I stayed with podman compose. Do the quadlets specification have an advantage?

Fedora server has cockpit preinstalled. That’s what I use. With cockpit it’s very easy to adjust the firewall.

It’s not a direct solution to your problem but may show you what else is possible

It’s brightest on qled 😂

Sure you need port 22 at the end? did you try without it?

Thanks! Meaning, this is no grafana but third party integration