Runtime
Ubuntu20.04.6 LTSOperating system
nginx1.18.0Reverse proxy / static site
Node.jsv22.16.0Server-side runtime
Python3.8.10Server-side runtime
SQLite3.31.1Lightweight database
Redis5.0.7Cache
Frontend
Next.js14 / 15Server-side rendered site
React18 + Radix UIComponent Library
Vue3Single-page application
three.js—3D display
Pannellum—720° panorama
Backend
NestJS10.4Structured Server Side
Express—Lightweight service
Flask3.xPython services
SQLAlchemy2.xORM
Drizzle ORM0.45TypeScript ORM
PyJWT2.8Token authentication
Data & storage
SQLite—Single-node business database
PostgreSQL16Relational database
Redis—Caching and Queues
S3-compatible object storage—Documents & assets
Client
AndroidNativeMobile App
WebXR—Browser VR
PWA—Works Offline
Maintenance
acme.sh3.1.4Automatic Certificate Renewal
systemd—Service management
PM2—Node process management
iptables—Access Control
Note: components are selected per project; the table above is our main tech stack and does not mean every project uses all of it.
