Drop the locked master.
One file in. Packer reads duration, aspect ratio and loudness, and re-transcribes the final cut — so captions match the edit exactly, not the rushes.
The pack gets drafted.
Styled captions, aspect versions with safe-area crops and normalized audio, thumbnails on your brand preset, drafted titles, chapters and descriptions. Everything named, organized, and consistent — the way a good assistant would leave it.
Review it. Then hand it over.
Read the pack, fix what's wrong, approve. You get a folder a client can open and a manifest that still makes sense six months later — and if you publish direct, Packer can queue each version to its platform and slot.