Xyz.local and Nginx reverse proxy setup - not resolved

Hi all,

since days I am trying to setup a Nginx proxy inside my local network (I would not like to forward any ports for having access from the outside) - so far I failed and would kindly request your assistance.

Idea:
Like ‘homassistant.local’ works to open 192.168.178.xxx:8123 within my local IP range, I would like to setup the reverse proxy so that if I open e.g. ‘xyz.local’ a specific homeassistant addon is opened (e.g. 192.168.178.xxx:9192).

Understanding so far:
Within the Nginx Proxy Manager I have setup a proxy:
grafik
But when accessing http://www.xyz.local/ I receive the response that the server could not be found. What have I done wrong, what is missing?

For a short moment I have also added the xyz.local to the routers’ whitelist (to not block DNS revinding). Besides I tried a different setup with a subdomain xyz.homassistant.local but both also failed.
grafik

Would I need to setup anything additionally e.g. on a local DNS server like Adguard home?

It would be awesome if someone could give me a hint. All examples I have found did not help as mostly focusing on duckdns. I am pretty sure my request is a simple thing for most of you.

Thanks!

I’d say so, otherwise how should your devices know that xyz.local should be resolving to your HA instance running NGINX?