wynne: replace network manager with networkd

hosts/wynne/network.nix

@@ -7,14 +7,32 @@
       "2620:fe::9#dns.quad9.net"
       "149.112.112.112#dns.quad9.net"
     ];
-
+    useDHCP = lib.mkDefault false;
-    networkmanager = {
+    useNetworkd = true;
-      enable = true;
-      dhcp = "dhcpcd";
-      dns = "systemd-resolved";
   };
 
-    useDHCP = lib.mkDefault false;
+  systemd.network = {
+    enable = true;
+    networks = {
+      "41-ether" = {
+        enable = true;
+        matchConfig = {
+          Type = "ether";
+        };
+        networkConfig = {
+          DHCP = "yes";
+        };
+        dhcpV4Config = {
+          UseDomains = true;
+        };
+        ipv6AcceptRAConfig = {
+          UseDomains = true;
+        };
+        linkConfig = {
+          RequiredForOnline = "yes";
+        };
+      };
+    };
   };
 
   services.resolved = {