services:
  omni-tools:
    image: iib0011/omni-tools:latest
    container_name: omni-tools
    restart: unless-stopped
    ports:
      - "8489:80"
    networks:
      homelab:
        aliases:
          - omnitools # adding multiple aliases under certain network
          - omni
networks:    # I don't know why but you have to specify the network 2x. In service, and in this tag area..
  homelab:
    name: homelab      # Networks can also be given a custom name
    external: true      # This option causes compose to join the above network instead of making a _default one