Hello everyone! I don't exactly know if this is the right place to ask what I'm looking for, nor do I know exactly what it is that I need, which makes looking it up myself quite difficult.

Right now, I have a decent server at home in which I host a number of web apps, including Nextcloud and Wireguard amongst others. This server is accessed through a dynamic DNS managed by Cloudflare using the subdomain "server". Every app has its own port, so you'd access, for example, Nextcloud, typing the address "server.domain.tld:2222".

What I want to do, is to set up a subdomain list from inside the server so that all traffic is sent through a single port, and filtered through the subdomain. Using the same example as before, I'd like to access Nextcloud with the address "nextcloud.server.domain.tld:80". This would definitely be super helpful for managing my WebApps from outside my network, as well as making it easier to setup HTTPS and enable Cloudflare's proxy.

Any help is very much appreciated! Thank you for taking your time to read my post and thank you very much beforehand for your help