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ios-architecture

Guide iOS teams in building modular projects with Swift Package Manager.

Updated Feb 9, 2026
Search Tags:#architecture#ios#modular#dependency-injection#package-manager#swiftpm#runtime-environment
One-click install
npx skills add https://github.com/roncuevas/ios-mv-skill --skill ios-architecture-roncuevas
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ios-architecture
Source: https://github.com/roncuevas/ios-mv-skill/tree/main/ios-architecture
Command: npx skills add https://github.com/roncuevas/ios-mv-skill --skill ios-architecture-roncuevas

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This guide helps iOS teams design or modernize modular applications using Swift Package Manager, aligning project structure and dependencies to enable scalable, testable code.

Core Features & Use Cases

  • Modular Architecture Blueprint: Defines the four package layers (Library, Models, Services, ViewComponents) and their responsibilities.
  • Dependency Injection: Demonstrates using SwiftUI Environment and RuntimeEnvironment to swap real and mock services for testing.
  • Migration Roadmap: Provides a step-by-step approach to migrate existing apps to a modular SPM-based architecture.
  • Guidance & References: Includes patterns like Routable, DataStorage, DataStore, and EnvironmentKeys, plus references for data layer, protocols, services, resources, and tooling.

Quick Start

Initialize a modular iOS project by creating the Library, Models, Services, and ViewComponents packages, add Package.swift files, and wire AppScene to use real services on device or mocks in previews.

Frequently Asked Questions about ios-architecture

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate an existing iOS app to a modular Swift Package Manager architecture?▼

Modular iOS architecture with Swift Package Manager separates projects into four package layers: Library, Models, Services, and ViewComponents. This structure organizes dependencies to enable scalable and testable code across different application components.

How does dependency injection work in a modular iOS app using SwiftUI Environment?▼

Dependency injection in a modular iOS app uses SwiftUI Environment and RuntimeEnvironment to swap real and mock services for testing. AppScene wires real services on device, while previews automatically use mock implementations.

What is the best way to structure iOS packages for scalable and testable code?▼

The best way to structure iOS packages is dividing responsibilities across four layers: Library, Models, Services, and ViewComponents. This architecture blueprint uses dependency injection and common patterns like Routable and DataStorage to ensure testability.

Can I use Swift Package Manager to organize iOS app services and view components separately?▼

Yes, you can use Swift Package Manager to organize iOS apps by separating Services and ViewComponents into distinct packages. This modular approach isolates functionality, clarifies dependencies, and enables independent testing of each layer.

What architectural patterns are recommended for iOS modular projects using SPM?▼

Recommended architectural patterns for iOS modular projects using SPM include Routable, DataStorage, DataStore, and EnvironmentKeys. These patterns standardize navigation, local persistence, and dependency injection across your packages.

Do I need to create a Package.swift file for each module in a modular iOS architecture?▼

Yes, you need to create a Package.swift file for each module when initializing a modular iOS architecture. These files configure your Library, Models, Services, and ViewComponents packages and define their internal dependencies.

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