domainstack vs arvo vs domainstack-derive

Write validation once, use everywhere: Rust rules auto-generate JSON Schema + OpenAPI + TypeScript/Zod. WASM browser validation. Axum/Actix/Rocket adapters.

Validated, immutable value objects for common domain types (email, money, identifiers, …)

Derive macros for domainstack: #[derive(Validate, ToSchema, ToJsonSchema)] - validation + auto-generate OpenAPI/JSON Schema