Rename hardware config in flake

configuration/common.nix

@@ -0,0 +1,112 @@
+{ pkgs, ... }:
+{
+  # NixOS version.
+  system.stateVersion = "25.05";
+
+  # Enable flakes.
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
+
+  # Allow unfree packages.
+  nixpkgs.config.allowUnfree = true;
+  
+  # Set time zone.
+  time.timeZone = "Australia/Perth";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_AU.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "en_AU.UTF-8";
+    LC_IDENTIFICATION = "en_AU.UTF-8";
+    LC_MEASUREMENT = "en_AU.UTF-8";
+    LC_MONETARY = "en_AU.UTF-8";
+    LC_NAME = "en_AU.UTF-8";
+    LC_NUMERIC = "en_AU.UTF-8";
+    LC_PAPER = "en_AU.UTF-8";
+    LC_TELEPHONE = "en_AU.UTF-8";
+    LC_TIME = "en_AU.UTF-8";
+  };
+
+  # Configure keymap in X11.
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  # Use fish shell
+  programs.fish = {
+    enable = true;
+    interactiveShellInit = ''
+      function n --wraps nnn --description 'support nnn quit and change directory'
+          if test -n "$NNNLVL" -a "$NNNLVL" -ge 1
+              echo "nnn is already running"
+              return
+          end
+
+          if test -n "$XDG_CONFIG_HOME"
+              set -x NNN_TMPFILE "$XDG_CONFIG_HOME/nnn/.lastd"
+          else
+              set -x NNN_TMPFILE "$HOME/.config/nnn/.lastd"
+          end
+
+          command ${pkgs.nnn}/bin/nnn $argv
+
+          if test -e $NNN_TMPFILE
+              source $NNN_TMPFILE
+              rm -- $NNN_TMPFILE
+          end
+      end
+    '';
+  };
+
+  programs.bash = {
+    interactiveShellInit = ''
+      if [[ $(${pkgs.procps}/bin/ps --no-header --pid=$PPID --format=comm) != "fish" && -z ''${BASH_EXECUTION_STRING} ]]
+      then
+        shopt -q login_shell && LOGIN_OPTION='--login' || LOGIN_OPTION=""
+        exec ${pkgs.fish}/bin/fish $LOGIN_OPTION
+      fi
+    '';
+  }; # https://nixos.wiki/wiki/Fish#Setting_fish_as_your_shell
+
+  # Install some packages.
+  programs.git.enable = true;
+
+  programs.neovim = {
+    enable = true;
+    defaultEditor = true; # Use neovim as default terminal editor.
+    configure = {
+      customRC = ''
+        set expandtab
+        set shiftwidth=2
+        set tabstop=8
+        set softtabstop=2
+        set number
+        colorscheme kanagawa-dragon
+      '';
+      packages.myVimPackage = with pkgs.vimPlugins; {
+        start = [ kanagawa-nvim ];
+      };
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    aria2
+    btop
+    lynx
+    ncdu
+    nnn
+    rsync
+    tmux
+    trash-cli
+  ];
+
+  # Enable avahi hostname resolution.
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+  };
+}

configuration/desktop.nix

@@ -7,18 +7,6 @@
 }:
 
 {
-  # NixOS version.
-  system.stateVersion = "25.05";
-
-  # Enable flakes.
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
-
-  # Allow unfree packages.
-  nixpkgs.config.allowUnfree = true;
-
   # Configure the bootloader.
   boot = {
     # Enable secure boot.
@@ -54,36 +42,9 @@
   # Enable smart card support (for YubiKey).
   services.pcscd.enable = true;
 
-  # Define hostname.
-  networking.hostName = "muskduck";
-
   # Enable networking.
   networking.networkmanager.enable = true;
 
-  # Set time zone.
-  time.timeZone = "Australia/Perth";
-
-  # Select internationalisation properties.
-  i18n.defaultLocale = "en_AU.UTF-8";
-
-  i18n.extraLocaleSettings = {
-    LC_ADDRESS = "en_AU.UTF-8";
-    LC_IDENTIFICATION = "en_AU.UTF-8";
-    LC_MEASUREMENT = "en_AU.UTF-8";
-    LC_MONETARY = "en_AU.UTF-8";
-    LC_NAME = "en_AU.UTF-8";
-    LC_NUMERIC = "en_AU.UTF-8";
-    LC_PAPER = "en_AU.UTF-8";
-    LC_TELEPHONE = "en_AU.UTF-8";
-    LC_TIME = "en_AU.UTF-8";
-  };
-
-  # Configure keymap in X11.
-  services.xserver.xkb = {
-    layout = "us";
-    variant = "";
-  };
-
   # Define a user account.
   users.users.fern = {
     isNormalUser = true;
@@ -150,35 +111,21 @@
 
   # Install some packages.
   programs.steam.enable = true;
-  programs.git.enable = true;
   programs.firefox.enable = true;
 
