Antoine v.d. SwiftLee 

@twannl

I teach 150K developers how to write better apps faster through my developer tool, blog, and newsletter. Join my free course to get started 👇🏻

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Joined December 2009

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Antoine v.d. SwiftLee 
@twannl
Mar 28
Not one, but six new Agent Skills! Early adopters improved Xcode build times by 78%. github.com/AvdLee/Xcode-B… After weeks of work, I launched my latest Agent Skill at Let’s Vision in Shanghai. Here’s how it works: It runs 3 clean + 3 incremental builds It analyzes build logs
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Antoine v.d. SwiftLee 
@twannl
10h
I can't imagine writing tests using XCTest anymore, Swift Testing is so much better. Are you already using it? avanderlee.com/swift-testing/… #swiftlang #iosdev
Antoine v.d. SwiftLee 
@twannl
12h
Simulator demos are much easier to follow when every tap is visible. I added Touch Indicators to RocketSim for exactly that: screenshots and recordings can show touches, and Touch Attention Mode keeps the pointer visible during the whole flow.
Antoine v.d. SwiftLee 
@twannl
16h
ContentBuilder in SwiftUI, Headless Xcode 27 MCP, IOS 26' DataDetector. It's what's in today's SwiftLee Weekly: swiftlee-weekly.com/tomorrow #swiftdevelopment #iosdevelopment #swiftui #swiftlanguage
SwiftLee Weekly by Antoine van der Lee
From pages.swiftlee-weekly.com
Antoine v.d. SwiftLee 
@twannl
Aug 17
Meet the Swift Testing framework avanderlee.com/swift-testing/… 💥 Test code that calls fatalError with exit tests 📎 Attach files and images to failing tests 🤖 Teach your AI agent to write tests the right way #swiftlang #iosdev
Swift Testing explained with code examples
From avanderlee.com