Created a central place for all common options to all hosts.

environments/sample/hosts/default.nix

@@ -8,14 +8,14 @@ in {
   # This file is imported by all host configurations (servers and workstations)
 
   # NTP servers for this environment
-  services.ntp.servers = [
+  environment.ntpServers = [
     "10.10.128.1"    # IPv4 gateway
     "fd00::1"        # IPv6 gateway
   ];
 
   # Time settings from network configuration
-  time.timeZone = env.time.timeZone;
-  time.hardwareClock = env.time.hardwareClock;
+  environment.timeZone = env.time.timeZone;
+  environment.hardwareClock = env.time.hardwareClock;
 
   # TODO: Move other common settings here later
   # Examples:

environments/sample/hosts/servers/default.nix

@@ -8,7 +8,7 @@ in {
   # This file is imported by all server configurations
 
   # Default DNS servers for this environment
-  networking.nameServers = [ "10.40.128.10" "10.40.128.11" ];
+  environment.dnsServers = [ "10.40.128.10" "10.40.128.11" ];
 
   # SMTP relay configuration
   services.postfix = {

environments/sample/hosts/servers/dns01/configuration.nix

@@ -22,5 +22,4 @@
     listenAddresses = [ "10.0.0.10" "127.0.0.1" "::1" ];
   };
 
-  system.stateVersion = "25.11";
-}
+}

environments/sample/hosts/workstations/default.nix

@@ -8,7 +8,7 @@ in {
   # This file is imported by all workstation configurations
 
   # Default DNS servers for this environment
-  networking.nameServers = [ "10.40.128.10" "10.40.128.11" ];
+  environment.dnsServers = [ "10.40.128.10" "10.40.128.11" ];
 
   # SMTP relay configuration
   services.postfix = {