sudo -s
mkdir -p /etc/apt/keyrings # directory does not exist on older releases
curl -fsSL https://swupdate.openvpn.net/repos/repo-public.gpg | gpg --dearmor > /etc/apt/keyrings/openvpn-repo-public.gpg
 
echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/openvpn-repo-public.gpg] https://build.openvpn.net/debian/openvpn/stable noble main" > /etc/apt/sources.list.d/openvpn-aptrepo.list
 
apt-get update && apt-get install openvpn
apt-get install openvpn-dco-dkms

sudo openvpn --config /path/to/config.ovpn