Boblee24/african-msdi

# African MSDI — Federated Marine Spatial Data Infrastructure > A working prototype demonstrating continental-scale hydrographic data federation across Africa. > Built for the NHA / 2026 World Hydrography Day Young Ocean Scholars Competition. **Live demo:** your-app.vercel.app --- ## What this demonstrates One complete user journey that proves the paper's argument: 1. **Three national nodes** (Nigeria/NHA, Kenya/KMA, South Africa/SANHO) visible on one Leaflet map 2. **S-100 API responses** — click any point → see mock IHO S-102 compliant JSON any ship nav system could consume 3. **CSB submission** — submit a depth reading as a fisherman, watch ML validation run, see result on map 4. **RBAC demo** — toggle Admin View to simulate authenticated NHO institutional access (data decimation) 5. **Architecture diagram** — SVG showing the federated node topology for the visual presentation --- ## Setup (≈ 15 minutes) ### 1. Clone and install ```bash git clone github.com cd african-msdi npm install ``` ### 2. Create a Neon database 1. Go to **neon.tech** and sign up (free tier is sufficient) 2. Click **"New Project"** 3. Name it `african-msdi`, choose the closest region 4. Once created, go to **Connection Details** 5. Copy the **Connection string** (starts with `postgres://...`) ### 3. Configure environment ```bash cp .env.example .env.local ``` Open `.env.local` and paste your Neon connection string: ``` DATABASE_URL=postgres://username:password@ep-xxx.us-east-2.aws.neon.t… ``` ### 4. Seed the database This creates the tables and inserts 60 realistic depth points across 3 national nodes: ```bash npm run seed ``` Expected output: ``` 🌊 Initialising African MSDI database schema... 🗑️ Clearing existing dataset rows... 📍 Seeding 60 depth points across 3 national nodes... ✅ Seed complete: 🟢 Nigeria (NHA): 20 points 🔵 Kenya (KMA): 20 points 🔴 South Africa (SANHO): 20 po …