Backend
- Django 5 + Ninja: REST API, WebSocket
- PostgreSQL 16 + PostGIS: Main DB, geodata
- TimescaleDB: IoT telemetry, time series
- Redis: Cache, sessions, rate limiting
- Neo4j: Graph for barter cycles
Frontend
- Nuxt 4 (SSR): Vue 3 + TypeScript
- MapLibre GL JS: Interactive maps
- Lucide: Icons
- Tailwind CSS: Styling
Communications
- Matrix Synapse: E2E encrypted chat
- Jitsi Meet: Video calls
- Breez SDK Spark: Lightning wallet
- Traccar: GPS tracking
- Mailcow + SOGo: Email server
Maps & Geocoding
- Martin: Tile server (PostGIS → MVT)
- Pelias: Planet-wide geocoding
- Valhalla: Road routing engine
- MOTIS: Transit routing (GTFS)
- OpenStreetMap: Source data
Infrastructure
- Docker Compose: External services
- Nginx: Reverse proxy, SSL
- Systemd: Process management
- Gitea: Git hosting
- Capacitor: Mobile apps (Android/iOS)