{
  lib,
  pkgs,
  userName,
  ...
}: {
  programs = {
    fish = {
      enable = true;
      shellAliases = {
        # ls aliases
        ls = "eza --color";
        la = "eza -l -all --color";
        ll = "eza -l --color";
        lt = "eza -l --color --git";
        # lazygit alias
        lg = "lazygit";
        # cat, less, more alias
        cat = "bat";
        less = "bat";
        more = "bat";
        # top alias
        top = "btm";
      };
      functions =
        {
          fish_greeting = {
            body = ''
              set memes \
                "Crazy? I was crazy once. They locked me in a room. A rubber room. A rubber room with rats. And rats make me crazy." \
                "Daddy, chill!" \
                "What the hell is even that?!" \
                "Road work ahead? Yeah, I sure hope it does!" \
                "Look at all those chickens!" \
                "I smell like beef" \
                "Say, Coloardo - I'M A GIRAFFE" \
                "I didn't get no sleep cause of y'all, y'all not gone get any sleep cause of me!" \
                "This is the dollar store, how good can it be?" \
                "That was legitness" \
                "Deez nuts" \
                "I wanna be a cowboy baby" \
                "Can I get a waffle? Can I please get a waffle?" \
                "I'm lesbian. I thought you were American." \
                "You gotta give 'em that 'hawk tuah' and spit on that thang!" \
                "We don't do that here..." \
                "What are those?! They are my crocs..." \
                "It's an avocado... Thanks!" \
                "I am once again asking for your financial support" \
                "Is that a weed?" \
                "No, this is Patrick!" \
                "Come ride, heroes, ride" \
                "Away with the tide" \
                "Concede your mind unto the fiend" \
                "Darkness come, rend the shield of light" \
                "The sun is setting, darkness taking over - a date with chaos and you're dressed to the nines" \
                "Now kneel overdweller, your lord commands, there's no salvation for the sons of man" \
                "Snap click clank whirr whizz wham boom!" \
                "Rohs an kyn ala na"

              set choose_meme (random)"%"(count $memes)
              set choose_meme $memes[(math $choose_meme"+1")]
              printf (set_color F90)"%s\n" $choose_meme
            '';
            # onEvent = "fish_greeting";
          };
        } // (lib.mkIf pkgs.stdenv.isLinux {
          block = {
            body = ''
              echo "Starting systemd-inhibit..."
              set inhibit_pid_file /tmp/fish_inhibit_pid_(whoami)
              bash -c 'systemd-inhibit --no-ask-password --what=idle --who="'${userName}'" --why="manual invocation" sh & echo $! > '"$inhibit_pid_file"' && disown'
              if test -f $inhibit_pid_file
                set -g INHIBIT_PID (cat $inhibit_pid_file)
                echo "Inhibit process started with PID: $INHIBIT_PID"
              else
                echo "Failed to start inhibit process"
                return 1
              end
            '';
          };
          unblock = {
            body = ''
              set inhibit_pid_file /tmp/fish_inhibit_pid_(whoami)
              if test -f $inhibit_pid_file
                set INHIBIT_PID (cat $inhibit_pid_file)
                echo "Killing inhibit process: $INHIBIT_PID"
                kill -SIGTERM $INHIBIT_PID 2>/dev/null; or kill -SIGKILL $INHIBIT_PID 2>/dev/null
                rm -f $inhibit_pid_file
                set -e INHIBIT_PID
                echo "Inhibit process terminated"
              else
                echo "No inhibit process file found"
              end
            '';
          };
        });
    };
    zsh = {
      enable = true;
      initContent = ''
        if [[ -z "$BASH_EXECUTION_STRING" ]]; then
          if [[ -n "$ZSH_VERSION" ]]; then
            LOGIN_OPTION="--login"
          else
            LOGIN_OPTION=""
          fi
          exec ${pkgs.fish}/bin/fish $LOGIN_OPTION
        fi
      '';
    };
    bash = {
      enable = true;
      initExtra = ''
        if [[ -z "$BASH_EXECUTION_STRING" ]]; then
          if [[ -n "$ZSH_VERSION" ]]; then
            LOGIN_OPTION="--login"
          else
            LOGIN_OPTION=""
          fi
          exec ${pkgs.fish}/bin/fish $LOGIN_OPTION
        fi
      '';
    };
  };
}