Create group and move files into it.

nodes/hosts/common/configuration.nix

@@ -0,0 +1,19 @@
+{ pkgs, ... }:
+{
+  nixpkgs = {
+    config.allowUnfree = true;
+  };
+  nix = {
+    optimize.automatic = true;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+
+  users.users = {
+    jay = {
+      description = "Jay Carter";
+      shell = pkgs.bash;
+    };
+  };
+}

nodes/hosts/group.nix

@@ -0,0 +1,7 @@
+{
+  common = {
+    os = "nixos";
+    channel = "stable";
+  };
+  lappy = {};
+}

nodes/hosts/lappy/configuration.nix

@@ -0,0 +1,128 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+      ./filesystems.nix
+    ];
+
+  # Use the systemd-boot EFI boot loader.
+  nixpkgs.hostPlatform = "x86_64-linux";
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # Use latest kernel.
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  networking.hostName = "lappy"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  time.timeZone = "America/Montreal";
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+  # console = {
+  #   font = "Lat2-Terminus16";
+  #   keyMap = "us";
+  #   useXkbConfig = true; # use xkb.options in tty.
+  # };
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+
+
+  
+
+  # Configure keymap in X11
+  services.xserver.xkb.layout = "us";
+  # services.xserver.xkb.options = "eurosign:e,caps:escape";
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # services.pulseaudio.enable = true;
+  # OR
+  services.pipewire = {
+     enable = true;
+     pulse.enable = true;
+   };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  services.libinput.enable = true;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.jay = {
+    isNormalUser = true;
+    extraGroups = [ "networkmanager" "wheel" ]; # Enable ‘sudo’ for the user.
+    packages = with pkgs; [
+      tree
+    ];
+  };
+
+  programs.firefox.enable = true;
+
+  # List packages installed in system profile.
+  # You can use https://search.nixos.org/ to find more packages (and options).
+  # environment.systemPackages = with pkgs; [
+  #   vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+  #   wget
+  # ];
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  # services.openssh.enable = true;
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "25.05"; # Did you read the comment?
+
+}
+

nodes/hosts/lappy/disk-config.nix

@@ -0,0 +1,86 @@
+{
+  disko.devices = {
+    disk = {
+      nvme1n1 = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              label = "boot";
+              name = "ESP";
+              size = "4500M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ 
+                  "umask=0077" 
+                  "defaults"
+                ];
+              };
+            };
+            luks = {
+              size = "100%";
+              label = "luks";
+              content = {
+                type = "luks";
+                name = "cryptroot";
+                # disable settings.keyFile if you want to use interactive password entry
+                #passwordFile = "/tmp/secret.key"; # Interactive
+                settings = {
+                  allowDiscards = true;
+                  #keyFile = "/tmp/secret.key";
+                };
+                
+                #additionalKeyFiles = [ "/tmp/additionalSecret.key" ];
+                content = {
+                  type = "btrfs";
+                  extraArgs = [ "-L" "nixos" "-f" ];
+                  subvolumes = {
+                    "/root" = {
+                      mountpoint = "/";
+                      mountOptions = [
+                        "subvol=root"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                    "/nix" = {
+                      mountpoint = "/nix";
+                      mountOptions = [
+                        "subvol=nix"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                    "/persist" = {
+                      mountpoint = "/persist";
+                      mountOptions = [
+                        "subvol=persist"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                    "/log" = {
+                      mountpoint = "/var/log";
+                      mountOptions = [
+                        "subvol=log"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+  fileSystems."/nix/persist".neededForBoot = true;
+  fileSystems."/var/log".neededForBoot = true;
+}

nodes/hosts/lappy/filesystems.nix

@@ -0,0 +1,41 @@
+{ ... }: {
+  
+  fileSystems."/" =
+    { device = "/dev/mapper/cryptroot";
+      fsType = "btrfs";
+      options = [ "subvol=root" "compress=zstd" "noatime" ];
+    };
+
+  fileSystems."/nix" =
+    { device = "/dev/mapper/cryptroot";
+      fsType = "btrfs";
+      options = [ "subvol=nix" "compress=zstd" "noatime" ];
+    };
+
+  fileSystems."/var/log" =
+    { device = "/dev/mapper/cryptroot";
+      fsType = "btrfs";
+      options = [ "subvol=log" "compress=zstd" "noatime" ];
+      neededForBoot = true;
+    };
+
+  fileSystems."/nix/persist" =
+    { device = "/dev/mapper/cryptroot";
+      fsType = "btrfs";
+      options = [ "subvol=persist" "compress=zstd" "noatime" ];
+      neededForBoot = true;
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-partlabel/boot";
+      fsType = "vfat";
+      options = [ "fmask=0077" "dmask=0077" ];
+    };
+
+  swapDevices = [{
+    device = "/swapfile";
+    size = 16 * 1024;
+  }];
+
+}
+

nodes/hosts/lappy/hardware-configuration.nix

@@ -0,0 +1,26 @@
+# 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 = [ "xhci_pci" "thunderbolt" "nvme" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  # 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.enp0s20f0u1.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

nodes/hosts/lappy/node.nix

@@ -0,0 +1,4 @@
+{
+  os = "nixos";
+  channel = "stable";
+}