%VK:WINDOW is unbound
I tried executing (cl-vulkan-demo::run) on SBCL running on Windows 10,
Let me try it and I'll tell you what I know. It may be just that particular demo, because I use cl-vulkan on windows everyday.
It just worked for me, but I did notice a problem with cl-vulkan the other day:
The glfw3.dll file (and libglfw.3.4.dylib on mac, and libglfw.so.3 on linux) are not distributed with cl-vulkan. I distribute them in a downstream package called VkTk.
So if the unbound symbol is a result of not having glfw3 (which it actually likely isn't) then you may need to download glfw3.dll to get it working.
Are you sure you've got the latest commit?
-AKW