What configuration do I need to make protonvpn work?

This is my current configuration but protonvpn doesn’t work either on my desktop or laptop. Any suggestions? I don’t need any particular network settings for day to day use. environment.systemPackages = with pkgs; [ proton-vpn wireguard-tools ]; networking = { networkmanager.enable = true; networkmanager.wifi.backend = "iwd"; firewall.checkReversePath = false; wireless.iwd = { enable = true; }; }; users.users.myUsername = { isNormalUser = true; ...