I am running a balance 580 and I am not using pepvpn. I do recall now that this required that I buy a license for openvpn for the balance ($20). With that you can create a virtual WAN that connects to the ovpn server via starlink and that is how you get the static IP. You can then setup inbound openvpn on the virtual WAN you created on the balance (in the remote user access menu) and use the openvpn app to connect your client. Hope that makes sense - It does work.