Full-stack certification platform with a tokenized economy, AI-driven content pipeline, and real-time community — designed, built, and operated by one developer.
// live_system_overview
One platform, three coordinated engines
AI content pipeline
Algorithmic mastery per question
Tokenized economy (off-chain)
AI content pipeline
Demand-driven course generation via OpenAI in waves of 30 questions, with an automated lifecycle from draft to active.
Algorithmic mastery per question
A state machine computed from accuracy, consistency and attempt history.
CLIENTReact SPAoffline-ready
APIExpress.js11 domains
DATAFirestoreRTDB presence
INTELLIGENCEOpenAIcontent jobs
Stripe / EUROpenNode / LightningPolygon / Web3GitHub Actions
// architecture
Browser ── React SPA ── Express API ── Firestore ── OpenAI
│ │ │ │
│ localStorage 11 domains RTDB (chat)
│ (offline) feature-flagged presence
└── Stripe / Lightning / Web3 payments
RBAC with numeric priority inheritance
Role enforcement at the route layer with SHA-256 payload hashing for cryptographic idempotency.
React 19Vite 6Node.js 22Express.js
Firebase / FirestoreOpenAI APIStripe
OpenNode (Lightning)Web3 / Polygon
AWS / Google CloudUbuntu ServerPM2
GitHub ActionsVitestPlaywright
255API route handlers
1,825automated tests
126automation scripts
60shared contracts
32lazy-loaded views
308frontend modules
Tokenized economy (off-chain)
Multi-path acquisition and P2P transfers with automatic social scholarship donation.
Multi-provider, multi-exam
Provider-agnostic certification catalog and question banks.
