diff --git a/config/hosts/imxyy-nix-x16/default.nix b/config/hosts/imxyy-nix-x16/default.nix
new file mode 100644
index 0000000..3ea75a0
--- /dev/null
+++ b/config/hosts/imxyy-nix-x16/default.nix
@@ -0,0 +1,9 @@
+{
+  imports = [
+    ./nixos.nix
+    ./hardware.nix
+    ./home.nix
+    ./virt.nix
+    ./net.nix
+  ];
+}
diff --git a/config/hosts/imxyy-nix-x16/hardware.nix b/config/hosts/imxyy-nix-x16/hardware.nix
new file mode 100644
index 0000000..16b5fec
--- /dev/null
+++ b/config/hosts/imxyy-nix-x16/hardware.nix
@@ -0,0 +1,162 @@
+{
+  config,
+  lib,
+  pkgs,
+  username,
+  ...
+}:
+let
+  btrfs = "/dev/disk/by-uuid/0404de0a-9c4d-4c98-b3e5-b8ff8115f36c";
+in
+{
+  boot = {
+    initrd = {
+      kernelModules = [ "amdgpu" ];
+      availableKernelModules = [
+        "xhci_pci"
+        "ahci"
+        "nvme"
+        "usbhid"
+        "usb_storage"
+        "sd_mod"
+      ];
+      verbose = false;
+    };
+
+    kernelPackages = lib.mkForce pkgs.linuxPackages_cachyos;
+    kernelModules = [ "kvm-amd" ];
+
+    tmp.useTmpfs = true;
+    kernel.sysctl = {
+      "fs.file-max" = 9223372036854775807;
+    };
+
+    resumeDevice = btrfs;
+    kernelParams = [
+      "resume_offset=6444127"
+    ];
+  };
+  services.scx.enable = true;
+
+  fileSystems."/" = {
+    device = btrfs;
+    fsType = "btrfs";
+    options = [
+      "compress=zstd"
+      "subvol=root"
+    ];
+  };
+
+  fileSystems."/nix" = {
+    device = "/dev/disk/by-uuid/843c36ae-f6d0-46a1-b5c7-8ab569e1e63f";
+    fsType = "btrfs";
+    options = [ "compress=zstd" ];
+  };
+
+  my.persist.location = "/nix/persist";
+  fileSystems."/nix/persist" = {
+    device = btrfs;
+    fsType = "btrfs";
+    options = [
+      "compress=zstd"
+      "subvol=persistent"
+    ];
+    neededForBoot = true;
+  };
+
+  fileSystems."/swap" = {
+    device = btrfs;
+    fsType = "btrfs";
+    options = [
+      "compress=zstd"
+      "subvol=swap"
+    ];
+    neededForBoot = true;
+  };
+
+  boot.initrd.postDeviceCommands = lib.mkAfter ''
+    mkdir /btrfs_tmp
+    mount ${btrfs} /btrfs_tmp
+    mkdir -p /btrfs_tmp/old_roots
+    if [[ -e /btrfs_tmp/root ]]; then
+        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
+        mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
+    fi
+
+    delete_subvolume_recursively() {
+        IFS=$'\n'
+        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+            delete_subvolume_recursively "/btrfs_tmp/$i"
+        done
+        btrfs subvolume delete "$1"
+    }
+
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +14); do
+        delete_subvolume_recursively "$i"
+    done
+
+    btrfs subvolume create /btrfs_tmp/root
+    umount /btrfs_tmp
+  '';
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/B7DC-E9AC";
+    fsType = "vfat";
+    options = [
+      "uid=0"
+      "gid=0"
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  fileSystems."/home/${username}/Documents" = {
+    device = "/dev/disk/by-uuid/a4e37dcd-764a-418c-aa1c-484f1fbd4bbe";
+    fsType = "ext4";
+  };
+
+  fileSystems."/home/${username}/Downloads" = {
+    device = "/dev/disk/by-uuid/18717cb4-49ac-40fa-95d4-29523a458dd0";
+    fsType = "ext4";
+  };
+
+  fileSystems."/home/${username}/Videos" = {
+    device = "/dev/disk/by-uuid/b67bbeab-58bc-4814-b5e3-08404e78b25e";
+    fsType = "ext4";
+  };
+
+  fileSystems."/home/${username}/Pictures" = {
+    device = "/dev/disk/by-uuid/a31bfe7e-cc17-4bd2-af74-ae5de9be35d3";
+    fsType = "ext4";
+  };
+
+  fileSystems."/home/${username}/Music" = {
+    device = "//192.168.3.2/share/imxyy_soope_/Music";
+    fsType = "cifs";
+    options = [
+      "username=nas"
