Each film starts from the product's own site: its words, colours and type. I write a beat sheet locked to a tempo, so every cut lands on the music. The shots are HTML/JS scenes rendered with Playwright, with real motion blur, then finished in FFmpeg. Claude is my co-pilot for all of it. Sound: ElevenLabs effects, Suno music on the first three, and a score I composed in code (Python) for the newest three.