I am trying to structure my code and I just want to sort my models into different subfolders, however I can't get it to work

This is what my structure looks like

The custom and the inherits folder both have their own __init__.py

This is what the models/__init__.py looks like

and in the subfolders __init__ .py, I import them like this:

But upon starting I keep getting the error

AssertionError: Invalid import of it should start with 'odoo.addons'.addons.rectanglemaps.models.the model

I have already tried to import them with odoo.addons but that just produces another error

It can't be that hard right? How to structure the python code?