curl https://repo.protonvpn.com/debian/dists/stable/main/binary-all/protonvpn-stable-release_1.0.3_all.deb sudo apt install *.deb sudo apt update && sudo apt install protonvpn-cli
curl https://repo.protonvpn.com/debian/dists/stable/main/binary-all/protonvpn-stable-release_1.0.3_all.deb
sudo apt install *.deb
sudo apt update && sudo apt install protonvpn-cli