I have a form that needs to interact with the DB inbuilt into django. How would I do that in my forms.py file. Do I just use the default sqlite3 built into python or does django have a different way of doing it?

I have written a basic post/get request on the frontend. On the backend, I just need to interact with the database. I do not want to use the inbuilt django auth system as I will need to access the database for other use cases also. Any help is appreciated!