I guess I'm a little surprised that the Django REST Framework isn't mentioned, since I thought that's the go-to for pretty much everyone for this task. Certainly this post's code is lighter weight if all you need to do is send some data out of Django.
The problem with his approach is that it'll always expose ALL the fields of a model to the frontend, like hashed passwords, and can come at a performance cost if the queryset was run with `.only("some", "fields")`. This can be tolerable for small projects but it doesn't scale too well on the long term...
https://www.django-rest-framework.org/api-guide/serializers/...