{ inputs, ... }: {
  flake.nixosModules.desktopShellDmsOptions = { lib, ... }: {
    options.chiasson.desktop.shells.dms = {
      enableGpuTemp = lib.mkOption {
        type = lib.types.bool;
        default = true;
        description = "GPU temp in DMS bar.";
      };
      obsidianVaults = lib.mkOption {
        type = lib.types.listOf lib.types.str;
        default = [ ];
        example = [ "/mnt/zimaos/Obsidian/Home/.obsidian" ];
        description = "Vault `.obsidian/` dirs; matugen writes `<vault>/snippets/matugen.css`.";
      };
      extraRightBarWidgets = lib.mkOption {
        type = lib.types.listOf lib.types.attrs;
        default = [ ];
        description = "Extra right-bar widgets merged into the first-run DMS settings seed.";
      };
      rebuildCommand = lib.mkOption {
        type = lib.types.nullOr (lib.types.listOf lib.types.str);
        default = null;
        example = [ "sudo" "nixos-rebuild" "switch" "--flake" ".#14900k" ];
        description = "Command used by DMS nix-monitor widget for rebuild actions.";
      };
      defaultSeedDir = lib.mkOption {
        type = lib.types.nullOr lib.types.path;
        default = null;
        example = ./dms-defaults;
        description = ''
          Host-specific first-run DMS config seed directory. When set, copies
          `settings.json` (required) and `plugin_settings.json` (optional) from this
          directory into `~/.config/DankMaterialShell/` on fresh profiles.
          Replaces the bundled `default-settings.nix` template for `settings.json`.
        '';
      };
      bundleThirdPartyPlugins = lib.mkOption {
        type = lib.types.bool;
        default = true;
        description = ''
          Install bundled DMS plugins from flake inputs (third-party + chiasson).
          Disable individual plugins in DMS settings; set this to false to skip all bundled plugins.
        '';
      };
    };
  };

  flake.homeManagerModules.desktopShellDms = {
    lib,
    osConfig ? { },
    ...
  }:
  let
    cfg = lib.attrByPath [ "chiasson" "desktop" "shells" "dms" ] { } osConfig;
    selectedShell = lib.attrByPath [ "chiasson" "desktop" "shell" ] null osConfig;
    dmsEnabled = selectedShell == "dms";
    hostName = lib.attrByPath [ "networking" "hostName" ] "nixos" osConfig;
    rebuildCommand =
      if (cfg.rebuildCommand or null) != null then
        cfg.rebuildCommand
      else
        [ "sudo" "nixos-rebuild" "switch" "--flake" ".#${hostName}" ];
  in
  {
    imports = [
      ./home-manager/default.nix
    ];

    config = lib.mkIf dmsEnabled {
      programs.nix-monitor.rebuildCommand = rebuildCommand;
    };
  };
}