Xcode build optimization ensures both your clean and incremental builds remain performant. New Xcode versions or WWDC announcements introduce new best practices that you need to apply to ensure having the best build performance. While you might expect Xcode to apply new build settings automatically, the truth is you often have to enable them manually. …
The “One More Prompt” risk of agentic coding
Agentic coding has the risk of doing “One More Prompt” before finalizing. I’ve been using agents for a while now and found myself running into this trap a few times before I realized how to solve it. Agents make it so easy to fix things, that it’s tempting to increase the scope for no good …
Agentic Development: Multi-Project Challenges
Running multiple projects with Agentic Development is very common. I found myself creating GitHub issues for all the ideas I’ve had in the past, while I’m not running a prompt straight away. It’s fantastic for progression, but not always for success. It becomes mentally challenging, and it’s easy to find yourself lost in multiple projects …
A 9-Step Framework for Choosing the Right Agent Skill
Developers are increasingly faced with multiple options for the same task, which makes it harder to choose the right agent skill. More and more Agent Skills pop up, and they all have a great story on why you should use them. And honestly, most of the ones that I used worked great, but what if …
Using an MCP to perform product optimizations
A Model Context Protocol (MCP) can be invaluable when used properly, especially when talking about product optimizations. I’ve personally been playing around with it for a while now, and feel like I need to share my learnings due to the impact it has. In this case, I’ve been using it to optimize RocketSim. It didn’t …
VoiceOver Navigator & 120 FPS Recordings for Xcode’s Simulator
Test your app’s VoiceOver support using Xcode’s Simulator and create high-quality 120 FPS recordings. That’s what RocketSim’s major 15.0 release will bring, and it’s not all! We also created insights based on your networking sessions and we’re moving towards AI supportive insights. If you’re new to RocketSim, check it out here. It’s my developer tool …
Swift Testing Agent Skill: Write high quality tests with AI
Swift Testing is the standard for writing tests in Swift, but it’s not always applied correctly in agentic development. I’ve felt the pain myself while working more and more with agents, and decided to convert all my Swift Testing articles into a new agent skill. I also looked up latest best practices inside Apple’s documentation …
Core Data Agent Skill: Now available open-source
A Core Data Agent Skill for those who still write a lot of old-fashioned Core Data. While we can use SwiftData, my experience is that many projects still rely on the older framework. I’m one of those and have extensive knowledge on this framework, and even gave a talk on best practices. That’s why I …
SwiftUI Agent Skill: Build better views with AI
A SwiftUI Agent Skill that helps you build better views or refactor existing ones. It’s the reality we’re in today, and I honestly can’t live without it anymore myself. Several skills helped me improve the code quality produced by agents, and I’m happy to introduce you to a new open-source skill for SwiftUI. Before reading …
AI App Development: What I Learned in One Month
It was December 2025 when I started focusing on AI App Development. I started a new YouTube series, From App Idea to 10K MRR, found an app idea, and started building. While I used AI tools for a while, this was the first time I started using it for a new app seriously. It got …