1. X
  2. Antoine v.d. SwiftLee 
Log inSign up
Antoine v.d. SwiftLee 
29.9K posts
Image
user avatar
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 👇🏻
Free Concurrency Course 👇
swiftconcurrencyplaybook.com/?ref=x_bio&utm…
Joined December 2009
857
Following
73.3K
Followers
RepliesRepliesMediaMedia

New to X?

Sign up now to get your own personalized timeline!

Create account

By signing up, you agree to the Terms of Service and Privacy Policy, including Cookie Use.

Terms·Privacy·Cookies·Accessibility·Ads Info·© 2026 X Corp.
Don't miss what's happening
People on X are the first to know.
Log inSign up
  • Pinned
    user avatar
    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
    Image
    00:00
    129K
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Apr 1, 2020
    TIL; Strings in Swift support emoji calculations 🤯 #swiftlang #iosdev
    Image
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Jun 5, 2023
    #WWDC23 🤷🏻‍♂️
    Image
    63K
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Jun 6, 2022
    Finally!!! I nominate this as the best new feature of #xcode14 #WWDC22 🤩
    Image
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Jun 7, 2023
    Many developers are sharing great tips on Twitter for #wwdc23 I've collected all my favorites. Check them out 👇
    170K
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Mar 8, 2022
    Tim for #Ukraine️ wearing a blue sweater and a yellow Apple Watch band during the #AppleEvent 🇺🇦 🙏🏻
    Image
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Feb 16, 2021
    Can the 1 user in this image please contact me? I have some questions 👋🏼
    Image
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Feb 5, 2020
    Oh yes, Xcode 11.4!! 🤩 "Simulator supports simulating remote push notifications, including background content fetch notifications." developer.apple.com/documentation/… #swiftlang #iosdev
    Image
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Dec 30, 2022
    I'm proud to announce we're now officially Mr. & Mrs. van der (Swift)Lee 😍💍
    Image
    Image
    Image
    Image
    67K
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Feb 6, 2020
    This really is a game-changer! It's so much easier to test push notifications now. Simply add a test payload.json in your repository and execute it from the terminal 🚀 #swiftlang #iosdev
    Image
    00:00
    Image
    user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Feb 5, 2020
    Oh yes, Xcode 11.4!! 🤩 "Simulator supports simulating remote push notifications, including background content fetch notifications." developer.apple.com/documentation/… #swiftlang #iosdev
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Apr 18, 2023
    I'm building iOS apps since 2009, worked on 10+ different large apps, and developed several personal apps. Here are 11 lessons I learned the hard way (so you don't have to) 👇
    143K
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Mar 27, 2022
    Last year, Bernie gave a perfect example. I followed up today, and Maaike said yes! 😍💍
    Image
    Image
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Feb 2, 2025
    You got to be kidding me, SwiftUI?!
    Image
    Image
    53K
  • user avatar
    Antoine v.d. SwiftLee 
    @twannl
    Oct 7, 2025
    By 2026, all App Store Connect accounts will still require you to sign in every hour. 🫠
    Image
    42K
Advertisement
Advertisement