Integration with UDP listener library - how to forward port

I finally found info I was looking for:

  • In devcontainer, you have to edit /.devcontainer/devcontainer.json and change the appPort line to "appPort": [8123, "3333:3333/udp", "7778:7778/udp"],
  • In my “normal instance” which is a Home Assistant VM, it just works! no port magic needed