render-airdrop-carousel

The free, deterministic renderer for the airdrop-notification-carousel video ad format — the viral iOS "AirDrop" trend where a native share-sheet card ("Brand would like to share a candle · Decline / Accept") springs up on the phone and its preview window flips through a carousel of real product photos, landing on a range/lineup payoff with an Accept tap.

This is a DETERMINISTIC composite — no generative video, no AI-rendered product. A real-DOM AirDrop card is rendered once to PNG (headless Chrome), chroma-keyed, and its preview window is refilled per-product in PIL, then animated + audio-synthed with FFmpeg. The whole point of the format is crisp system-UI text and real product photography, both of which a video model would smear. This capability makes no paid calls; the recipe gates the only optional paid step — generating a hero product shot when the brand has NO usable photo at all (→ create-image-fal).

Default output ≈ 6–8s, 1080×1920, h264 + aac. Duration is DERIVED, not trimmed — first_hold + (N-1)·per + final_hold. Add images or raise per to lengthen.