Not only Swift

I was looking for something entirely different when I came across this repository. And boy, am I glad I did. Add DebugSwift to your app and you can debug your app while it’s running - on the Simulator or on a physical device. It has a built-in network monitor, resource browser (files and databases), crash pad, and (!) UI inspector both for UIKit and SwiftUI. It can even track your app’s SwiftUI render passes.

What’s even more amazing than the feature set is that it seems to be completely underreported - I had never heard of this before. Did you?

If you’ve used Swift’s AsyncStream, you’ve probably run into the issue that it can only be consumed once. AsyncSharedStream solves this by allowing you to share a single asynchronous stream of values among multiple subscribers, similar to a multicast publisher in Combine. The list of requirements Michael had is impressive - from the namesake sharing feature to allowing consumption by Combine subscribers, to iOS 17+ support, and more. The code is available on GitHub as part of a collection of tools and utilities for Swift and SwiftUI development.

The SwiftUI team has been pretty outspoken about the fact that you should use small views. They’ve been saying it since the beginning (for example in the WWDC 2019 session “SwiftUI Essentials”: “Prefer smaller, single purpose views”), but it’s something that many of us have ignored.

In his article, Omar dives deeper into the reasons behind this, and how you can write performant SwiftUI code by decomposing your views into smaller, single-purpose views.

Oh, and because everything is a skill these days, you can use the SwiftUI Expert Skill Omar has been working on with Antoine van der Lee to teach your coding agent how to employ this technique as well.

If you know how to build SwiftUI apps, now you know how to build TUI apps. TUIkit provides a declarative, SwiftUI-like framework for building Terminal User Interfaces in pure Swift!

Also, doesn’t the site look just fabulous? Great attention to detail, Phranck!

Floating action buttons are a great UX pattern to highlight the primary action on a screen. Ryan Ashcraft open sourced a custom SwiftUI view that nicely integrates this into the tab bar. Fab name, fab view!

MCP CLI by Phil Schmid is a command-line interface for interacting with MCP servers. While that’s useful in itself, it’s the included Skill that really makes it shine. It gives AI agents full control over any MCP server without bloating the context window.

In the past couple of weeks, we’ve seen a plethora of agent skills for all sorts of tasks. They seem to work well, but what if you really want to find out if and how much they improve your workflow?

Daniela Petruzalek built Tenkai as a framework for running A/B tests and statistical analysis on agent configurations to measure true improvements.

Simon Willison dives into Moltbook, the “Facebook for AI agents,” exploring how it bootstraps itself using skills and the fascinating (and sometimes alarming) interactions happening between autonomous agents on the platform.

If “The Facebook for AI agents” didn’t sound scary enough, maybe “public exchange board for autonomous agents with access to their user’s API keys and other secrets” does.

Seems like the security issue has since been fixed, but this is a stark reminder of the risks associated with fast-shipping AI social experiments.

We used to live in London for a couple of years. When we returned to Germany and my children had to learn French in school, one of my kids complained about this being not very effective. When we then asked what they thought would be effective, they said, “Well, moving to France would be way more effective to learn the language in a more immersive way.”

Now, obviously, moving to all the countries that your kids need to learn the languages of sounds a little bit resource intensive. But the second best thing is to have an immersive conversation with a native speaker. My colleague Zack did a fantastic job of putting together an amazing application that is fun to use and even teaches you something about how to use the Gemini Live API.

My favorite challenge is the market bargaining. Give it a try and let me know what the best price was that you were able to negotiate. You can also find the source code on GitHub.

Generative AI is really good at crunching large amounts of data, so uploading your health data to a chatbot to see if there are any insights sounds like a fun experiment, and you might learn something about yourself, right?

Myoung Cha is here to explain why it’s actually not that easy, and why teams at Apple and other big companies have been working on this for years.

In the span of just a few months, we’ve gone from not using AI at all to talking to it in natural language to implement entire software systems for us.

So, why even ship code at all? Wouldn’t it be feasible to just ship specs and tests, and let AI generate the code? Drew Breunig released whenwords (source code on GitHub) as a proof of concept. It’s a relative time formatting library that contains no code—only specs and tests. The idea is that you paste the spec into an AI agent, and it generates the implementation for you in your language of choice.

I’ve tried it out and generated a Swift version using Gemini CLI, and it works indeed. The “installation” process is a bit slow, to be honest, since you’ll need to wait for your coding agent to implement the library from scratch. You might also want to consider the cost of generating the code again and again…

If you haven’t heard it by now, git worktrees are great. Here is yet another tool for making them easier to use.

I know, I know - yet another git worktree manager. I came across this literally 5 minutes after I had written about gt, and I found it quite amusing that there’s now a proliferation of tools for this.

As building apps becomes easier and easier, differentiating your app from the rest of the pack becomes increasingly important. Rene has curated a fantastic collection of small design details found in apps and sites that really make a difference in the user experience.

It’s a great source of inspiration for your next app.

If you’re in need of a font that is right at the intersection of SF Pro Rounded and Inter, Open Runde is a great choice. It’s a free and open source font that is perfect for a friendly and modern UI design.

Paul released a new skill for AI coding tools that helps you design better UIs. It includes curated patterns and anti-patterns across typography, color, layout, motion, and more. The source code is available on GitHub, if you’re looking for inspiration or want to contribute.