move variables to generic subfolder

configuration.nix

@@ -6,12 +6,11 @@ in
 {
   imports = [
     ./hardware-configuration.nix
-    ./variables-module.nix
-    ./variables.nix
     ./files.nix
     ./users.nix
     ./generic/api/api.nix
     ./generic/modules/api.nix
+    ./generic/modules/userdata.nix
     ./generic/services/backup/restic.nix
     ./generic/services/cloud/nextcloud.nix
     ./generic/services/git/gitea.nix
@@ -26,6 +25,7 @@ in
     ./generic/services/webserver/memcached.nix
     ./generic/services/webserver/nginx.nix
     ./generic/system/limits.nix
+    ./generic/system/userdata.nix
   ];
 
   nixpkgs.overlays = [ (nix-overlay) ];

generic/system/userdata.nix

@@ -0,0 +1,6 @@
+{ pkgs, ... }:
+{
+  services = {
+    userdata = builtins.fromJSON (builtins.readFile ./../../userdata/userdata.json);
+  };
+}

variables.nix

@@ -1,6 +0,0 @@
-{ pkgs, ... }:
-{
-  services = {
-    userdata = builtins.fromJSON (builtins.readFile ./userdata/userdata.json);
-  };
-}