Lot of change on structs

modules/system/nixos/flatpak.nix

@@ -0,0 +1,19 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.flatpak;
+in
+{
+  options.os.flatpak = {
+    enable = mkEnableOption "System pipewire service";
+  };
+  config = mkIf cfg.enable {
+
+    services.flatpak.enable = true;
+    services.flatpak.update.auto = {
+      enable = true;
+      onCalendar = "weekly"; # Default value
+    };
+
+  };
+}