I built a sample app for this post called Tour Merch. It’s an App Clip plus a parent app, both written in Swift 6 with strict concurrency on. The clip lets you buy a shirt at a Metallica show with Apple Pay; the parent app lets you see every shirt you’ve bought across the tour. The whole companion repo is at the end of this post if you want to clone and poke.
What I want to walk through is the stuff that matters once you sit down to build one of these: what App Clips are actually for, how invocation works, how the project is wired, where Apple Pay forces your hand under Swift 6, and how the clip hands off to the parent app without losing the receipt.
Wesley Matlock is a senior iOS engineering leader with a career long focus on building high quality systems across the Apple ecosystem, from launching early mobile apps at Overstock to architecting modern SwiftUI platforms and exploring spatial computing on visionOS. Currently at Frontier Airlines, he leads development of a greenfield SwiftUI application using The Composable Architecture (TCA). Alongside core product work, he has been increasingly focused on designing agentic AI systems and automation, where AI handles bounded tasks while developers retain intent and oversight.
His work emphasizes building testable, modular systems that scale safely in production, whether that is application architecture or AI augmented developer tooling. By modernizing CI/CD pipelines, workflows, and UX, he reduced deployment times by 70 percent and increased mobile bookings by 10 to 15 percent.
Throughout his career at companies like Nike, MLB, and Pluto TV, Wesley has specialized in architecture including scaling apps to millions of users using TCA, Redux and ReSwift, SwiftData, and modern concurrency. He focuses on performance by leveraging Instruments and MetricKit to maintain 99.9 percent crash free sessions. He works on agentic systems and automation by applying AI assisted and agent like workflows to developer tooling, CI/CD, and internal systems with human in the loop validation. He drives innovation by integrating HealthKit for biometric tracking and RealityKit for visionOS. He champions inclusion by increasing accessibility coverage from 40 percent to 85 percent at Pluto TV.
