Nix : Add laptop.

.config/linux/system/laptop/Configuration.nix

@@ -0,0 +1,24 @@
+{ config, pkgs, ... }:
+
+{
+	imports = [
+		./HardwareConfiguration.nix
+		# ./MsiKeyboard.nix
+		../Common.nix
+		../AmdGpu.nix
+		../PowersaveAmd.nix
+		../Print.nix
+		../Gnome.nix
+		../Voronind.nix
+		../Dasha.nix
+		../Flatpak.nix
+		../DockerRootless.nix
+		../Sshd.nix
+	];
+
+	# Network.
+	networking.hostName = "work";
+
+	# Do not touch ever.
+	system.stateVersion = "23.11";
+}

.config/linux/system/laptop/HardwareConfiguration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/a3ecc55c-8c7d-4307-9c4f-478201e496b2";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/61B7-2F83";
+      fsType = "vfat";
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp5s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp4s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

.config/linux/system/laptop/MsiKeyboard.nix

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+{ pkgs, ... }:
+
+{
+	environment.systemPackages = with pkgs; [ haskellPackages.msi-kb-backlit ];
+}