Organization of paid django subscriptions?

Question

Django

Hello.
I am making a user subscription system in a React + Django project (trial mode, and paid subscriptions).
Perhaps someone faced a similar problem. What solution did you choose? Samopis (assign users to groups from django.contrib.auth, each group is a specific subscription, use celery to check the expiration date, etc.). Or did they use a ready-made solution (like stripe, for example)?
Thank you in advance.