Peter Friese
@peterfriese.dev
Developer Advocate on the Firebase team @ Google YouTube: https://www.youtube.com/@PeterFriese Blog: https://peterfriese.dev
When Wi-Fi dies, you're back in the age of dinosaurs. 🦖 Fun fact: my desk was next to Edward Jung's at Google in 2014 when he created the Chrome Dino! The Jumping Dino team shares the story behind its 270M+ plays. go.peterfriese.dev/fun-chrome-...
Chrome Dinosaur Game History: Who Made It?
Who created the Chrome Dinosaur Game? Meet Sebastien Gabriel, Alan Bettes, and Edward Jung, Project Bolan, the 2014 launch, and 270M monthly plays.
thejumpingdino.com
Is software engineering obsolete in the AI era? Joseph Heck explains why architectural rigor, testing, and solid fundamentals matter more than ever when orchestrating AI coding agents. go.peterfriese.dev/ai-software...
Software Engineering fundamentals matter more than ever
The manifestation of my imposter syndrome, for me and today, is what does it mean to be a software engineer. There’s a lot more noise than signal on the Internet about agentic engineering, wh…
rhonabwy.com
AI coding agents struggle with Liquid Glass due to a lack of training data. Florian Schweizer built Cursor agent skills to teach models to write clean Liquid Glass code instead of faking it with blurs. go.peterfriese.dev/swiftui-fwc...
GitHub - FloWritesCode/fwc-swiftui-skills: Cursor Agent Skills for modern SwiftUI development
Cursor Agent Skills for modern SwiftUI development - FloWritesCode/fwc-swiftui-skills
github.com
Worried about runaway cloud bills? Google Cloud spend caps now work with Firebase! Unlike simple alerts, spend caps actually pause supported services once a cap is reached. Jeff Huleatt explains. go.peterfriese.dev/firebase-cl...
Google Cloud's new spend caps work with Firebase
Jeff Huleatt's blog
jhuleatt.com
Apple's on-device models offer private inference, but have limits. In my latest post, learn how to build a hybrid AI router with Dynamic Profiles to route between local models and Gemini: go.peterfriese.dev/what-i-am-w...
Not only Swift - Issue #101
In Issue #101: Hybrid AI with Apple Foundation Models and Gemini, demystifying SwiftUI ContentBuilder, Google Cloud spend caps for Firebase, Agent Plugins, software engineering rigor with AI, and the origin of Chrome Dino.
peterfriese.dev
ContentBuilder isn't just for SwiftUI views! Artem Novichkov shows how to use ContentBuilder with non-View types to build a type-safe deep-link router, and backdeploy it to iOS 17. go.peterfriese.dev/swiftui-usi...
Using SwiftUI’s ContentBuilder with Non-View Types
Using SwiftUI’s result builder to assemble a type-safe deep-link router.
artemnovichkov.com
Tired of duplicate skills across AI agents? Agent Plugins 1.0.0 is an open standard from Google, Amazon, and Microsoft to package skills and MCP servers into portable plugins. Kevin Hou explains: go.peterfriese.dev/ai-agent-pl...
Google for Developers Blog - News about Web, Mobile, AI and Cloud
go.peterfriese.dev
Ever wondered how SwiftUI's ContentBuilder speeds up type-checking? Fatbobman explains how it works under the hood, why decoupling construction from validation prevents timeouts, and shares benchmarks. go.peterfriese.dev/swiftui-con...
ContentBuilder Explained - The Secret Behind SwiftUI's Type-Checking Speedup
Deep dive into SwiftUI's ContentBuilder. Learn how decoupling construction and validation improves compiler type-checking performance, backed by benchmarks.
fatbobman.com
Issue #101 of Not only Swift is out! 🗞️ In this issue: • SwiftUI ContentBuilder explained • Using ContentBuilder with non-View types • Google Cloud spend caps for Firebase • Agent Plugins open standard • Hybrid AI with Apple Foundation Models & Gemini peterfriese.dev/newsletter/...
Not only Swift - Issue #101
In Issue #101: Hybrid AI with Apple Foundation Models and Gemini, demystifying SwiftUI ContentBuilder, Google Cloud spend caps for Firebase, Agent Plugins, software engineering rigor with AI, and the origin of Chrome Dino.
peterfriese.dev
On-device AI is great until prompts hit context limits. I built a hybrid router using local inference for light tasks and falling back to cloud models (Gemini) for heavy ones—all powered by Apple's Dynamic Profiles: peterfriese.dev/blog/2026/h...
