{ pkgs, ... }:
let
  calendars = pkgs.privateValue [ ] "calendars";
in
{
  home.packages = [ pkgs.khal ];
  xdg.configFile."khal/config".text = ''
      [default]
      default_calendar = Standard
      [calendars]
      ${pkgs.lib.concatMapStringsSep "\n" (
      { name, readOnly ? false, ... }: ''
        [[${name}]]
        type = discover
        path = ~/.calendars/${name}/*
        readonly = ${if readOnly then "True" else "False"}''
    ) calendars}
  '';
}