Lunaria v0.2 is here! Bringing a completely reworked core with a new JS/TS configuration file, git data caching, integrations, brand-new Runtime API, and more. Already being used in production by Astro/Starlight, EmDash CMS (Cloudflare), and Biome. lunaria.dev/blog/lunaria...

Lunaria v0.2

lunaria.dev

Ecosystem performance meets Astro. @florian-lefebvre.dev is here to explain how the @e18e.dev project is making your favorite framework smaller and faster ⚡️

e18e x Astro | Astro Together FRA 2026 × Seibert

One dependency at a time, we can make the JavaScript ecosystem faster and leaner. But what exactly is e18e, and why should you care? Florian Lefebvre explores e18e, Astro’s role in the movement, the…

youtube.com

Added a new compact variant to the starlight-package-managers component. The same package manager tabs with a tighter layout ✨ github.com/HiDeoo/starl...

Want to know how (not) to wreck your site’s performance? @otterlord.dev has some tips to share:

How To Kill Your Performance (with Astro) | Astro Together FRA 2026 × Seibert

There are lots of weird ways you can get slowed down when developing with Astro. Reuben Tier is here to quiz you on your knowledge of the web, Astro, and their various performance caveats to keep you…

youtube.com

🎉 Introducing npmchart.com Analyze npm packages (downloads, releases), Github activity (releases, stars, commits, issues, PRs), compare packages, user pages, download or copy any charts, and more!

Another experiment: I wanted a new representation of my design tokens, so dtgraph draws them as a node graph. One node per token, one edge per reference. A few thousand tokens is hard to hold in your head. Much easier to look at. julien-deramond.github.io/dtgraph/

Huge release 🌟 And as a bonus, all my plugins now properly support the Sätteri Markdown processor. One last plugin couldn’t support it. Until today 🎉

Astro@astro.build · 3w ago

A riddle for you: how can one Starlight release contain both LESS JavaScript and MORE JavaScript? All is revealed in v0.42 ✨️ astro.build/blog/starlig...

CSS sibling-count() and sibling-index() are newly available across engines! Here's how they work:

I actually strive for perfect clarity with my color theme pickers. codepen.io/editor/chris...

Wrote a userscript that adds "AI" labels to users detected by agentscan.tools (by @matteogabriele.npmx.social)! Much needed hints to judge "contributions" these days. 👉 github.com/bluwy/github...

To target multiple classes with the same prefix, you'd typically have to resort to brittle attribute selectors. To make things easier, CSS is getting a new selector: the “Class Prefix Selector” (`.foo-*`). Check brm.us/class-prefix... to get the details. (Browser Support: None 😛 — just resolved!)

The Future of CSS: Target Multiple Classes with the Class Prefix Selector

To target multiple classes that share the same prefix, you'd typically have to resort to brittle attribute selectors or add extra base classes to your markup. To make things easier, CSS is getting a n...

brm.us

Still experimental, but I've been playing with a Starlight plugin to turn documentation pages into reviewed, discoverable, and up-to-date agent skills. The idea: keep your docs as the source of truth and avoid duplicated content and effort between docs and skills. starlight-to-skills.netlify.app

Starlight to Skills

Turn Starlight documentation pages into reviewed, discoverable, and up-to-date agent skills.

starlight-to-skills.netlify.app

Changesets v3 is here! 🦋 After months of chipping away at issues alongside @bluwy.me, @haglund.dev, and many other contributors, we’re excited to finally share it. changesets.dev/blog/announc...

Announcing Changesets v3 | Changesets

A tool to manage versioning and changelogs with a focus on monorepos

changesets.dev

astro-lilypond@0.16.1 now exports proper TypeScript types for Astro content collections, which should make it easier to access and display metadata from your `.ly` files 🎶

🌿 A new version of the Web Sustainability Guidelines is out! www.w3.org/TR/web-susta... Updates include: - Impact Measurement + Impact API - Lots of small tweaks following peer review - Improved tone of voice and readability, new introduction Changelog: github.com/w3c/sustaina...

@astro.build month-end blog post/newsletter drafted! If you're not subscribed, now's a good time: astro.build/newsletter/s... - Just a tiny taste to whet your appetite: handful of news items, monthly "Top 10". astro.build/rss.xml - The full 8-course meal! Put on your stretchy pants and dig in!

