{
  config,
  pkgs,
  lib,
  shell_library,
  system,
  ...
}: {
  # TODO: ADD THIS ADDON
  # next one only works if your alias is only a command, e.g. if you `alias='cat some_file.txt &2> /dev/null'`, running `cat some_file.txt` won't trigger it.
  # TODO: find something better for this use case
  # zsh-you-should-use # ZSH plugin that reminds you to use existing aliases for commands you just typed
  home.sessionPath = [];
  programs.zsh = {
    enable = true;
    autosuggestion.enable = true;
    enableCompletion = true;
    syntaxHighlighting.enable = true;

    autocd = true;

    dotDir = ".config/zsh";

    history = {
      extended = true;
      ignoreDups = false;
      expireDuplicatesFirst = false;
      ignoreSpace = false; # TODO: I might change that

      path = "${config.xdg.dataHome}/zsh/history";
      save = 9000000; # number of lines to save
      size = 9000000; # number of lines to keep
      share = false; # share between sessions
    };
    historySubstringSearch = {
      enable = true;
      searchDownKey = "^[[B"; # DOWN Arrow key
      searchUpKey = "^[[A"; # UP Arrow key
    };

    loginExtra =
      ""
      + lib.concatStringsSep "\nsetopt " [
        "setopt AUTO_CD" # This is needed as first item
        "AUTO_PUSHD"
        "CHASE_DOTS"

        "ALWAYS_TO_END"

        "EXTENDED_HISTORY"
        "HIST_ALLOW_CLOBBER"
        "HIST_VERIFY"
        "HIST_FCNTL_LOCK"
        "APPEND_HISTORY"

        "DVORAK"
        "CORRECT"

        "PROMPT_SUBST"
        "TRANSIENT_RPROMPT" # maybe?

        "COMBINING_CHARS"
        "VI"
      ];

    initExtraFirst =
      builtins.readFile ./config/zsh-init.zsh
      + ''
        SHELL_LIBRARY_VERSION="2.1.2" source ${shell_library.rawLib.${system}}
        # This next line buffers the first line of the following item:

      ''
      # NOTE: This must be before the insult, as we otherwise override the previous handler <2024-02-28>
      + builtins.readFile ./config/command_not_found.sh
      + builtins.readFile ./config/command_not_found_insult.sh
      + builtins.readFile ./config/custom_cursor.zsh
      + builtins.readFile "${pkgs.fzf}/share/fzf/key-bindings.zsh";

    shellAliases = {
      ll = ". ll";
      hisea = "history 0 | grep";
    };
    sessionVariables = {
      IVIEWER = "imv";
      READER = "zathura";

      LIBVIRT_DEFAULT_URI = "qemu:///system";

      BEMENU_SCALE = "1.5";
      BEMENU_BACKEND = "wayland";
      BEMENU_OPTS = "--fn 'Source Code Pro 10' -c -l 30 -B 1 -W 0.9 --hf #ffffff";

      # Export Wayland env Vars {{{
      QT_QPA_PLATFORM = "wayland";
      QT_QPA_PLATFORMTHEME = "qt5ct"; # needs qt5ct
      CLUTTER_BACKEND = "wayland";
      SDL_VIDEODRIVER = "wayland"; # might brake some things
      # }}}
    };
  };
}