Cassidy Williams

I’m really grateful to work at a place like GitHub where accessiblity is really taken seriously.

It depends!

I was emceeing RenderATL last week!

I recently got an Xteink and it is a really cute little e-reader device!

There’s some new default whitespace handling in the latest version of Astro!

I saw a cool text effect on Nikhil’s blog recently, where the big “Hello!”

I almost burned out recently.

I attended and spoke at KeyCon 2026!

I spoke at Microsoft Build last week!

I’ve been experimenting with a human-friendly way to cluster list values using reversals of sub-lists.

When I was off on vacation in Spain a few weeks ago (I’m still in denial that I’m back), I went to La Pedra (“The Stone” in Catalan), which is the oldest Go club in Barcelona!

If you haven’t seen it yet, one of my open source projects that I’ve been “maintaining” for a while is called todometer.

Last week, I had the pleasure of speaking at Codemotion Madrid!

I’ve been using an Elgato Stream Deck to control my lights in my office for the past several years.

I gave the opening keynote at Deep Dish Swift 2026 today!

I just got home from South Korea, where I taught some workshops at an event hosted by the U.S.

My sister got me a rainbow cardigan sweater a couple years ago for Christmas that is very fluffy and floppy.

I talked about building my Micro Journal in the past here, and how much I like having a distraction-free writing device for blogging, drafting things, and just getting ideas out.

I recently updated my app todometer to be styled with pure, native CSS!

My poor Sony a6100 camera (with a Sigma 30mm lens) died on me this week.

I found this old article about making wavy lines with CSS, and decided to play around with it!

I’ve been asked a couple times just this week how passkeys work, here’s a little rundown!

I’ve always loved making videos.

When it comes to certain projects, I like “doing things that don’t scale.”, particularly with my newsletter.

I stumbled upon the CSS property corner-shape recently and it’s pretty cool.

I switch back and forth between Windows and Mac pretty regularly depending on what I’m working on (and sometimes between WSL and PowerShell on the same machine, what a time to be alive), and one thing that I always mess up in PowerShell on Windows is maki…

I have been getting a lot of newsletter responses, DMs, and emails in general saying that people have discovered my work not via traditional SEO, but via LLMs and AI tools like ChatGPT, Claude, Perplexity, and even GitHub Copilot.

I made a game called Code Wave for the recently completed GitHub Game Off 2025!

My mom taught art appreciation when I was growing up, and I love looking at different artists’ works over time and remembering what I was taught as a kid, and seeing things through a different lens as an adult.

In case you missed it, I have a little AI Manifesto here on this blog.

I gave a short talk today to some students at Haverford College and Bryn Mawr College about AI, a career in tech, networking, and getting jobs in general!

Wow. 2025 is done.

It’s been a hectic, busy month, truly so so busy, but I blogged every day for Blogvent!

It’s Blogvent, day 23, where I blog daily in December!

It’s Blogvent, day 22 where I blog daily in December!

It’s Blogvent, day 21, where I blog daily in December!

It’s Blogvent, day 20, where I blog daily in December!

It’s Blogvent, day 19, where I blog daily in December!

It’s Blogvent, day 18, where I blog daily in December!

It’s Blogvent, day 17, where I blog daily in December!

It’s Blogvent, day 16, where I blog daily in December!

It’s Blogvent, day 15, where I blog daily in December!

It’s Blogvent, day 14, where I blog daily in December!

It’s Blogvent, day 13, where I blog daily in December!

It’s Blogvent, day 12, where I blog daily in December!

It’s Blogvent, day 11, where I blog daily in December!

It’s Blogvent, day 10, where I blog daily in December!

It’s Blogvent, day 9, where I blog daily in December!

It’s Blogvent, day 8, where I blog daily in December!

It’s Blogvent, day 7, where I blog daily in December!