Year of the Voice - Chapter 2: Let's talk

any idea on how to pass model/language in docker-compose. the below is not working

## wyoming
  whisper:
    container_name: whisper
    image: rhasspy/wyoming-whisper
    volumes:
      - /root/docker/whisper:/data
    environment:
      - TZ=Australia/Adelaide
      - model=medium-int8
      - language=en
    restart: unless-stopped
    network_mode: cust_bridge
    ports:
      - 10300:10300

  piper:
    container_name: piper
    image: rhasspy/wyoming-piper
    volumes:
      - /root/docker/piper:/data
    environment:
      - TZ=Australia/Adelaide
      - voice=en-us-lessac-medium
    restart: unless-stopped
    network_mode: cust_bridge
    ports:
      - 10200:10200