Slideshow or Webpage as background to Sections Dashboard

I have a computer monitor mounted in our kitchen which we use display family and house information. There is a large space for an image which I can choose manually, but I would like to instead display a slideshow.

I have built the page using the Sections layout. Does anyone know how to use a slideshow as a background, or if that is not possible how to use a webpage as the background?

I found HASlideshow and slideshow-card but it looks they no longer work and are not maintained.