django smart ratelimit compatibility with postgresql

I finally managed to deploy my django app and connect a domain name and cloudfalre to it,

and as an extra measure of security, I’m thinking of adding an extra layer of security by limiting the rate of requests of some of the app views like the login pathway.

after a little bit of search, I found the django package, django-smart-ratelimit 0.8.9 here in the link below, which I think is the best choice among the other competitors.

django-smart-ratelimit · PyPI

but before using it in my app, I have a question, in the package docs I think it states that the app should have a reddis and cahed backend I think while my app is a traditional one that is based on a postgresql dabase.

So, can I use this package directly or I should modify my app in some way in order to use this package ?