feat(node): add new host

hosts/node/default.nix

@@ -0,0 +1,48 @@
+{
+  inputs,
+  username,
+  lib,
+  ...
+}: {
+  imports = [
+    inputs.disko.nixosModules.default
+
+    (import ./disko.nix {
+      device = "/dev/nvme0n1";
+      device2 = "/dev/nvme1n1";
+    })
+    ./hardware.nix
+
+    ../common
+  ];
+
+  tux.services.openssh.enable = true;
+
+  boot.loader.grub.enable = true;
+
+  networking = {
+    hostName = "node";
+    networkmanager = {
+      enable = true;
+      wifi.powersave = false;
+    };
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [22];
+    };
+  };
+
+  security.rtkit.enable = true;
+
+  environment.persistence."/persist" = {
+    enable = false;
+  };
+
+  home-manager.users.${username} = {
+    imports = [
+      ./home.nix
+    ];
+  };
+
+  system.stateVersion = "25.05";
+}

hosts/node/disko.nix

@@ -0,0 +1,69 @@
+{
+  device ? throw "Set this to the disk device, e.g. /dev/nvme0n1",
+  device2 ? throw "Set this to the disk device2, e.g. /dev/nvme1n1",
+  ...
+}: {
+  disko.devices = {
+    disk = {
+      disk1 = {
+        type = "disk";
+        device = "${device}";
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              size = "1M";
+              type = "EF02"; # for grub MBR
+            };
+            mdadm = {
+              size = "100%";
+              content = {
+                type = "mdraid";
+                name = "raid0";
+              };
+            };
+          };
+        };
+      };
+      disk2 = {
+        type = "disk";
+        device = "${device2}";
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              size = "1M";
+              type = "EF02"; # for grub MBR
+            };
+            mdadm = {
+              size = "100%";
+              content = {
+                type = "mdraid";
+                name = "raid0";
+              };
+            };
+          };
+        };
+      };
+    };
+    mdadm = {
+      raid0 = {
+        type = "mdadm";
+        level = 0;
+        content = {
+          type = "gpt";
+          partitions = {
+            primary = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/node/hardware.nix

@@ -0,0 +1,25 @@
+# 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" "ahci" "nvme" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  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.enp41s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/node/home.nix

@@ -0,0 +1,3 @@
+{...}: {
+  home.stateVersion = "25.05";
+}