Not only Swift

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To: Subscribers of Not only Swift
Date: September 10, 2026
Issue: 104
Re: iPhone Duo Developer First Look: Foldable SwiftUI & Agent Skills

Hi everyone!

I’m writing this intro as I’m sitting in my student dorm room at Aberystwyth University. No - I didn’t go back to school! I’m at iOSDevUK, the self-proclaimed “UK’s friendliest iOS development conference”, and I’ve got to admit, it is very nice to be here. Great community, great hosts, amazing views from the hill, and great content.

Not unexpectedly, a dominant topic at this conference is AI, and many talks are about how to use AI to build your iOS apps or how to use it in your apps. I ran a workshop about Agentic Development for Mobile Developers myself. It was a packed room, and apart from having lots of fun building an Apple keynote Bingo app using Antigravity, we had a lively discussion around the use of AI for software engineering and what it means for the future of our profession.

Speaking of the keynote: Apple introduced the iPhone Duo, their first foldable device, giving developers a brand new form factor to support. In this issue, I’ve included a roundup by Jordan Morgan on key developer good-to-knows, Artem Mirzabekian’s guide to building layouts with ArrangementView, plus Florian Schweizer’s updated SwiftUI agent skill to help your coding agents migrate and build for the new screen postures while you catch up on the sessions.

The use of AI seems to be pervasive in our industry, and while I personally enjoy being able to produce a lot more (and a lot more polished) software, I’m also mildly upset about another use of AI - for writing prose that is meant for human consumption.

I’ve included a couple of links in this issue which dive deeper into whether or not it’s a good idea to use AI for writing (spoiler: it’s not), and whether or not “humanizer” skills can fix this (spoiler: they can’t).

Don’t get me wrong - I am all for using AI, but it doesn’t relieve you from having to use your personal judgement and not losing the human element in everything we do.

Let me know what YOU think about this - hit reply or @-mention me on social media.

On a lighter note, someone made my dream come true and built a Swift version of strudel.cc - you can now program music using a Swift DSL. It doesn’t get any nerdier than that :-)

Cheers,

Peter

Swift

SwiftMusic: Declarative Music in Swift

by 1amageek

SwiftUI

Corner Concentricity in SwiftUI on iOS 26

by Natalia Panferova

iPhone Duo: First Developer Good-to-Knows

by Jordan Morgan

AI & Machine Learning

The Revolt of the Reader

by Bryan Cantrill

Humanizer: Remove Signs of AI Writing

by blader

Posthorse: Fresh Context, Same Journey

by fitchmultz

Hard Fork: The A.I. Mob That Attacked Hugging Face

by Hard Fork

FloWritesCode SwiftUI Skills (iPhone Duo)

by Florian Schweizer

Business & Strategy

How to Share What You Know (Without Becoming an Influencer)

by Andrea Colombo

Fun & Interesting