In recent posts, a seasoned full‑stack engineer shares the core patterns that keep React + TypeScript projects scalable. He emphasizes React Query and TanStack Query as the backbone, while noting that consistent query keys and a factory approach reduce cognitive load. These habits stem from years of building production‑grade apps.

The query key factory centralises key generation, giving developers auto‑completion and a single source of truth for invalidations. By exporting a map that calls `queryClient.invalidateQueries()` from one place, changes ripple across dashboards, lists, and detail pages without hunting through components. This pattern keeps data freshness predictable.

Moving away from traditional API routes, the author adopts Server Actions in Next.js, Astro, and TanStack Start. These functions offer type safety, direct client calls, and built‑in error handling, but still require authentication and rate limiting. Coupled with CASL, permission logic stays declarative, testable, and isolated from business flow.

A lightweight Repository layer keeps database calls pure, making ORM swaps trivial. The author also leverages SSR to pass initial data to React Query, eliminating loading flashes and improving perceived performance. Finally, extracting stateful logic into custom hooks keeps components lean and testable. Together, these conventions lower maintenance costs and accelerate feature delivery.