move some nixos configuration to ./nixos/modules and ./nixos/configurations. try to find a good arch to conbine home-manager and nixos modules.

nixos/configurations/Tytonidae/default.nix

@@ -0,0 +1,43 @@
+{ pkgs, inputs, ... }:
+{
+  imports =
+    (with inputs; [
+      nixos-hardware.nixosModules.asus-fx506hm
+    ])
+    ++ [
+      # Include the hardware related config
+      ./hardware-configuration.nix
+      ./networking.nix
+    ];
+
+  networking.hostName = "Tytonidae";
+
+  time.timeZone = "Asia/Shanghai";
+
+  i18n = {
+    defaultLocale = "C.UTF-8";
+    extraLocaleSettings = {
+      LC_ADDRESS = "zh_CN.UTF-8";
+      LC_IDENTIFICATION = "zh_CN.UTF-8";
+      LC_MEASUREMENT = "zh_CN.UTF-8";
+      LC_MONETARY = "zh_CN.UTF-8";
+      LC_NAME = "zh_CN.UTF-8";
+      LC_NUMERIC = "zh_CN.UTF-8";
+      LC_PAPER = "zh_CN.UTF-8";
+      LC_TELEPHONE = "zh_CN.UTF-8";
+      LC_TIME = "zh_CN.UTF-8";
+    };
+  };
+
+  nixpkgs = {
+    config = {
+      allowUnfree = true;
+    };
+  };
+
+  boot = {
+    kernelPackages = pkgs.linuxPackages_zen;
+    loader.systemd-boot.enable = true;
+    loader.efi.canTouchEfiVariables = true;
+  };
+}

nixos/configurations/Tytonidae/hardware-configuration.nix

@@ -0,0 +1,58 @@
+# 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"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/b638dbc9-8945-482d-9d10-193271d3df98";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/A779-6930";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/7f7e95f2-8f2a-4998-bd71-01466e8ecc98"; }
+  ];
+
+  # 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.eno2.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s13f0u1u1.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;
+}

nixos/configurations/Tytonidae/networking.nix

@@ -0,0 +1,36 @@
+{ ... }:
+{
+  systemd.network = {
+    enable = true;
+    wait-online.enable = false;
+    networks = {
+      "eno2" = {
+        matchConfig.Name = "eno2";
+        networkConfig = {
+          DHCP = "yes";
+          IPv6AcceptRA = true;
+        };
+      };
+    };
+  };
+
+  networking = {
+    networkmanager.enable = false;
+    useNetworkd = true;
+    useDHCP = false;
+
+    wireless.iwd = {
+      enable = true;
+      settings = {
+        General = {
+          EnableNetworkConfiguration = true;
+        };
+        Network = {
+          EnableIPv6 = true;
+          NameResolvingService = "systemd";
+        };
+      };
+    };
+    firewall.enable = false;
+  };
+}

nixos/modules/default.nix

@@ -0,0 +1,30 @@
+{
+  inputs,
+  outputs,
+  pkgs,
+  ...
+}:
+{
+  imports =
+    (with inputs; [
+      niri-flake.nixosModules.niri
+      nixos-cosmic.nixosModules.default
+      home-manager.nixosModules.home-manager
+      dae.nixosModules.dae
+    ])
+    ++ [
+      ./nix.nix
+    ];
+
+  config = {
+    nixpkgs = {
+      overlays =
+        (with outputs; [
+          overlays.modifications
+        ])
+        ++ (with inputs; [
+          niri-flake.overlays.niri
+        ]);
+    };
+  };
+}

nixos/modules/nix.nix

@@ -0,0 +1,45 @@
+{
+  inputs,
+  outputs,
+  pkgs,
+  lib,
+  ...
+}:
+{
+  config = {
+    nix = {
+      nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
+      settings = {
+        inherit (outputs.nix.settings) substituters;
+        trusted-users = [
+          "root"
+          "@wheel"
+        ];
+        trusted-public-keys = [
+          "cosmic.cachix.org-1:Dya9IyXD4xdBehWjrkPv6rtxpmMdRel02smYzA85dPE="
+          "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        ];
+        auto-optimise-store = lib.mkDefault true;
+        experimental-features = [
+          "nix-command"
+          "flakes"
+        ];
+        warn-dirty = false;
+        system-features = [
+          "kvm"
+          "big-parallel"
+        ];
+        use-xdg-base-directories = true;
+        builders-use-substitutes = true;
+      };
+      package = pkgs.nix;
+      registry.sys = lib.mkDefault {
+        from = {
+          type = "indirect";
+          id = "sys";
+        };
+        flake = inputs.nixpkgs;
+      };
+    };
+  };
+}