hosts/ni: modularize more parts of hardware config

hosts/ni/default.nix

@@ -67,26 +67,12 @@
   # The keyfile required for the secrets to be decrypted.
   sops.age.keyFile = "/var/lib/sops-nix/key.txt";
 
-  # Get the latest kernel for the desktop experience.
-  boot.kernelPackages = pkgs.linuxPackages_latest;
-
   # Adding a bunch of emulated systems for cross-system building.
   boot.binfmt.emulatedSystems = [
     "aarch64-linux"
     "riscv64-linux"
   ];
 
-  # We're using some better filesystems so we're using it.
-  boot.initrd.supportedFilesystems = [ "btrfs" ];
-  boot.supportedFilesystems = [ "btrfs" ];
-
-  services.btrfs.autoScrub = {
-    enable = true;
-    fileSystems = [
-      "/mnt/archives"
-    ];
-  };
-
   # My custom configuration with my custom modules starts here.
   profiles = {
     i18n.enable = true;
@@ -170,6 +156,5 @@
     longitude = 121.0;
   };
 
-  services.auto-cpufreq.enable = true;
   system.stateVersion = "23.11"; # Yes! I read the comment!
 }

hosts/ni/hardware-configuration.nix

@@ -6,6 +6,9 @@
     ./modules/hardware/traditional-networking.nix
   ];
 
+  # Get the latest kernel for the desktop experience.
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
   boot.initrd.availableKernelModules =
     [ "xhci_pci" "ahci" "nvme" "usb_storage" "uas" "sd_mod" ];
   boot.initrd.kernelModules = [ ];
@@ -45,6 +48,17 @@
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault true;
 
+  # We're using some better filesystems so we're using it.
+  boot.initrd.supportedFilesystems = [ "btrfs" ];
+  boot.supportedFilesystems = [ "btrfs" ];
+
+  services.btrfs.autoScrub = {
+    enable = true;
+    fileSystems = [
+      "/mnt/archives"
+    ];
+  };
+
   # Set up printers.
   services.printing = {
     enable = true;
@@ -56,6 +70,9 @@
     ];
   };
 
+  # Make your CPU more useful.
+  services.auto-cpufreq.enable = true;
+
   # Extend the life of an SSD.
   services.fstrim.enable = true;
 }