OpenCut-app/OpenCut ? reverse-engineered prompt

I want to build a video editor app that's a free, open-source alternative to CapCut. It needs to be simple and intuitive for regular users, not professional videographers. The biggest selling points are privacy and being free, so it must run entirely on the user's device, with no watermarks on the final videos and absolutely no subscriptions.

The core functionality should be a classic timeline-based editor. Users need to be able to arrange clips, use multiple tracks for layering video and audio, and see their work in a real-time preview window.

Let's start with a modern web application that can run in any browser. It should feel fast and responsive. Also, please structure the project to support a native desktop app for Mac and Windows, even if it's just a work-in-progress for now. You can use Rust or WASM for performance-heavy parts to make sure the editing and previewing are smooth.