DownloadableResources.php

<?php
declare(strict_types=1);
/**
 * @name DownloadableResources
 * @main jasonwynn10\DownloadableResources\Main
 * @version 0.1.0
 * @api 3.0.0
 * @description A plugin script which automatically downloads and adds resource packs according to links in the config
 * @author jasonwynn10
 */
namespace jasonwynn10\DownloadableResources {
	use pocketmine\event\Listener;
	use pocketmine\event\player\PlayerDeathEvent;
	use pocketmine\event\player\PlayerQuitEvent;
	use pocketmine\event\player\PlayerRespawnEvent;
	use pocketmine\item\Item;
	use pocketmine\level\Position;
	use pocketmine\plugin\PluginBase;
	use pocketmine\resourcepacks\ZippedResourcePack;
	use pocketmine\scheduler\Task;
	use pocketmine\Server;
	use pocketmine\utils\Internet;

	class Main extends PluginBase {
		public function onLoad() {
			/** @var array $urlList */
			$urlList = $this->getConfig()->getAll();
			foreach($urlList as $name => $urlString) {
				$manager = $this->getServer()->getResourcePackManager();
				$resourcePackFolder = $manager->getPath();
				if(!file_exists($resourcePackFolder.$name.".mcpack")) {
					$packData = Internet::getURL($urlString, 3);
					file_put_contents($resourcePackFolder.$name.".mcpack", $packData);
				}
			}
		}
		public function onEnable() {
			$manager = $this->getServer()->getResourcePackManager();
			$resourcePackFolder = $manager->getPath();
			$packNames = $this->getConfig()->getAll(true);
			foreach($packNames as $name) {
				$pack = new ZippedResourcePack($resourcePackFolder.$name.".mcpack");

				$reflection = new \ReflectionClass($manager);

				$property = $reflection->getProperty("resourcePacks");
				$property->setAccessible(true);
				$currentResourcePacks = $property->getValue($manager);
				$currentResourcePacks[] = $pack;
				$property->setValue($manager, $currentResourcePacks);

				$property = $reflection->getProperty("uuidList");
				$property->setAccessible(true);
				$currentUUIDPacks = $property->getValue($manager);
				$currentUUIDPacks[strtolower($pack->getPackId())] = $pack;
				$property->setValue($manager, $currentUUIDPacks);
			}
		}
	}
}

What does this?

For me it looks like it downloads and installs resource-packs on the server.
(Sorry for late answer lol)