+      "password=nasshare"
+      "x-systemd.automount,noauto,x-systemd.idle-timeout=60,x-systemd.device-timeout=5s,x-systemd.mount-timeout=5s"
+      "nodev"
+      "nofail"
+      "uid=1000"
+      "gid=100"
+      "vers=3"
+      "rw"
+    ];
+  };
+
+  swapDevices = [
+    {
+      device = "/swap/swapfile";
+      size = 32 * 1024;
+    }
+  ];
+
+  networking.useDHCP = lib.mkDefault false;
+
+  hardware.enableRedistributableFirmware = lib.mkDefault true;
+  hardware.cpu.amd.updateMicrocode = config.hardware.enableRedistributableFirmware;
+
+  nixpkgs.hostPlatform = lib.mkForce "x86_64-linux";
+}
diff --git a/config/hosts/imxyy-nix-x16/home.nix b/config/hosts/imxyy-nix-x16/home.nix
new file mode 100644
index 0000000..3c219f8
--- /dev/null
+++ b/config/hosts/imxyy-nix-x16/home.nix
@@ -0,0 +1,185 @@
+{
+  config,
+  lib,
+  pkgs,
+  username,
+  ...
+}:
+{
+  my.home = {
+    home.packages = with pkgs; [
+      localsend
+
+      rclone
+
+      wpsoffice-cn
+      wps-office-fonts
+      ttf-wps-fonts
+      evince
+
+      anki
+
+      ayugram-desktop
+      telegram-desktop
+      signal-desktop
+      discord
+      qq
+      wechat
+
+      gnome-clocks
+
+      wineWowPackages.waylandFull
+
+      pavucontrol
+      pamixer
+    ];
+    programs.zsh = {
+      shellAliases = {
+        cageterm = "cage -m DP-2 -s -- alacritty -o font.size=20";
+        cagefoot = "cage -m DP-2 -s -- foot --font=monospace:size=20";
+        cagekitty = "cage -m DP-2 -s -- kitty -o font_size=20";
+      };
+      sessionVariables = {
+        no_proxy = "192.168.3.0/24";
+        PATH = "/home/${username}/bin:$PATH";
+      };
+      profileExtra = ''
+        if [ `tty` = "/dev/tty6" ]; then
+          clear
+        fi
+      '';
+    };
+
+    programs.niri.settings = {
+      environment.STEAM_FORCE_DESKTOPUI_SCALING = "1.25";
+      outputs = {
+        DP-2 = {
+          enable = true;
+          mode = {
+            width = 2560;
+            height = 1440;
+            refresh = 75.033;
+          };
+          scale = 1.25;
+          position = {
+            x = 0;
+            y = 0;
+          };
+        };
+        DP-3 = {
+          enable = true;
+          mode = {
+            width = 2560;
+            height = 1440;
+            refresh = 75.033;
+          };
+          scale = 1.25;
+        };
+      };
+    };
+  };
+
+  my = {
+    autologin = {
+      enable = true;
+      user = username;
+      ttys = [ 6 ];
+    };
+
+    gpg.enable = true;
+    cli.all.enable = true;
+    coding.all.enable = true;
+    desktop.all.enable = true;
+
+    desktop.browser.librewolf.enable = lib.mkForce false;
+
+    i18n.fcitx5.enable = true;
+
+    xdg = {
+      enable = true;
+      defaultApplications =
+        let
+          browser = [ "zen-beta.desktop" ];
+          editor = [ "codium.desktop" ];
+          imageviewer = [ "org.gnome.Shotwell-Viewer.desktop" ];
+        in
+        {
+          "inode/directory" = [ "nemo.desktop" ];
+
+          "application/pdf" = [ "org.gnome.Evince.desktop" ];
+
+          "text/*" = editor;
+          "application/json" = editor;
+          "text/html" = editor;
+          "text/xml" = editor;
+          "application/xml" = editor;
+          "application/xhtml+xml" = editor;
+          "application/xhtml_xml" = editor;
+          "application/rdf+xml" = editor;
+          "application/rss+xml" = editor;
+          "application/x-extension-htm" = editor;
+          "application/x-extension-html" = editor;
+          "application/x-extension-shtml" = editor;
+          "application/x-extension-xht" = editor;
