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Stewart Lynch News
2026 - 4
Please pass on the subscription link to others in your sphere so I can broaden my reach.
https://stewartlynch.kit.com
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Recent Videos
Well, it has been a busy two weeks. In addition to my two weekly videos, I released two new video on Agentic Coding with Xcode 26.3 (still in developer beta as I write this newsletter).
Over the past two weeks, I released a two-part series on sharing SwiftData content between different users of the same app without using CloudKit or syncing. In Part 1, we build a clean JSON-based export system with a custom file type and proper handling of relationships. In Part 2, we complete the flow with the system share sheet, import logic, and safe reconstruction of relational data.
If you’ve ever needed true user-to-user data transfer with full ownership on import, this series walks you through a practical, file-based solution.
Part 1
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Part 2
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Agentic Coding with Xcode 26.3
Since the last newsletter, I also released two videos exploring how to integrate AI directly into your Xcode workflow for agentic coding. Whether you prefer Claude or ChatGPT, these tutorials show you how to use AI as a true coding partner—not just for generating snippets, but for understanding your codebase, refactoring existing code, and solving real development challenges without leaving your IDE.
In the first video, I demonstrate using Claude with Xcode, walking through the setup process and showcasing how Claude can help you write SwiftUI code, debug issues, and explain complex Swift concepts in context. The second video covers the same workflow using ChatGPT, giving you a side-by-side comparison so you can choose the tool that fits your development style.
Both videos include practical examples and real coding scenarios, so you can see exactly how agentic coding can streamline your iOS development process. If you've been curious about bringing AI into your daily workflow, these tutorials will get you up and running quickly.
With Claude using paid account.
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With ChatGPT and Codex (Free)
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Upcoming Videos.
Next week, I will be going back to my Foundations series to dive into a topic that I must admit, I did not fully understand myself. I hope this video will help clear up some of the confusion that I had around autoclousures.
The following week, I will be releasing the first of 3 videos on creating a resusable Network Manager class that will demonstrate best practices and can be dropped in to any iOS project.
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GitHub Directory Downloader
Ever found yourself wanting just one project folder from a large GitHub repository, only to be forced to download the entire thing? I ran into this problem constantly when working with repos like Paul Hudson's Swift on Sundays, where dozens of projects live in a single repository.
So I built a solution: GitHub Directory Downloader for Mac.
This simple app lets you download any specific directory from any GitHub repository—whether it's public or private. Just copy the folder URL, paste it into the app, and download exactly what you need. It remembers your download locations, keeps a history of what you've grabbed, and even supports branch selection.
Perfect for developers who want quick access to starter projects, code examples, or specific folders without the hassle of cloning entire repositories.
I have made this app available for free from my GUMROAD store where you will also find links to my other Mac apps.
https://stewartlynch.gumroad.com/l/GHDownloader
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Supporting my Work
IIf you enjoy what I do and want to support my work, you can join my Ko-fi community and either make a one-time donation or become a monthly supporter for as little as $5/month. Monthly supporters get early access to my videos as soon as they’re uploaded to YouTube (as unlisted videos), sometimes up to a month before they’re made public. Monthly supporters also get priority responses to their questions, and I’m happy to help with coding challenges.
In addition to PayPal, Ko-fi now supports Stripe, which makes it easier to pay by credit card.
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My Other Stuff
Channel Listing App
A Searchable Mac app containing a list of all of my YouTube videos including the ability to watch them in the app and download starter and completed source code
Free on Gumroad
SymbolBrowser App
Browse Apple's complete SF Symbols library from your menu bar. Search, preview effects, customize colors, generate SwiftUI/UIKit/AppKit code, and copy symbols as images — all without leaving your workflow.
Available on Gumroad: (Pay what you want)
GitHub Directory Downloader for Mac
This simple app lets you download any specific directory from any GitHub repository—whether it's public or private. Just copy the folder URL, paste it into the app, and download exactly what you need. It remembers your download locations, keeps a history of what you've grabbed, and even supports branch selection. Perfect for developers who want quick access to starter projects, code examples, or specific folders without the hassle of cloning entire repositories.
Available on Gumroad: (Pay what you want)
Smile4Me Course
The course is now Free to download from: https://stewartlynch.github.io/Smile4Me-Course-Content/
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Affiliate Links
BigMountain Studio Books
Mark Moeykens is a master at creating SwiftUI reference books. I have purchased every one of these books and refer to them all the time.
Use this link and we both will benefit
https://www.bigmountainstudio.com/a/77jt8
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