diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..88876930c
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "_build/env"]
+	path = _build/env
+	url = https://github.com/dimasites/modx-build-environment-gui
diff --git a/_build/env b/_build/env
new file mode 160000
index 000000000..f59f17a88
--- /dev/null
+++ b/_build/env
@@ -0,0 +1 @@
+Subproject commit f59f17a8812cf5da2fef6283294eecc29f28a46e
diff --git a/_build/index.php b/_build/index.php
deleted file mode 100644
index fb8d0a7be..000000000
--- a/_build/index.php
+++ /dev/null
@@ -1,57 +0,0 @@
-<?php
-//MODX BUILD ENVIRONMENT GUI v1
-
-const MODX_CORE_PATH = MODX_BASE_PATH . 'core/';
-
-if (!isset($_REQUEST['getpackage']) && empty($_REQUEST['getpackage'])) {
-
-    $current_dir = dirname(__FILE__);
-
-    $scanned_directory = array_diff(scandir($current_dir), array('..', '.'));
-    echo "<h1>MODX build environment GUI</h1>";
-    echo "<b>Available packages for build:</b> (with versions from build.config.php if exists)<br/><br/>";
-    //echo "<b>Данные о версии берутся из файла конфигурации пакета</b> (build.config.php)<br/><br/>";
-    foreach ($scanned_directory as $packagename) {
-        if (is_dir($current_dir.'/'.$packagename)) {
-            $config = file_get_contents($current_dir.'/'.$packagename.'/'."build.config.php");
-            /*parse version*/
-            $version_preg = "#PKG_VERSION['\",=\s]*([0-9\.]+)#";
-            $release_preg = "#PKG_RELEASE['\",=\s]*([a-z0-9\.]+)['\"]#";
-            $version = '';
-            $matches = [];
-            if (preg_match($version_preg, $config, $matches)) {
-                $version .= $matches[1];
-            }
-            if (preg_match($release_preg, $config, $matches)) {
-                $version .= '-'.$matches[1];
-            }
-            echo "<b>{$packagename}</b>&nbsp;<a target='_blank' href='/_build/{$packagename}/build.transport.php'>[build package]</a> (".$version.")<br/><br/>";
-        }
-    }
-
-    echo "<div style='color:#aaa; margin-top: 200px'>Made for MODX RSC by @dimasites and friends</div>";
-
-}else{
-// Define paths
-    if (isset($_SERVER['MODX_BASE_PATH'])) {
-        define('MODX_BASE_PATH', $_SERVER['MODX_BASE_PATH']);
-    } elseif (file_exists(dirname(__FILE__, 2) . '/core')) {
-        define('MODX_BASE_PATH', dirname(__FILE__, 2) . '/');
-    } else {
-        define('MODX_BASE_PATH', dirname(__FILE__, 3) . '/');
-    }
-
-    $file = MODX_CORE_PATH.'packages/'.$_REQUEST['getpackage'].'.transport.zip';
-
-    if (file_exists($file)) {
-        header('Content-Description: File Transfer');
-        header('Content-Type: application/octet-stream');
-        header('Content-Disposition: attachment; filename="' . basename($file) . '"');
-        header('Expires: 0');
-        header('Cache-Control: must-revalidate');
-        header('Pragma: public');
-        header('Content-Length: ' . filesize($file));
-        readfile($file);
-        exit;
-    }
-}
diff --git a/_build/minishop2/build.transport.php b/_build/minishop2/build.transport.php
index 6d5bb08c9..f80ee3bf1 100644
--- a/_build/minishop2/build.transport.php
+++ b/_build/minishop2/build.transport.php
@@ -305,8 +305,8 @@
 }
 $modx->log(modX::LOG_LEVEL_INFO, "\n<br />Execution time: {$totalTime}\n");
 
-$download_url = '/_build/index.php?getpackage='.PKG_NAME_LOWER.'-'.PKG_VERSION.'-'.PKG_RELEASE;
-$modx->log(modX::LOG_LEVEL_INFO,"\n<br /><a target='_blank' href='{$download_url}'>Download package</a><br />\n");
+$download_url = '/_build/env/index.php?getpackage='.PKG_NAME_LOWER.'-'.PKG_VERSION.'-'.PKG_RELEASE;
+$modx->log(modX::LOG_LEVEL_INFO,"\n<br /><a target='_blank' href='{$download_url}'>[DOWNLOAD PACKAGE]</a><br />\n");
 
 echo '</pre>';