Signup | Astro

Astro builds fast content sites, powerful web applications, dynamic server APIs, and everything in-between.

astro.build

The smartest teams trust Starlight with their docs 🌟 Speed, accessibility, SEO, flexibility. Choose four. starlight.astro.build

Just shipped a new version of the Starlight Blog plugin 🌟 - Multiple blog instances - Built-in structured data - Monthly RSS archives with RFC 5005 support And a bunch of other improvements and bug fixes. github.com/HiDeoo/starl...

¡Crea la mejor documentación para tu API o proyecto! Se llama Starlight y trae: ✓ Velocidad. Está basado en Astro ✓ SEO, Accesibilidad, con buscador integrado ✓ Markdown, MDX y soporte para múltiples idiomas → starlight.astro.build/es

🧩 New open-source library: Component Anatomy Interactive anatomy docs for design systems. Get two-way hover sync between the rendered component and its docs. Framework-agnostic core, plus @astro.build & @storybook.js.org integrations. github.com/julien-deram...

Hi, friends. The last 6 years have been a blast, but I just don't like being on The Internet anymore. I'm leaving DevRel, and I wrote a little bit about why. Look after yourselves, and each other. Love, Salma

Goodbye, forever, probably.

I’m leaving developer relations and developer education. Rather than disappear completely unannounced, I wanted to tell you why.

whitep4nth3r.com

All my Starlight plugins, themes, and Astro integrations are now updated for this new version 🚀

Astro@astro.build · 3mo ago

Astro 7 is here! A new Rust compiler, a new Rust Markdown/MDX processor, Vite 8 and more. Get ready for 60%+ faster builds. astro.build/blog/astro-7/

The Starlight Links Validator plugin now has first-class support for Sätteri, with support for my other plugins coming in the next few days! github.com/HiDeoo/starl...

GitHub - HiDeoo/starlight-links-validator: Starlight plugin to validate internal links

Starlight plugin to validate internal links. Contribute to HiDeoo/starlight-links-validator development by creating an account on GitHub.

github.com

Astro@astro.build · 3mo ago

Introducing Sätteri — High-performance Markdown & MDX processing for the JavaScript ecosystem. satteri.bruits.org

Want those Astro 7 speed-ups in your docs? Starlight v0.41 is out now

It's finally out! It was a blast and I had a lot of fun :) If you have some time to spare, please listen to it. Props to @joshuakgoldberg.com

Software Engineering Daily@softwaredaily.bsky.social · 3mo ago

Emanuele Stoppa is the creator and lead maintainer of Biome. He joins @joshuakgoldberg.com to discuss JavaScript tooling, linting, formatting, Biome’s architecture, and the future of web development. softwareengineeringdaily.com/2026/06/18/b...

Say hello to 🐣 fledgling - a new tool to create new npm packages and setup/sync trusted publishing (OIDC) settings. Works great for one offs, but even better in a monorepo! just `npx fledgling`

That was fast 💨🤩 @lcas.dev has already submitted a new HTML proposal for Localized time formatting without JavaScript 👇 github.com/whatwg/html/... Couple of previous proposals related to this topic: - github.com/whatwg/html/... - github.com/whatwg/html/...

Localized time formatting without JavaScript · Issue #12591 · whatwg/html

What problem are you trying to solve? Server side rendered (or statically rendered) HTML does not know what the user’s timezone is. This means you can not server render absolute time correctly. To ...

github.com

Marina Aísa@marinaaisa.com · 3mo ago

⏱️ Day 2 👉 We discussed date formatting without JS: 🤔 Where to implement the solution? ShadowDOM using the `<time>` element or CSS with the content property or both? 🤔 What is the scope? should we render absolute or relative time? 🤔 Accessibility? text selection? ✍️ Notes: hackmd.io/IJgF2r1DSuyZ...

When it comes to fonts, I always trust @florian-lefebvre.dev. This looks amazing.

Florian Lefebvre@florian-lefebvre.dev · 3mo ago

Today I'm launching Leturgerð! Pick a font family, its properties and download it. Hook it up in your project and you're good to go. CLI + docs, works for any web project. Check it out: leturgero.web-runes.dev

Starlight v0.40 adds support for Astro’s new Rust-y Markdown pipeline. Speed up your docs builds with this one simple trick: github.com/withastro/st...

Watch out! Chrome has a huge bug with <input type="number"> which causes values to change unexpectedly. It's fixed in Chrome 150, but that won't land until the end of June.