Simon Willison used Claude Opus 5.5 to generate an animated pixel art page of kakapo parrots celebrating with confetti, prompted with three photos found via Google image search, for his closing keynote at the WeAreDevelopers World Congress North America. He then asked a local Claude Code session to produce a 15-second video of the page; it wrote a short Playwright script that loaded the file and clicked to trigger confetti effects.
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