You bought one didn't you. Now you're lost at where the drivers are, why it's not working. Or maybe even how to put the damn thing together, as it arrived in more parts than pieces.
Well, this repo is what you should have got when you picked this up.
Once you're all up and running, you can technically use the software from that famous plotter company that you didn't buy from because they're selling plotters the same price as a macbook.
One thing to note, here is a great tool for plotting: