---
version: "3"

services:
  fireflyiii:
    image: fireflyiii/core:version-5.5.11
    container_name: fireflyiii
    hostname: fireflyiii
    restart: always

    env_file:
      - env/fireflyiii.env
    ports:
      - "3050:8080"
    volumes:
      - ./etc/fireflyiii/var/www/html/storage/upload:/var/www/html/storage/upload
...