Hi, I'm Sean 👋Software Engineer · US tech company

SEAN YOO

AI & Automation Enthusiast.
Build, automate, ship — repeat.

Apps, web, automation, content — I build and run all of it with AI, and only write down what actually holds up. No coding background needed to follow along.

View projects Free resources

sean — claude code

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↑ a real working session usually looks like this

// projects

Projects

Built end to end with AI workflows, from planning to launch. Every screen you see is the real product.

Launched this year01

vyrio.ai

Web · AI short-form studio

A web studio that turns links, photos, and clips into branded short-form video. Reels from production to publishing — no film crew, no editor.

Launched last year02

Atlanta Cocktail Directory

Web · Local directory

A directory for finding Atlanta cocktail bars and lounges by neighborhood, vibe, and occasion. Running on SEO.

Launched last year03

CocktailConnect

iOS · Real-time social

Launched this year04

SeoulGlo

iOS · K-beauty

Launched this year05

Soulwell

iOS · Prayer journal

In progress06

Matcharo

iOS · Local brand

ABOUT

Engineer at a US tech company

AI Automation

I pressure-test new models and tools on real products. Development, content, marketing — the whole pipeline runs on AI workflows, and the projects on this page are the output.

Model evaluationAI agentsAutomation pipelines

// ai now

What's happening in AI right now.

I experiment with these shifts daily and only write down what holds up.

AI writes the code

Google said back in 2024 that AI was already writing over 25% of its new code. The number is higher now.

Google

The agent era

AI agents that finish hours of work from a single instruction are now part of real production workflows.

Agents

Intelligence gets cheap

The cost of the same level of AI capability keeps falling roughly 10x every year.

−10x / yr

Vibe coding

Building software in natural language is becoming the standard — coding knowledge is no longer the barrier to entry.

Vibe Coding

One-person leverage

Individuals who run AI like a team ship team-sized output. The 'one-person unicorn' is now a serious conversation.

Solo Founder

// contents

Here's what's coming
next.

Everything ships as YouTube videos and free templates. Subscribe to the newsletter and new videos and resources land in your inbox. Only things I've actually done myself.

01

Building with AI

You no longer need to be a developer to ship apps, websites, and automations. From idea to launch, I show the whole process on screen.

Claude CodeSide projectsApp launches

02

AI for your business

Automating the repetitive work — review replies, content production, customer support. Only things you can plug into your business today.

Review automationContent automationCustomer support

03

A developer's honest take

"An agency quoted $5,000 for AI work — is that fair?" I answer as a working engineer: what's possible, what isn't, and what it really costs.

Quote sanity-checksReal costsWorks vs doesn't

How to follow — the YouTube channel is in the works. For now, start with the newsletter and the free resources.

▶ YouTube — coming soonFree resources Subscribe

// free resources

The exact files I use,
free for everyone.

Only files I actually use while building and shipping. Leave your name and email and everything's yours.

Browse all resources→

~/kit/SKILL.md

Featured

SaaS Launch Playbook — Claude Skill

The 10-step launch playbook as an executable Claude skill. Install it, say "start the launch playbook", and Claude drives research, competitor teardowns, build, and ad analysis — in order.

1-min installResearch → launch, 10 stepsCompetitor teardownMeta ads analysis

↓ Free download

~/kit/CLAUDE-md-business-template.md

Production CLAUDE.md Template

The structure lifted straight from a project that made it through App Store review. Scope tables, constants, definitions of done — with a filled-in example.

↓ Download

// newsletter

Once a week,
the process, unfiltered.

What I built this week, what it actually cost, one thing I learned. Good weeks and stuck weeks alike. I read every reply.

// community

Gathering people who build
their own thing with AI.

People building with AI, people serious about a side income — what fizzles out alone gets finished together. I'm putting together a community for exactly those people.

01

Build in the open

Share your project and where you're stuck. A problem that costs you three days alone takes someone else ten minutes.

02

Real numbers only

Actual costs, actual revenue, what actually works. Data from people who've done it — not theory, not ads.

03

US-based network

A network of people building and selling in the US. Find the others playing on the same field.

COMING SOON

Community opening soon

Pre-register and you'll be invited as a founding member the day it opens. Until then, I'll share progress through the newsletter.

// contact

Have a proposal or want to collaborate?
Send me an email.

No format needed — a short note about what you have in mind is enough. I read and reply to everything myself.

✉ sean@seanyou.com

01

Community · Study groups

Members to build with, proposals about running the community

02

Business · Collaboration

AI adoption, automation builds, product collaboration

03

Speaking · Podcasts

Talks, podcasts, interviews, and general inquiries