Serve addon webui through nginx?

Hello
I just installed nginx; so now I’m kind of trying to assign everything and the toaster a separate dns.
I think it would be superhelpful if I could add Z2MQTT webui and MusicAssistant webui as a separate URL, so I can navigate directly to those.
My NGINX install is not part of HA.

Is there a way to achieve this? as far as I see there’s no way to access those webui’s directly?
i think the question basically is: how can I access the webui or expose the port through HAOSS? (using http://ha_ip:8485 does not work)

I think you need the 8099 port and you have to set it in the addons config page, network section for Z2MQTT. Music Assistant doesn’t made for such a thing I guess.