manatee: Add audiobookshelf module

hosts/manatee/modules/audiobookshelf/default.nix

@@ -0,0 +1,29 @@
+{ lib, config, ... }:
+let
+  enabled = config.mod.audiobookshelf.enable;
+in
+{
+  options = {
+    mod.audiobookshelf = {
+      enable = lib.mkEnableOption "Enable audiobookshelf module";
+    };
+  };
+
+  config = lib.mkIf enabled {
+    users.users.audiobookshelf = {
+      isSystemUser = true;
+      description = "audiobookshelf";
+      group = "storage";
+    };
+
+    services.audiobookshelf = {
+      enable = true;
+
+      user = "audiobookshelf";
+      group = "storage";
+
+      host = "0.0.0.0";
+      port = 8000;
+    };
+  };
+}