#https://xeiaso.net/talks/asg-2023-nixos/ example
{ lib, config, pkgs, ... }:
let
  isEnabled =
    config.azos.mail.enable;
in {
    optionns.azos.mail.enable = lib.mkOption {
      default = true;
      example = true;
      type = lib.types.bool;
    };

    config = lib.mkIf isEnabled {
      home.file."mail.txt".text = ''Mail enabled'';
    };
}