celery -A workers worker --loglevel=INFO -c 2
...
File "/Users/USERNAME/.pyenv/versions/3.8.5/envs/notifications38/lib/python3.8/site-packages/kombu/asynchronous/http/curl.py", line 41, in __init__
raise ImportError('The curl client requires the pycurl library.')
ImportError: The curl client requires the pycurl library.