Remove obsolete DNS resolver

nixos/machines/ghatanothoa/configuration.nix

@@ -4,7 +4,7 @@
     ../../modules/jitsi.nix
     ../../roles
     ../../roles/vm.nix
-    ../../modules/vmNetwork.nix
+    ./network.nix
   ];
 
   services.mathebau-jitsi = {
@@ -14,6 +14,5 @@
 
   # System configuration here
   networking.hostName = "ghatanothoa";
-  vmNetwork.ipv4 = "192.168.0.25";
   system.stateVersion = "23.11";
 }

nixos/machines/ghatanothoa/network.nix

@@ -0,0 +1,16 @@
+# We sohuld put that config somewhere in roles and give it a parameter or something,
+# everyone gets the same nameserver and the same prefixLength and address vs defaultGateway alsways
+# depend on the same thing
+{
+  imports = [];
+  networking = {
+    interfaces.enX0.ipv4.addresses = [
+      {
+        address = "192.168.0.25";
+        prefixLength = 16;
+      }
+    ];
+    defaultGateway = "192.168.0.152";
+    nameservers = ["130.83.2.22" "130.83.56.60" "130.83.22.60" "130.82.22.63"];
+  };
+}

nixos/modules/vmNetwork.nix

@@ -1,48 +0,0 @@
-{
-  lib,
-  config,
-  ...
-}: let
-  inherit
-    (lib)
-    mkOption
-    types
-    last
-    init
-    ;
-  inherit
-    (lib.strings)
-    splitString
-    concatStringsSep
-    toInt
-    ;
-  cfg = config.vmNetwork;
-in {
-  imports = [];
-
-  options.vmNetwork = {
-    ipv4 = mkOption {
-      type = types.str;
-      description = "the ipv4 adress of this machine";
-    };
-  };
-
-  config = {
-    networking = {
-      interfaces.enX0.ipv4.addresses = [
-        {
-          address = cfg.ipv4;
-          prefixLength = 16;
-        }
-      ];
-      defaultGateway = let
-        addr = splitString "." cfg.ipv4;
-        addrInit = init addr;
-        addrLastInt = builtins.toString (toInt (last addr) + 127);
-      in
-        concatStringsSep "." (addrInit ++ [addrLastInt]);
-      # https://www.hrz.tu-darmstadt.de/services/it_services/nameserver_dns/index.de.jsp
-      nameservers = ["130.83.22.63" "130.83.22.60" "130.83.56.60"];
-    };
-  };
-}