Permission denied: '/tmp/ngrok/ngrok'

Hello,
How to make flask-ngrok work with Datalore?
It looks like some ports closed

Hi @serg,

it seems that the latest version of flask-ngrok was not pushed to PyPI, changing !pip install flask-ngrok to !wget https://raw.githubusercontent.com/gstaff/flask-ngrok/master/flask_ngrok.py (it’s a single file) fixes the issue for me.

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thank you!
that helped!