Calendar App Launch Video — All Code, One Prompt
Leon Lin
@LexnLin · 22.8K followersLeon Lin gave Claude Code (Opus 5.5) a single prompt and walked away for 8 hours. What came back: a full cinematic launch video for a fictional calendar app — name, logo, polished UI, smooth animations, an original soundtrack, and layered sound effects. Every frame and every note is generated code, nothing pre-made. The repo is open-source, so you can see exactly how the model orchestrated the entire production pipeline from scratch.
- One prompt produced a complete launch video: visuals, UI animations, logo, music, and sound effects — all as code
- Claude Code cooked autonomously for ~8 hours, orchestrating a full creative pipeline without human intervention
- Open-sourced immediately, letting anyone inspect how Opus 5.5 structured the entire multimedia build
“I asked Claude Code (Opus 5.5) to make a launch video for a fake calendar app and HOLY fuck, everything you see AND hear is code ONE prompt, it cooked for about 8h name, logo, UI, animations, soundtrack, sound effects opensource, repo in replies :)”
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