This project aims to create a virtual machine running linux that meets security and performance standards.
Complete Guide
There is a great guide created by parqualeross : https://github.com/pasqualerossi/Born2BeRoot-Guide Debian Version
In my project I used Debian 10.13. If you want to use the same version, follow the download link: https://cdimage.debian.org/cdimage/archive/10.13.0/amd64/iso-cd/debian-10.13.0-amd64-netinst.iso