[WordPress] Gives an example of how to initialize a WordPress hook through the use of priorities and existing actions.

00-pressware-start-acme-class.php

<?php

add_action( 'current_screen', 'pressware_start_acme_class', 99, 0 );
/**
 * Registers and enqueues the code responsible for #dowork
 *
 * @since 1.0.0
 */
function pressware_start_acme_class() {

	$plugin = new Acme_Class();
	$plugin->init();

}