[make_it_sure]

that's because people that usually become indie hacker don't have much expertise outside of development and a few very saturated markets. Everything related to indie hackers, statups, etc are super crowded because it's easier for a newcomer to enter the market and build something familiar to them.

Most people that have expertise on agriculture, oil drilling, saw-milling etc where there are real opportunities don't know much about startups or know how to build an app.