Add this repository to Debian/Ubuntu/Mint and install via apt:
curl -fsSL https://pavellizunov.github.io/VPNRouter/apt/key.gpg \ | sudo tee /etc/apt/keyrings/vpnrouter.gpg > /dev/null echo "deb [signed-by=/etc/apt/keyrings/vpnrouter.gpg] https://pavellizunov.github.io/VPNRouter/apt stable main" \ | sudo tee /etc/apt/sources.list.d/vpnrouter.list sudo apt update sudo apt install vpnrouter
After that, sudo apt upgrade keeps VPNRouter up to date.