chore!: prepare for multi-host config

hosts/selune/configuration.nix

@@ -0,0 +1,105 @@
+{ pkgs, ... }:
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  # Use flakes.
+  nix.settings.experimental-features = "nix-command flakes";
+
+  # Automatic updating.
+  system.autoUpgrade.enable = true;
+  system.autoUpgrade.dates = "weekly";
+
+  # Automatic cleanup.
+  nix.gc.automatic = true;
+  nix.gc.dates = "daily";
+  nix.gc.options = "--delete-older-than 10d";
+  nix.settings.auto-optimise-store = true;
+
+  # Bootloader.
+  boot.loader = {
+    systemd-boot.enable = true;
+    efi.canTouchEfiVariables = true;
+  };
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.initrd.luks.devices."luks-374c6259-18c4-462b-9f30-9c9648de00ae".device =
+    "/dev/disk/by-uuid/374c6259-18c4-462b-9f30-9c9648de00ae";
+
+  networking = {
+    hostName = "nixos";
+    networkmanager.enable = true;
+  };
+
+  # Set your time zone.
+  time.timeZone = "Europe/Paris";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_GB.UTF-8";
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "fr_FR.UTF-8";
+    LC_IDENTIFICATION = "fr_FR.UTF-8";
+    LC_MEASUREMENT = "fr_FR.UTF-8";
+    LC_MONETARY = "fr_FR.UTF-8";
+    LC_NAME = "fr_FR.UTF-8";
+    LC_NUMERIC = "fr_FR.UTF-8";
+    LC_PAPER = "fr_FR.UTF-8";
+    LC_TELEPHONE = "fr_FR.UTF-8";
+    LC_TIME = "fr_FR.UTF-8";
+  };
+
+  services.xserver = {
+    # Use X11.
+    enable = true;
+    # Set keyboard layout in X11.
+    xkb.layout = "fr";
+    xkb.variant = "ergol";
+  };
+  # Use GNOME.
+  services.displayManager.gdm.enable = true;
+  services.desktopManager.gnome.enable = true;
+
+  services.gnome.gnome-browser-connector.enable = true;
+  # Use CUPS for printing.
+  services.printing.enable = true;
+  # Use pipewire for audio.
+  services.pulseaudio.enable = false;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+  };
+  services.openssh.enable = true;
+
+  # Configure console keymap.
+  console.keyMap = "fr";
+
+  # Define a user account.
+  users.users.hms = {
+    isNormalUser = true;
+    description = "hms";
+    extraGroups = [
+      "networkmanager"
+      "wheel"
+    ];
+    packages = [ ];
+  };
+
+  nixpkgs = {
+    overlays = [ ];
+    config.allowUnfree = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    helix
+    wget
+    gnumake
+    clang
+  ];
+
+  programs.gnupg.agent = {
+    enable = true;
+    enableSSHSupport = true;
+  };
+
+  system.stateVersion = "25.11";
+}

hosts/selune/hardware-configuration.nix

@@ -0,0 +1,53 @@
+# 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,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "thunderbolt"
+    "vmd"
+    "nvme"
+    "usb_storage"
+    "usbhid"
+    "sd_mod"
+    "rtsx_pci_sdmmc"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/mapper/luks-de976821-5bfe-4c34-92ff-5d4d607e42c4";
+    fsType = "ext4";
+  };
+
+  boot.initrd.luks.devices."luks-de976821-5bfe-4c34-92ff-5d4d607e42c4".device =
+    "/dev/disk/by-uuid/de976821-5bfe-4c34-92ff-5d4d607e42c4";
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/6137-E7B4";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/mapper/luks-374c6259-18c4-462b-9f30-9c9648de00ae"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}