Port configuration for firefox-syncserver on kubernetes via helm-chart

[SandraWeddig]

Dear Nicholas,
I would really apreciate if you could help me.

I did install firefox-syncserver via helm chart at my k3s (installed on Raspberry Pi 4), but can't connect.
The service is available via (changing) clusterIP.
Where and how can I configure, that the service is reachable from anywhere in my network via IP or hostname?

FF_SYNCSERVER_PUBLIC_URL: "http://fox.domain:5000"

Do you have any glue, what's missing in my config?
Thanks for your help and greeting from northern germany,
Sandra