Shopify store owners running paid social face a constant content bottleneck: short-form video (TikTok, Reels) drives the cheapest acquisition today, but producing enough video variations to feed ad platforms and organic feeds is slow and expensive. Most merchants already have everything needed to make a video (product photos, titles, prices, descriptions) sitting in their Shopify catalog, but they still hand-assemble clips or hire freelancers per launch. Reel Studio closes this gap. It connects to a store's Shopify catalog and auto-generates short product videos, then schedules them to TikTok and Reels around product launches. The MVP is tightly scoped: a Shopify app that reads catalog data, applies motion templates to product imagery, layers text (name, price, offer), stitches a soundtrack, and outputs vertical clips ready to post or schedule. Revenue is a straightforward SaaS subscription per store, tiered by number of videos or connected products, with an optional per-launch burst plan for merchants who batch content around drops. Go-to-market rides the Shopify App Store as the primary channel, since merchants already search it for ecommerce tools, supplemented by direct outreach to stores visibly running paid social. Growth loops come from watermarked or branded outputs on early tiers, template sharing between merchants, and the natural cadence of repeat launches that keeps a store generating new videos every cycle.