VMWare
Installation
First step
Install VMWare Workstation : VMWare Workstation On Linux you can download it with your package manager (Debian or Arch Linux).
Second step
Download our VMWare appliance.
Unzip the folder in an appropriate location (you can use
unzip vmware-cri-vm.zip).
Click on Open a Virtual Machine. 
Select the CRI_VM folder. 
Select the CRI VM.vmx file. 
Third step
You now have an imported VM. You can now run it by double clicking on it.
In the familiar PXE menu, choose the Prepare disk entry.
Let it boot, a script will run automatically and your VM will shutdown once its done.
Fourth step
You can Start your VM again. You can now use the PXE menu as usual to boot
NixOS image.
Be careful! You should log in with epita user and no password. Your data is in
/home/epita, this directory is kept between reboot, you will not lose files
each time you stop your VM.