I'm Ryan. I build things with AI.

Currently building Star (YC S22), an AI game builder where anyone can create playable browser games from a description. Previously senior engineer at Google X (Loon), where I helped bring internet to remote parts of the world via stratospheric balloons. Before that, I studied CS at Mizzou and co-founded TigerHacks - still going strong.

I angel invest in founders I believe in, tinker with AI-driven science, and occasionally write about what I'm learning.

I love meeting builders and tinkerers. DM me on X or connect on LinkedIn.

Writing

Your Developer Experience Is Broken for AI Agents

I run a game platform where AI builds browser games. When we open-sourced our SDK, I tested it by spinning up 30 fresh AI agents and watching each one try to build a game. They broke in ways I never expected - and they kept breaking the same ways, independently. Here’s what I learned about developer experience when your user is an AI.

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Anyone Can Build in 2025

I was previously a senior software engineer at Google X (Loon), and now I’m a YC founder at Stella who builds software faster than ever, thanks to AI.

100% of my code is written with AI. I accomplish 10x more, way faster. AI prototypes entire products for me, fixes bugs while I’m meeting live with customers, and heck, I even used it to build a multiplayer fish simulation in one single instruction! At this point, I don’t think I could go back to the old way of building.

My goal with this post is simple:

To inspire you and show that anyone can build with AI - no matter your background.

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