Serve Flask application with GUnicorn on Localhost

I am a noob in this area so please bear with my dumb questions.

I have a Flask application and I want to run that with GUnicorn on my localhost. I looked on Google but almost every tutorial requires a domain name and there isn't much documentation for running it on a mac.

1. Please tell how can I run the app with GUnicorn on my mac?
2. I want to use https for the secure communication so how can I change the configuration of Gunicorn to do so?

Any help will be great.

Cheers