+          "application/x-extension-xhtml" = editor;
+
+          "x-scheme-handler/about" = browser;
+          "x-scheme-handler/ftp" = browser;
+          "x-scheme-handler/http" = browser;
+          "x-scheme-handler/https" = browser;
+          "x-scheme-handler/unknown" = browser;
+
+          "audio/*" = imageviewer;
+          "video/*" = imageviewer;
+          "image/*" = imageviewer;
+          "image/gif" = imageviewer;
+          "image/jpeg" = imageviewer;
+          "image/png" = imageviewer;
+          "image/webp" = imageviewer;
+        };
+      extraBookmarks =
+        let
+          homedir = config.my.home.home.homeDirectory;
+        in
+        [
+          "file://${homedir}/Documents/%E7%8F%AD%E7%BA%A7%E4%BA%8B%E5%8A%A1 班级事务"
+          "file://${homedir}/NAS NAS"
+          "file://${homedir}/NAS/imxyy_soope_ NAS imxyy_soope_"
+          "file://${homedir}/NAS/imxyy_soope_/OS NAS OS"
+        ];
+    };
+    persist = {
+      enable = true;
+      homeDirs = [
+        ".android"
+        "Android"
+
+        "bin"
+        "workspace"
+        "Virt"
+
+        ".cache"
+        ".local/state"
+        ".local/share/Anki2"
+        ".local/share/shotwell"
+        ".local/share/cheat.sh"
+        ".local/share/Kingsoft"
+
+        ".local/share/AyuGramDesktop"
+        ".local/share/TelegramDesktop"
+        ".config/Signal"
+        ".config/discord"
+        ".config/QQ"
+        ".xwechat"
+
+        ".config/Kingsoft"
+        ".config/dconf"
+        ".config/gh"
+        ".config/pulse"
+        ".config/pip"
+        ".config/libreoffice"
+        ".config/sunshine"
+      ];
+    };
+  };
+}
diff --git a/config/hosts/imxyy-nix-x16/net.nix b/config/hosts/imxyy-nix-x16/net.nix
new file mode 100644
index 0000000..6ef1de1
--- /dev/null
+++ b/config/hosts/imxyy-nix-x16/net.nix
@@ -0,0 +1,62 @@
+{
+  config,
+  lib,
+  pkgs,
+  sopsRoot,
+  ...
+}:
+{
+  boot.kernelParams = [
+    "biosdevname=0"
+    "net.ifnames=0"
+  ];
+  networking.wireless.enable = true;
+  networking.wireless.userControlled = true;
+
+  sops.secrets.dae-imxyy-nix-x16 = {
+    sopsFile = sopsRoot + /dae-imxyy-nix-x16.dae;
+    format = "binary";
+  };
+  services.dae = {
+    enable = true;
+    configFile = config.sops.secrets.dae-imxyy-nix-x16.path;
+  };
+  systemd.services.dae.after = [ "sops-nix.service" ];
+  sops.secrets.mihomo = {
+    sopsFile = sopsRoot + /mihomo.yaml;
+    format = "yaml";
+    key = "";
+  };
+  systemd.services.mihomo.after = [ "sops-nix.service" ];
+  services.mihomo = {
+    enable = true;
+    configFile = config.sops.secrets.mihomo.path;
+    webui = pkgs.metacubexd;
+  };
+
+  sops.secrets.et-imxyy-nix-x16 = {
+    sopsFile = sopsRoot + /et-imxyy-nix-x16.toml;
+    format = "binary";
+  };
+  environment.systemPackages = with pkgs; [
+    easytier
+    wpa_supplicant
+    wpa_supplicant_gui
+  ];
+  systemd.services."easytier" = {
+    enable = true;
+    script = "${pkgs.easytier}/bin/easytier-core -c ${config.sops.secrets.et-imxyy-nix-x16.path}";
+    serviceConfig = {
+      Restart = lib.mkOverride 500 "always";
+      RestartMaxDelaySec = lib.mkOverride 500 "1m";
+      RestartSec = lib.mkOverride 500 "100ms";
+      RestartSteps = lib.mkOverride 500 9;
+      User = "root";
+    };
+    wantedBy = [ "multi-user.target" ];
+    after = [
+      "network.target"
+      "sops-nix.service"
+    ];
+  };
+}
diff --git a/config/hosts/imxyy-nix-x16/nixos.nix b/config/hosts/imxyy-nix-x16/nixos.nix
new file mode 100644
index 0000000..c8a2482
--- /dev/null
+++ b/config/hosts/imxyy-nix-x16/nixos.nix
@@ -0,0 +1,172 @@
+{
+  lib,
+  pkgs,
+  config,
+  username,
+  sopsRoot,
+  ...
