Improving site performance by shipping more CSS
A look at how a design system shipped major changes without breaking the world.
Agents can now set up your website’s security with Turnstile Spin
Misconfiguring Turnstile by skipping backend validation leaves sites exposed to bots. Turnstile Spin fixes incomplete setups by using your preferred AI coding agent to wire up server-side verification.
Trading a Cloud Identity for Your Own: Workload Attestation on Managed Compute
How Cloudflare addressed a cross-tenant data exposure vulnerability in Containers
External security researchers at Accomplish identified a vulnerability in Cloudflare Containers that could expose residual disk data from previous workloads. We explain how the issue worked, how we investigated it, and the steps we took to remediate it.
When chat is the wrong UI
What is a developer to do when they need something more tangible than a chat box? Enter canvases.
AI-powered fuzzing with the GitHub Security Lab Taskflow Agent
In this blog post, I explain how to use the new fuzzing taskflow based on the GitHub Security Lab Taskflow Agent AI framework.
You Own the Outcome: Product Engineering in the Age of AI
Agents are great at producing code. The valuable work left for you is deciding what should exist, how it should behave, and what you're willing to trade for it.
Bringing Private Processing to Meta AI Glasses
We believe glasses are the best form factor for having AI help throughout your day. They can understand your personal context better than other kinds of devices and keep you present without picking up a mobile phone. Most of the time, glasses are helping you see well, protecting your eyes and complementing your look, and [...] Read More... The post Bringing Private Processing to Meta AI Glasses ap
The Vercel Bug Bounty Program is now publicly available
How Klaviyo shipped 356 internal apps in two weeks on Vercel
What Dropbox has learned from deploying AI at company scale
Learnings from deploying AI at company scale, and what organizations need to consider as they move from AI adoption to broader transformation.
Developers want more efficient software. Here’s what over 1000 GitHub users told us they need.
New research from GitHub and Yale Program on Climate Change Communication finds strong demand for tools, measurement, and practical guidance that can help developers reduce wasted compute.
Rendering huge pull requests in the GitHub Copilot app
How we rebuilt the diff surface in the GitHub Copilot app to open a million-line pull request with hundreds of inline review comments.
We just shipped support for the ugliest part of HTTP: Vary
Vary support is now available in Cache Rules on every plan. You can normalize known negotiation headers, pass exact values through to the origin when those small differences matter, or bypass cache when the variation is too unpredictable.
Introducing Worker Previews: isolated preview environments for every change your agent makes
Worker Previews gives every branch its own URL, configuration, state, and observability, so you and your agents can test changes in parallel without affecting production.
Python Workers are now generally available
Python Workers allow developers to run Python web frameworks and AI orchestration libraries natively in the Cloudflare Workers runtime. You can seamlessly integrate with Cloudflare's ecosystem including D1, R2, and Workers AI without writing any JavaScript glue code.
Introducing Our New Dropbox API Documentation
Learn about the newly launched version of the Dropbox API documentation and its modern design and features.
Open-Sourcing Rebalancer: A Generic, High-Performance Library for Solving Assignment Problems
We’re open-sourcing Rebalancer, the assignment-problem solver that has been used to solve resource allocation problems throughout Meta for over nine years. Rebalancer separates several related concerns: how to specify an assignment problem, how to store it efficiently in memory, how to solve it, and how to debug it. This separation of concerns is crucial to [...] Read More... The post Open-Sourcin
Inside Petal: Building the World’s First Petabit-Class Transoceanic Subsea Cable
Petal, the next step in Meta’s subsea innovation, will be the first subsea cable to deliver petabit capacity at transoceanic distances, connecting France and the United States over approximately 7,000 km (4,300 mi). Expected to enter service in 2029, it will be the first subsea cable system to deploy multi-core fiber technology at scale, doubling [...] Read More... The post Inside Petal: Building
Notes on discrete-time Fourier series and transform
The following are my notes on discrete-time Fourier series (DTFS), as well as the discrete-time Fourier transform (DTFT). These topics serve as an important theoretical underpinning to the digital processing of signals by computers using the DFT (which will be covered in a future post). For discrete-time signals, we use …
Saving another 100TB of RAM with math (and Rust)
Cloudflare's global network is immense but not limitless. As we look for small ways to trim our resource usage, we sometimes get lucky and we can cut significantly more. Here’s how we reduced one of our Pingora-based service's RAM usage with statistics.
Should you read the code, is RAG dead, and did Skills kill MCP?
We dive into these questions and other AI hot takes on the latest episode of the GitHub Podcast.
Leave the Class Path in the Rearview Mirror
How I Vibed a Proof of Conway’s Conjecture
You can just prove things, apparently.
