Vibe coding — describing what you want and letting a coding agent assemble it — has opened software development to far more founders and dramatically cut the time to a working prototype. That is a real and useful change. It is also easy to mistake a convincing demo for a finished business.
What vibe coding is good at
It is excellent for speed. You can turn an idea into something clickable, test a user flow, and show investors or customers a real artefact instead of a slide. For validation and exploration, that velocity is genuinely valuable.
The gap between a demo and a product
A demo only has to work once, for you. A product has to work repeatedly, for strangers, with their data. That introduces authentication and access control, data protection, reliability under load, sensible error handling, monitoring and predictable cost. None of these are visible in a five-minute walkthrough, and none are automatically handled just because the prototype runs.
The questions a prototype does not answer
Beyond the code, a business needs answers a demo cannot give you: who pays, and how much; whether users come back; whether the unit economics work once you include model and infrastructure costs; how you support customers when something breaks. These are product and commercial questions, and they decide whether the thing you built is worth scaling.
When to invest in production readiness
The sensible sequence is to use a prototype to find signal — real interest, real usage, a problem worth solving — and then invest in the architecture, security and operational foundations that turn it into something you can sell and support. Doing that work too early wastes effort; skipping it once you have traction puts customers and reputation at risk.
Vibe coding is a strong way to start. Building a business is what happens after the demo works.