Today a stranger paid me $4.99 for something I built. Not through my employer. Not from a paycheck. Just... someone on the internet who thought my work was worth paying for.

I graduated in Fall 2024 and landed my 9-5 by Spring. Should be grateful, right? But every time I hear about layoffs at other companies, I feel this invisible noose tightening. I haven't been laid off (yet), but I don't want to find out what happens when I am. So I decided to build something on the side, for myself this time.

**The problem I noticed**

I've been building side projects with AI for about a year now. Vibe coding, they call it. Sounds great until you realize your AI-generated code has security holes, exposed API keys, and UX issues you don't even know exist.

I learned this the hard way. My OpenAI key almost got exposed on one project. I still got a $2,000 bill. That woke me up fast.

So I started keeping a checklist: "Things I need to check before launching." Then I thought why not turn this into a tool that does it for me?

**What I built**

VibeProof scans websites built with AI and tells you exactly what's broken: exposed credentials, trust issues, UX problems, missing security headers. Then it gives you copy-paste prompts to fix them in your IDE.

Built the whole thing solo in 3 weeks. I used Gemini because I couldn't afford Claude Code, and Google was offering it free. No excuses.

**The first sale**

Finished it today. Told a few friends. They told their friends. One of them bought a report.

Seeing money hit my Stripe account that wasn't a paycheck... I don't have words for it. It felt like proof. Proof that this internet money thing isn't just for influencers and course sellers.

**What I learned**

* Everyone says "build fast." I say build at your own pace, but enjoy the process. If you love what you're building, **16-hour days fly by like nothing**, not drowning in one.
* Your first dollar matters more than your first thousand. It's validation that strangers will pay for your work.
* Scratch your own itch. My failed projects gave me the idea for this one.

Still early. Still figuring it out. But today felt like a turning point.

Happy to answer questions or share the tool if anyone's curious. What was your "first dollar" moment like?

After months of building, a stranger just paid me 14.99. I've never felt so validated.