{
    config,
    lib,
    pkgs,
    ...
}: let
    cfg = config.poz.services.fcitx5;
    inherit (config.poz.other.system) username;

    inherit (lib.modules) mkIf;
    inherit (lib.options) mkEnableOption;
in {
    # stolen from https://git.outfoxxed.me/outfoxxed/nixnew/src/branch/master/modules/user/modules/fcitx5
    options.poz.services.fcitx5.enable = mkEnableOption "fcitx5";

    config = mkIf cfg.enable {
        i18n.inputMethod = {
            enabled = "fcitx5";
            fcitx5.addons = with pkgs; [
                fcitx5-mozc
                fcitx5-gtk
                libsForQt5.fcitx5-qt
            ];
        };

        home-manager.users.${username} = {
            xdg.configFile = {
                "fcitx5/config".text = ''
                    [Hotkey]
                    # Enumerate when press trigger key repeatedly
                    EnumerateWithTriggerKeys=False
                    # Enumerate Input Method Forward
                    EnumerateForwardKeys=
                    # Enumerate Input Method Backward
                    EnumerateBackwardKeys=
                    # Skip first input method while enumerating
                    EnumerateSkipFirst=False
                    # Enumerate Input Method Group Forward
                    EnumerateGroupForwardKeys=
                    # Enumerate Input Method Group Backward
                    EnumerateGroupBackwardKeys=
                    # Activate Input Method
                    ActivateKeys=
                    # Deactivate Input Method
                    DeactivateKeys=
                    # Default Previous page
                    PrevPage=
                    # Default Next page
                    NextPage=
                    # Default Previous Candidate
                    PrevCandidate=
                    # Default Next Candidate
                    NextCandidate=
                    # Toggle embedded preedit
                    TogglePreedit=

                    [Hotkey/TriggerKeys]
                    0=Control+grave

                    [Hotkey/AltTriggerKeys]
                    0=Shift_L

                    [Behavior]
                    # Active By Default
                    ActiveByDefault=False
                    # Share Input State
                    ShareInputState=No
                    # Show preedit in application
                    PreeditEnabledByDefault=True
                    # Show Input Method Information when switch input method
                    ShowInputMethodInformation=True
                    # Show Input Method Information when changing focus
                    showInputMethodInformationWhenFocusIn=False
                    # Show compact input method information
                    CompactInputMethodInformation=True
                    # Show first input method information
                    ShowFirstInputMethodInformation=True
                    # Default page size
                    DefaultPageSize=5
                    # Override Xkb Option
                    OverrideXkbOption=False
                    # Custom Xkb Option
                    CustomXkbOption=
                    # Force Enabled Addons
                    EnabledAddons=
                    # Force Disabled Addons
                    DisabledAddons=
                    # Preload input method to be used by default
                    PreloadInputMethod=True
                '';
                "fcitx5/profile".text = ''
                    [Groups/0]
                    # Group Name
                    Name=Default
                    # Layout
                    Default Layout=us
                    # Default Input Method
                    DefaultIM=mozc

                    [Groups/0/Items/0]
                    # Name
                    Name=keyboard-us
                    # Layout
                    Layout=

                    [Groups/0/Items/1]
                    # Name
                    Name=mozc
                    # Layout
                    Layout=

                    [GroupOrder]
                    0=Default
                '';
            };
        };
    };
}