setup postgres backup

services/postgres.nix

@@ -1,12 +1,20 @@
 { ... }:
 
 {
-  services.postgresql = {
+  services = {
-    enable = true;
+    postgresql = {
-    enableJIT = true;
+      enable = true;
-    initdbArgs = [
+      #package = pkgs.postgresql_18;
-      "--locale=C"
+      enableJIT = true;
-      "--encoding=UTF8"
+      initdbArgs = [
-    ];
+        "--locale=C"
+        "--encoding=UTF8"
+      ];
+    };
+    postgresqlBackup = {
+      enable = true;
+      startAt = "*-*-* 09:00:00";
+      compression = "zstd";
+    };
   };
 }