Snippret of only allowing plugin to be loaded by Genisys

Plugin-only-for-Genisys.php

<?php
 
namespace example;

use pocketmine\plugin\PluginBase

class MyClass extends PluginBase {
	
	public function onEnable(){
		$version = $this->getServer()->getName();
		
		//What happens here, is if using Genisys it will continue to load the plugin
		//and if using ANYTHING else it will disable it. Just a snippet here.
		switch($version){	
			case "Genisys":
				$this->getLogger()->info("This plugin has disabled PocketMine support"); //Optional message here
				break;
			default:
			        $this->getLogger()->warn("Sorry, this plugin is for Genisys, a software based off PocketMine.");
				$this->getLogger()->info("Download it at https://github.com/itxtech/genisys"); //Optional message
				$this->setEnabled(false);
		}
		
		//Continue loading stuff here
	}
	
}

https://gist.github.com/minecrafter/ca13f5ea0d6315051d8a7fd364d7340f