Following software is needed to present
- qemu 2.x
- qemu-utils (especially qemu-img)
- lsusb
- bridge-utils
- some dhcp and dns servers, preferable dnsmasq, which serve both purposes
- python 2.7 to execute vws script
- SPICE client to connect to virtual machine GUI. In Debian it is remote-viewer program in the virt-viewer package.