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Notes on iOS, Swift, testing, and building for Apple platforms.

7 posts

June 29, 2026

Building FauxCam: A Fake Camera for the iOS Simulator

The iOS Simulator has no camera, so I built one. This is the story of why I made FauxCam, how it works under the hood, the hard parts I had to fight through, and how you can contribute.

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January 21, 2025

Building Command-Line Tools in Swift: Part 2 — Publishing a CLI Application

In this part, we'll explore how to take a more complex CLI application, such as AssetOrganizer, and prepare it for distribution and publishing, including adding GitHub Actions support for CI/CD workflows.

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January 6, 2025

Building Command-Line Tools in Swift: Part 1 - Introduction and Key Concepts

Learn how to build command-line tools in Swift, exploring key concepts, libraries, and best practices.

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December 29, 2024

Method Swizzling in iOS: A Deep Dive into Runtime Magic

Learn how to use method swizzling in iOS to dynamically interchange method implementations at runtime, with practical examples and best practices.

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November 22, 2024

Snapshot Testing in iOS: Why and How?

Learn how to use snapshot testing in iOS to ensure the visual correctness of your application without relying on time-consuming manual checks or full-blown UI tests.

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November 12, 2024

A Practical Guide To Testing Localizations in iOS with XCTest

Learn how to automate localization testing in iOS using XCTest to ensure that every key is correctly translated and present in your localization files.

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October 15, 2024

Detecting Memory Leaks in Swift: A Practical Guide for XCTest

Learn how to detect and prevent memory leaks in Swift applications using XCTest with a custom extension that automates memory leak detection in your test suite.

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Blog

All posts

Building FauxCam: A Fake Camera for the iOS Simulator

Building Command-Line Tools in Swift: Part 2 — Publishing a CLI Application

Building Command-Line Tools in Swift: Part 1 - Introduction and Key Concepts

Method Swizzling in iOS: A Deep Dive into Runtime Magic

Snapshot Testing in iOS: Why and How?

A Practical Guide To Testing Localizations in iOS with XCTest

Detecting Memory Leaks in Swift: A Practical Guide for XCTest