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.

You should subscribe to my newsletter!

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

Microsoft Build 2026 recap Jun 10, 2026
I spoke (a lot) at Microsoft Build in San Francisco!
#events #work
A simple clustering algorithm for lists May 24, 2026
I nerd-sniped myself deeply when sorting baby toys and came up with a fun pattern for doing so!
#technical #learning
La Pedra Go Club in Barcelona May 18, 2026
I visited a decades-old Go club in Barcelona!
#events
Shipping todometer, version 3! May 2, 2026
I updated my app todometer after several years of it lying dormant, and it's better than ever!
#technical #project
Codemotion Madrid 2026 recap Apr 28, 2026
I spoke at Codemotion Madrid and had a blast!
#events

Subscribe with email or with RSS!

View posts by tag

#advice #personal #musings #events #recommendation #learning #work #meta #technical #project

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

View posts by tag

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