You don't even need to clone this repo.
Install Debian (or Raspbian etc.) in your machine.
Login and become root.
Then run:
bash -c "$(wget -O - https://raw.githubusercontent.com/vemarsas/wiedii-bootstrap/main/bootstrap.sh)"
See README.Vagrant.md.
As root:
wget https://raw.githubusercontent.com/vemarsas/wiedii-bootstrap/<MY_BOOTSTRAP_BRANCH>/bootstrap.sh
bash bootstrap.sh MY_APP_BRANCH