How I Made $847/Month Letting GPT-4 Write Developer Docs While I Sleep Most developers chase passive income by building SaaS tools or selling courses. But there's a quieter opportunity hiding in plain sight: automated API documentation generation for niche industries . Here's the exact system I...
Source: [Dev.to](https://dev.to/sinan_koak_4a6dea677278a/build-a-sleeping-income-machine-auto-generate-and-sell-niche-api-documentation-with-ai-3ce5)