Margin - Turn the YT videos you watch into your next video idea

Hey Product Hunt 👋 I'm Chandan, solo maker of Margin. What inspired it: I kept running into the same wall as a creator not filming, not editing, but deciding what to make next. I'd watch a ton of videos in my niche, and every one sparked something: a hook, an angle, a "I'd do this completely differently." And every one of those sparks died in a notes app I never reopened. My ideas had a graveyard, and it was my Notes app. The problem I set out to solve: the blank page. Creators don't lack ideas they lose them. The good stuff shows up while you're watching, and there was no tool that captured that and turned it back into something you could actually make. How the approach evolved: I started building a note-taker — "turn videos into clean summaries." But summaries just became a nicer graveyard. Nobody reopens notes. The real unlock came when I flipped it: the notes aren't the product, they're the fuel. So Margin now watches what you watch, remembers what mattered, and pushes ideas back out to you when you're stuck grounded in your actual watch history, not generic AI prompts. That shift, from "storage" to "your next idea," is the whole product now. It's early and built solo, so it's rough in places. I'm here all day tell me what's confusing, what's missing, and whether the idea-generation actually feels useful or gimmicky. Brutal feedback is the best gift today. 🙏