Why error:externally-managed-environment when installing weconnect-mqtt with pip3?

[Domoberry]

Hi team, with interest found this repo as I'm (as a beginner) trying to link my ID.3 to my Domoticz via mqtt!
When I try to install weconnect-mqtt using pip3 as recommended, I receive an error stating: "error: externally-managed-environment". What could be the cause of this?
More details: I'm using a clean installed 'sandbox' RPI3B with Bullseye Pi OS Lite 64bit, python 3.11.1 and pip 23.0.1.
Current solution: as suggested in some other posts addressing the same error message, I have installed pipx and used that to install weconnect-mqtt.

update 231025: as mentioned, using pipx to install weconnect-mqtt worked ok, Yet, that installation deviates a bit from the normal installallation, requiring some changes in the Autostart weconnect-mqtt.service file. To stay on the same page (and as newbie) I uninstlled the pipx installation as well as pipx itself. Used the '--break-system-packages' option instead. This also worked. Not sure if this has any side effects,

[Domoberry]

Update: This error message might be related to me using Python(3) 3.11.1. In that case using an additional pip option is a workaround:
pip install weconnect-mqtt --break-system-packages.
I have also set up weconnect-mqtt using Python(3) version 3.9.2 in an RPI4 (this Python version was intalled as part of a recent PiOS installation image) and in that case the --break-system-packages workaround was not needed.
Please update in case you know further details :-)