Perhaps fix networking?

hosts/common/default.nix

@@ -52,7 +52,7 @@ in {
   # The global useDHCP flag is deprecated, therefore explicitly set to false here.
   # Per-interface useDHCP will be mandatory in the future, so this generated config
   # replicates the default behaviour.
-  networking.useDHCP = false;
+  networking.useDHCP = true;
 
   console = {
     useXkbConfig = true;

hosts/common/graphical/default.nix

@@ -10,8 +10,6 @@
   hardware.bluetooth.enable = true;
   hardware.pulseaudio.enable = false;
   services.blueman.enable = true;
-  networking.networkmanager.enable = true;
-  programs.nm-applet.enable = true;
   programs.partition-manager.enable = true;
 
   security.pam.services.swaylock = {};

hosts/elderbug/configuration.nix

@@ -34,8 +34,7 @@
   hardware.nvidia.modesetting.enable = true;
 
   networking.hostName = "elderbug"; # Define your hostname.
-  networking.interfaces.enp5s0.useDHCP = true;
-  networking.interfaces.wlp6s0.useDHCP = true;
+  networking.interfaces.enp6s0.useDHCP = true;
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions