Submission by Pranay Haldiya

Launch Studio turns any website into a platform-ready promo video in minutes. Paste a product URL and Launch Studio automatically ingests the page, writes a creative brief, plans a scene-by-scene timeline, generates cinematic voiceover (or multi-voice dialogue), a music bed, and sound effects — then renders and delivers a finished MP4. Cloudflare usage: Workers (API + asset serving), Durable Objects via Agents SDK (stateful pipeline orchestration per user), 3 Workflows (timeline planning, render execution, Stream publishing), Workers AI (creative brief + timeline generation), R2 (audio stem storage with HMAC-signed URLs), and Stream (video hosting + HLS/DASH delivery). ElevenLabs usage: Text-to-Speech with eleven_flash_v2_5 for voiceover and dialogue (2 alternating voices per scene), Sound Effects generation for contextual SFX per scene, and Music generation for a full music bed matching the brief's mood. Built in one week. URL in → video out.