What is Clean Architecture?

Clean Architecture is an architectural style aimed at creating flexible, easily maintainable, and testable applications. The main idea is to divide the system into layers with clear boundaries and dependencies that point inward, towards the business logic.

Key principles:

• External layers (UI, databases, external services) depend on internal layers, not vice versa.
• Business rules and logic are at the center and do not depend on implementation details.
• Use of interfaces to abstract external dependencies.

In Go, this is usually implemented through packages, where internal packages contain business logic, and external packages contain infrastructure and user interaction. This approach facilitates testing and replacing components without affecting the business logic.