{ pkgs, ... }: {
  # Configure default fonts
  fonts = {
    packages = with pkgs; [
      inter
      iosevka
      noto-fonts
      noto-fonts-cjk-sans
      noto-fonts-cjk-serif
      noto-fonts-emoji
      meslo-lgs-nf
    ];
    fontconfig.defaultFonts = {
      serif = [ "Noto Serif" "Noto Serif CJK SC" ];
      sansSerif = [ "Inter" "Noto Sans CJK SC" ];
      monospace = [ "Iosevka" "Noto Sans CJK SC" ];
    };
  };

  # Configure input methods
  i18n = {
    defaultLocale = "en_US.UTF-8";
    inputMethod = {
      enabled = "fcitx5";
      fcitx5.addons = with pkgs; [ fcitx5-rime ];
    };
    supportedLocales = [
      "C.UTF-8/UTF-8"
      "en_US.UTF-8/UTF-8"
      "ja_JP.UTF-8/UTF-8"
      "zh_CN.GB18030/GB18030"
      "zh_CN.UTF-8/UTF-8"
    ];
  };

  # Configure keyboard mapping
  services.kanata = {
    enable = true;
    keyboards.core = {
      devices = [ "/dev/input/by-id/usb-ASUSTeK_Computer_Inc._N-KEY_Device-if02-event-kbd" ];
      config = ''
        (defsrc
          esc  f1   f2   f3   f4   f5   f6   f7   f8   f9   f10  f11  f12  del
          grv  1    2    3    4    5    6    7    8    9    0    -    =    bspc
          tab  q    w    e    r    t    y    u    i    o    p    [    ]    \
          caps a    s    d    f    g    h    j    k    l    ;    '    ret
          lsft z    x    c    v    b    n    m    ,    .    /    rsft up
          lctl lmet lalt           spc            ralt rctl      left down rght
        )
        (deflayer base
          _    _    _    _    _    _    _    _    _    _    _    _    _    _
          _    _    _    _    _    _    _    _    _    _    _    _    _    _
          _    _    _    _    _    _    _    _    _    _    _    _    _    _
          _    _    _    _    _    _    _    _    _    _    _    _    _   
          _    _    _    _    _    _    _    _    _    _    _    _    _
          _    _    _              _              _    @li       _    _    _
        )
        (deflayer index
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX  
          XX   XX   XX   XX   XX   @lb  XX   @lm  XX   XX   XX   XX   XX
          XX   XX   XX             XX             XX   XX        XX   XX   XX
        )
        (deflayer media
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX
          XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX   XX  
          XX   XX   XX   XX   XX   XX   XX   XX   prev next XX   XX   XX
          XX   XX   XX             pp             XX   @li       XX   XX   XX
        )
        (defalias
          li (layer-toggle index)
          lb (layer-switch base)
          lm (layer-switch media)
        )
      '';
    };
  };
}