Per-module Entity Relationship Diagrams. Each one shows the models, fields, and relationships that the module owns, plus how it plugs into the rest of the suite.
school_base — students, guardians, teachers, classrooms, academic years, terms.school_academics — subjects, courses, weekly schedules, sessions, attendance.school_exams — grading scales, exams, results, report cards.school_fees — fee items, structures, enrollments, scholarships, invoices.school_library — book catalog, copies, loans, fines.school_canteen — daily menus, prepaid wallets, allergy-aware purchases.school_shop — uniforms, textbooks, supplies (stock-backed).school_transport — buses, routes, stops, student assignments.school_comms — mail templates and automation rules.school_homepage — public landing page at /.For prose-level overviews of what each module does, see the reference/architecture page.