NPM and DNS over TLS

Hi

I currently use nginx in my efforts to secure my dns traffic. via DoT. I used the following guide to set it up and it works like a bomb. I also make use of webmin for monitoring and basic admin tasks. I would like to redirect port 10000 to webmin, which it runs on natively but can be changed. I would like my request to the to look something like https://mydomain.example/webmin instead of the https://public-ip:10000. I have tried and gave up on trying to hack configs together from various sources to make nginx do the redirect for me without using npm. I would really like to use npm for both of my needs. According to the documentation my current Nginx setup will break. I can redo my server and install npm but, how would i integrate the two? I basicly listen on port 80 and the it gets redirected to port 853 to do the DoT part. Would someone be so kind as to try and assist me with a integration if possible.

Kind Regards

Rudi