okay so most AI video tools make you a brand-new clip. OpenVids is different: the agents edit your own footage on a real timeline, and you can review or undo every change.
It's free and open source, runs on Mac (Apple Silicon) and Windows, and you plug in your own AI key. It's very new, so treat it as a rough-cut, narration and titles assistant.
The guide: install it (and the two security warnings you'll hit), connect a model, then three paste-ready prompts: a rough cut from a long recording, a narration with the music ducked under it, and a motion title checked by render QA.
20 pages, PDF attached. Tried it? Drop what you made in the comments.