How to set random images for background on my main dashboard every day?

I have a bunch of JPGs in a folder. Any idea if it’s possible to randomly select an image every day at say 4Am and set it as the background for my main dashboard?

I found this but it doesn’t seem like it accepts templates at all :(.

lovelace-background: 'center / cover no-repeat url("/local/holidays/christmas-background-4.jpg") fixed

:sob: not possible?