A Bun workspace with a static Astro site (React islands, Tailwind), a Node API on Effect's HttpApi and a shared contract package, so islands call the API through a typed client. The API can also serve the built site.
Bun-workspace monorepo with an Expo Router app (NativeWind, TanStack Query), a Bun + Hono API (zod-openapi, Drizzle on Postgres), and a shared zod schemas package; the app reaches the API through a typed Hono client behind a hooks layer.
FastAPI backend (uv, ruff, mypy strict, pytest) plus a React single-page app (Vite, React Router in SPA mode, TanStack Query, Tailwind, shadcn/ui) that talks to the API through a typed client generated from its OpenAPI spec.