Offtopic: the "scan line" thing that the left-hand pane labeled "Documentation" is doing takes a continuous ~12% of a CPU on a Mac Studio. Incredible waste for a pointless visual effect.
I recently rewrote my frontend's API from GraphQL to REST (I had a public API that was always behind on functionality - this approach forces me to keep it up to date), using Hono + Zod has been brilliant for creating types that my frontend can consume AND generate into OpenAPI specs/clients.