At work, we support umpteen OSes in our build (a lot of C++ stuff, so it's picky about where it builds and runs). For the Linux side of things (where most of th

At work, we support umpteen OSes in our build (a lot of C++ stuff, so it's picky about where it builds and runs). For the Linux side of things (where most of the dev work is actually done), I'm in the process of building Docker images for our range of build machines, so that a developer can put up a releng-equivalent build environment in a couple minutes, pulling images from a locally-hosted registry. Our current system is built on a combination of VM templates and documentation for the devs to set up their own build machines manually. Anything that I can't containerize will be stuck there, too.