diff --git a/www/extern/egg/RemoteSource.php b/www/extern/egg/RemoteSource.php
index 6e248b9..7a01e61 100644
--- a/www/extern/egg/RemoteSource.php
+++ b/www/extern/egg/RemoteSource.php
@@ -329,7 +329,7 @@ abstract class StandardGitConnection implements IRemoteSource
 			$json = $this->queryCommits($repo->Name, $branch->Name, $next_sha[0]);
 		}
 
-		$this->logger->proclog("HEAD pointer in Branch: [" . $this->name . "|" . $repo->Name . "|" . $branch->Name . "] no longer matches. Re-query all " . count($newcommits) . " commits (old HEAD := {".substr($branch->Head, 0, 8)."}, missing: [" . join(", ", array_map(function($p){return substr($p, 0, 8);}, $next_sha)) . "] )");
+		$this->logger->proclog("HEAD pointer in Branch: [" . $this->name . "|" . $repo->Name . "|" . $branch->Name . "] no longer matches. Re-query all " . count($newcommits) . " commits (old HEAD := {".substr($branch->Head ?? 'NULL', 0, 8)."}, missing: [" . join(", ", array_map(function($p){return substr($p ?? 'NULL', 0, 8);}, $next_sha)) . "] )");
 
 		$db->deleteAllCommits($branch);
 
diff --git a/www/internals/modules.php b/www/internals/modules.php
index df79928..38acd0e 100644
--- a/www/internals/modules.php
+++ b/www/internals/modules.php
@@ -81,7 +81,7 @@ class Modules
 
 	public function ExtendedGitGraph(): MikescherGitGraph
 	{
-		if ($this->extendedgitgraph === null) { require_once 'modules/mikeschergitgraph.php'; $this->extendedgitgraph = new MikescherGitGraph($this->site); }
+		if ($this->extendedgitgraph === null) { require_once 'modules/mikeschergitgraph.php'; $this->extendedgitgraph = new MikescherGitGraph($this->site->config['extendedgitgraph']); }
 		return $this->extendedgitgraph;
 	}
 
diff --git a/www/internals/modules/mikeschergitgraph.php b/www/internals/modules/mikeschergitgraph.php
index 06220c7..cf2c66f 100644
--- a/www/internals/modules/mikeschergitgraph.php
+++ b/www/internals/modules/mikeschergitgraph.php
@@ -1,29 +1,30 @@
 <?php
 
 require_once (__DIR__ . '/../../extern/egg/ExtendedGitGraph2.php');
+require_once (__DIR__ . '/../iwebsitemodule.php');
 
 class MikescherGitGraph implements IWebsiteModule
 {
 	/** @var ExtendedGitGraph2 */
-	private $extgitgraph;
+	private ExtendedGitGraph2 $extgitgraph;
 
 	/** @noinspection PhpUnhandledExceptionInspection */
-	public function __construct(Website $site)
+	public function __construct(array $egh_conf)
 	{
-		$this->extgitgraph = new ExtendedGitGraph2($site->config['extendedgitgraph']);
+		$this->extgitgraph = new ExtendedGitGraph2($egh_conf);
 	}
 
-	public function getPathRenderedData()
+	public function getPathRenderedData(): string
 	{
 		return __DIR__ . '/../../dynamic/egg/cache_fullrenderer.html';
 	}
 
-	public function update()
+	public function update(): bool
 	{
 		return $this->extgitgraph->update();
 	}
 
-	public function updateCache()
+	public function updateCache(): ?string
 	{
 		return $this->extgitgraph->updateCache();
 	}
@@ -31,14 +32,14 @@ class MikescherGitGraph implements IWebsiteModule
 	/**
 	 * @return string|null
 	 */
-	public function get()
+	public function get(): ?string
 	{
 		$d = $this->extgitgraph->loadFromCache();
 		if ($d === null) return "";
 		return $d;
 	}
 
-	public function checkConsistency()
+	public function checkConsistency(): array
 	{
 		$p = $this->getPathRenderedData();
 
diff --git a/www/shell/.htaccess b/www/shell/.htaccess
new file mode 100644
index 0000000..14249c5
--- /dev/null
+++ b/www/shell/.htaccess
@@ -0,0 +1 @@
+Deny from all
\ No newline at end of file
diff --git a/www/shell/extendedgitgraph_refresh.php b/www/shell/extendedgitgraph_refresh.php
new file mode 100644
index 0000000..64b037d
--- /dev/null
+++ b/www/shell/extendedgitgraph_refresh.php
@@ -0,0 +1,52 @@
+#!/usr/bin/php
+
+<?php
+
+if (php_sapi_name() !== "cli") die("[cli only!]");
+
+set_time_limit(6*60*60); // 6h
+ini_set("display_errors", 1);
+ini_set("display_startup_errors", 1);
+error_reporting(E_ALL);
+
+echo "\n";
+echo "==================================== Init ====================================\n";
+echo "\n";
+
+$config = (require (__DIR__ . '/../config.php'))['extendedgitgraph'];
+$config['output_session'] = false;
+$config['output_file'] = false;
+$config['output_stdout'] = true;
+
+require_once __DIR__ .'/../internals/modules/mikeschergitgraph.php';
+
+$egg = new MikescherGitGraph($config);
+
+echo "\n";
+echo "================================ Start Update ================================\n";
+echo "\n";
+
+$r1 = $egg->update();
+if (!$r1)
+{
+	echo "EGG::update failed.\n";
+	exit(99);
+}
+
+echo "\n";
+echo "============================= Start Update-Cache =============================\n";
+echo "\n";
+
+$r2 = $egg->updateCache();
+if (!$r2)
+{
+	echo "EGG::updateCache failed.";
+	exit(99);
+}
+
+echo "\n";
+echo "==============================================================================\n";
+echo "\n";
+
+echo "Done.\n";
+exit(0);
\ No newline at end of file