Django Notification HQ - I installed the app manually but no signal is being sent

Question

I have a django app and I wanted to install django-notification-hq (https://github.com/django-notifications/django-notifications)

I wanted to modify some parts of the app so I downloaded the repo and install it.

I first install it using the recommended approach in github (here below) and it all worked.

$ git clone https://github.com/django-notifications/django-notifications
$ cd django-notifications
$ python setup.py sdist
$ pip install dist/django-notifications-hq*

However, I wanted to try a different way (also because I wanted to learn) and add the app like if had developed it entirely.

So

1. I removed everything I did
2. I took the notifications folder inside django-notifications and added it directly to my project.
3. I changed my project settings and add 'notifications.apps.Config',
4. I updated my req.tx and installed necessary libraries

Now, the project runs and nothing breaks....however, no notification is being generated. I followed as much as possible the code and noticed that it's the notify.send() that doesn't send anything.

This makes me think that there is something about signals that I am not doing right?