Software dev working at @stripe.
Joined August 2009
- Tweets 11,363
- Following 692
- Followers 361
- Likes 10,443
398 Photos and videos
Pinned Tweet
26 Nov 2019
Facebook have done some pretty cool things with their tentatively named "stylex" css-in-js library. I was curious about how it might work under-the-hood so I built my own version: github.com/CraigCav/css-zero
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Extremely fast and well done primitives. Trees and Diffs are used in Claude, Codex, OpenCode more
We had Alex and Amadeus from @pierrecomputer on the podcast.
The way they used pi autoresearch for performance was genius.
youtube.com/watch?v=5He3_Lin…
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Craig Cavalier retweeted
Apr 7
Some sick decks were at the $3k that didn’t quite make top 8 but deserve to be highlighted!
youtu.be/-jCPZ2XnMW0?si=IEQc…
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Craig Cavalier retweeted
🚨 GLC NEWS UPDATE 🚨
Dimension Valley will be banned in Gym Leader Challenge effective April 20th!
You can read more about it here: gymleaderchallenge.com/news/…
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Mar 27
On our way to @FullGripTCG and getting our first GLC game of the weekend while we wait for our flight!
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Craig Cavalier retweeted
Jan 23
In the next version of React Aria Components, you can use the `render` prop to customize the rendered DOM element. This also receives the component state, which makes it easy to drive animations.
ALT import {Button} from 'react-aria-components'; import {motion} from 'motion/react'; <Button render={(domProps, {isPressed}) => ( <motion.button {...domProps} animate={{scale: isPressed ? 0.9 : 1}} /> )}> Press me </Button>
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Craig Cavalier retweeted
23 Oct 2025
✍️ Solved by Modern CSS: Section Layout
A new interactive article about a typical section layout and exploring how to make it more dynamic with modern CSS. Happy reading!
ishadeed.com/article/modern-…
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(1/2) I've been using this "follow-the-leader" pattern with CSS anchor positioning quite a bit lately so I decided to write about how to do it!
The TLDR; is you dynamically update the anchor on an event/state, i.e:
.follower {
/* anchor */
position: fixed;
position-anchor: --hovered;
/* transition */
transition: top 0.5s ease;
/* position */
top: anchor(center);
left: anchor(right);
}
.possible-anchor:hover {
/* update the active anchor */
anchor-name: --hovered;
}
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Craig Cavalier retweeted
29 Aug 2025
If you never learned Big O notation in school (or even if you did), this post is a fantastic visual walk through.
The animations and interactive sliders really make the concepts clear.
samwho.dev/big-o/
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It’s here: the new registry MCP server 🚀
- Works with any registry (zero config)
- One command to add to your MCP client
- Smarter tools & better CLI integration
- Multi-registry support in a single project
- Built to work with your design systems
Take a look.
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Craig Cavalier retweeted
20 Aug 2025
🎒 WORLDS BACKPACK GIVEAWAY🎒
Time to end the post-worlds blues with a fun giveaway! 😁 Enter to win a worlds 2025 pokemon center backpack 2 boxes of FCBC sleeves!✌️
✅️ Like
✅️ Follow
✅️ Retweet
The winner will be chosen on August 29th! @FCBCArmor #PokemonTCG
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25 Jun 2025
Me: Charlie, please don't wake a sleeping baby!
7 y/o: Daddy, you can *only* wake a baby when they're asleep.
Me: 🤦♂️
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1 Jun 2025
We didn't make the top-cut, but we're still all smiles. Having a blast with @morsemakes at @FullGripTCG #GLC
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29 Apr 2025
The more I think about this, the more uncomfortable I am about the whole situation. Someone from @avis *called me* and behaved this way. They then tried to fraudulently add charges to my account in their anger. This person has access to my address. What else are they capable of?
28 Apr 2025
To add from this, someone from @avis just called me - as a response to my tweet - asked me to explain what happened - then, out of the blue, called me a liar and a "soft southern prick".
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28 Apr 2025
I'll reiterate this. Don't use @avis or @Budget. Literally the worst customer service I've ever received.
12 Apr 2025
I won't blink to never use @Avis or @budgetcar ever again. Budget charged me nearly $800 for a car that made it less than 50 miles before breaking down.
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Craig Cavalier retweeted
12 Apr 2025
I won't blink to never use @Avis or @budgetcar ever again. Budget charged me nearly $800 for a car that made it less than 50 miles before breaking down.
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31 Mar 2025
PSA: budget rentals are to be avoided. Rental car broke down and trying to organize roadside assistance with them has been a non stop nightmare.
Next time I'll just get Ubers everywhere!
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12 Apr 2025
I won't blink to never use @Avis or @budgetcar ever again. Budget charged me nearly $800 for a car that made it less than 50 miles before breaking down.
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5 Apr 2025
Falling asleep on the floor in your big brother's room, while enjoying a book from your favorite series. #SweetDreams
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