I want to do something like this, but without OpenVPN's UI:
https://openvpn.net/vpn-server-resources/assigning-a-static-vpn-client-ip-address-to-a-user/
I need to assign static IP addresses to each client that connects to a specific OpenVPN server. They need to be persistent through as many environment changes as possible.
How can I do that manually? Is this scriptable?