Re: Updated version of MMM-iFrame
So using the MMM-iFrame you can get google photos onto a mirror
Firstly you need to get this add on for slides https://chrome.google.com/webstore/detail/photo-slideshow/llgeanpccblagafdmfalehmopdbakhol?hl=en
This allows you to auto generate a slides presentation from a photos album
Next copy the link into iFrame (file -> publish to web)
Set you size position
And here is a result
Hope you find it useful!