
Starter Story How did this guy build a $42K/month business with AI? | Starter Story
Sep 23, 2025
Discover how an entrepreneur skyrocketed to $42K a month in just 90 days using AI. The journey highlights innovative ideas and the critical role of user validation. Learn about the effective marketing strategies that propelled this business in a competitive landscape. Get inspired by the rapid transformation of an idea into a profitable venture!
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Rapid Build Validated By Landing Page
- CJ built CodeGuide.dev in 14 days and reached $42k/month within 90 days.
- He validated demand with a landing page and signups before building the product.
12 Startups Experiment Led To Breakout
- CJ started a project to build 12 startups in 12 months which led to his successful idea.
- That experimentation process produced the concept that became CodeGuide.dev.
Validate Demand Before Building
- You can generate substantial demand before writing code by testing with a clear landing page.
- Early signups validate product-market fit and de-risk actual development work.
