[cindori]

I think you will find that if you try to do that, it will actually not work properly. Visiting the lock screen repeatedly will eventually crash the wallpaper extension, producing a black screen. And updating macOS will reset all your wallpapers.

Backdrop uses a more advanced approach that ensures that it works seamlessly across reboots and macOS updates.

[commandersaki]

seamlessly across reboots and macOS updates

Famous last words.