[khedoros]

At work, we've got our prereqs stored in a combination of Artifactory and Perforce. Even for my own personal projects, I'll fetch packages from the Internet when I'm setting up my dev environment, but actually doing a build only uses packages that I've got locally.

It's a little mind-boggling to me that anyone would rely on the constant availability of a free external service that's integral to putting their product together. I handle timestamps for codesigning through free public sites, but I've also got a list of 8 different timestamp servers to use, and switch between them if there's a failure.