Short summary: It's a DSL for video editing using python as the backing language. You can do things like "take this video, crop it this way" or "apply noise r

Short summary: It's a DSL for video editing using python as the backing language. You can do things like "take this video, crop it this way" or "apply noise reduction algorithm xyz" or even "Do AI upscaling". Vapoursynth has a pretty decent collection of 3rd party plugins that can do anything you could imagine to a video.