nixos/modules: users.(extraUsers|extraGroup->users|group)

nixos/modules/services/hardware/sane.nix

@@ -124,7 +124,7 @@ in
       environment.sessionVariables = env;
       services.udev.packages = backends;
 
-      users.extraGroups."scanner".gid = config.ids.gids.scanner;
+      users.groups."scanner".gid = config.ids.gids.scanner;
     })
 
     (mkIf config.services.saned.enable {
@@ -152,7 +152,7 @@ in
         };
       };
 
-      users.extraUsers."scanner" = {
+      users.users."scanner" = {
         uid = config.ids.uids.scanner;
         group = "scanner";
       };