Workflow lab: AI image tooling and interactive prototyping in Figma
A workflow to try—bringing together precise image editing, Vectorize, and interactive prototypes to move from concept to crit to completion faster.
From idea to pull request: A practical guide to building with GitHub Copilot CLI
A hands-on guide to using GitHub Copilot CLI to move from intent to reviewable changes, and how that work flows naturally into your IDE and GitHub.
2,000 robots walk into a shop: Simulated A/B testing (2026) - Shopify
No traffic? No problem. SimGym sends hundreds of AI shoppers through your store to simulate A/B tests. A Shopify and NVIDIA collaboration.
Keeping community human while scaling with agents
Learn how Vercel scales community support with AI agents. We automated logistics to reclaim human focus, empowering our team to solve complex problems
Using LLMs to amplify human labeling and improve Dash search relevance
How we train Dash's search ranking models with a mix of human and LLM-assisted labeling.
Building frontend UIs with Codex and Figma
With Codex to Figma, teams can bring real, running interfaces into Figma to explore, refine, and make decisions together, then bring it back to Codex with design context intact.
What’s new with GitHub Copilot coding agent
GitHub Copilot coding agent now includes a model picker, self-review, built-in security scanning, custom agents, and CLI handoff. Here’s what’s new and how to use it.
Say Cheese! Meet SmashingConf Amsterdam 🇳🇱 — Smashing Magazine
Meet our brand new conference for designers and UI engineers who love the web. That’s [SmashingConf Amsterdam](https://smashingconf.com/amsterdam-2026), taking place in the legendary Pathé Tuschinski, on April 13–16, 2026.
New to the web platform in February
Discover some of the interesting features that have landed in stable and beta web browsers during February 2026.
An Exploit ... in CSS?!
Read an explanation of the recent CVE-2026-2441 vulnerability that was labeled a "CSS exploit" that "allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page."
A Complete Guide to Bookmarklets
Browsers don't just let you bookmark web pages. You can also bookmark JavaScript, allowing you to do so much more than merely save pages.
The generative recommender behind Shopify's commerce engine (2026) - Shopify
From raw event sequences to real-time predictions: what it took to build and ship a generative recommender at commerce scale.
How OpenEvidence built a healthcare AI that physicians actually trust
How we rebuilt Next.js with AI in one week
One engineer used AI to rebuild Next.js on Vite in a week. vinext builds up to 4x faster, produces 57% smaller bundles, and deploys to Cloudflare Workers with a single command.
Create your PostgreSQL clusters with the "builtin" C collation!
Read my plea for using the C collation when you create a PostgreSQL database cluster, ideally using the "builtin" collation provider.
Multi-agent workflows often fail. Here’s how to engineer ones that don’t.
Most multi-agent workflow failures come down to missing structure, not model capability. Learn the three engineering patterns that make agent systems reliable.
Building Semantic Search on my Content
I've added some pretty cool AI-powered features to kentcdodds.com and I want to tell you all about it.
Helping YOU ask ME questions with AI
Here's how I've made it easier for you to call into the Call Kent podcast without having to record yourself and also make yourself anonymous using AI.
RCCLX: Innovating GPU Communications on AMD Platforms
We are open-sourcing the initial version of RCCLX – an enhanced version of RCCL that we developed and tested on Meta’s internal workloads. RCCLX is fully integrated with Torchcomms and aims to empower researchers and developers to accelerate innovation, regardless of their chosen backend. Communication patterns for AI models are constantly evolving, as are hardware […]
Security boundaries in agentic architectures
A framework for drawing security boundaries in agentic architectures. Most agents run with zero isolation between the agent and the code it generates. Learn where to draw the boundaries, from secret injection to full application sandboxing.
Cloudflare One is the first SASE offering modern post-quantum encryption across the full platform
We’ve upgraded Cloudflare One to support post-quantum encryption by implementing the latest IETF drafts for hybrid ML-KEM into our Cloudflare IPsec product. This extends post-quantum encryption across all major Cloudflare One on-ramps and off-ramps.
PostgreSQL Books
CYBERTEC regularly publishes PostgreSQL books. Keep up-to-date and get an introduction to important new database features of each version.
Sprites on the Web
In game development, it’s common to use spritesheets for animation, but this technique isn’t as widely used on the web these days. Which is a shame, because we can do some pretty cool stuff with sprites! In this post, we’ll share the niche CSS function you can use to leverage this technique, and explore some of the potential use cases.
A Designer’s Guide To Eco-Friendly Interfaces — Smashing Magazine
Every high-resolution hero image, autoplay video, and complex JavaScript animation carries a cost. Sustainable UX challenges the era of “unlimited pixels” and reframes performance as responsibility. In 2026, truly sophisticated design is defined not by how much it adds, but by how thoughtfully it reduces its footprint.
Cloudflare outage on February 20, 2026
Cloudflare suffered a service outage on February 20, 2026. A subset of customers who use Cloudflare’s Bring Your Own IP (BYOIP) service saw their routes to the Internet withdrawn via Border Gateway Protocol (BGP).
Code Mode: give agents an entire API in 1,000 tokens
The Cloudflare API has over 2,500 endpoints. Exposing each one as an MCP tool would consume over 2 million tokens. With Code Mode, we collapsed all of it into two tools and roughly 1,000 tokens of context.
How I used Cursor to Migrate Frameworks
I upgraded kentcdodds.com from Remix v2 to React Router v7 in a day with over 17k lines of code changed. Here's how I did it.
Host Leadership
How AI is reshaping developer choice (and Octoverse data proves it)
AI is rewiring developer preferences through convenience loops. Octoverse 2025 reveals how AI compatibility is becoming the new standard for technology choice.
