DDD By Examples - Library

Provides a full implementation from Event Storming to code, with detailed documentation on bounded contexts and aggregates, as shown in the README's domain description and process discovery sections.

Uses hexagonal architecture to separate domain logic from infrastructure, ensuring testability and flexibility, evidenced by the project structure and ArchUnit rules enforcing layer boundaries.

Leverages immutable objects, pure functions, and Vavr monads for domain logic, reducing side effects and improving reliability, as described in the 'Functional thinking' section with code examples.

Models business states as distinct types (e.g., AvailableBook, BookOnHold) to enforce invariants at compile time, demonstrated in method signatures that prevent invalid operations.