Episode notes
Building computers, running A/B tests as an indie developer, using UIKit as a layout tool for SwiftUI views, and deciding whether to use Core Data or a more simple on-disk data storage solution.
Stacktrace
by John Sundell and Gui Rambo · English · Tech & Science
A podcast about life and technology from two developers’ perspectives. With John Sundell and Gui Rambo.
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195: “The Swift historian”
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16 Feb 2023 · 1 hr 19 min
194: “Definitely not called a puppy”
How game controllers communicate with a Mac, handling asynchronous data and actions in SwiftUI, and various ways to use view models within a code base.
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12 Jan 2023 · 1 hr 15 min
193: “Build your own Mac”
Thoughts on the most recent Mac Pro rumors, building custom layouts for SwiftUI views in a backward-compatible manner, and the mechanics of making a UI interaction feel responsive and fluid.
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24 Nov 2022 · 53 min
191: “Back to the future”
Building custom collection view layouts, introducing new features into a legacy code base, and managing patch releases while also working on a major new version of an app at the same time.
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2 Oct 2022 · 1 hr 9 min
190: “Actual trips to the Dynamic Island“
John’s got the new AirPods Pro, Rambo’s got the iPhone 14 Pro, so the two share their initial impressions of using these new devices and how features like Dynamic Island and Adaptive Transparency work in day-to-day use.
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15 Sep 2022 · 1 hr 1 min
189: “The UI equivalent of a singleton”
John and Rambo discuss three of the key announcements that Apple made during their “Far Out” event — the Apple Watch Ultra, the new AirPods Pro, and the iPhone 14 Pro.
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6 Oct 2026 · 51 minNew
211: “It’s not analytics, it’s telemetry”
John and Rambo discuss various ways of implementing logging, telemetry, and analytics within a project, and how to decide when and how to bring in a third party dependency.
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25 Aug 2026 · 1 hr 13 min
210: ”Just bytes in a pipe”
John and Rambo revisit the topic of closures and how their use has evolved since Objective-C’s blocks, and then go on a behind-the-scenes deep dive into AirBuddy 3.
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31 Jul 2026 · 48 min
209: “False positives or positive negatives”
John and Rambo discuss the pros and cons of using AI assistants and agents in the context of open source, as well as how unit testing has evolved on Apple’s platforms during the last few years, with the introduction of tools such as Swift Testing.
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22 Jun 2026 · 1 hr 7 min
208: “You are the compiler”
John and Rambo discuss some of the new APIs and technologies introduced at WWDC26, including new Swift features, and changes to frameworks like AppKit and FoundationModels. Also, the state of Swift 6, and WWDC video watching strategies.
