Hey Folks 
I’m trying to setup NixOS as a router which went pretty smooth so far!
But I have one issue…
I need to set up networking.nat.forwardPorts.*.loopbackIPs for NAT Reflection, to be able to access my reverse proxied hosts from my local Network.
This works great as long as I’m entering my current public IP Address there, but my ISP assigns them dynamically which means this changes from time to time and I need to keep track of this in my nix configuration…
Do you guys have any idea on how to achieve this?
Greetings and thank you in advance!