self:

{ config, lib, pkgs, ... }:

let
  cfg = config.services.rhemawave;
in
{
  options.services.rhemawave = {
    enable = lib.mkEnableOption "RhemaWave kiosk application";

    package = lib.mkOption {
      type = lib.types.package;
      # Points to the default package in your flake
      default = self.packages.${pkgs.system}.default;
      description = "The RhemaWave package to use.";
    };
    
    user = lib.mkOption {
      type = lib.types.str;
      default = "kiosk";
      description = "The user account name.";
    };
  };

  config = lib.mkIf cfg.enable {
    # Just put the package in the system path. 
    # The machine (configuration.nix) handles the service and the files.
    environment.systemPackages = [ cfg.package ];
  };
}