-  programs.neovim = {
-    enable = true;
-    defaultEditor = true; # Use neovim as default terminal editor.
-    configure = {
-      customRC = ''
-        set expandtab
-        set shiftwidth=2
-        set tabstop=8
-        set softtabstop=2
-        set number
-        colorscheme kanagawa-dragon
-      '';
-      packages.myVimPackage = with pkgs.vimPlugins; {
-        start = [ kanagawa-nvim ];
-      };
-    };
-  };
-
   environment.systemPackages = with pkgs; [
     adwsteamgtk
     ansible
     celluloid
     discord
     feishin0_16_0.feishin
+    ghostty
     gimp3
     glabels-qt
+    gnome-tweaks
+    gnomeExtensions.auto-move-windows
+    gnomeExtensions.rounded-window-corners-reborn
+    gnomeExtensions.smile-complementary-extension
     jellyfin-media-player
     libreoffice
     nixd # nix language server
@@ -187,13 +134,8 @@
     protonmail-desktop
     signal-desktop
     smile
-    yubioath-flutter
-    gnomeExtensions.rounded-window-corners-reborn
-    gnomeExtensions.smile-complementary-extension
-    gnomeExtensions.auto-move-windows
-    gnome-tweaks
     vscodium
-    ghostty
+    yubioath-flutter
 
     # PrismLauncher with temurin jre.
     (prismlauncher.override {
@@ -215,9 +157,6 @@
   # Enable gamemode service
   programs.gamemode.enable = true;
 
-  # Enable avahi hostname resolution.
-  services.avahi.nssmdns4 = true;
-
   # Enable CUPS to print documents.
   services.printing.enable = true;
 

configuration/vm.nix

@@ -0,0 +1,40 @@
+{
+  # Configure the bootloader.
+  boot.loader.grub = { 
+    enable = true;
+    device = "/dev/sda";
+  };
+
+  # Define a user account.
+  users.users.docker = {
+    isNormalUser = true;
+    linger = true;
+    extraGroups = [
+      "wheel"
+      "docker"
+    ];
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIETPyuxUVEmYyEW6PVC6BXqkhULHd/RvMm8fMbYhjTMV fern@muskduck"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKzW4epTmK01kGVXcuAXUNJQPltnogf4uab9FA5m8S3n fern@pardalote"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBEJYq1fMxVOzCMfE/td6DtWS8nUk76U9seYD3Z9RYAz u0_a399@fairywren"
+      "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIMoJvPcUJDVVzO4dHROCFNlgJdDZSP5xyPx2s40zcx5QAAAABHNzaDo= YubiKey5NFC"
+    ];
+  };
+
+  # Auto login
+  services.getty.autologinUser = "docker";
+
+  # Passwordless sudo
+  security.sudo.wheelNeedsPassword = false;
+
+  # Enable all terminfo (for ghostty)
+  environment.enableAllTerminfo = true;
+
+  # Enable SSH server
+  services.openssh.enable = true;
+
+  # Enable docker
+  virtualisation.docker = {
+    enable = true;
+  };
+}

flake.nix

@@ -31,12 +31,27 @@
         };
 
         modules = [
+          { networking.hostName = "muskduck"; }
+
           lanzaboote.nixosModules.lanzaboote
           nixos-hardware.nixosModules.lenovo-thinkpad-t480
 
-          ./configuration.nix
+          ./configuration/common.nix
+          ./configuration/desktop.nix
           ./hardware-configuration/muskduck.nix # Include the results of the hardware scan.
         ];
       };
+
+      nixosConfigurations.vm-minecraft = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+
+        modules = [
+          { networking.hostName = "minecraft"; }
+          
+          ./configuration/common.nix
+          ./configuration/vm.nix
+          ./hardware-configuration/vm-minecraft.nix # Include the results of the hardware scan.
+        ];
+      };
     };
 }

hardware-configuration/muskduck.nix

@@ -1,7 +1,4 @@
-# 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, ... }:
+{ config, lib, modulesPath, ... }:
 
 {
   imports =
@@ -28,13 +25,7 @@
 
   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.enp0s31f6.useDHCP = lib.mkDefault true;
-  # networking.interfaces.wlp3s0.useDHCP = lib.mkDefault true;
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

hardware-configuration/vm-minecraft.nix

@@ -0,0 +1,35 @@
+{ lib, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/4d1a9488-acf2-456c-a435-cc96ecff8aba";
+      fsType = "ext4";
+    };
+
+  fileSystems."/home/docker/volumes" =
+    { device = "/dev/disk/by-uuid/e520aca6-6cad-483c-b855-f6409a8a6908";
+      fsType = "ext2";
+    };
+
+  fileSystems."/var/lib/docker" =
+    { device = "/dev/disk/by-uuid/fab223a4-78a1-4900-81a6-45d04325fdcf";
+      fsType = "ext2";
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/73916996-b863-4279-9fe5-ae2b3b773608"; }
+    ];
+
+  networking.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}