nextcloud_minimalprofile/lib/AppInfo/Application.php

<?php
/**
 * Minimal Profile app bootstrap
 */
namespace OCA\MinimalProfile\AppInfo;

use OCP\AppFramework\App;
use OCP\AppFramework\Bootstrap\IBootContext;
use OCP\AppFramework\Bootstrap\IBootstrap;
use OCP\AppFramework\Bootstrap\IRegistrationContext;
use OCP\Util;

class Application extends App implements IBootstrap {
	public function register(IRegistrationContext $context): void {}
	public function boot(IBootContext $context): void {
		Util::addStyle('minimalprofile', 'minimalprofile');
	}
}