1. Software Development

Systematic diagnostics for SwiftUI navigation failures including unexpected pops, state loss, deep link errors, and production crashes.

Provides thread-safe concurrency primitives and best practices for Swift, including Mutex, OSAllocatedUnfairLock, and Atomic types, with guidance on lock usage and deadlock prevention.

Diagnoses and resolves battery drain and overheating issues in iOS/iPadOS apps through systematic power profiling and subsystem analysis.

Systematic debugging workflows for SwiftUI views addressing complex state dependencies, unexpected update patterns, and Instruments integration.

Provides support for iOS testing including unit, UI, and async tests with Swift and XCTest.

Diagnoses and resolves common camera capture issues in mobile applications, including preview rotation, freezing, and AVCaptureSession errors.

Provides comprehensive solutions for Swift Codable protocol usage, including JSON encoding/decoding, custom serialization, and error resolution for Swift 6.x.

Provides a testing-first implementation for in-app purchases, subscriptions, and transaction handling using StoreKit 2 architecture.

Enables raw SQL query execution, complex joins, and reactive database operations with GRDB in iOS/macOS apps, featuring performance profiling and direct SQLite access.

Diagnoses Metal porting issues including rendering artifacts, shader errors, and GPU crashes in graphics applications.

Comprehensive reference for iOS background task APIs including BGTaskScheduler, BGAppRefreshTask, and background URLSession with WWDC code examples.

Comprehensive API reference for implementing iOS app extensions, widgets, Live Activities, and Control Center controls using WidgetKit, ActivityKit, and App Groups.

Provides decision trees and deep workflows for selecting Apple Instruments tools to diagnose performance issues like slowness, memory leaks, and battery drain.

Comprehensive reference for implementing and debugging SwiftUI animations, including VectorArithmetic, @Animatable macro, and UIKit/AppKit bridging, covering iOS 13 to 26.

Diagnoses and optimizes iOS app performance issues including memory leaks, retain cycles, and battery drain using Instruments workflows.

Configures UI test recordings in Xcode 26 for enhanced stability and multi-configuration replay, aligned with WWDC 2025 best practices.

Diagnoses and resolves retain cycles in Objective-C blocks through systematic weak-strong pattern analysis, preventing memory leaks and crashes.

Automates triage of TestFlight crash reports, symbolication, and feedback analysis for iOS beta testing.

Provides implementation guidance for iOS App Shortcuts API (Siri/Spotlight) including configuration, suggested phrases, and debugging for iOS 16+.

Aids iOS developers with GPU rendering, Metal migration, shader conversion, and ProMotion display performance optimization.

Provides reference documentation for Apple's Core Location API, covering CLLocationUpdate, authorization, background location, and geofencing features.

Diagnoses SwiftData migration failures including schema mismatches, relationship errors, and device-specific crashes to prevent data loss.

Addresses frame rate issues, frame pacing, and render loop configuration in Metal-based applications, including ProMotion display synchronization and system cap handling.

Provides iOS networking utilities for NWConnection with completion handlers, enabling backward compatibility for apps not using async/await on iOS 12-25.