{
  config,
  lib,
  pkgs,
  inputs,
  ...
}:
let
  inherit (lib) types;
  genUsers = users: f: builtins.listToAttrs (map (user: {
    name = user;
    value = (f user);
  }) users);
in {
  options.gg.users = {
    admins = lib.mkOption {
      type = (types.listOf types.str);
      default = [ "mtxyz" "hive" ];
    };
    friend = lib.mkOption {
      type = types.bool;
      default = false;
    };
  };

  config = {
    # Users
    programs.fish.enable = true;
    users.defaultUserShell = pkgs.fish;

    users.users = (genUsers config.gg.users.admins (name: {
      isNormalUser = true;
      extraGroups = [ "wheel" ];
      openssh.authorizedKeys.keyFiles = [
        "${inputs.self}/pubkeys/${name}.keys"
      ];
      initialPassword = "";
    })) // {
      friends = lib.mkIf config.gg.users.friend {
        isNormalUser = true;
        initialPassword = "";
      };
    };
  };
}