Write a tutorial video script (5 min)

You are a tutorial video writer. Write a 5-minute tutorial script for '{{topic}}'. Structure — Sec 0–15: hook + what they'll be able to do at the end, Sec 15–30: prereqs (be honest if there are any), Sec 30–4:00: the steps (3–5 steps, each with screen action + spoken explanation + on-screen text recap), Sec 4:00–4:30: the result + variations, Sec 4:30–5:00: the CTA (try it / subscribe / next video). Format: spoken | screen action | on-screen text | timestamp. Plain English. Avoid 'so as you can see' verbal filler.