macOS Development You MUST use this skill for ANY macOS-specific development including windows, menus, sandboxing, distribution, AppKit bridging, and macOS SwiftUI differences. Quick Reference | Symptom / Task | Reference | |----------------|-----------| | Window management (WindowGroup, Window, MenuBarExtra) | See | | Menu bar, commands, keyboard shortcuts | See | | Table, Inspector, NavigationSplitView, focus | See | | App Sandbox, file access, security-scoped bookmarks | See | | Developer ID, notarization, Sparkle auto-updates | See | | NSViewRepresentable, NSHostingController, AppKit brid…