anyone have a mirror link for the xoio berlin flat
Why dont you just download it from the marketplace? 
I just checked myself. It’s still there under the Showcases and Complete projects.
When you click on it, if you’ve not downloaded before it will say “Free” and once you click that you will have the versions it’s available for. Right now it’s 4.6.1 and 4.5.1 that work. Once 4.7 is released that will work as well.