+}: {
+  security.pam.loginLimits = [
+    {
+      domain = "*";
+      type = "soft";
+      item = "nofile";
+      value = "524288";
+    }
+  ];
+
+  boot.kernelParams = [
+    "usbcore.autosuspend=-1" # Avoid usb autosuspend (for usb bluetooth adapter)
+  ];
+
+  boot.loader = {
+    efi.canTouchEfiVariables = true;
+    systemd-boot.enable = true;
+    grub.enable = false;
+    timeout = 0;
+  };
+
+  hardware.graphics.enable = true;
+  hardware.graphics.enable32Bit = true;
+
+  systemd.services.nix-daemon = {
+    environment.TMPDIR = "/var/cache/nix";
+    serviceConfig.CacheDirectory = "nix";
+  };
+  environment.variables.NIX_REMOTE = "daemon";
+
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = false;
+    alsa.support32Bit = false;
+    pulse.enable = false;
+    audio.enable = false;
+  };
+  services.pulseaudio = {
+    enable = true;
+    support32Bit = true;
+    package = pkgs.pulseaudioFull;
+    extraConfig = ''
+      load-module module-switch-on-connect
+      unload-module module-suspend-on-idle
+    '';
+  };
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = true;
+    settings = {
+      General = {
+        Enable = "Source,Sink,Media,Socket";
+        Disable = "HeadSet";
+        MultiProfile = "multiple";
+      };
+    };
+  };
+  users.extraUsers.${username}.extraGroups = [ "audio" ];
+
+  fonts = {
+    enableDefaultPackages = false;
+    fontDir.enable = true;
+
+    packages = with pkgs; [
+      noto-fonts
+      noto-fonts-cjk-sans
+      noto-fonts-emoji
+
+      jetbrains-mono
+
+      nerd-fonts.symbols-only
+    ];
+
+    fontconfig.defaultFonts = {
+      serif = [
+        "Noto Serif CJK SC"
+        "Noto Serif"
+        "Symbols Nerd Font"
+      ];
+      sansSerif = [
+        "Noto Sans CJK SC"
+        "Noto Sans"
+        "Symbols Nerd Font"
+      ];
+      monospace = [
+        "JetBrains Mono"
+        "Noto Sans Mono CJK SC"
+        "Symbols Nerd Font Mono"
+      ];
+      emoji = [ "Noto Color Emoji" ];
+    };
+  };
+
+  services.printing.enable = true;
+
+  services.keyd = {
+    enable = true;
+    keyboards.default.settings = {
+      main = {
+        capslock = "overload(control, esc)";
+        home = "end";
+      };
+      shift = {
+        home = "home";
+      };
+      control = {
+        delete = "print";
+      };
+    };
+  };
+
+  services.gvfs.enable = true;
+
+  services.openssh = {
+    enable = true;
+    settings = {
+      # Forbid root login through SSH.
+      PermitRootLogin = null;
+      PasswordAuthentication = true;
+    };
+  };
+
+  environment.systemPackages = [
+    pkgs.rclone
+  ];
+
+  sops.secrets.imxyy-nix-rclone = {
+    sopsFile = sopsRoot + /imxyy-nix-rclone.conf;
+    format = "binary";
+  };
+  fileSystems = {
+    "/home/${username}/Nextcloud" = {
+      device = "Nextcloud:";
+      fsType = "rclone";
+      options = [
+        "nodev"
+        "nofail"
+        "allow_other"
+        "args2env"
+        "config=${config.sops.secrets.imxyy-nix-rclone.path}"
+        "uid=1000"
+        "gid=100"
+        "rw"
+        "no-check-certificate"
+        "vfs-cache-mode=full"
+      ];
+    };
+    "/home/${username}/NAS" = {
+      device = "//10.0.0.1/share";
+      fsType = "cifs";
+      options = [
+        "username=nas"
+        "password=nasshare"
+        "x-systemd.automount,noauto,x-systemd.idle-timeout=60,x-systemd.device-timeout=5s,x-systemd.mount-timeout=5s"
+        "nodev"
+        "nofail"
+        "uid=1000"
+        "gid=100"
+        "vers=3"
+        "rw"
+      ];
+    };
+  };
+}