Of course, a service map comes handy, just another simple way of getting it done. What I meant with the proxy was using e.g. jellyfin.example.com and portainer.example.com instead of the ports. Not to mention that two apps might have the same default port.

For those with a multi-machine setup, like running the easy stuff on a 1L machine and having backupservice at multiple locations or the LLMs on a big setup that might even use WakeOnLan the proxy will keep you from having to remember the IPs as well.

You could do that as long as you protected that page from prying eyes.

Many use browser history so type a few characters and hit enter rather than navigating to an index page, locating a link, and clicking it.

Easier to wire up services to each other with domain names, serviceA.domain.tld is obvious, domain.tld:1234 is not

Another reason to have a domain for each is to get TLS for each service in a standard way.