Recent articles

It’s no secret that Swift concurrency can be pretty difficult to learn. There are a lot of concepts that are different from what you’re used to when you were writing code in GCD. Apple recognized this in one of their vision documents and they set out to make changes to how concurrency works in Swift […]

As Swift evolves, a lot of new evolution proposals get merged into the language. Eventually these new language versions get shipped with Xcode, but sometimes you might want to try out Swift toolchains before they’re available inside of Xcode. For example, I’m currently experimenting with Swift 6.2’s upcoming features to see how they will impact […]

A lot of modern apps have a networking component to them. This could be because your app relies on a server entirely for all data, or you’re just sending a couple of requests as a back up or to kick off some server side processing. When implementing networking, it’s not uncommon for developers to check […]

SwiftUI offers several approaches to building lists of content. You can use a VStack if your list consists of a bunch of elements that should be placed on top of each other. Or you can use a LazyVStack if your list is really long. And in other cases, a List might make more sense. In […]

In Swift, we have several ways to “suspend” execution of our code. While that’s almost always a bad practice, I’d like to explain why Task.sleep really isn’t as problematic as you might expect when you’re familiar with Thread.sleep. When you look for examples of debouncing or implementing task timeout they will frequently use Task.sleep to […]

Once you start using Swift Concurrency, actors will essentially become your standard choice for protecting mutable state. However, introducing actors also tends to introduce more concurrency than you intended which can lead to more complex code, and a much harder time transitioning to Swift 6 in the long run. When you interact with state that’s […]

Singletons generally speaking get a bad rep. People don’t like them, they cause issues, and generally speaking it’s just not great practice to rely on globally accessible mutable state in your apps. Instead, it’s more favorable to practice explicit dependency passing which makes your code more testable and reliable overall. That said, sometimes you’ll have […]

A key skill for every app developer is being able to profile your app’s performance. Your app might look great on the surface, but if it doesn’t perform well, it’s going to feel off—sometimes subtly, sometimes very noticeably. Beautiful animations, slick interactions, and large data sets all fall flat if the app feels sluggish or […]

Okay. I’m using the term indie developer loosely here. I don’t consider myself to be an indie developer. But I am independent, mostly. I run my own business where I work on client apps, workshops, my books, this website, my YouTube channel, and more. So I think I qualify as indie, partially. Either way, in […]

Swift Concurrency provides us with loads of cool and interesting capabilities. For example, Structured Concurrency allows us to write a hierarchy of tasks that always ensures all child tasks are completed before the parent task can complete. We also have features like cooperative cancellation in Swift Concurrency which means that whenever we want to cancel […]