refactor: moved nixos modules to dendrite pattern

modules/nixos/programs/jackett/default.nix

@@ -0,0 +1,21 @@
+{config, ...}: let
+  mod = config.flake.nixosModules;
+in {
+  flake.nixosModules.jackett = {
+    imports = [
+      mod.jackett-storage
+    ];
+
+    config = {
+      nixpkgs.overlays = [
+        # Disable jackett tests due to date-related test failures
+        # (ParseDateTimeGoLangTest expects 2024-09-14 but gets 2025-09-14 due to year rollover logic)
+        (final: prev: {
+          jackett = prev.jackett.overrideAttrs (oldAttrs: {
+            doCheck = false;
+          });
+        })
+      ];
+    };
+  };
+}

modules/nixos/programs/jackett/storage.nix

@@ -0,0 +1,23 @@
+{...}: {
+  flake.nixosModules.jackett-storage = {
+    lib,
+    config,
+    ...
+  }: let
+    jackett_data_directory = "/var/lib/jackett/.config/Jackett";
+  in {
+    options.services.jackett.impermanence.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = config.services.jackett.enable && config.storage.impermanence.enable;
+    };
+
+    config = lib.mkIf config.services.jackett.enable {
+      storage.datasets.replicate."system/root" = {
+        directories."${jackett_data_directory}" = lib.mkIf config.services.jackett.impermanence.enable {
+          owner.name = "jackett";
+          group.name = "jackett";
+        };
+      };
+    };
+  };
+}