Why Not All Hexagons Have Eight Sides - Understanding Hexagonal Architecture

Learning *Hexagonal Architecture* (also known as *Ports and Adapters*) is a valuable investment for developers aiming to build scalable, testable, and maintainable software systems. The core idea—separating the domain logic from external concerns (like databases, web frameworks, or UI)—encourages clean code and better adherence to the *SOLID principles*.

At first, understanding the terminology and mapping it to real-world projects can feel abstract, especially if you're used to layered or monolithic designs. However, once grasped, it simplifies testing (via ports) and enables easier swapping of infrastructure (via adapters). It’s especially powerful in DDD (Domain-Driven Design) contexts.

Overall, it promotes long-term software health and is a must-know for backend architects and serious developers.