I'm having trouble finding an app that will do a slideshow of both photos and video clips. Chromecast ambient is really nice but skips all the video clips. One of the better aspects of Chromecast Ambient mode is the ability to display shared albums enabling us to set up a screen for a tech impaired family member and display new photos for them without any management on their part. It just really sucks that there's no video option. I can think of a lot more features to add but this is my main issue for now.

Please... please share any and all slideshow apps that will do this. The more customization features the better. Hopefully with the ability to sync with Google Photos , Apple, Synology etc.