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SwiftLee Weekly

The Swift Concurrency Playbook

A FREE 5-day email course revealing the 5 biggest mistakes iOS developers make with async/await that lead to App Store rejections And migration projects taking months instead of days (even if you've been writing Swift for years)

5 lessons | 100% free | For iOS developers

RocketSim: An Essential Developer Tool
as recommended by Apple

Issue 246
Jan 23, 2026

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