Habuskid/Recordly ? reverse-engineered prompt

Build me a polished desktop app for making screen recording demo videos without needing editing skills.

It should work on macOS, Windows, and Linux, let me record my whole screen or just one app window, and then open straight into an editor where I can trim clips, add zooms, smooth out the cursor, overlay a webcam bubble, and style the final video with backgrounds, padding, rounded corners, shadows, and aspect ratio presets. I also want to be able to add text or image annotations, speed up boring parts, add extra audio, save projects, and reopen them later. Export the finished video as MP4 or GIF, and make it feel clean and easy to use for someone making walkthroughs or product demos. If you need to look up current docs or platform capture details online, go ahead.