install ok, but execute shows 'The name is not activatable' error.

[notterme]

Ran the install process as per the README:

Successfully built bluetti_mqtt
Installing collected packages: crcmod, paho-mqtt, dbus-fast, bleak, aiomqtt, bluetti_mqtt
Successfully installed aiomqtt-2.3.0 bleak-0.22.3 bluetti_mqtt-0.16.0 crcmod-1.7 dbus-fast-2.24.4 paho-mqtt-2.1.0

But on executing 'bluetti-mqtt --scan' I'm greeted with the following error messages:

(venv) [me@myhost venv]$ bluetti-mqtt --scan
Scanning....
Traceback (most recent call last):
  File "/home/me/bin/bluetti/venv/bin/bluetti-mqtt", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bluetti_mqtt/server_cli.py", line 156, in main
    cli.execute()
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bluetti_mqtt/server_cli.py", line 68, in execute
    asyncio.run(scan_devices())
  File "/usr/lib/python3.12/asyncio/runners.py", line 194, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bluetti_mqtt/bluetooth/__init__.py", line 17, in scan_devices
    devices = await BleakScanner.discover()
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bleak/__init__.py", line 320, in discover
    async with cls(**kwargs) as scanner:
               ^^^^^^^^^^^^^
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bleak/__init__.py", line 158, in __aenter__
    await self._backend.start()
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/scanner.py", line 168, in start
    manager = await get_global_bluez_manager()
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/manager.py", line 1058, in get_global_bluez_manager
    await instance.async_init()
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/manager.py", line 286, in async_init
    assert_reply(reply)
  File "/home/me/bin/bluetti/venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/utils.py", line 20, in assert_reply
    raise BleakDBusError(reply.error_name, reply.body)
bleak.exc.BleakDBusError: [org.freedesktop.DBus.Error.ServiceUnknown] The name is not activatable
(venv) [me@myhost venv]$ 

Did I miss installing some dependency?

[notterme]

Ah, I think I forgot to install bluez.. It is running now. Sorry for the confusion.

Since I'm super-new at using mqtt from the commandline, how do I query the current state of the battery? I'm not using anything HA or node-red.

I've got the client connected to the broker:

(venv) [me@myhost bluetti]$ bluetti-mqtt --broker 127.0.0.1 F4:D9:19:48:1F:DE
2024-11-21 20:47:46 INFO     Connecting to MQTT broker...
2024-11-21 20:47:46 INFO     Starting to poll clients...
2024-11-21 20:47:46 INFO     Connecting to clients: ['F4:D9:19:48:1F:DE']
2024-11-21 20:47:46 INFO     Connected to MQTT broker
2024-11-21 20:47:51 INFO     Connected to device: F4:D9:19:48:1F:DE
2024-11-21 20:47:51 INFO     Device F4:D9:19:48:1F:DE has name: EB3A2314000970412
2024-11-21 20:47:52 INFO     Sent discovery message of EB3A-2314000970412 to Home Assistant

and I've subscribed to the topic:
$ mosquitto_sub -h localhost -t "/bluetti/state/F4:D9:19:48:1F:DE/total_battery_percent"

But I'm completely stuck with getting it to trigger spitting out a percentage.

mosquitto_pub -h 127.0.0.1 -t "bluetti/command/F4:D9:19:48:1F:DE" -m "total_battery_voltage"

produces this on the bluetti-mqtt client console:
WARNING unknown command topic: bluetti/command/F4:D9:19:48:1F:DE

..and this on journalctl -u mosquitto -f

Nov 21 20:54:39 myhost mosquitto[812]: 1732182879: New connection from 127.0.0.1:40740 on port 1883.
Nov 21 20:54:39 myhost mosquitto[812]: 1732182879: New client connected from 127.0.0.1:40740 as auto-AA16A47A-4249-7D79-6263-D961832AE725 (p2, c1, k60).
Nov 21 20:54:39 myhost mosquitto[812]: 1732182879: Client auto-AA16A47A-4249-7D79-6263-D961832AE725 disconnected.

I checked the READMEs from warhammerkid and this one, but they don't provide any examples on how to interrogate the bluetti using mqtt.