iiinova — where your digital self keeps evolving

Antoine v.d. SwiftLee  @avanderlee.com · 29/09/2026

Xcode Instruments, run by agents, helps me optimize iPhone Duo support in RocketSim. I haven't shared this out loud yet, but search "RocketTrace" in the Mac App Store, and you might be in for a treat 🤫

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Antoine v.d. SwiftLee  @avanderlee.com · 26/09/2026

4 Swift Evolution proposals changed status this week. The tracker checks the official metadata daily and keeps a readable history, so you don't have to monitor every proposal manually. swiftlee-weekly.com/swift-evolut... #swiftlang #iosdev

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Antoine v.d. SwiftLee  @avanderlee.com · 24/09/2026

It always fascinates me that an agent thinks he needs multiple weeks for something that's done within hours after prompting "Implement"

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Antoine v.d. SwiftLee  @avanderlee.com · 23/09/2026

Create beautiful iPhone Duo recordings using Xcode's Device Hub. Coming soon to RocketSim 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 22/09/2026

Adding iPhone Duo support using the SwiftUI Expert Skill and RocketSim means two live Simulator previews right in Cursor, Claude or Codex, to watch your agent doing its best. Welcome in 2026 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 21/09/2026

After months of hard work, with more than 100 developers as beta testers, this is quite a big moment! Wish me luck 🤞

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Antoine v.d. SwiftLee  @avanderlee.com · 21/09/2026

Xcode's Device Hub with slow animations, quick dark mode switching, and a shake shortcut. Hope you like it!

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Antoine v.d. SwiftLee  @avanderlee.com · 20/09/2026

Using Codex to build SwiftUI Apps? 1. Open Plugins 2. Search for SwiftUI Expert 3. Install the plugin 4. Enjoy higher-quality code 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 19/09/2026

6 Swift Evolution proposals changed status this week. The tracker checks the official metadata daily and keeps a readable history, so you don't have to monitor every proposal manually. swiftlee-weekly.com/swift-evolut... #swiftlang #iosdev

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Antoine v.d. SwiftLee  @avanderlee.com · 19/09/2026

Add iPhone Duo support to your apps with my SwiftUI Agent Skill latest release v5.1.0 ✨ - Dedicated iPhone Duo reference - Enhanced layout guidance And more!

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Antoine v.d. SwiftLee  @avanderlee.com · 18/09/2026

Option click on the pose buttons inside Device Hub's iPhone Duo simulator to control the beautiful animation 🤩

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Antoine v.d. SwiftLee  @avanderlee.com · 18/09/2026

Official iPhone Duo Simulator is here! Download Xcode 27.1 beta and you're good to go. Link below 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 18/09/2026

iOS Devs: Device Hub misses a lot of features compared to Xcode's Simulator. For example: a shortcut to shake the device. Missing more features? Reply, and I'll see what I can do!

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Antoine v.d. SwiftLee  @avanderlee.com · 17/09/2026

Xcode's Device Hub misses drag & drop support for files like certificates, screenshots and videos. Losing simple habits like this can annoy you as a developer who uses these tools daily. Let me fix it for you in RocketSim 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 16/09/2026

AI is great at building apps using SwiftUI? Yes, but it's also great at building poorly performing apps. This is the result of an app I'm building: many issues. Luckily enough, solvable with RocketTrace's CLI and Agent Skill!

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Antoine v.d. SwiftLee  @avanderlee.com · 16/09/2026

iOS Devs: missing the dark mode CMD + Shift + A shortcut in Device Hub? I solved it for you!

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Antoine v.d. SwiftLee  @avanderlee.com · 15/09/2026

Using AI for App Accessibility Audits. It's coming to RocketSim, and I need your help! What are the things you're manually checking for accessibility? Tell me, and I'll try to add it to this automated audit 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 15/09/2026

Join the waitlist at www.rockettrace.app

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Antoine v.d. SwiftLee  @avanderlee.com · 15/09/2026

Xcode Instruments, directly connected to the Simulator. Connecting the dots with RocketSim and RocketTrace 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 14/09/2026

iOS devs: Meet with Apple! New online sessions for iPhone Duo: developer.apple.com/events/view/...

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Antoine v.d. SwiftLee  @avanderlee.com · 12/09/2026

1 Swift Evolution proposal changed status this week. The tracker checks the official metadata daily and keeps a readable history, so you don't have to monitor every proposal manually. swiftlee-weekly.com/swift-evolut... #swiftlang #iosdev

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Antoine v.d. SwiftLee  @avanderlee.com · 10/09/2026

Today will be the day; I feel it. This time, it will remember! Wish me luck 🙏

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Antoine v.d. SwiftLee  @avanderlee.com · 09/09/2026

Xcode 27 Release Candidate is here, time to submit your app updates! developer.apple.com/download/all...

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Antoine v.d. SwiftLee  @avanderlee.com · 09/09/2026

iPhone Duo for iOS App Developers: new videos available now! developer.apple.com/videos/all-v...

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Antoine v.d. SwiftLee  @avanderlee.com · 09/09/2026

Cursor, Claude Code, or Codex: You can soon use RocketSim to do a design review while you watch the Simulator in the browser, following along. Here's an example where it reviewed my iPad Stock Analyzer app ✨

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Antoine v.d. SwiftLee  @avanderlee.com · 06/09/2026

Using SwiftUI a lot? "One view updated 49 times. 47 invalidations had no recorded value change." That’s the kind of insight coming to the next RocketTrace beta. I'll help you find performance opportunities: - Repeated invalidations - Updates that exceed the frame budget - What triggered the work?

