Give your simulator superpowers

RocketSim: An Essential Developer Tool
as recommended by Apple

Issue 270
May 06, 2025

This week's SwiftLee Weekly covers:

  • 3 Indie Marketing Tips
  • Using Task Local values for dependencies
  • Will WWDC have a big impact?

Enjoy this week's SwiftLee Weekly!

THIS WEEK'S BLOG POST

​Testing push notifications on the iOS simulator​

Many apps support push notifications, but Xcode doesn't provide an easy way to test them in the Simulator. Your options are limited, and many developers reach out to their physical device combined with some kind of testing server. Luckily, there's a native Mac app that allows you to test right in the Simulator. A productivity boost awaits!

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CURATED FROM THE COMMUNITY

​Building Better Apps with RocketSim - Special Guest Antoine van der Lee!​

It’s not often that I share so much background information on how I’ve built RocketSim. Join me and Peter Friese and discover what I’m working on!
​youtube.com​

​Adding dependencies to binary Swift packages​

A great story by Daniel Saidi where he shares his struggle of distributing a closed-source binary package with the need for dependencies.
​danielsaidi.com​

​Applying to, prepping for, and speaking at Deep Dish Swift​

I’ve had the pleasure of drinking (a few too many) beers with Jacob at Deep Dish, and it’s fantastic to read about his journey in this detailed article. He shares his journey from applying and getting accepted for his first talk ever, to writing and performing the talk.
​jacobzivandesign.com​

​Dependency container on top of task local values in Swift​

Most of the times, you don’t need task local values. However, this example by Majid Jabrayilov might inspire you!
​swiftwithmajid.com​

​Three Indie Marketing Tips from my Deep Dish 2025 Talk​

I’ve learned a ton from the talk by Jordan Morgan at Deep Dish, and I’m currently actually using the sheet he provides in this article for my marketing!
​swiftjectivec.com​

CODE SNIPPET OF THE WEEK

Lazy variables in Swift

You can find this post on Twitter/X, LinkedIn, or Bluesky.

QUESTION OF THE WEEK

“
Will WWDC have a big impact on Swift Concurrency?

I've had a short discussion on X about this: will WWDC have a positive impact on Swift Concurrency?

While most changes are unpredictable, we can assume many positive changes are coming to Swift. I would be surprised if we did not get a Swift 6.2 release with Xcode 17.

Historically, there have always been changes to Swift that didn't go through Swift Evolution Proposals. Let me be clear: most changes do happen through SE proposals!

Yet, it makes me highly positive about what's coming next. I've seen the accepted proposals—(you did too, if you carefully watched the above section in this newsletter)—and they're promising.

Last week, I gave a talk at Deep Dish Swift about Swift Concurrency and had the chance to discuss this topic with several other developers. In my talk, I said that Swift Concurrency will become less daunting. Let's say I've had a so-called birdie moment to confirm my statement. Stay tuned!

Want to have your question answered next week? Ask your question via this form (anonymously) or reply to this email with your question.

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

Antoine

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