# set variable for later use
export host=$(hostname)

# install necessary packages
sudo apt update
sudo apt install openssh-server git

# setup SSH access with authorized key
# DO leave passphrase as empty
ssh-keygen
ssh-copy-id $USER@$host

# SUDO without password
echo "$USER ALL=(ALL) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/$USER

# add hostname into `/etc/hosts`
sudo sed -i "s/localhost.*\$/& $host/" /etc/hosts

# install python packages
sudo apt install python3-pip pipenv