From Architect to Indie Hacker: How I Built My First SaaS with Zero Code (and hit 7.1% conversion)
Last July, I was a full-time architect who didn't know a single line of code. Today, I guess I can officially call myself an indie developer. My first product, RenderArchi, just completed its 0-to-1 loop. I went through the whole grinder: development, launch, feedback, marketing, global expansion, and GEO.
Four months post-launch, I have over 2.5K registered users with a 7.1% conversion rate. It’s not "retire on a beach" money yet, but it blew my expectations out of the water.
1. Building the MVP
Back in July 2025, I started playing with AI tools like Flux. As an architect, rendering takes up a massive chunk of our lives. AI saves time, but getting a production-grade render that actually respects structural logic? Still a pain in the ass. I wanted to turn my own experience into a workflow.
Using open-source GitHub templates and Cursor, it took me about 3 months to hack together the MVP. Honestly, it was simple. But I learned something crucial: grab the main problem and ship the MVP fast. Scratch your own itch.
2. Iterating Like Crazy
Once built, I forced my architect friends to try it. I kept tweaking it until it was actually useful. Then I posted my first thread on Xiaohongshu (a Chinese social app). Despite zero marketing experience, the response was wild—100 organic users in week one.
One huge win: Originally, I forced users to sign up right away. Bad idea. I changed it so they could upload an image, write a prompt, and only had to sign up right before hitting "Generate." That strategy killed the bounce rate. 20 days later, I got my first paid order.
3. Reality Check: The Money & The Market
Once cash started flowing, I freaked out—I was actually losing money on server costs at first. After running the numbers, I realized my pricing was too low and my free tier was too generous. Setting up a freemium model requires a brutal balance. Plug in Microsoft Clarity to watch user sessions, by the way. It saved my ass.
To be completely transparent about the revenue: I've made around $1,500 total so far. But here's the kicker—about 85% of that comes from the Chinese domestic market. Why? Because I started by hustling on local platforms to my immediate network of local architects.
People say the domestic market is the hardest to monetize. So, getting local architects to actually pay real money for this proved my PMF (Product-Market Fit) is absolutely real.
4. The Final Boss: Global Distribution
Now that the product is validated and profitable locally, taking it global is the ultimate challenge. I've already started getting paid users from Brazil, Turkey, and Italy, but traffic is still the final boss.
My current playbook:
Social media & Building in public (X/Twitter, Pinterest, Reddit).
SEO & GEO (Directories like TAAFT, backlinks).
I still suck at marketing, to be honest. But everyone starts somewhere. Brand building has a massive lag effect. My motto right now: Just put it out there and stay patient.
