I just presented “The Site Speed Frontier with Performance Lab and Beyond” at WordCamp US 2025 (#WCUS). Shortly before my talk, I published a companion blog post that has 10x the information I had time to share, and I've just added an embed of the livestream: weston.ruter.net/2025/08/27/the… #WCUS

Mark your calendars! 🗓️ The Google Chrome Built-in AI Challenge 2025 officially launches on September 9th. Create a web app or Chrome Extension using our built-in AI APIs and compete for up to $14,000. Need a spark? See last year's projects→ goo.gle/3UOm3eY

Just landed in WordPress trunk: scripts and script modules can be registered with a `fetchpriority` arg, and the Interactivity API script modules and comment-reply script use `low` by default. This can improve LCP by ~7% when the LCP element has an image: core.trac.wordpress.org/changeset/60704

A new wave of powerful UI features has arrived→ goo.gle/45NJpX1 From the Popover API in Baseline and new scroll-related CSS features to interactive hovercards, the latest updates represent a fundamental shift toward a more powerful and declarative web platform.

🚨 Breaking: npm author Qix compromised. Malicious package versions published in projects that typically see hundreds of millions of downloads each week. Details: socket.dev/blog/npm-autho…

This Week in Gemini CLI ✨ 4 newly released features: ⭐ Custom Command Upgrades - @{path} to process file content 🛡️ Security and Cloud Run Extensions - /security:analyze and /deploy 🧪 Experimental features - New edit/replace tool and prompt completion 🧠 Gemini 2.5 Flash

Your next project could be worth up to $14,000. The Google Chrome Built-in AI Challenge 2025 is your chance to win big by building a web app or Chrome Extension with our built-in AI APIs → goo.gle/ChromeAIChalle…

People talk about overfitting models to data but never overfitting prompts to models. So I wrote a new post: maxleiter.com/blog/rewrite-y…

Safari 26 is about to ship a bunch of CSS features I've been eagerly waiting for! 🥳 - Anchor positioning - Scroll-driven animations - text-wrap: pretty Also cool to see contrast-color() land! webkit.org/blog/17333/web…

Need to summarize text without sending user data to a server? With built-in AI in Chrome, you can use browser-managed models like Gemini Nano and the Summarizer API directly on the client-side for enhanced privacy and performance→ goo.gle/41Hf8Ip

Want a faster Gemini CLI that's smarter with your quota? We're rolling out an experimental Intelligent Model Routing feature. It saves you time and quota by sending simple queries to Flash & complex ones to Pro. How to try it: - Install the preview: npm install -g

Announcing our public preview of Chrome DevTools MCP! Experience the full power of DevTools in your AI coding agent → goo.gle/4pDE6Tk With Chrome DevTools MCP, your AI agent can run performance traces, inspect the DOM, & perform real-time debugging of your web pages.

Been at GitHub for nearly 13 years and I'm pretty sure this request is more than 10 years old... 🆕Comment on unchanged lines in any file inside a Pull Request is now available Gotta keep the core of GitHub getting better every day. 🫡

This week Jules is getting upgrades to handle more complex tasks. One I've been loving: storing API keys + tokens safely, so I can connect to other tools and Jules can build more robust software for me.

Make Stitch designs real with AI Studio From design to a live app in under 60 seconds. Here's how you can now take your Stitch designs and make them real with Google AI Studio: 1. Design in Stitch. 2. Export the HTML. 3. Prompt AI Studio to convert it into a working app. And

Jules just cd-ed into your terminal. 🤖 Introducing Jules Tools, a new lightweight command line interface that lets you do everything you can do in the browser, available now in your terminal. You can get it via npm install -g @google/jules Get the details in the blog →

Finally, we got PHP in JavaScript!

Pro tip: skip the gemini command! 🤯 Forget typing gemini before asking a question? This Bash helper function automatically detects a multi-word question in your terminal and opens the interactive Gemini CLI with your prompt. Instant answers, zero friction. ✨💨 #GeminiCLI