Installing qt designer auf raspberry Pi 5

After getting some experience with Qt6 using the examples in the book, I am now trying to install the qt designer on a raspberry pi 5 desktop.
I followed the instructions in the book. The installation seems to work, but how can I call the designer?
Any suggestions?

Hi @Ahmad
If you installed inside virtualenv (recommended way):

(test1) PS C:\Users\bs_user\Projects\test1> .\.venv\Scripts\pyqt6-tools
Usage: pyqt6-tools [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  designer
  installuic
  qmlscene
  qmltestrunner

I have only windows machine avaliable, but under Linux it is .\.venv\bin\pyqt6-tools, anyway if you activate venv pyqt6-tools executable should be available, then you can run pyqt6-tools designer.