I asked Claude Code for a motion showreel of my app, "like it's your showreel for a résumé". It drew every frame in code and synthesized the music from scratch

Saw someone do this for their product last week and wanted to see how far it goes, so I tried it on two things: my app's website and the mobile app itself. No After Effects, no templates, no stock music. Claude wrote an HTML/SVG/canvas page animated with GSAP, rendered it to MP4 with Hyperframes, and wrote a Node script that generates the whole soundtrack (kick, pads, marimba, even the tap and whoosh sounds) as raw samples. Every cut sits on the beat because the synth and the animation share one timing file. What I learned doing it, in case you want to try: * **Tell it the mode.** A web product wanted a dark cinematic 16:9 reel. The mobile app looked wrong in that style. It works much better vertical, in the app's own colors, with real screens inside a phone and a finger tapping through the actual flow. * **Use real screen captures, not mockups.** It measured button and card positions off the screenshots, then made cards lift out of the phone and a finished video burst out to full…