to get your system ready there are two ways to proceed. One using a Virtualbox setup, the other installing all needed on your personal machines.
You need to install VirtualBox. Go to https://www.virtualbox.org/ and Download and install the application (for linux users, you can check if your distro has official packages). After you have done that you will want to download and unzip the file https://s3.eu-west-2.amazonaws.com/emacs-workshop/emacs-vdi.zip (2.6 Gb compressed, 6.2 expanded) and the virtualbox file https://s3.eu-west-2.amazonaws.com/emacs-workshop/Emacs-Basic.vbox (both on the same folder). You can then proceed to add it into Virtualbox (On the Menu Machine->Add).
After that, make sure that you can log into the machine (username and password are emacs). You should see the Emacs icon on the left hand launcher.