FIINOR
A configurable multi-tenant school platform: Django/DRF backend, school PWA, public site and a fleet of appliance boxes. Roughly 228,000 lines of Python, 78,000 lines of TS/TSX and 199 test files.
Strict multi-tenancy
The client organisation is derived from the authenticated account and never from a header, with object-level permissions over a unit hierarchy (level → class) with inheritance and descending scope.
Fully configurable
Every institution configures its own categories, fee plans, scales, grading formula engine (a dedicated DSL with French aliases), hierarchical periods and aggregated report cards — with no hard-coded business lists anywhere.
Lifetime offline architecture
Running on an appliance box deployed at the client site: encrypted local replica, RS256-signed licence with a clock that survives power cuts, idempotent and resumable sync journal with Merkle acknowledgement. No secret lives on the client workstation, which always relays to the online backend. The workstation is locked in kiosk mode (no shell access, no system account for the end client).
Functional scope
Teaching, the full financial chain (plans → instalments → transactions → allocations), subscription and quota management by school size, media, notifications, referrals, an EdTech-style revision module (courses/quizzes/exams), and dedicated student / teacher / parent / finance / operations portals.
Full commercial lifecycle
Free trial, mobile payment through LengoPay/CinetPay, in-app renewal, licence lease with a grace period.
