{
  username ? throw "username argument is required",
}:
{
  config,
  lib,
  pkgs,
  ...
}:
let
  hmConfig = config.home-manager.users.${username};
in
{
  environment.persistence."/cache".users.${username}.directories = [
    "${hmConfig.xdg.relativeCacheHome}/kitty"
  ];

  home-manager.users.${username} = {
    programs.kitty = {
      enable = true;

      font = {
        name = builtins.head hmConfig.theme.font.monospace.names;
        package = builtins.head hmConfig.theme.font.monospace.packages;
        inherit (hmConfig.theme.font) size;
      };

      extraConfig = ''
        confirm_os_window_close 0
        include theme.conf
      '';
    };

    theme = {
      templates."${hmConfig.xdg.configHome}/kitty/theme.conf".source = ./theme.conf;

      extraConfig = "${
        lib.meta.getExe (
          pkgs.writeShellApplication {
            name = "reload-kitty";
            runtimeInputs = with pkgs; [ procps ];
            text = "exec pkill kitty -SIGUSR1";
          }
        )
      } &";
    };
  };
}