fuse:swift-apple-expert

Expert Swift and SwiftUI developer for all Apple platforms. Use when building iOS, macOS, iPadOS, watchOS, or visionOS apps, implementing SwiftUI views, designing app architecture, handling concurrency, or optimizing performance.

Build apps for macOS, iPadOS, watchOS, and visionOS with platform-specific features. Use when creating menu bar apps, iPad split views, Apple Watch complications, Vision Pro immersive experiences, or multi-platform adaptations.

SOLID principles for Swift 6 and SwiftUI (iOS 26+). Apple recommended patterns, @Observable, actors, Preview-driven development.

App icons, SF Symbols, and launch screens for iOS/macOS/watchOS/visionOS. Use when adding app icons, using SF Symbols, configuring launch screens, or setting up Asset Catalogs.

Design Swift app architecture with MVVM, Clean Architecture, dependency injection, and repository patterns. Use when structuring iOS/macOS projects, creating ViewModels, implementing DI, or organizing code layers.

Build, archive, code signing, and App Store distribution for iOS/macOS apps. Use when configuring build settings, signing, TestFlight, notarization, or CI/CD pipelines.

Implement Swift 6 concurrency with async/await, actors, Sendable, Task, MainActor. Use when handling asynchronous operations, managing shared state safely, fixing data race errors, or migrating to Swift 6 strict concurrency.

Automatic internationalization for Swift/SwiftUI apps. Use when writing ANY user-facing text - always localize with String Catalogs, LocalizedStringResource, and proper pluralization patterns.

Optimize SwiftUI and Swift app performance with Instruments profiling, lazy loading, memory management, and view optimization. Use when diagnosing slow UI, fixing memory leaks, optimizing scroll performance, or reducing app launch time.

Build production SwiftUI views, custom components, layouts, and view modifiers. Use when creating iOS/macOS UI components, implementing responsive layouts, building custom modifiers, or designing reusable view hierarchies with @ViewBuilder.

Implement data persistence with SwiftData, Core Data, CloudKit sync, and local storage. Use when storing app data, creating database models, syncing with iCloud, or managing user preferences with AppStorage.

Implement SwiftUI navigation with NavigationStack, NavigationSplitView, deep linking, and programmatic routing. Use when building navigation flows, handling deep links, implementing tab bars, or creating multi-column layouts.

Test SwiftUI apps with XCTest, UI tests, snapshot testing, and async testing. Use when writing unit tests for ViewModels, creating UI automation tests, implementing snapshot tests, or testing async code.