Claude Mythos is GA!... Kinda. www.anthropic.com/news/claude-... They just announced Fable 5, a "Mythos class" model. It scores 80.3% on SWE bench vs Opus' 69.2%... The catch is that it's 2x the cost of Opus 5.8.

This week I joined Stord as the Senior Engineering Manager of their AI team! I wrote a "Working with Me" for my team & thought it'd be fun to share with the rest of you as well: playfulprogramming.com/posts/workin... I'm excited to join the team and scale us to the next level! To the future! 🥂

@dashlane.com, I was one of the customers who received a "someone attempted a login" email. Frankly, I find the lack of official comms deeply upsetting and will likely be the reason I change password managers after the incident resolves. No site banner, no socials. Unacceptable.

In @npmx.dev you can now view a package's changelogs currently only package's that use Github to host their releases or changelog.md are supported but support for others are planned

Finally! A way to pass Chrome debugging to any tooling, not just Antigravity. Can't wait to see its integration with tools like OpenCode: developer.chrome.com/docs/devtool...

I know/understand the ecosystem's qualms with Chrome's prompt API Today they introduced the WebMCP experiment which, on first glance, makes me think that this could serve as a more model agnostic prompt API support; offloading LLM to browser itself Seems neat developer.chrome.com/docs/ai/webmcp

Ooooh what, contrast-color() is newly available across browsers?!: https://webstatus.dev/features/contrast-color

In many of my comms about the TanStack attack, I mentioned a list we published to keep us accountable. But I only realized that this was removed between the draft I saw and the public publication. We'll have this all in a blog post very soon, but 🧵 on what we're fixing

Earlier May 11th, many TanStack Router/Start packages were compromised, but quickly mitigated. Here is a full post mortem on the incident: tanstack.com/blog/npm-sup...

We at TanStack just had a major attack against our Router packages. We have a postmortem out now explaining what happened and how we mitigated the response: tanstack.com/blog/npm-sup... No other TanStack packages outside of the Router monorepo were impacted

[email protected] Form now supports Preact natively; no React compatibility mode needed! I'm grateful to @jovidecroock.com — one of the Preact maintainers — for helping create this port! tanstack.com/form/latest/...

I wrote about everything I've felt, feared, and experienced about using AI for code over the last few years, and my opinions on where we stand. It's the most personal thing I've ever written. And I'm putting it out there to share with all of you. blog.isquaredsoftware.com/2026/05/ai-t...

I wanted to give you all a sneak peak of TanStack Form v2. Luca, one of our maintainers, has been working hard on a complete rewrite of the package using new architecture patterns. Minimal breaking changes in userland, insane performance gains. Here's v2 rendering 10,000 fields with validation.

TanStack Form has hit 2M weekly installs!

Vue support in TanStack Form is going to get much better when Vue 3.6 drops. We just had a major blocker fixed through a merge upstream by @fuzzyma.bsky.social Excited for this one!

Your web prayers, answered. Coming soon. Amen.

Also, THIS happened!! 🤯

The most upvoted feature of TanStack Form is formally in development: github.com/TanStack/for... Yes, Form Groups are well on their way! I'm hoping to move quick on this one, but transparently our TODO list is a mile long to get this stable. Stay tuned!

Welp, that's a first... While setting up CI for a Bazel project, I found a bug with one of the packages I'm using when combined with PNPM 11. github.com/aspect-build... Was tricky to nail down... But at least the issue isn't because of my misconfiguration for once haha

At the "setup CI" part of a new project with new tools I haven't used yet. I'm sure I'll get it sometime in the next 500 commits 🙃

Had a delightful conversation with @neciudan.dev about my story, open source, engineering leadership, and more! Check it out:

This is a pretty measured review of forms solutions in React and overall is a great read - check it out 😄

@vicflix.dev 👋 Hey! I have some thoughts/questions about this page: reglejs.dev/introduction... But also wanted to say "hi" since I've only just ran into your library and adore meeting others in the Form space. Game to DM and/or find some time for a coffee chat? 😄

I often find communication tactics lacking between engineers at organization. To help, I documented how I approach communications in team scenarios.

