public function initRuntimeConfigSupport(Injectables $injectables)
{
// create the runtime config's manager
$this->runtimeConfigManager = new RuntimeConfigManager();
// create the folder where we will store the persistent config
$this->runtimeConfigManager->makeConfigDir($injectables->output);
// load any config from the last time Storyplayer ran
$this->runtimeConfig = $this->runtimeConfigManager->loadRuntimeConfig($injectables->output);
// all done
return $this->runtimeConfigManager;
}