Some work needs to happen locally to show you a preview of what you're going to transmit, as it should for most video related work. If the segmentation is done

Some work needs to happen locally to show you a preview of what you're going to transmit, as it should for most video related work. If the segmentation is done server-side, then you need to sync it to the sender and reflect that quickly in the preview. It's probably not a great experience, at least for a launch.