# Validate the model before you let it pose for the screenshot

- Category: product
- Author: Titus Nicolae (https://indie.md/people/titus-nicolae/)
- Source: https://indie.md/journeys/titus-hausjam/
- Canonical URL: https://indie.md/advice/validate-before-the-pretty-demo/

HausJam can produce a room that looks finished and is still dimensionally untrustworthy, which is the most dangerous kind of demo. Titus's rule is to validate before production, before the screenshot, before the moment a founder falls in love with a render. Prompting, used carefully, still fixes more than a hurried fine-tune, and a human fallback is part of validation, not an admission of defeat. The lesson is wider than furniture: generative features fail by being persuasive. Build a check that can say no, a measurement, a held-out set, a person with a slider, and run it while you still have the nerve to throw the pretty output away.