So for full disclosure, it's not working *exactly* how I liked it. I liked being able to install the image on a usb drive, plug it into a computer, and boot it up. But that's because the programming competition I help host is at a different location every year. The "success" I am having now is running domjudge through docker installed on Ubuntu running in VirtualBox... which is okay, but now I need to make sure that the host site will allow me to install VirtualBox on their machines. I tried running domjudge through docker on a Rancheros livecd, but you have to have more than 4 gigs of ram for that to work with the size of the containers (which my host site *might* have). I remember having crashing issues a few years back when I tried to run everything through virtual machines (judgehosts would die randomly), but that might be resolved now. I have no idea how many people are in the same boat I am.
Just my 2 cents!
Matt