{
  povSelf,
  pkgs,
  lib,
  config,
  hostConfig,
  utils,
  ...
}:
let
  inherit (lib) types;
  cfg = lib.getAttrFromPath povSelf config;

in
{

  option = {
    type = types.bool;
    default = false;
  };

  config = lib.mkIf cfg {
    sops.secrets."pppCredentials" = { };

    services.pppd = {
      enable = true;
      peers.dtagdsl.config = ''
        debug
        plugin pppoe.so dtagdsl
        ifname ppp-dtagdsl
        file ${config.sops.secrets."pppCredentials".path}
        mtu 1500
        mru 1500
        maxfail 0
        novj
        +ipv6
        noauth
        defaultroute
        persist
        noaccomp
        default-asyncmap
        lcp-echo-interval 30
        lcp-echo-failure 4
        #lcp-echo-adaptive
        lcp-max-configure 10
      '';
    };
  };

}