let
  mkDefaultInterface =
    _: attrs:
    {
      ipv4 = [ ];
      ipv6 = [ ];
      gateways = [ ];
    }
    // attrs;

  mkBase =
    config: config // { interfaces = builtins.mapAttrs mkDefaultInterface (config.interfaces or { }); };

  getAddresses = version: interface: builtins.map (builtins.getAttr "address") interface.${version};

  filterIPv4 = ip: builtins.substring 0 7 ip != "192.168";
  filterIPv6 = _: true;

  mkNet =
    _: value:
    let
      base = mkBase value;
    in
    base
    // {
      addresses =
        let
          _addresses =
            builtins.foldl'
              (
                { ipv4, ipv6 }:
                net: {
                  ipv4 = ipv4 ++ getAddresses "ipv4" net;
                  ipv6 = ipv6 ++ getAddresses "ipv6" net;
                }
              )
              {
                ipv4 = [ ];
                ipv6 = [ ];
              }
              (builtins.attrValues base.interfaces);
        in
        _addresses
        // rec {
          publicV4 = builtins.filter filterIPv4 _addresses.ipv4;
          publicV6 = builtins.filter filterIPv6 _addresses.ipv6;
          public = publicV4 ++ publicV6;
        };
    };
in

builtins.mapAttrs mkNet {
  compute01 = {
    interfaces = {
      eno1 = {
        ipv4 = [
          {
            address = "129.199.146.147";
            prefixLength = 24;
          }
          {
            address = "192.168.1.147";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.146.254" ];
      };
    };

    hostId = "8df60941";
  };

  geo01 = {
    interfaces = {
      eno1 = {
        ipv4 = [
          {
            address = "129.199.210.194";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.210.254" ];
      };
    };

    hostId = "b88fee0c";

    dns = [
      "129.199.96.11"
      "129.199.72.99"
    ];
  };

  geo02 = {
    interfaces = {
      eno1 = {
        ipv4 = [
          {
            address = "129.199.210.69";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.210.254" ];
      };
    };

    hostId = "45d65237";

    dns = [
      "129.199.96.11"
      "129.199.72.99"
    ];
  };

  storage01 = {
    interfaces = {
      eno1 = {
        ipv4 = [
          {
            address = "129.199.146.148";
            prefixLength = 24;
          }
          {
            address = "192.168.1.148";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.146.254" ];
      };
    };

    hostId = "d4e7c369";
  };

  vault01 = {
    interfaces = {
      enp130s0f0 = {
        ipv4 = [
          {
            address = "129.199.210.85";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.210.254" ];

        DHCP = "ipv4";
      };
    };

    hostId = "e83b600d";
  };

  web01 = {
    interfaces = {
      ens3 = {
        ipv4 = [
          {
            address = "129.199.129.53";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.129.1" ];
      };
    };

    hostId = "050df79e";
  };

  web02 = {
    interfaces = {
      ens3 = {
        ipv4 = [
          {
            address = "129.199.129.235";
            prefixLength = 24;
          }
        ];

        gateways = [ "129.199.129.1" ];
      };
    };

    hostId = "b431ca10";
  };

  rescue01 = {
    interfaces = {
      ens18 = {
        ipv6 = [
          {
            address = "2a01:e0a:de4:a0e1:2d73:2a7e:18db:5728";
            prefixLength = 64;
          }
        ];
        ipv4 = [
          {
            address = "192.168.0.232";
            prefixLength = 21;
          }
        ];
        gateways = [ "192.168.0.1" ];
      };
    };
    hostId = "007f0200";
  };
}