Redefining impact as a data scientist
Not all impactful data science work involves experiments or optimization. Sometimes it’s about making complex systems legible, correct, and safe to operate.
What to expect for open source in 2026
Let’s dig into the 2025’s open source data on GitHub to see what we can learn about the future.
Notes on clarifying man pages
Designing A Streak System: The UX And Psychology Of Streaks — Smashing Magazine
What makes streaks so powerful and addictive? To design them well, you need to understand how they align with human psychology. Victor Ayomipo breaks down the UX and design principles behind effective streak systems.
The future of design is code and canvas
For the best ideas to move forward, we need the power of code and the canvas. Claude Code to Figma is just one way we’re giving builders more choice.
From Claude Code to Figma: Turning production code into editable Figma designs
Now you can take workflows that start in Claude Code even further in Figma.
Agentic Email
Securing the AI software supply chain: Security results across 67 open source projects
Learn how The GitHub Secure Open Source Fund helped 67 critical AI‑stack projects accelerate fixes, strengthen ecosystems, and advance open source resilience.
How Ramp kept 100% uptime through 100x traffic surges on Vercel
How Stably ships AI testing agents in hours, not weeks
Shedding old code with ecdysis: graceful restarts for Rust services at Cloudflare
ecdysis is a Rust library enabling zero-downtime upgrades for network services. After five years protecting millions of connections at Cloudflare, it’s now open source.
What’s !important #5: Lazy-loading iframes, Repeating corner-shape Backgrounds, and More
This issue of What’s !important is dedicated to our friends in the UK, who are currently experiencing a very miserable 43-day rain streak. Presenting: the five most interesting things to read about CSS from the last couple of weeks. Plus, the latest features from Chrome 145, and anything else you might’ve missed. TL;DR: lots of content, but also lots of rain.
Automate repository tasks with GitHub Agentic Workflows
Discover GitHub Agentic Workflows, now in technical preview. Build automations using coding agents in GitHub Actions to handle triage, documentation, code quality, and more.
Building Digital Trust: An Empathy-Centred UX Framework For Mental Health Apps — Smashing Magazine
Designing for mental health means designing for vulnerability. Empathy-Centred UX becomes not a “nice to have” but a fundamental design requirement. Here’s a practical framework for building trust-first mental health products.
Making a Responsive Pyramidal Grid With Modern CSS
This is the second part of a small two-part series. In this article, we will explore another type of grid: a pyramidal one. We are still working with hexagon shapes, but a different organization of the elements., while exploring other different shapes.
Welcome to the Eternal September of open source. Here’s what we plan to do for maintainers.
Open source is hitting an “Eternal September.” As contribution friction drops, maintainers are adapting with new trust signals, triage approaches, and community-led solutions.
Approximating contrast-color() With Other CSS Features
The new contrast-color() function is not fully supported yet. But can we still implement it in a cross-browser friendly way using other new CSS features?
How low-bit inference enables efficient AI
Making products like Dropbox Dash accessible to individuals and businesses means tackling new challenges around efficiency and resource use.
GitHub availability report: January 2026
In January, we experienced two incidents that resulted in degraded performance across GitHub services.
The Death of Traditional Testing: Agentic Development Broke a 50-Year-Old Field, JiTTesting Can Revive It
WHAT IT IS The rise of agentic software development means code is being written, reviewed, and shipped faster than ever before across the entire industry. It also means that testing frameworks need to evolve for this rapidly changing landscape. Faster development demands faster testing that can catch bugs as they land in a codebase, without […]
Designing For Agentic AI: Practical UX Patterns For Control, Consent, And Accountability — Smashing Magazine
Autonomy is an output of a technical system. Trustworthiness is an output of a design process. Here are concrete design patterns, operational frameworks, and organizational practices for building agentic systems that are not only powerful but also transparent, controllable, and trustworthy.
Why demand for designers is on the rise
Our latest study suggests that AI is driving renewed momentum in design hiring. We unpack why that is, what hiring managers prioritize, and which skills designers need to get ahead.
Trying to Make the Perfect Pie Chart in CSS
Can we make pie chart that's semantic, with flexible markup, and avoids using a JavaScript library? Here's how I tackled it.
Building Prometheus: How Backend Aggregation Enables Gigawatt-Scale AI Clusters
We’re sharing details of the role backend aggregation (BAG) plays in building Meta’s gigawatt-scale AI clusters like Prometheus. BAG allows us to seamlessly connect thousands of GPUs across multiple data centers and regions. Our BAG implementation is connecting two different network fabrics – Disaggregated Schedule Fabric (DSF) and Non-Scheduled Fabric (NSF). Once it’s complete our AI […] Read Mor
How we built AEO tracking for coding agents
Learn how we built an AI Engine Optimization system to track coding agents using Vercel Sandbox, AI Gateway, and Workflows for isolated execution.
Anyone can build agents, but it takes a platform to run them
Why competitive advantage in AI comes from the platform you deploy agents on, not the agents themselves.
Why I joined OpenAI
2025 Q4 DDoS threat report: A record-setting 31.4 Tbps attack caps a year of massive DDoS assaults
The number of DDoS attacks more than doubled in 2025. The network layer is under particular threat as hyper-volumetric attacks grew 700%.
Continuous AI in practice: What developers can automate today with agentic CI
Think of Continuous AI as background agents that operate in your repository for tasks that require reasoning.
CSS @scope: An Alternative To Naming Conventions And Heavy Abstractions — Smashing Magazine
Prescriptive class name conventions are no longer enough to keep CSS maintainable in a world of increasingly complex interfaces. Can the new `@scope` rule finally give developers the confidence to write CSS that can keep up with modern front ends?
The Vercel AI Accelerator is back with $6m in credits
A six-week program to help you scale your AI company offering over $6M in credits from Vercel, v0, AWS, and leading AI platforms