Tomas

Sonnet 5.5 high and extra high are my favourites now for active collaboration work. The speed/quality balance is very good. Opus might be better but not by much, and is slower.

Wow this is pretty clever en.wikipedia.org/wiki/Cache_s...

Forgot how good this video is

Unironically added this to a prompt before: “how would @danabra.mov write this code?” It works 😅

A good reminder. Any process that can be done with old school mechanical static deterministic code instead of LLMs should be done like that.

This is the most important video I've ever made. In this, I explore the negative and positive mental health effects of AI coding, with data and expert commentary. www.youtube.com/watch?v=iPUn...

I’m exploring the mental health effects of AI coding. This is a super quick (blazing fast), anonymous survey. Please fill out and share so that the responses will be well rounded. forms.gle/dpD8Tk1QnXAz...

Indeed, so always write it as simple for the reader to understand. Or you know, for yourself in 2 weeks.

🤯

The Cure were really onto something when they thought of JavaScript in 1979

Wow this is really nice. It’s a feature I’ve been missing that I used at my first programming job where they used SVN lol.

Massive props to @lubach.nl (Dutch TV) for speaking out against X, recommending @bsky.app and Mastodon. youtube.com/watch?v=u4hH...

If everyone uses a release cooldown, do comprised packages get noticed in time? Or is it like the joke you hear during a safari: “you don’t need to outrun the lion, you just need to outrun your friend”? nesbitt.io/2026/03/04/p...

The topic of skills atrophy has been running through my mind quite a bit. Delegating cognitive tasks to an AI system could mean over time you lose some of those abilities yourself. Similarly to how you need to keep training a muscle or a sport: use it or lose it. But is this always bad per se?

Yesterday I had my iPhone battery replaced after some years. I had forgotten what a great feeling it is to only have to charge once per day. It lessens the desire to replace this 13 pro, which is otherwise working perfectly fine still 👌

Wow and remember the io js drama?

I have always been the kind of developer who only cared about outcomes. Give me the tool, the framework, the head start. I just want my website. A totally different kind of developer exists who cares about the *craft*. Getting that function just right. Those devs are in pain right now.

Due to technical limitations there can't be two usb 3 ports. Awkward, but fine. But then the placement is a bit counter intuitive. When both ports are in use, it's probably most likely the port more to the back of the device is used for charging, keeping the faster port occupied.

Scraping bots are getting good. They can pass CloudFlare challenges. We’ve been fighting a 40k “random” ip botnet for a couple of days now. CF does mark them as “somewhat odd” with a lower bot score though. That helps.

Official Agent Skills are now available for React Router github.com/remix-run/ag...

"Collision detection using style queries plus keyframes" by lee codepen.io/leemeyer/pen...

Can’t wait to try it out! 👌

👀 Future of JS This underrated upcoming JS feature is super useful 🔥 Soon, you should be able to import JS code as a string! This is super useful, in particular for docs sites! Similar to Webpack raw loader, asset query ?raw etc, but available everywhere natively!

React Server Components: do they improve performance or make it worse? If your answer is “I’ve no idea 😅,” I wrote a deep-dive to answer that! Experiments and real numbers, CSR vs SSR vs RSC, same app + test setup. Focus: initial load + data fetching. www.developerway.com/posts/react-...

Wow I’m shocked.. I’ve watched so many hours of videos of him explaining chess with so much passion and expertise. I was literally watching one tonight. This is an extremely sad loss for the chess community.

Firefox now supports view transitions, the command and commandfor HTML attributes, and the moveBefore() method. www.firefox.com/en-US/firefo...

Go take the State of JavaScript 2025 survey if you have a minute! survey.devographics.com/survey/state...

Every React hook has multiple levels of understanding a dev has to go through to get to most out of them. Hopefully at some point I fully understand Reacts concurrent rendering gotchas.

Having this exact same problem. In the Mac dock I'm trying to keep them far away from each other

About the React useEffect bug and the CloudFlare outage.. Of course devs just need to learn their tools, RTFM and understand the libs/frameworks they're using. But what's also true is that framework APIs should be designed in such a way that they're intuitive to use and hard to accidentally abuse.

Can't believe what I'm reading. Accidentally DDoS yourself because you fetch in useEffect in 2025 is so avoidable 😂 blog.cloudflare.com/deep-dive-in...

We’ve launched MDN’s new front end — and it’s just the beginning. Intentionally targeting Baseline "Widely available" features when deciding on which ones to use. This means we're able to adopt modern CSS and web components for our UI. Check it out 👇 developer.mozilla.org/en-US/blog/...

I edited my Cross-Site Request Forgery countermeasures research into a stand-alone article, including recommendations reusable by other projects. tl;dr: no need for tokens or keys, modern browsers tell you if a request is cross-origin! words.filippo.io/csrf

I’m a little bit obsessed with hydration errors in React. To prevent them the typical advice is to use useEffect when using browser apis like localStorage. But useSyncExternalStore is so much more powerful! When (re)mounting a component, it skips the getServerSnapshot 💡 saves a useless render.

Saw @ThePrimeTime's video (youtu.be/ciNXbR5wvhU?...) & comments around HTTP cache & sharing across origins. Resources have long been isolated due to partitioning (2020+ in Chrome, longer in other browsers). Spreading knowledge is hard 😳: developer.chrome.com/blog/http-ca... #webperf #webdev

Together with Claude Code I'm migrating my site from react-router (with pre-prendering for SSG) to Astro. I first let CC read some Astro docs, then prompted to create a project requirement plan for the migration in several steps. This generally works great for CC. The time estimation is funny.

“The reason SPAs became the default wasn’t because they were better. It was because, for a while, they were the only way to deliver something that felt fluid – something that didn’t flash white between pages or jank the scroll position.” www.jonoalderson.com/conjecture/i...

One of the most powerful tools in my toolbox is SVG. When combined with CSS and JavaScript, we can do some truly remarkable things. ✨ 📝 I’ve just published a brand-new blog post that covers the most critical fundamentals. It’s chock full of interactive demos. 😄 Check it out: