$ pip install --user poetry

$ git clone 
$ cd 

$ poetry install
$ poetry shell
# Activating the virtual environment

$ poetry add <package>
# Add dependencies

$  poetry add --dev <package>
# Add package as development dependency

$ domjudge-tool-cli general config https://domjudge.example.dev

$ domjudge-tool-cli general check                                            
Success connect API v4.

$ domjudge-tool-cli users user-list