pip install .
Now you can use it as a ctf command
You can specify templates in ctfcli/templates directory. After that, you have to reinstall the tool with pip.
You can check where the templates are stored finally with ctf templates dir.
When you install the challenge for the first time in CTFd you have to use command:
python3 -m ctfcli challenge install PATH_TO_FOLDER
When you have the challenge installed in your instance, you should use:
python3 -m ctfcli challenge sync PATH_TO_FOLDER