🗞️ The 3 most-read developer articles this week on Not Only Swift: 🥇 Using AI while exercising your critical thinking 🔗 go.peterfriese.dev/ai-using-ai...
Using AI while exercising your critical thinking
It doesn't matter how capable a lab claims a latest model is, every single AI model suffers from the same problems of regularly jumping to conclusions, forgetting instructions, and hallucating information.
swiftrocks.com
I updated my list of upcoming iOS, Swift, and AI conferences for 2026 and 2027, including open CFPs. go.peterfriese.dev/conferences...
Last week, I asked 'Is AI ruining our skills?' This week, Bruno Rocha shows us how to use critical thinking when coding with LLMs. go.peterfriese.dev/ai-using-ai...
Using AI while exercising your critical thinking
It doesn't matter how capable a lab claims a latest model is, every single AI model suffers from the same problems of regularly jumping to conclusions, forgetting instructions, and hallucating information.
swiftrocks.com
This is not as small as a Babelfish, but still very impressive: A standalone voice translator using a Raspberry Pi 5 running Gemma 4 completely offline. Complete with a cute 3D-printed case go.peterfriese.dev/ai-gemma-tr...
Google Antigravity (@antigravity) on X
Meet Gemma Translator: a completely offline, DIY translation device powered by Gemma 4 and built with Antigravity. 🧵
x.com
Lost the joy of coding, because of AI? You're not alone. Tibor Bödecs wrote a great reflection on how LLMs and vibe-coding are changing developer motivation, and why maintaining code quality with agents gets frustrating when raw speed isn't enough. go.peterfriese.dev/ai-swift-ai...
Swift, AI, and the future of software development - The.Swift.Dev.
A brief look at the current state of Swift, AI, LLMs, vibe-coding, and the future of software development.
theswiftdev.com
The iPhone fold is coming - are your toolbars ready for it? Natalia Panferova breaks down how to build adaptive toolbars in SwiftUI for iOS 27 using visibilityPriority and toolbarMinimizationBehavior. go.peterfriese.dev/swiftui-ada...
Adaptive SwiftUI toolbars in iOS 27
Control which SwiftUI toolbar actions stay visible, move commands into overflow, pin an important item and configure navigation bar minimization with the new iOS 27 APIs.
nilcoalescing.com
Ship code while you lift? 💪 Donny Wals set up an automated CI/CD pipeline for AI coding agents that runs tests and uploads TestFlight builds while he's literally working out. Here's how it works: go.peterfriese.dev/tools-setti...
Setting up a delivery pipeline for your agentic iOS projects – Donny Wals
A while back, my app crashed mid-workout at the gym. I uploaded the crash report, gave my AI agent some context, and went back to my set. By the time I finished, there was a pull request waiting for…
donnywals.com
When should you use `@unchecked Sendable`? Antoine van der Lee explains why you should consider other options first. go.peterfriese.dev/swift-senda...
Sendable and @Sendable closures explained with code examples
The Sendable protocol and @Sendable attribute help to eliminate data races and create thread-safety in Swift Concurrency.
avanderlee.com
Why do some USB-C cables charge fast, while others can't even pass display data?!? WhatCable tells you why. go.peterfriese.dev/tools-whatc...
WhatCable: Know what your USB-C cable can really do
Why is my MacBook charging slowly? WhatCable shows USB-C cable speed, charging power, and e-marker data in plain English. Featured in The Verge, ZDNet, and 9to5Mac.
whatcable.uk
It's time to celebrate! Issue #100 of Not only Swift just went live! 🎉 peterfriese.dev/newsletter/...
🗞️ The 3 most-read developer articles in the past week on Not Only Swift: 🥇 How MiniSwift Works 🔗 go.peterfriese.dev/swift-how-m...
What Happens When You Hit Run — MiniSwift Blog
You type Swift, press Run, and a moment later it's executing — in a browser tab, with no Xcode and no Apple toolchain. Here's the whole journey from your source code to a running program, explained without the PhD.
miniswift.run
📜 Did you know ELIZA (1966) was actually an interpreter running a script? Finding Eliza built an incredible interactive site exploring Joseph Weizenbaum's original source code and the DOCTOR script! #TechHistory #AI #ComputerHistory #Chatbots go.peterfriese.dev/history-the...
