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Jan 26, 2026 • Issue #120

Skip Goes Open Source: A High-Stakes Bet from “Selling Tools” to “Selling Trust”

Skip Tools recently announced that it is now completely free and open-sourcing its core engine, skipstone. This means Sk...

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#119 Building AI Moats: Anthropic’s Crackdown and the Apple-Google Alliance

#118 An AT Life Isn't Necessarily Better Than an MT One

#117 2026: When AI Fades into the Workflow, Are You Ready?

#116 Swift, SwiftUI & SwiftData: A Mature 2025

#115 A Sunday Incident

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Jan 21, 2026 by Fatbobman

isolated(any) and #isolation: Letting Swift Closures Automatically Inherit Isolation

Swift 6 introduced many new features and keywords for concurrency. While many of these might be rarely used in daily development, encountering specific scenarios without understanding these new concepts can lead to hitting a wall, even with AI assistance. In this post, I will walk through a concurrency issue encountered during development testing to introduce how to utilize **`@isolated(any)`** and the **`#isolation`** macro. These tools enable function isolation inheritance, allowing the compiler to automatically infer the execution context of closures.

#Swift

Jan 14, 2026 Guest Post by Ronnie Wong

Surviving tvOS: An Engineering Log of an Atypical Media Player

tvOS is far more than just an enlarged iPad. This article is an engineering log of the Syncnext player, providing an in-depth analysis of real pitfalls in Apple TV development: from the Focus mechanism, harsh storage constraints, to SwiftUI workarounds and AVPlayer deep optimization, helping developers "survive" on the tvOS platform

#SwiftUI #tvOS

Jan 7, 2026 Guest Post by Andy Liu

Farewell to Portable Assembly: I've Been Running Swift on MCUs for Seven Years

Long before Apple’s official entry, Andy Liu and his MadMachine team spent years pioneering embedded Swift. Taking a unique path for complex development scenarios, they’ve built a perspective different from the mainstream. I invited Andy to share their journey—both as a historical record and a fresh outlook for the community.

#Swift #Dev Diary

Dec 22, 2025 Guest Post by Shili

The Indie Developer's Trial: Zipic's Productization Journey from 0 to 1

Building an indie product sounds easy, but you don't realize how deep the water is until you jump in. This is the true story of an indie developer turning a small workplace requirement into a flagship product. We follow the perspective of Zipic's creator, Shili, to review the journey from 0 to 1. This part focuses on product design and decision-making.

#Dev Diary

Dec 22, 2025 Guest Post by Shili

Escaping the Mac App Store: Building a Distribution and Sales System for Indie Apps from Scratch

The Mac App Store is simple to use, but it may not be suitable for all products. In this article, we follow the perspective of Zipic creator Shili to solve the distribution and sales problems of a macOS indie app.

#Dev Diary

Dec 22, 2025 Guest Post by Shili

Solving SwiftUI Pain Points and Performance Bottlenecks: Zipic Development Technical Retrospective

What other technical challenges exist in image compression software? This article is packed with hardcore, practical macOS development experience. From SwiftUI component adaptation to low-level Core Graphics applications, and from Raycast extension integration to PDF compression implementation, it not only solves performance bottlenecks but also pushes the native experience to the limit.

#Dev Diary #SwiftUI

Dec 17, 2025 Guest Post by Cai Yue

My Eight Years with CloudKit: From Open Source IceCream to Commercial Apps

CloudKit development guide: IceCream author Cai Yue shares 8-year journey covering core benefits, common pitfalls, production best practices, and real-world case studies from Music Mate and Setlists commercial apps.

#Dev Diary #CloudKit

Dec 10, 2025 Guest Post by Haozes

From YaoYao to Tooboo: watchOS Development Pitfalls and Practical Tips

Haozes, the developer behind YaoYao and Tooboo, shares practical insights from years of watchOS development. This article covers real-world issues like version mismatches between iOS and watchOS, WCSession communication, workout session recovery, memory leaks caused by nested TabView, and advanced battery optimization using TimelineSchedule. A must-read for anyone building high-performance Apple Watch apps.

#SwiftUI #watchOS