refactor: moved nixos modules to dendrite pattern

modules/nixos/programs/qbittorent/default.nix

@@ -0,0 +1,10 @@
+{config, ...}: let
+  mod = config.flake.nixosModules;
+in {
+  flake.nixosModules.qbittorent = {
+    imports = [
+      mod.qbittorent-service
+      mod.qbittorent-storage
+    ];
+  };
+}

modules/nixos/programs/qbittorent/qbittorent.nix

@@ -0,0 +1,20 @@
+{...}: {
+  flake.nixosModules.qbittorent-service = {
+    lib,
+    config,
+    ...
+  }: {
+    options.services.qbittorrent = {
+      mediaDir = lib.mkOption {
+        type = lib.types.path;
+        description = lib.mdDoc ''
+          The directory to create to store qbittorrent media.
+        '';
+      };
+    };
+
+    config = lib.mkIf config.services.qbittorrent.enable {
+      # Main qbittorrent configuration goes here if needed
+    };
+  };
+}

modules/nixos/programs/qbittorent/storage.nix

@@ -0,0 +1,48 @@
+{...}: {
+  flake.nixosModules.qbittorent-storage = {
+    lib,
+    config,
+    ...
+  }: let
+    qbittorent_profile_directory = "/var/lib/qBittorrent/";
+  in {
+    options.services.qbittorrent.impermanence.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = config.services.qbittorrent.enable && config.storage.impermanence.enable;
+    };
+
+    config = lib.mkIf config.services.qbittorrent.enable {
+      storage.datasets.replicate = {
+        "system/root" = {
+          directories."${qbittorent_profile_directory}" = lib.mkIf config.services.qbittorrent.impermanence.enable {
+            owner.name = "qbittorrent";
+            group.name = "qbittorrent";
+          };
+        };
+        "system/media" = {
+          mount = "/persist/replicate/system/media";
+
+          directories."${config.services.qbittorrent.mediaDir}" = lib.mkIf config.services.qbittorrent.impermanence.enable {
+            owner.name = "qbittorrent";
+            group.name = "qbittorrent";
+            owner.permissions = {
+              read = true;
+              write = true;
+              execute = true;
+            };
+            group.permissions = {
+              read = true;
+              write = true;
+              execute = true;
+            };
+            other.permissions = {
+              read = true;
+              write = false;
+              execute = true;
+            };
+          };
+        };
+      };
+    };
+  };
+}