Give your simulator superpowers

RocketSim: An Essential Developer Tool
as recommended by Apple

Issue 319
Apr 14, 2026

This week's SwiftLee Weekly covers:

  • Network Optimization using AI Agents
  • Lazy properties in SwiftUI?
  • Kids & Vibe Coding

Enjoy this week's SwiftLee Weekly!

THIS WEEK'S BLOG POST

​Network Requests Optimization using Xcode’s Simulator & Agents​

This feature shipped silently a few months ago and I never got to talk about it in detail: prompt exports for Network Requests.

video preview​

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CURATED FROM THE COMMUNITY

​Checking accessibility with SwiftUI Previews​

SwiftUI Previews are such a great way to check your views in different accessibility states. Rob Whitaker explains how to do this.
​mobilea11y.com​

​Lazy Properties in Swift - Why They Don’t Always Work in SwiftUI​

Have you ever considered using a lazy var in SwiftUI? And it’s impacts? Sagar Unagar will tell you what happens.
​sagarunagar.com​

​Kids and Vibe Coding: The Joy of Building​

My sons are not old enough to understand what I’m doing, let alone vibe coding themselves. Yet, Jordan Morgan’s story will probably be recognizable to all of you with kids.
​swiftjectivec.com​

​Working with files and directories in iOS​

Files and directories for iOS development that make sense to me, but do you know all these insights from Natascha Fadeeva already?
​tanaschita.com​

​How to pluralize English text in Swift without using Localizable strings​

Plurals can be hard in Swift, as long as you don’t know what you’re doing. Oleg Dreyman’s technique can help out!
​olegdreyman.medium.com​

SWIFT EVOLUTION

An overview of last week's Swift Proposal state changes. Check them out when they're in review, as it's your opportunity to influence the direction of Swift's future.

WHAT I'M WORKING ON

Can I email again?

It's a question I've been asking myself yesterday. My agentic coding workflow keeps compounding, make me move faster than ever before with RocketSim's updates.

Last Thursday, I emailed 7K+ subscribers about RocketSim 15.0 (you got the news here first on Tuesday!). It was a lengty email, more detailed, which you can read here as well if you will.

I'm conscious about emailing my subscribers, but at the same time: 15.1.0 is almost live (read: App Store rejection for missing terms URL in the description). It's only been a week, but there are already four new features worth emailing again:

What I like to do in those cases is talk with ChatGPT in my dedicated RocketSim project. It has history and knowledge of the project and it's a great way to discuss potential ideas.

Its answer resonated quite a bit with me: emailing again shows momentum and dedicated attention to progressing fast.

And that's what it is: I'm moving faster than ever and I have so much more bigger features that will change how we all develop apps with Xcode. Stay tuned!

UNTIL NEXT TIME

Continue your Swift development journey

I hope you've enjoyed this week's content. You don't have to wait till next Tuesday for more insights, I share every day on these channels:

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Thank you so much for your support, and until next Tuesday,

Antoine

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