hyung
builder • hallos
Hi, I’m Hyung, and I’ve been building apps for many years, but this is the first time I’m building everything myself. Let me show you how it works.
A little heart. A lot of possibility.
Bring your
computer
to life.
A home for your AI agents. A community for curious builders.
Every good thing starts with a little spark.
At home on your Mac. Connected to you on your phone.
Starting here, with me
I’m building this
in the open.
I’m building hallos with hallos. I want to share the process as it happens: the useful discoveries, the wrong turns, and the things I’m still figuring out.
Over time, I’d love this to become a place where we share what we’re making, learn from each other, and help when someone gets stuck. It starts with my own work and an open invitation to ask questions.
Hyung Lee, Founder & BuilderHow I use hallos.
A few of the things it runs for me todayShipping every app at once.
Codex and Claude Code sessions on my Mac work across the Mac, iPhone, and Android apps, the agent, and the API, each change in its own worktree.
Checking in from my phone.
I start a session, answer an agent’s question, or review what changed without going back to my computer.
Keeping the launch on track.
Agents work through signing, updates, domains, and email setup with me, and keep the launch plan current as each piece lands.
Notes from the build.
The things I want to share hereWhat I’m trying.
Building hallos around agentic workflows that help me build and run my business the way I envision it—with control, freedom, and room to enjoy the process.
What didn’t work.
The mistakes, surprising limits, and decisions I’d make differently next time.
What we can learn together.
Ask anything. Share your experience, the good and the bad. We all have something to learn from each other.