When installing Capsule on a WordPress multisite network, the network active plugins can interfere with Capsule and stop it from working. This snippet, when installed as a mu-plugin, will disable all network active plugins for sites that use the Capsule theme.

disable-sitewide-plugins.php

<?php

/**
 * Plugin Name: Disable Sitewide Plugins
 * Author: Shea Bunge
 * Author URI: http://bungeshea.com
 * Version: 0.1
 */

if ( 'capsule' === get_option( 'template' ) ) {
	add_filter( 'pre_site_option_active_sitewide_plugins', '__return_empty_array' );
}