Yes, it 100% make more difficult because that particular computer’s external IP would be constantly changing.

Implicit in a question I asked yesterday about your setup, I gave you my (partial) solution to that problem.

Let’s say that computer stays at home and it connects to the external world through a VPN. That computer still lives within your home intranet, which means I can have a static intranet IP assigned to it.

So what I was thinking is that you would first need to make a connection to your intranet from the outside and then you connect to the node using its static intranet IP.

There’s still missing pieces to complete that puzzle, as you need to overcome the fact that your router’s external IP is most likely not static, but it’s a start.