Add kafthretis as a wireguard peer

modules/networking.nix

@@ -108,6 +108,14 @@ in
           "fd00::3/128"
         ];
       }
+      # kathreftis
+      {
+        PublicKey = "qfHtv6LSZjtxvH46d8pysr+/yPo2tV9cZumgIpxBNF4=";
+        AllowedIPs = [
+          "10.8.0.4/32"
+          "fd00::4/128"
+        ];
+      }
     ];
   };