architecture-patterns

To structure a maintainable macOS app, apply SOLID principles and modular design using Swift Package Manager. This approach separates feature modules and employs patterns like MVVM and Coordinator to ensure scalable, testable code.

To implement the Repository pattern in Swift, you abstract data access logic behind a repository interface. This separates the data layer from the view models, allowing you to decouple core app logic from persistence frameworks and write easily testable code.

Use the Coordinator pattern in macOS app development when managing complex navigation flows. It removes routing logic from view models, allowing you to modularize navigation independently and maintain a clean separation of concerns across your app.

This architecture guidance focuses specifically on macOS applications using Swift 6+. While foundational patterns like SOLID principles, MVVM, and Factory are universally applicable, the specific project structure and implementation details target macOS environments.

To refactor Swift code for SOLID principles, you apply targeted structural changes like extracting responsibilities into separate classes or introducing protocols for dependency inversion. This process transforms tightly coupled code into modular, testable components.

Swift Package Manager modular code organization requires careful dependency management to avoid circular references. As app complexity grows, improperly structured feature modules can create build-time bottlenecks, requiring strict architectural boundaries to maintain scalability.