Creating Django repo sub-project

repo is a repository of questions, structured by Discipline (“Math”),
Subject (“Trigonometry”) and Tag (“Water”). A question can have
comments over it, multiple choices options and answers (although,
teachers, be aware that a student may find another valid answer in the
exam).

The overview is: I have my own repo, and I can get questions (plus Tags
plus Disciplines plus Subjects) from others (given authorization if
needed) or create my own questions and push’em to others (like pull
request in GItHub).

Subject can contain multiple sub Subjects (“Analytic Geometry”
contains “Ellipsis Definition”).

A Subject is contained primarily by one Discipline, although it can
have secondary Disciplines (Subject “Syntax” is from Discipline
“Grammar”, but also from “Math”).