentication is included?

Better Auth covers email/password, OTP, and social sign-in. Personal workspaces are provisioned with the account so product records stay scoped from day one.

How does it support AI?

supastack includes configurable multi-provider AI, usage tracking, budgets, and encrypted bring-your-own-key support.

How are subscriptions handled?

For products built on the kit, Stripe billing, subscriptions, and entitlements form the paid-access foundation. Provider secrets stay server-only.

Where does my product-specific code live?

Product-specific features remain in a separate codebase while the product configures and integrates supastack’s foundation modules.

How does supastack pricing work?

The kit is a one-time purchase with lifetime updates: One Framework at $249 or All Frameworks (Next.js, iOS, Android) at $499, plus $75 per extra developer seat. No kit subscription. Checkout on this site is not connected yet.

How do workspaces scope my data?

User-owned records are scoped by workspaceId. Identity, entitlements, AI usage, billing events, and audit entries stay inside the personal workspace boundary.

How do background jobs work?

Trigger.dev is the explicit job runtime. The JobRunner contract only promises enqueue, status, and cancel—workflow semantics stay Trigger.dev-specific and explicit.

How is email different from outreach?

Transactional email covers product workflows such as completion notices. Cold outreach and campaigns are product concerns outside this kit’s email module.

Can mobile expose Stripe Checkout?

Not yet. Mobile must not present Stripe Checkout until RevenueCat exists. Web can use Stripe for subscriptions and entitlements when billing is configured.

Where do AI provider keys live?

Bring-your-own-key credentials are encrypted and stay server-only. Keys are redacted from logs; usage and budgets remain visible at the workspace level.

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Documentation
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Web / Getting started

Introduction

Get to know the foundation, then make it yours.

Build from a shared foundation

supastack is a modular foundation for AI SaaS on web and mobile. The web surface uses Next.js for the interface and backend-for-frontend. Shared TypeScript packages handle identity, workspaces, billing, AI, jobs, email, and observability.

Start with the local reference flow to understand how the modules fit together. Configure production providers only after that flow works in your environment.

Find your way around

Applications compose the shared packages. Product-specific features belong in the consuming product codebase rather than in the reusable core.

apps/
  web/       Next.js interface and API routes
  mobile/    Expo application
packages/
  auth/      Identity and sessions
  db/        Schema and workspace persistence
  billing/   Billing and entitlements
  ai/        Providers, routing, and usage
  jobs/      Background job contract
  email/     Transactional delivery

Choose your starting point

Follow Local setup to prepare the workspace and run the deterministic checks. Use the Mobile tab for Expo configuration, or Modules to explore the contracts underneath both applications.

The local golden path has passed in the project’s development environment. Timed clean-clone setup, real-provider smoke, deployment, and physical-device acceptance remain separate verification steps.