init: macmini nixos configuration.

host/hardware-configuration.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 = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" "sdhci_pci" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/7ef653d0-f317-40fa-a9d0-8f0c8050410d";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/CF42-F4D2";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/a1931d27-cafb-4269-83f7-808d1509fa0c"; }
+    ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

host/macmini.nix

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+{
+  pkgs,
+  ...
+}:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+
+    ../modules/services/ddns-go.nix
+    ../modules/services/nignx.nix
+    ../modules/services/gitea.nix
+
+    ../modules/system/boot.nix
+    ../modules/system/networking.nix
+
+    ../modules/programs/bash
+    ../modules/programs/tools.nix
+  ];
+
+  time.timeZone = "Aisa/Shanghai";
+
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  users.users.sky = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    packages = with pkgs; [
+      tree
+    ];
+  };
+
+  system.stateVersion = "25.11";
+}