services:
  backend:
    build: ./backend
    ports:
      - "8080:8080"
    shm_size: "1gb" # prevents Chromium from crashing inside the container
    environment:
      - PORT=8080
      - START_URL=https://www.google.com

  frontend:
    build: ./frontend
    ports:
      - "3000:3000"
    environment:
      # browser talks to the backend directly on the host port
      - NEXT_PUBLIC_WS_URL=ws://localhost:8080
      - WATCHPACK_POLLING=true # reliable hot-reload on Windows-mounted files
    volumes:
      - ./frontend:/app # live-mount source for hot reload
      - /app/node_modules # keep container's node_modules
    depends_on:
      - backend