You should be able to run most challenges just fine, I guess. Dependencies are noted per level and easy to get on most systems, I assume (i.e. python or ruby p

You should be able to run most challenges just fine, I guess. Dependencies are noted per level and easy to get on most systems, I assume (i.e. python or ruby plus some extras. 4/6 need phantomjs as well for the bot). I really think VMs (or even a single one) would be overkill.