{ config, pkgs, ... }:
{
  home.packages = with pkgs; [ zsh-completions ];

  programs.zsh = {
    enable = true;
    dotDir = ".config/zsh";

    defaultKeymap = "emacs";
    enableCompletion = true;
    enableAutosuggestions = true;

    history = {
      size = 500000;
      save = 500000;
      extended = true;
      ignoreSpace = true;
      ignoreDups = true;
      share = true;
      # see
      # https://github.com/nix-community/home-manager/blob/32a7da69dc53c9eb5ad0675eb7fdc58f7fe35272/modules/programs/zsh.nix#L537
      path = "${config.xdg.dataHome}/zsh/zsh_history";
    };

    localVariables = {
      # Print timing statistics for everything which takes longer than
      # 5 seconds of user + system time.
      REPORTTIME = 5;
    };

    shellAliases = {
      ll = "ls -l --color=auto";
      lt = "ls -ltrh --color=auto";
      la = "ls -ltrha --color=auto";
      pkgsearch = "nix search nixpkgs";
      flup = "nix flake update --commit-lock-file";
    };

    oh-my-zsh = {
      enable = true;
      plugins = [ "git" ];
      theme = "robbyrussell";
    };
  };
}