Customize: Step race app promo

The prompt comes from a post by Mark Hinschberger. Watch the video

Make it yours

Everything is optional. Your details stay in this browser and carry over to the next prompt.

The highlighted part at the end is added from your details and dials. Where it disagrees with the prompt, it wins.

build me an incredible video for my app. make it emotional.

For best results, run it with Claude Opus 5.5.