Swift tutorials, tips, and trickshttps://sundayswift.com/https://sundayswift.com/posts/building-symposium/https://sundayswift.com/posts/building-symposium/What happens when you take the human out of the agent loop. Building an autonomous issue-to-PR pipeline in Rust with MCP, fail-open design, and filesystem IPC.Fri, 20 Mar 2026 21:00:00 GMThttps://sundayswift.com/posts/preparing-ios-codebase-for-ai-agents/https://sundayswift.com/posts/preparing-ios-codebase-for-ai-agents/What I learned setting up a large-scale iOS codebase so that AI coding agents can work in it effectively, from hierarchical documentation to executable skills.Thu, 19 Mar 2026 21:00:00 GMThttps://sundayswift.com/posts/how-our-agents-test-their-own-ios-changes/https://sundayswift.com/posts/how-our-agents-test-their-own-ios-changes/How we built a skill that lets AI coding agents verify their own iOS changes on a real simulator, with video recording and accessibility auditing.Thu, 19 Mar 2026 19:00:00 GMThttps://sundayswift.com/posts/cli-friendly-ios-tooling/https://sundayswift.com/posts/cli-friendly-ios-tooling/Why wrapping your iOS build commands in a Makefile is the highest-leverage change you can make for AI coding agents.Thu, 19 Mar 2026 15:00:00 GMThttps://sundayswift.com/posts/xcode-previews-v2/https://sundayswift.com/posts/xcode-previews-v2/How I rewrote Claude-XcodePreviews in Swift and accidentally built a declaration-level dependency resolver.Wed, 04 Mar 2026 17:00:00 GMThttps://sundayswift.com/posts/building-canopy/https://sundayswift.com/posts/building-canopy/How building a native macOS GitHub notification client exposed surprising gaps in GitHub's public API and stress-tested Lists in a real app.Tue, 24 Feb 2026 22:00:00 GMThttps://sundayswift.com/posts/ios-worktrees/https://sundayswift.com/posts/ios-worktrees/How to set up an iOS project for git worktrees, including DerivedData isolation, SPM caching, simulator conflicts, and project file merge strategies.Mon, 16 Feb 2026 17:00:00 GMThttps://sundayswift.com/posts/building-a-high-performance-list-framework/https://sundayswift.com/posts/building-a-high-performance-list-framework/A deep dive into the design, performance, and trade-offs behind Lists, a pure-Swift replacement for UICollectionViewDiffableDataSource.Sat, 14 Feb 2026 17:00:00 GMThttps://sundayswift.com/posts/building-a-multi-agent-code-reviewer/https://sundayswift.com/posts/building-a-multi-agent-code-reviewer/What I learned building claude-deep-review, a code review skill that decomposes review into 15 specialized agents running in parallel.Fri, 13 Feb 2026 23:00:00 GMThttps://sundayswift.com/posts/orchestrating-ai-agents-with-claudio/https://sundayswift.com/posts/orchestrating-ai-agents-with-claudio/What I learned building Claudio, a tool that runs multiple AI coding agents simultaneously using git worktreesFri, 13 Feb 2026 21:00:00 GMThttps://sundayswift.com/posts/building-with-apple-on-device-models/https://sundayswift.com/posts/building-with-apple-on-device-models/What it's actually like to build a real tool on Apple's on-device FoundationModels framework — the 4,096 token ceiling, blind token budgeting, and everything in betweenFri, 13 Feb 2026 19:00:00 GMThttps://sundayswift.com/posts/teaching-ai-to-see-xcode-previews/https://sundayswift.com/posts/teaching-ai-to-see-xcode-previews/What I learned building a CLI toolset that captures SwiftUI previews programmatically, giving AI coding assistants a visual feedback loop.Fri, 13 Feb 2026 17:00:00 GMThttps://sundayswift.com/posts/swiftui-views-in-uiview/https://sundayswift.com/posts/swiftui-views-in-uiview/Directly add a SwiftUI View to your UIView without a UIHostingControllerMon, 15 Apr 2024 22:00:00 GMThttps://sundayswift.com/posts/easy-uikit-previews/https://sundayswift.com/posts/easy-uikit-previews/How to quickly generate a preview for your UIKit ViewMon, 01 May 2023 12:00:00 GMThttps://sundayswift.com/posts/cross-platform-size-aware-swiftui/https://sundayswift.com/posts/cross-platform-size-aware-swiftui/How to quickly extend cross-platform SwiftUI for macOS size classesFri, 07 Apr 2023 15:30:00 GMThttps://sundayswift.com/posts/generated-protocols/https://sundayswift.com/posts/generated-protocols/Often, we pass functions as stored arguments to an object. In this quick tip, we explore how we can still maintain `Hashable` and `Equatable` when we do so, without having to write it ourselves.Tue, 04 Apr 2023 03:30:00 GMThttps://sundayswift.com/posts/view-modifiers/https://sundayswift.com/posts/view-modifiers/How view modifiers work, tips & tricks for declaring our own, and nipping subtle bugs in the bud.Tue, 04 Apr 2023 03:00:00 GMThttps://sundayswift.com/posts/data-flow/https://sundayswift.com/posts/data-flow/With so many property wrappers for data flow and data binding in SwiftUI, it's easy to get confused about which one to use. Here, we'll learn about the differences between State, StateObject, Binding, and ObservedObject. We'll look at when to use each one, and the differences between them.Tue, 28 Mar 2023 03:00:00 GMThttps://sundayswift.com/posts/stacks-intro/https://sundayswift.com/posts/stacks-intro/An introduction to some of the most powerful tools in SwiftUI, stack viewsTue, 21 Mar 2023 03:00:00 GMThttps://sundayswift.com/posts/intro-to-swiftui/https://sundayswift.com/posts/intro-to-swiftui/What is SwiftUI, why should I use it, and what's the most basic building block?Mon, 20 Mar 2023 03:15:00 GMThttps://sundayswift.com/posts/just-use-a-button/https://sundayswift.com/posts/just-use-a-button/Get highlight styles for SwiftUI views in List, without using a NavigationLinkSun, 19 Mar 2023 22:00:00 GMThttps://sundayswift.com/posts/cross-import-overlays/https://sundayswift.com/posts/cross-import-overlays/How to use cross import overlays in your project, todaySun, 19 Mar 2023 12:00:00 GMThttps://sundayswift.com/posts/ui-views/https://sundayswift.com/posts/ui-views/Why I build `UIView`s, not `UITableViewCell`s.Sat, 18 Mar 2023 12:00:00 GMThttps://sundayswift.com/posts/swiftui-leaf/https://sundayswift.com/posts/swiftui-leaf/Integrating SwiftUI at the Leaf NodesFri, 17 Mar 2023 12:00:00 GMT