start-kit.dev

Use when adding features, routes, components, API endpoints, database schemas, or modifying any part of the start-kit.dev SaaS starter. Covers project-specific architecture, conventions, and patterns for oRPC, Better-Auth, Drizzle RLS, shadcn/ui, Stripe, and feature modules.

TanStack Start best practices for full-stack React applications. Server functions, middleware, SSR, authentication, and deployment patterns. Activate when building full-stack apps with TanStack Start.