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CloudKit 101

Gui Rambo writes about his coding and reverse engineering adventures.

Stop Xcode 14 beta from draining your battery

There's a bug in Xcode 14 betas 4-6 that causes your CPU to go crazy and drain your battery. Here's a workaround.

Indie Mac App DevOps With GitHub Actions

Automate testing, signing, notarizing, and distribution of Indie Mac App DevOps With GitHub Actions

How to create custom SF Symbols with Sketch

Since Apple introduced SF Symbols in 2019, many product designers for iOS, including myself, have been asking themselves when it will

Inversion of Control Containers and the Dependency Injection pattern

Explaining the Dependency Injection pattern, by contrasting it with Service Locator. The choice between them is less important than the principle of separating configuration from use.

Resolver for iOS Dependency Injection: Getting Started

Learn how to use Resolver to implement dependency injection in your SwiftUI iOS apps to achieve easily readable and maintainable codebases.

Converting closure-based code into async/await in Swift

Learn about checked continuations and converting closure and delegate-based code into async/await in Swift.

Redis and Vapor With Server-Side Swift: Getting Started

Learn how to use the in-memory data store, Redis, and Vapor to cache objects by saving them in JSON, then configuring them to expire after a set time.

Understanding Data Flow in SwiftUI

In this tutorial, you’ll learn how data flow in SwiftUI helps maintain a single source of truth for the data in your app.

Easy Topic Classifier on iOS with Apple’s Natural Language Framework

How to take advantage of Apple’s APIs with already-existing data for text classification

Creating an iOS Widget for your Wallet app

Widgets are a powerful extension for your iPhone, iPad and Mac apps and is a perfect way to extend and personalize your iPhone home screen with new visual functionality.

Swift 4 is almost upon us, and I thought I would explore one of its features that I haven’t had the opportunity to that much: KeyPaths. There’s a lot of interesting nuance in here that I previously didn’t realize existed which I’d love to share.

Executing AppleScript in a Mac app on macOS Mojave and dealing with AppleEvent sandboxing

Over a weekend recently I built a tiny Mac app (more on that later). What I was trying to achieve required executing AppleScript, like so many things on macOS. It seemed simple enough, but of course new app sandboxing restrictions...