By the guy who brought you CodeMirror and ProseMirror: A new rich text editor called Wordgard! marijnhaverbeke.nl/blog/wordgar...

“i want App Router to get good!” yeah… good luck!

Spending way too much time shaping the flow of the text on mastrojs.github.io – on desktop 😅

Remember when we were reluctant to add an additional <div> only for the CSS? 😅 Good times.

are you still doing the awkward atob/btoa dance to convert to and from base64? you can stop it now, it's fully supported on modern environments and it can be polyfilled in here: github.com/ungap/base64...

Just got a ticket for @zurichjs.com 🥳 Looking forward to see some of you there!

Please repost so Ollie can find the right people!

Just removed the last remaining dependency from Mastro 🥳

explain your @ Minimal Astro JS

And some things that should not have been forgotten were lost. History became legend. Legend became myth. And for a decade, CSS knowledge was all but lost.

New version of our @standard.site publishing library just dropped! 🚀 Now with TIDs. The story, and and a call for community, in our updated blog post:

Nice to see more and more things once only the domain of imperative JavaScript moving into declarative CSS. Soon, tho most certainly not yet, ppl might notice you don't need a bundler or associated tooling when your script payload is negligible.

Blogged about the time I doubled our users by doing proper engineering instead of React slop www.mohkohn.co.uk/writing/html...

HTML Day 2026 ❇️ 2026.html.energy

Soon we can drop ts-blank-space from Mastro 🥳 Deno now also supports `import { stripTypeScriptTypes } from 'node:module'` – only Bun left that doesn't have this built-in. Mastro uses it to strip types from *.client.ts files for the browser: mastrojs.github.io/docs/install...

Just discovered that curl has a --json flag. Instead of: curl-X POST -H 'Content-Type: application/json' -d '{...}' ... you can write curl --json '{...}' ...

Fancy Bluesky buttons for everyone! No need to store @standard.site rkeys in your YAML frontmatter – just derive them from your existing URL paths.

Got something working! github.com/mastrojs/atp... While it works in practice (I do get the shiny button on Bluesky"), I just discovered that the schema validation says the document rkeys should be TIDs, although it doesn't seem to mention that on @standard.site? 🧐 I hope the schema is wrong… (1/2)

Working on packaging up the standard.site functionality in a little script. Similar in spirit to e.g. github.com/mastrojs/feed I think I've figured out a nice API based on deriving the rkey from URL slugs. Now need to validate it actually works 😅 Collaborators welcome!

We're joining the fun! Embedded below is our latest blog post with @standard.site metadata in the Atmosphere 🥳

How to do component-scoped CSS without a complex build step? I've written down four approaches. Which did I miss?

“there’s always been this unspoken trade-off: you want smooth, app-like transitions, you adopt a framework and a client-side router and a build step and a hydration strategy and suddenly you’re maintaining a small aircraft carrier” No more!

And @alistapart.com keeps the article online, under the same url 👌

What AI is doing to the jobs of programmers feels very familiar to a lot of us frontend developers – because it has happened to us before.

Continuing the front end reactivity series! I charted common reactivity strategies by their reactivity depth and talked about shallow vs deep reactivity. It's a fun deep dive- I hope you check it out! jschof.dev/posts/2026/5...

Dan will teach you React's way of thinking, whether you like it or not 😜 More seriously, his writing is great. And I always liked React's `UI = fn(state)`. But if you would like to learn the more fundamental `response = fn(request)`, check out mastrojs.github.io/guide/

🤯 TIL you can "crop" SVGs using fragment URLs. <img src="diagram.svg#svgView(viewBox(680,130,260,160))" />

If you have users with very granular permissions, need real-time collab, or have more data than fits into a git repo or browser GUI to search, then a git-based CMS is not for you. But content-modeling-wise, I haven't found anything I couldn't do with Sveltia. It's really an undervalued option! (1/3)

Always test your website in Safari and Firefox as well! Otherwise you may be forcing browsers to special-case your site (if it’s popular).

most of these github actions driven breaches are because of pull_request_target. here's some tips of what to look for when reviewing your own workflows. worth noting - it is safe, and necessary, when used correctly 🧵

wow, the icon size switcher is really smooth, with an animation. But it's actually just a link to a different page, with a view transition. MPAs ftw!

I'm sympathetic to this vision of a simpler web: dillo-browser.org/lab/web-fork/ Just like PDF/A is a subset of the PDF format for archiving of documents, HTML/A would be a subset of HTML without JavaScript etc. readable by simple browsers. @vale.rocks could even design a "HTML/A valid" badge!

One line of CSS. Perfectly responsive typography on every screen. font-size: clamp(1rem, 1vw, 1.75rem); 🪄 1rem minimum keeps text readable on phones 🪄 1vw makes it scale fluidly with the viewport 🪄 1.75rem caps it elegantly on large displays No media queries or breakpoints. Try it!

Uh, Cloudflare laying off 1100 emplyees (out of ~5000!) This sucks. Truly hope not too many of the great Astro folks are affected! Highlights the importance of lean open source frameworks like Mastro, that have little or no dependencies, and can be maintained by a tiny team!

Chrome dropping first-class support for ad blockers, AMP, and now this. We need browser engine competition!

We all hate img’s `sizes` attribute. It’s a workaround for: “A browser can’t know about the space an image will occupy in a layout because it makes decisions about image requests long before it has the information it needs to render that layout” But now there is <img loading=lazy sizes=auto 🥳

Repost if you agree, comment if you have a better name!

Good intro to compression dictionaries (ignore the throwaway sentences about agents). I’m looking forward to Phase 2 where Cloudflare handles most of the complexity for you.

If you’ve been looking for an iOS browser with a No-JavaScript button, look no further! daringfireball.net/linked/2026/...

text-indent: hanging; is in all browsers now! developer.mozilla.org/en-US/docs/W...

Think about it: React is the worst modern framework in terms of performance. Its only benefit was the ecosystem size; it's the default choice. You can always find what you need, and you can always hire for it. But if AI is writing the code anyway, those benefits fly out the window.

im an ai influencer btw: htmx.org/essays/yes-a...

No bundler! 💪🏻 developer.mozilla.org/en-US/blog/m...

Browser’s bfcache is criminally underused!

this is a great CSS read. blog.gitbutler.com/the-great-cs... not to mention syntax improvements; nested CSS, CSS vars and mixing colors, et al.

SPAs are actually good (for a very very limited number of use-cases)

Experienced teams are good at estimating the median of how long tasks will take, but it's a log-normal probability distribution. What you want to use for sprint planning (for tickets to average out) is probably the mean, which is 1.6x the median (i.e. 1.6x the estimate) in this distribution. (1/2)

honestly astonished that anyone still uses axios in 2026. fetch made it into all major browsers *nine years ago*. eleven if you don't count safari!

CSS nesting is now Baseline 🎉 Write nested selectors directly in CSS — just like Sass, but natively. .card { color: black; &:hover { color: blue; } .title { font-weight: bold; } } No preprocessor needed. Learn more 👇 developer.mozilla.org/en-US/docs/...

Ariel's post pushed me to finally finish "Why Mastro?" Does the more personal tone work? "Over the last decade, the JavaScript ecosystem has been moving to ever more complex frameworks and build systems. What prompted me to create Mastro is that a lot of that isn’t necessary anymore."