I once asked for a double-promotion in title alone, not fully understanding the consequences of doing so. Here's my story of how, once I got my wish, my recruiter inbound messages died entirely:

✂️ Knip v6.0.0-0 is out A new chapter has begun. 👇

Astro 6 is here! We completely rebuilt the Astro dev server and build pipeline onto a new, more powerful runtime-agnostic architecture. Plus: New Fonts API, CSP support, an experimental new Rust compiler, and more... astro.build/blog/astro-6...

Mark my words in a few weeks, cssdaily will be the new game every webdev will be playing. Great work @tekgadgt.dev

Friends, are we seriously taking tech news from THIS source? C'mon.

Having managed a few software engineering teams now, I have some thoughts on in-person vs remote:

Whoa. Android 17 is including a new API for passing application state between devices, similar to Apple's Continuity features. Excited to see how this will integrate into Android Desktop et al

Incredibly hyped to announce Schema Benchmarks, a project I've been steadily working on in collaboration with @fabianhiller.com! It aims to provide a central and transparent resource for many of the metrics that matter for schemas, including bundle size and runtime performance 😄

Hire @ladybluenotes.dev! She's been a major force in both SolidJS & TanStack. Her capabilities are out in the open for everyone to see. And if that weren't enough, she's got a solid professional closed-source history backing that work. Seriously, the time I've spent working w/ her has been a joy!

POV you work on large-scale OSS projects and made a single patch release:

Seems like Windows isn't the only place that ARM still feels underbaked from community support. - No Google Chrome Linux ARM64 - Docker Desktop still looks for QEMU AMD64, so that doesn't work - Ghostty doesn't work under Parallels due to OpenGL issues

@tanstack.com Form just hit 1M downloads a week on NPM! 🤯 So grateful to have such a strong community response to a project I work on. Thank you!

During the evaluation process for our hosting provider, I asked a peer of mine what options he thought I should use given our requirements. Without hesitation "Fly" came to his mind; I had to chuckle because we were already well down that path. Their support is deeply appreciated.

Also featured in that video: This weird ass expression I made Thanks for sharing THAT @jason.energy - is this retribution for all the bad jokes I made that weekend? 😂

This is mentioned in a the thread, but this joint effort means that we now have nearly ONE AND A HALF MILLION WORDS on our website today 🤯 I cannot begin to express how excited I am to work together more closely with @santoshyadav.dev, Lars, and the rest of the TiL team. Here's to the future! 🥂

@dev.to if we change an organizations' username, does it redirect links to the old org username?

Welp... This is annoying I used some tricks to extract the NPU + Win drivers from a @frame.work, then Copilot + Opus to reverse engineer the ability to apply those drivers to my GPD Win Max 2.. But it doesn't have the features I thought it had (background replacement), so I did all of this for not

I've been using @coderabbitai.bsky.social on a few OSS projects for some time, and it's awesome what it's able to catch. Can't wait to bring that pipeline to our momentum at @playfulprogramming.com. 🏎️ I'm also deeply grateful for their support of our efforts. 🙏

PINNED COMMENTS ON ISSUES ARE HERE github.blog/changelog/20...

Excited to be part of the GitHub Stars program for 2026 again! 🚀

Angular 21.2 will bring support for arrow functions in templates; a massive improvement for TanStack Form users! github.com/angular/angu... Can't wait to change over our docs to show this.

There's many kinds of engineering personality. IE: Some prefer moving quickly, while others want consistency in their output As an engineering manager, it's critical to figure out how to balance these types of reports and work alongside them in their own way: playfulprogramming.com/posts/tradeo...

TIL, Chrome 144 ships some new pseudo-classes. 👏 Within limits, you can now style the matching strings of the "find in page" search. ::search-text { // matching strings } ::search-text:current { // currently matched string } More on the blog. 👇 www.stefanjudis.com/today-i-lear...

Just hit 1,000 followers on GitHub! Check it out for yourself: github.com/crutchcorn/ How exciting, thank you for joining me for my developer journey!

TIL there's ongoing work to add a native virtual file system (VFS) to Node.js!! Yes please!!! 😱🤩 github.com/nodejs/node/... @nodeland.dev you are a hero!

Exciting news—Clack v1.0 is here! 🎉 🫳 Dropped CJS distribution (the only breaking change) 🆕 Added autocomplete, taskLog, and more 🌏 Localization support 🐞 Dozens of bug fixes + performance improvements 🤗 Ecosystem alignment This release marks stable support for our current APIs