nixos/modules/shell/zsh.nix

{ options, config, lib, pkgs, ...}:
with lib;
let cfg = config.modules.shell.zsh;
in {
  options.modules.shell.zsh = {
    enable = mkBoolOpt false;
  };

  config = mkIf cfg.enable {
    programs.zsh = {
      enable = true;
      promptInit = "source ${pkgs.zsh-powerlevel10k}/share/zsh-powerlevel10k/powerlevel10k.zsh-heme";
    };
  };
}