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24 posts

Symposium: Agents That Start Themselves

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.

Preparing Your 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.

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.

Give Your Agents a Makefile

Why wrapping your iOS build commands in a Makefile is the highest-leverage change you can make for AI coding agents.

Building a Mini Linker for SwiftUI Previews

How I rewrote Claude-XcodePreviews in Swift and accidentally built a declaration-level dependency resolver.

Building Canopy: A Native GitHub Inbox and a Testbed for Lists

How building a native macOS GitHub notification client exposed surprising gaps in GitHub's public API and stress-tested Lists in a real app.

Git Worktrees for iOS: A Practical Setup Guide

How to set up an iOS project for git worktrees, including DerivedData isolation, SPM caching, simulator conflicts, and project file merge strategies.

Building Lists: A High-Performance Diffable Data Source Framework

A deep dive into the design, performance, and trade-offs behind Lists, a pure-Swift replacement for UICollectionViewDiffableDataSource.

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.

Orchestrating AI Agents with Claudio: Lessons from Parallelizing Claude Code

What I learned building Claudio, a tool that runs multiple AI coding agents simultaneously using git worktrees

Shipping a CLI on FoundationModels

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 between

Teaching AI to See SwiftUI Previews

What I learned building a CLI toolset that captures SwiftUI previews programmatically, giving AI coding assistants a visual feedback loop.

Using SwiftUI Views in UIViews

Directly add a SwiftUI View to your UIView without a UIHostingController

Generating SwiftUI Previews for UIKit

How to quickly generate a preview for your UIKit View

Cross-Platform Size-Aware SwiftUI

How to quickly extend cross-platform SwiftUI for macOS size classes

Generating Hashable and Equatable for functions

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.

View Modifiers

How view modifiers work, tips & tricks for declaring our own, and nipping subtle bugs in the bud.

Data Flow Property Wrappers

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.

Stacks on Stacks

An introduction to some of the most powerful tools in SwiftUI, stack views

An Intro to SwiftUI

What is SwiftUI, why should I use it, and what's the most basic building block?

Just Use A Button

Get highlight styles for SwiftUI views in List, without using a NavigationLink

Using Cross Import Overlays to Improve Your Libraries

How to use cross import overlays in your project, today

Build views, not cells

Why I build `UIView`s, not `UITableViewCell`s.

Integrating SwiftUI in Leaf Nodes of your iOS Application

Integrating SwiftUI at the Leaf Nodes