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;
      default = self.packages.${pkgs.system}.default;
    };

    user = lib.mkOption {
      type = lib.types.str;
      default = "kiosk";
    };
  };

  config = lib.mkIf cfg.enable {
    # App-specific environment
    environment.sessionVariables = {
      SDL_VIDEODRIVER = "wayland";
      QT_QPA_PLATFORM = "wayland";
      GDK_BACKEND = "wayland";
      CLUTTER_BACKEND = "wayland";
    };

    # App-specific assets (The Symlink Farm)
    systemd.tmpfiles.rules = [
      "d /home/${cfg.user}/.local/share/rhemawave 0700 ${cfg.user} kiosk -"
      "L+ /home/${cfg.user}/.local/share/rhemawave/shaders       - - - ${cfg.package}/share/rhemawave/shaders"
      "L+ /home/${cfg.user}/.local/share/rhemawave/fonts         - - - ${cfg.package}/share/rhemawave/fonts"
      "L+ /home/${cfg.user}/.local/share/rhemawave/tos           - - - ${cfg.package}/share/rhemawave/tos"
      "L+ /home/${cfg.user}/.local/share/rhemawave/audio         - - - ${cfg.package}/share/rhemawave/audio"
      "L+ /home/${cfg.user}/.local/share/rhemawave/proclamations - - - ${cfg.package}/share/rhemawave/proclamations"
    ];

    # Make the package available
    environment.systemPackages = [ cfg.package ];
  };
}