How a 52-second motion design video brought 10+ paying customers to my Mac app (built entirely with Claude Opus 5.5)

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I can't do motion design and I didn't have the budget to hire someone. So I had Claude Opus 5.5 (in Claude Code) build the video for me. Since I posted it \[on X / on my site\], it has brought in a bit more than 10 paying customers \[in N days\]. Small number, but for a solo app it's a real one.

There is no timeline and no After Effects file. The video is a React/TypeScript project (Remotion), 1080p at 60 fps. Every frame is computed from its frame number, so the same code always renders the same film.

\- The notch, the panel and the widgets aren't mockups. Claude read my app's Swift layout code for the exact sizes and used real renders of the app.

\- Every sound is synthesized in code: no samples, no licenses. The keyboard sound has one keystroke per character, placed on the frame where that character appears, so each language has its own audio track.



My first message was a brief, not a script. It said what the video is for (present the companion, make people want to buy), what it has to show (everything it can do, with real examples, inside the notch), the feel (smooth, character properly animated) and the languages. I left the