Hello World — why I'm building in public
Hello World — why I’m building in public
I’ve been meaning to start this for a while.
There’s something I’ve noticed in my work at M12 — the founders who move fastest aren’t the ones hoarding their ideas. They’re the ones talking out loud, testing assumptions, getting feedback, and iterating faster than anyone else. Building in public isn’t about showing off. It’s about compressing the feedback loop.
So here I am.
What is this place?
This is my corner of the internet. Part portfolio, part scratchpad, part thinking-out-loud machine. I’ll write about:
- AI agents — the stuff I’m tinkering with at night, from simple automations to more ambitious agentic frameworks
- VC / investing — patterns I see across the portfolio at M12, things I wish founders knew
- Ideas that won’t leave me alone — the kind of half-baked thoughts that deserve more than a tweet thread
Why now?
Because AI just changed everything about what one person can build.
A year ago, if I wanted to ship a side project, I needed to either code it myself (slow) or hire someone (expensive). Now? With the right tools and some creative thinking, I can prototype something real in an afternoon. The marginal cost of building is approaching zero.
That’s wild. And I don’t think most people have fully internalized what it means.
When building is this cheap, the scarcity shifts to taste and judgment. What’s worth building? What’s a toy vs. what’s a real product? Who actually needs this, and why now?
Those are the questions I want to think through in public.
What I’m building
I can’t share everything just yet, but the theme is: AI agents that do real work.
Not chatbots. Not wrappers. Actual agents that can reason, plan, use tools, and handle multi-step tasks without hand-holding. I think we’re just at the beginning of understanding what these systems can do.
More soon.
If you made it this far — thanks for reading. Drop me a note on Twitter/X or LinkedIn. I’d love to know who’s out there.
— Yuhang