
Engineering
SwiftUI Profiling with Instruments: 100,000 Calendar Events
A 100,000-event stress test sent us through SwiftData, SwiftUI layout, navigation caches, and a surprisingly expensive hover effect.
Maciej Szamowski6 min read

A 100,000-event stress test sent us through SwiftData, SwiftUI layout, navigation caches, and a surprisingly expensive hover effect.

The real fix for a stale SwiftUI macOS window combined an explicit color scheme, adaptive styles, and a safer NSVisualEffectView bridge in hora.