sudo apt install wget -y
wget https://protonvpn.com/download/protonvpn-stable-release_1.0.1-1_all.deb
sudo apt install ./protonvpn-stable-release_1.0.1-1_all.deb
rm ./protonvpn-stable-release_1.0.1-1_all.deb
sudo apt update
sudo apt install protonvpn