move stateVersion to individual hosts

configuration/common/default.nix

@@ -48,13 +48,4 @@
       Maintainers: ${wheelUserNames}
     '';
   };
-
-  # This value determines the NixOS release from which the default
-  # settings for stateful data, like file locations and database versions
-  # on your system were taken. It‘s perfectly fine and recommended to leave
-  # this value at the release version of the first install of this system.
-  # Before changing this value read the documentation for this option
-  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-  system.stateVersion = "21.03"; # Did you read the comment?
 }
-

hosts/dns-mgmt/configuration.nix

@@ -19,4 +19,12 @@
   rc3.deploy.ssh.host = "2a01:4f8:c010:1357::1";
 
   rc3.dns.isPrimary = true;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.03"; # Did you read the comment?
 }

hosts/ns1/configuration.nix

@@ -17,4 +17,12 @@
   ];
 
   rc3.deploy.ssh.host = "168.119.191.199";
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.03"; # Did you read the comment?
 }

hosts/ns2/configuration.nix

@@ -17,4 +17,12 @@
   ];
 
   rc3.deploy.ssh.host = "168.119.191.200";
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.03"; # Did you read the comment?
 }