Basic tech stack:

• Node.js runtime
• Express.js API server
• React frontend
• PostgreSQL database

frontend/    React + Vite frontend
backend/     Node.js + Express API
docker-compose.yml  Local PostgreSQL database

1. Install dependencies:

npm.cmd install

2. Create local env files:

Copy-Item backend/.env.example backend/.env
Copy-Item frontend/.env.example frontend/.env

3. Start PostgreSQL:

npm.cmd run db:up

4. Start the app:

npm.cmd run dev

Frontend: http://localhost:5173

Backend health check: http://localhost:3000/api/health

Swagger API docs: http://localhost:3000/api-docs

OpenAPI YAML: http://localhost:3000/openapi.yaml

The server creates a commands table automatically on startup. The sample UI sends commands to the server and stores them in PostgreSQL.