The first chatbot · ELIZA (1966)
A Critical Code Studies reading of ELIZA, Joseph Weizenbaum’s 1966 chatbot, built on the original source recovered from the MIT archive.
findingeliza.org
🎯 Need a clean reference for WWDC 2026 announcements? Blishtan organized everything that was announced at WWDC into topic-by-topic breakdowns—from Siri & App Intents to System APIs! #WWDC26 #iOSDev #Swift #Apple go.peterfriese.dev/swift-whats...
🧠 Is AI assistance eroding our core developer skills? @sciam highlights early research on skill degradation with automated tools. A great reminder to stay mindful and keep critical thinking sharp when coding! #AI #DeveloperLife #SoftwareEngineering go.peterfriese.dev/ai-is-ai-ru...
Is AI ruining our skills? Early results are in—and they’re not good
Reliance on artificial-intelligence tools degrades the abilities of physicians and software engineers, studies show
scientificamerican.com
📐 Want your SwiftUI bottom sheets to size perfectly to their content? @danielsaidi shows how to set up presentation detents to dynamically fit content height without hardcoded sizes. #SwiftUI #iOSDev #Swift go.peterfriese.dev/swiftui-mak...
Making a SwiftUI sheet automatically size to fit its content
An iOS sheet defaults to covering around half the screen, and while you can specify custom detents, it’s not enough. This article shows y...
danielsaidi.com
🛠️ DynamicProfile is one of the hidden gems in Apple's Foundation Models framework! Itsuki shows how to use lifecycle hooks like onToolCall and onResponse to handle user permissions and agentic flows. #AppleIntelligence #AI #Swift #iOSDev go.peterfriese.dev/ai-swift-ho...
Swift: Hooks for Foundation Models. A Little Cleaner Way!
Human-in-the-Loop, asking for approval, logging! Without writing / posting any notifications ourselves.
medium.com
🤖 Why write code like an animal? @migueldeicaza's AgenticSwift lets you annotate function declarations with an @ai macro to generate function implementations at compile time! Brilliant or leg-pulling? #Swift #SwiftMacros #AI #iOSDev go.peterfriese.dev/ai-agentics...
GitHub - migueldeicaza/AgenticSwift: Tired of having to write Swift code like an animal? Let the AI macro do the work for you.
Tired of having to write Swift code like an animal? Let the AI macro do the work for you. - migueldeicaza/AgenticSwift
github.com
🌐 Ever considered running Swift directly in your browser? @toprakrun built MiniSwift to compile Swift to WebAssembly, complete with a browser IDE and interactive playground embeds for tutorials! #Swift #WebAssembly #Wasm #WebDev go.peterfriese.dev/swift-how-m...
What Happens When You Hit Run — MiniSwift Blog
You type Swift, press Run, and a moment later it's executing — in a browser tab, with no Xcode and no Apple toolchain. Here's the whole journey from your source code to a running program, explained without the PhD.
miniswift.run
⚡ Big change in Xcode 27: @State is now a Swift macro! @ns_vasilev breaks down what's happening under the hood and highlights an important caveat with lazy initialization. #SwiftUI #iOSDev #Swift #Xcode27 go.peterfriese.dev/swiftui-sta...
SwiftUI: @State is a macro | nsvasilev.com
With Xcode 27, SwiftUI @State transitioned from a property wrapper to a Swift macro. Discover how this under-the-hood rewrite fixes long-standing initialization bugs, manages nodes in the Attribute Graph, leverages DynamicProperty injection, and changes how view invalidation actually works.
nsvasilev.com
📱 Not only Swift #99 is here! 🎉 In this issue, we compile Swift in the browser with MiniSwift, explore @State as a macro in Xcode 27, generate function bodies at compile time with @ai macros, and revisit ELIZA 60 years later. #Swift #iOSDev #SwiftUI #WebAssembly #AI peterfriese.dev/newsletter/...
Not only Swift - Issue #99
In Issue #99, we compile Swift in the browser with MiniSwift, dissect the new @State macro in Xcode 27, generate function bodies at compile-time with @ai macros, and revisit ELIZA 60 years later.
peterfriese.dev