version: '3.5'
services:
  youtube-dl-server:
    image: "nbr23/youtube-dl-server:latest"
    container_name: youtube-dl-server
    volumes:
      # - $HOME/youtube-dl:/youtube-dl
      - /docker-containers/youtube-dl-server/youtube-dl:/youtube-dl
      - /docker-containers/youtube-dl-server/config.yml:/app_config/config.yml:ro # Overwrite the container's config file with your own configuration
    restart: always
    networks:           # Specify network for container
      -  homelab

networks:    # I don't know why but you have to specify the network 2x. In service, and in this tag area..
  homelab:
    external: true      # This option causes compose to join the above network instead of making a _default one (supposedly) also forces to join instead of creating one