Automatically set networking hostname

hosts/decryption/default.nix

···
     nvidiaBusId = "PCI:1:0:0";
   };
 
-  networking.hostName = "decryption";
-
   system.stateVersion = "25.05";
 }

hosts/encryption/default.nix

···
 
   time.timeZone = "US/Eastern";
 
-  networking.hostName = "encryption";
-
   system.stateVersion = "24.05";
 }

lib/mkSystem.nix

···
 }:
 
 {
-  name,
+  hostName,
   system,
   extraModules ? [ ],
   isLaptop ? false,
···
     inputs.disko.nixosModules.disko
 
     ../hosts/${name}
+    ../hosts/${hostName}
+
+    {
+      networking.hostName = hostName;
+    }
   ]
   ++ inputs.nixpkgs.lib.optional isLaptop ../hardware/laptop.nix
   ++ extraModules;
···
       pkgs
       pkgs-unstable
       isLaptop
+      hostName
       ;
 
     lanzaboote = inputs.lanzaboote;

outputs.nix

···
 
   nixosConfigurations = {
     encryption = mkSystem {
-      name = "encryption";
+      hostName = "encryption";
       system = "x86_64-linux";
     };
 
     decryption = mkSystem {
-      name = "decryption";
+      hostName = "decryption";
       system = "x86_64-linux";
 
       isLaptop = true;