What problems does diffable data source solve, and what does it not solve?
Show where UIKit snapshot-based updates help and where state modeling still matters
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UIKit
Tag: UIKit
How do you debug a UICollectionView cell reuse bug that only appears during fast scrolling?
Turn a vague rendering issue into a disciplined diagnosis around state leakage, async work, and view configuration boundaries
What's the difference between frame and bounds in iOS?
Explain how `frame` and `bounds` describe the same view from two different coordinate systems, then connect that model to layout, transforms, and scrolling