Hi Eliot

 >>The latter. Each top-level build directory corresponds to a host architecture (OS, processor, word size). Within each top-level build directory are all the variants of VMs that we can build. That fills out the 2d grid of os/processor vs VM variant.

Awesome.

Expect a skeleton for you to preview on my svn server later today.

I will then fill-in-the blanks.

Cordially,

t