Every SaaS product needs a demo video. The standard options are screen recording, which looks amateur and breaks every time the UI changes, or hiring a motion designer, which costs thousands of dollars and takes weeks. Both produce a static artifact that is outdated the moment you ship a new feature. I needed a product walkthrough for SampleHQ . Instead of choosing between those two bad options, I built a third: a React-based framework that generates cinematic demo videos programmatically. The result is remotion-cinematic , an open-source template built on Remotion . Here is the video it produced: Why Code Instead of a Screen Recording A screen recording captures pixels. When you redesign a page, rename a feature, or change the navigation structure, the recording is wrong. You re-record, re-edit, re-export. Every time. A programmatic video captures intent. The video is a React composition that renders your actual UI components. When the UI changes, you update the component and re-render.…