Wordpress: Minimun bootstrap to install

<?php

// ** MySQL settings ** //
define( 'DB_NAME', $dbName);
define( 'DB_USER', $dbUser);
define( 'DB_PASSWORD', $dbPass );
define( 'DB_HOST', $dbHost );
define( 'DB_CHARSET', 'utf8' );
define( 'DB_COLLATE', '' );

$GLOBALS['table_prefix'] = $dbPrefix;

define('WP_INSTALLING', true);
define('ABSPATH', $this->appRoot . '/' );

define('WP_CONTENT_DIR', ABSPATH . 'wp-content' );
define('WPINC', 'wp-includes' );
define('WP_DEBUG', false);
define('WP_LANG_DIR', ABSPATH . WPINC . '/languages' );

$this->site->loadLegacyFile('wp-includes/functions.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-error.php' );
$this->site->loadLegacyFile('wp-includes/load.php' );
$this->site->loadLegacyFile('wp-includes/default-constants.php' );
$this->site->loadLegacyFile('wp-includes/plugin.php' );
$this->site->loadLegacyFile('wp-includes/option.php' );
$this->site->loadLegacyFile('wp-includes/pomo/translations.php');
$this->site->loadLegacyFile('wp-includes/l10n.php');
$this->site->loadLegacyFile('wp-includes/theme.php' );

wp_initial_constants();
require_wp_db();
wp_set_wpdb_vars();
wp_templating_constants();

$this->site->loadLegacyFile('wp-includes/class-wp-walker.php');
$this->site->loadLegacyFile('wp-includes/kses.php' );
$this->site->loadLegacyFile('wp-includes/formatting.php' );
$this->site->loadLegacyFile('wp-includes/capabilities.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-role.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-roles.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-user.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-theme.php' );
$this->site->loadLegacyFile('wp-includes/class-phpass.php' );
$this->site->loadLegacyFile('wp-includes/post.php' );
$this->site->loadLegacyFile('wp-includes/meta.php' );
$this->site->loadLegacyFile('wp-includes/general-template.php' );
$this->site->loadLegacyFile('wp-includes/link-template.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-post.php' );
$this->site->loadLegacyFile('wp-includes/rewrite.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-rewrite.php' );
$this->site->loadLegacyFile('wp-includes/http.php' );
$this->site->loadLegacyFile('wp-includes/class-http.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-http-response.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-http-requests-response.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-http-proxy.php' );
$this->site->loadLegacyFile('wp-includes/class-wp-http-requests-hooks.php' );

$GLOBALS['wp_rewrite'] = new \WP_Rewrite();

$this->site->loadLegacyFile('wp-includes/pluggable.php' );
$this->site->loadLegacyFile('wp-includes/user.php');
$this->site->loadLegacyFile('wp-admin/includes/upgrade.php' );

wp_start_object_cache();

$this->site->loadLegacyFile('wp-includes/cache.php' );


$result = wp_install( $siteName, $accountName, $accountMail, $public, '', $accountPass );