fix some ulmo config

systems/x86_64-linux/ulmo/default.nix

@@ -5,14 +5,24 @@
     ./hardware.nix
   ];
 
-  networking.interfaces.enp2s0 = {
+  networking = {
+    interfaces.enp2s0 = {
       ipv6.addresses = [
         { address = "2a0d:6e00:1dc9:0::dead:beef"; prefixLength = 64; }
       ];
 
-    ipv4.addresses = [
-      { address = "192.168.1.3"; prefixLength = 16; }
-    ];
+      useDHCP = true;
+    };
+
+    defaultGateway = {
+      address = "192.168.1.1";
+      interface = "enp2s0";
+    };
+
+    defaultGateway6 = {
+      address = "fe80::1";
+      interface = "enp2s0";
+    };
   };
 
   sneeuwvlok = {

systems/x86_64-linux/ulmo/disks.nix

@@ -5,9 +5,7 @@ in
 {
   # TODO :: Implement disko at some point
 
-  swapDevices = [
-    { device = "/dev/disk/by-uuid/0ddf001a-5679-482e-b254-04a1b9094794"; }
-  ];
+  swapDevices = [];
 
   boot.supportedFilesystems = [ "nfs" ];