That's very exciting news. I still find somewhat confusing to execute "RUN" instructions, as they're much cleaner in Linux, but I need to dig the documentation. However there is a line that caught my attention:

> This flexibility comes at the cost of some bulk: The `microsoft/windowsservercore` image takes up 10GB.

Hope next versions shrink the image size.

> And the Nano Server base image is an order of magnitude smaller than Windows Server Core, meaning it has less dependencies and surface area to keep updated.

I wonder how smaller it is. Do you have any estimate here?