Starting a SaaS from scratch today — what the community recommends
A Reddit thread asked what people would do if building a SaaS business from zero today, drawing practical advice from real operators. The most repeated message: find paying customers before writing a single line of code.
The post was written in Brazilian Portuguese, but the question is universal for anyone considering a one-person software business. Community responses consistently point to the same core principle — validate demand first, build second. That means finding people who will actually pay before investing months into development.
Other recurring advice includes picking a very narrow niche, solving a problem you personally experience, and launching fast even if the product is rough. For solo operators with limited time and money, the risk of building something nobody wants is far greater than the risk of launching too early. Small experiments that test real demand are the recommended first step.
Key points
- Find paying customers before writing any code
- Solve a problem you personally face — it makes validation much easier
- A narrow niche means less competition and easier customer targeting
- A fast rough launch beats a slow perfect one
- Solo founders have limited time — run small experiments to test demand first
Quick term guide
- business
- An activity where you provide value to others in exchange for money.
- software
- Programs or apps that run on a computer or smartphone.
- responses
- An OpenAI API feature for creating and handling model answers.
- validation
- Checking whether real people understand, want, or would use an idea before spending more time on it.
- solo founder
- A single person who builds and runs a product or business without co-founders
- founders
- People who are starting or running their own business or project.
- founder
- A person who starts a new company or project.
- test demand
- Check whether people truly want the product before fully building it.