teardown

Repair videos contain useful knowledge, but finding the exact moment, part, or action often means scrubbing through a long recording. teardown turns narrated repair footage into a step-by-step visual guide: a keyframe per step, the relevant part highlighted when segmentation finds it, zoom insets, tools and parts, and a searchable step index. The web app accepts an uploaded video or a YouTube link and lets you jump between steps and the source footage. The pipeline combines transcription in 30-second windows, a model-generated plan, a mechanical check that each step's anchor quote occurs in the transcript, and part segmentation on one keyframe per step. That keyframe-first approach keeps segmentation costs down. The recorded demo generated 21 steps from a TheCod3r Xbox Series X repair video used with permission, at about $0.11 in API usage for that run. The guide is explicit about its limits: timestamps are approximate (+/-30 seconds), missed part matches are labeled "not highlighted", and output is a viewing aid rather than validated repair instructions. Browser-scoped guides auto-delete after three hours. The public demo has a metered budget and rate limits. YouTube ingest currently depends on a volunteer proxy and is not guaranteed. Live app: https://teardown-0k03.onrender.com/