To help create documentation

At first I wanted to add this note only to myself, since I have a permanent problem with the documentation in the project. But decided to share with everyone.
My project is large, includes many subsystems. Requirements are constantly changing, and the style of work is closer to agile.
As a result, documentation quickly loses relevance and I am constantly looking for methods to maintain this very relevance.

Therefore, if your project is on Django, then an addition to the actual database architecture of your application will help you in a few seconds : django-graphviz ( link )

An example of what is obtained at the exit (from the official page):


If you are more experienced in these matters, please share your personal practical experience in the comments. I think it will be useful to everyone who runs and maintains simple sites and complex ones.