services.home-assistant = {
        # ...
        extraComponents = [
          # ...
          # voice assistant
          "piper"
          "whisper"
          "wake_word"
          "wyoming"
        ];
      };

      services.wyoming = {
        faster-whisper.servers.whisper = {
          enable = true;
          uri = "tcp://127.0.0.1:10300";
          device = "cpu";
          language = "en";
          model = "medium-int8";
        };
        openwakeword = {
          enable = true;
          uri = "tcp://127.0.0.1:10400";
        };
        piper.servers.piper = {
          enable = true;
          uri = "tcp://127.0.0.1:10200";
          voice = "en_GB-semaine-medium";
        };
      };