Cassidy Williams

Hi! I’m Cassidy, and I like to make memes and dreams and software.

I’m the Senior Director of Developer Advocacy at GitHub! Outside of that fancy title, I’m a startup advisor and investor, open source-er, and meme-maker on the internet. I enjoy building mechanical keyboards, playing music, hanging out with my family and friends, and teaching in my free time.

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Here's my most recent posts or read a random one!

Building Kakuro Zone Nov 14, 2026
I built a printable, mobile-friendly kakuro number logic game!
#technical #project
Writing to me with AI Nov 13, 2026
I'm getting a whole lot of generated messages lately, and I think we have to do better!
#musings
Hacking a new home screen for my Samsung TV Nov 8, 2026
I used Nathan Clark's CleanFrame project to make my 2021 Samsung TV work and feel better!
#technical #learning #project
Editing videos with Borumi, FFmpeg, and GitHub Copilot Nov 4, 2026
I generated 32 videos with just two recordings using the power of some really fun tooling!
#technical #project
GitHub Universe 2026 recap Nov 3, 2026
I spoke and worked at GitHub Universe 2026!
#events #work

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Here's my most recent posts or read a random one! var e=class extends HTMLElement{constructor(){super();function e(e){return e=e.split(`,`),`/post/${e[Math.floor(Math.random()*e.length)]}`}let t=this.dataset.posts,n=this.querySelector(`a`);n.href=e(t)}};customElements.define(`astro-link`,e);

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Here's my most recent posts or read a random one!