It’s interesting how different people have different approaches … I migrate from Caddy to Traefik because I found it magical … Whenever I need to add another selfhosted service I just adapt a docker-compose like this one

version: '3.8'

services:
  homeassistant:
    container_name: homeassistant
    image: ghcr.io/home-assistant/home-assistant:stable
    #image: homeassistant/raspberrypi4-homeassistant:stable
    volumes:
      - ./media/:/media
      - ./config/:/config
      - /etc/localtime:/etc/localtime:ro
    environment:
      - TZ=${TZ}
    restart: unless-stopped
    networks:
      - t2_proxy
      - backend
    labels:
      - traefik.enable=true
      - traefik.docker.network=t2_proxy
      - traefik.http.routers.homeassistant.rule=Host(`home.mydomain.bla.bla`)
      - traefik.http.routers.homeassistant.entrypoints=websecure
      - traefik.http.routers.homeassistant.tls.certresolver=myresolver
      - traefik.http.services.homeassistant.loadbalancer.server.port=8123

networks:
  backend:
    external: true
  t2_proxy:
    external: true

As you can see I just need to change the host and the port in the labels to have a new domain pointing to the right port … I wasn’t able to find an easier way to add a new service to caddy