Debian Vagrant Quickstart
Quickly run a Debian VM, for developing, testing, playing in only 4 steps.
Once VirtualBox is installed, install Vagrant itself.
apt install vagrant
Create a vagrant initial configuration in current dir.
vagrant init debian/buster64
Download the debian disk image and start it in Virtualbox.
Login in your new debian system.
Try a command as root (Once logged, you can execute any administrative command with sudo without password).
sudo whoami root