Structuring large/complex Django projects, and using a services layer in Django projects:

Hi all, This is a long post so I’ve copied my two questions for a TL;DR. I’ve also bolded the questions within my post so you can grasp for any context if you think that it’d help your answers. is there any publicly available (paid is ok) literature or training available that covers how to best structure a large, ongoing, mature Django project? Does anyone have any experience writing complex Django applications with a services layer as discussed in the linked style guide? How has it gone ...