How to Make Product Launch Videos With Opus 5.5 (Full Guide)

A '5-file studio' run on a made-up invoicing app: a seek(t) smoke test, CLAUDE.md rules, a LOOK.md style card, a measured sound kit, five scenes built as separate clips (hook, demo, morph, proof, loop end), contact-sheet and pop-scan checks, and a skill for next time. Per-step costs are the author's; the joined film was still marked as rendering.