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Antoine v.d. SwiftLee  @avanderlee.com · 05/09/2026

3 Swift Evolution proposals changed status this week. The tracker checks the official metadata daily and keeps a readable history, so you don't have to monitor every proposal manually. swiftlee-weekly.com/swift-evolut... #swiftlang #iosdev

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Antoine v.d. SwiftLee  @avanderlee.com · 02/09/2026

Thanks to RocketSim's CLI, Helm's CLI, and Sketch's MCP, I've been able to improve my screenshots and translate them into more languages in a token-efficient way, all automatically. What a time to be a developer 🤩

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Antoine v.d. SwiftLee  @avanderlee.com · 29/08/2026

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Antoine v.d. SwiftLee  @avanderlee.com · 24/08/2026

RocketTrace beta build 4 will include some great improvements! ✨ UI Polish ⚖️ Multiple runs support ❤️‍🩹 Quick health checks Xcode Instruments starts to become fun to use!

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Antoine v.d. SwiftLee  @avanderlee.com · 22/08/2026

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Antoine v.d. SwiftLee  @avanderlee.com · 20/08/2026

Upside of using RocketTrace myself: RocketSim becomes faster and higher quality Downside of using RocketTrace myself: I lose valuable test apps because my apps become too good 🙈

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Antoine v.d. SwiftLee  @avanderlee.com · 20/08/2026

Xcode Instruments and OSSignposter mark important operations in your app. While they helped me, I still find it too hard to pinpoint them easily. Coming in the next RocketTrace beta: - Signpost-based performance issues - Quickly indicate what to fix for which signpost combo

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Antoine v.d. SwiftLee  @avanderlee.com · 20/08/2026

I'm honestly such a big Cursor fan, if only because of the freedom to pick and combine models where needed. Any other fans here?

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Antoine v.d. SwiftLee  @avanderlee.com · 17/08/2026

Slow animations broken in Xcode's Device Hub? Not if you're using RocketSim 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 12/08/2026

My Swift Concurrenct Agent Skill now supports the Agent Plugins open format. Install it in your favorite IDE, like Cursor, Claude, or like in this video: ChatGPT 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 10/08/2026

Xcode 27 beta 5 is now available! If you enjoy the coding intelligence features: it now adds a new MCP server experience that runs without requiring an open Xcode workspace. Really looking forward to give this a try!

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Antoine v.d. SwiftLee  @avanderlee.com · 09/08/2026

iOS Developers: it's time for a brand new developer tool! No more excuses to improve your app's performance using Xcode Instruments. Beta signups are open 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 07/08/2026

Xcode Instruments intimidates, finding where to investigate is hard. I bet many iOS devs don't use it because of that. It's why I’m building RocketTrace: ranked findings, measured impact, and supporting evidence. I’m opening early beta access in small batches. Link in the first reply 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 06/08/2026

A first look at what I’ve been building: RocketTrace. It turns dense Xcode Instruments traces into ranked, measured evidence, helping you focus your investigation and verify changes with a comparable run. Private TestFlight invites will go out in small batches: rockettrace.app?utm_source=x...

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Antoine v.d. SwiftLee  @avanderlee.com · 31/07/2026

Don't move, boss, keep those agents running 🙅‍♂️ 🐶

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Antoine v.d. SwiftLee  @avanderlee.com · 31/07/2026

iOS developers: we're working on making your developer tooling even better. You know RocketSim, you'll love the other two Rocket apps we'll release later. Stay tuned ⏳

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Antoine v.d. SwiftLee  @avanderlee.com · 24/07/2026

Developers using Xcode, I shipped a new Agent Skill. Who can help me test it? 🚀 github.com/AvdLee/Xcode...

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Antoine v.d. SwiftLee  @avanderlee.com · 24/07/2026

Fresh SwiftUI Agent Skill release ready for you to use!

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Antoine v.d. SwiftLee  @avanderlee.com · 17/07/2026

Yes, this is my physical iPhone streaming Yes, you can now simulate locations on a physical device Yes, universal links and deeplinks testing has never been easier! Just connect your device via USB and enjoy RocketSim 🚀

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Antoine v.d. SwiftLee  @avanderlee.com · 16/07/2026

Push it to the limit (the limit, the limit, the limit, the limit)

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Antoine v.d. SwiftLee  @avanderlee.com · 16/07/2026

Using npx skills for your Agent Skills? Don't forget to use npx skills update regularly to keep your skills updated!

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Antoine v.d. SwiftLee  @avanderlee.com · 15/07/2026

Yes, agents write more code for you No, you should not stop learning I'm so happy that my Concurrency Course is still being respected and used a lot! Don't forget it's you reviewing the code, you being responsible for it merging into main 💡

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Antoine v.d. SwiftLee  @avanderlee.com · 15/07/2026

Building apps with agents? I'm getting closer to publishing my AI fundamentals course. Whether you use Claude, Codex, Cursor, or any other tool: my course is built around fundamentals that work for any IDE or Terminal. Join the waitlist: www.aifundamentals.dev

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