After messing with this privately with a local XML file, I got this working so published the XML to the Community Apps so it’s broadly available for anyone on Unraid.
If you’re on Unraid, you know what the above UI is within Community Apps 
I’m maintaining the “application template” in my github repo, until some future time that this wants to be officially supported by n8n. I’m open to PRs.
https://raw.githubusercontent.com/tmchow/unraid-docker-templates/master/n8n.xml