Decided to go with a new production-like run. Networking really stumps
over for the past days. :(
I'll eventually learn if I go with the simplest examples as I learn
along configuring an Ubuntu-based system in the meantime then translate
it to my NixOS config.
Currently, the networking set is very messy. It is better to contain
them into another attribute set and categorizing them by the interfaces
that is supposed to contain them. I should've done this some time ago.
We're making some of them completely on the private network. This way,
they can only be accessed once we're in a tunneling service like
Wireguard or OpenVPN.
