diff --git a/assets/gitbook-fix.css b/assets/gitbook-fix.css
index 9ea7dfe..5b3922f 100644
--- a/assets/gitbook-fix.css
+++ b/assets/gitbook-fix.css
@@ -68,3 +68,13 @@
 .book-summary ul.summary div.summary-container.on + li.divider.block-end {
 	transform: rotateX(180deg);
 }
+
+.book .book-summary ul.summary li span.annotation {
+	padding: 0;
+	font-size: 0.2em;
+	color: rgba(0, 0, 0, 0.2);
+}
+
+.book .book-summary ul.summary li span.annotation:hover {
+	text-decoration: none !important;
+}
diff --git a/constant.php b/constant.php
index e549144..c9c4e01 100644
--- a/constant.php
+++ b/constant.php
@@ -1,9 +1,9 @@
 <?php
 
-define("APP_NAME", "ph-Bookshelf");
-define("VERSION", "0.1");
-define("GITBOOK_VERSION", "3.2.3");
+const APP_NAME = "ph-Bookshelf";
 
-function get_frontpage_generate_version (): string {
-	return APP_NAME." ".VERSION." with Gitbook ".GITBOOK_VERSION;
-}
+const VERSION = "0.1-dev";
+const CHANNEL = "workshop-origin";
+const BRANCH = "master";
+
+const GITBOOK_VERSION = "3.2.3";
diff --git a/index.php b/index.php
index c81dd4a..780e3d1 100644
--- a/index.php
+++ b/index.php
@@ -6,6 +6,7 @@ require_once "./src/Data/PageMeta.php";
 require_once "./lib/Parsedown/Parsedown.php";
 require_once "./src/Utils/PageParse.php";
 require_once "./src/Utils/RequestNotExistException.php";
+require_once "./constant.php";
 
 $parser = new Parsedown();
 
@@ -76,7 +77,22 @@ try {
 			</ul>
 		</div>
 		<nav role="navigation">
-			<?= SiteMeta::getBookshelf()->getHtml(); ?>
+			<ul id='global-container' class='summary'>
+				<?= SiteMeta::getBookshelf()->getHtml(); ?>
+				<li class='divider'></li>
+				<li>
+					<a href='https://github.com/Eyre-S/ph-Bookshelf' target='blank' class='gitbook-link'>
+						Generated with ph-Bookshelf
+						<br/><span class="annotation"><?= sprintf("%s at %s/%s", VERSION, CHANNEL, BRANCH) ?></span>
+					</a>
+				</li>
+				<li>
+					<a href='https://www.gitbook.com' target='blank' class='gitbook-link'>
+						Front-End by GitBook
+						<br/><span class="annotation"><?= GITBOOK_VERSION ?></span>
+					</a>
+				</li>
+			</ul>
 		</nav>
 	</div>
 	<div class="book-body">
diff --git a/src/Data/SiteMeta.php b/src/Data/SiteMeta.php
index fffcc61..de6d135 100644
--- a/src/Data/SiteMeta.php
+++ b/src/Data/SiteMeta.php
@@ -1,10 +1,15 @@
 <?php
 
 require_once "./src/Element/Bookshelf.php";
+require_once "./constant.php";
 
 class SiteMeta {
 	
 	private static Bookshelf $BOOKSHELF;
+
+	static function get_frontpage_generate_version (): string {
+		return APP_NAME." ".VERSION." with Gitbook ".GITBOOK_VERSION;
+	}
 	
 	/**
 	 * @throws Exception
diff --git a/src/Element/Bookshelf.php b/src/Element/Bookshelf.php
index d7ee6b6..03a7f4c 100644
--- a/src/Element/Bookshelf.php
+++ b/src/Element/Bookshelf.php
@@ -71,14 +71,12 @@ class Bookshelf {
 	}
 	
 	public function getHtml (): string {
-		$str = "<ul id='global-container' class='summary'>";
-		$str .= $this->links->getHtml();
+		$str = $this->links->getHtml();
 		$str .= "<li class='divider block-start'></li><div class='summary-container" . (PageMeta::$isMainPage?" on":"") . "'>";
 		$str .= $this->books->getHtml();
 		$str .= "</div><li class='divider block-end'></li>";
 		$str .= PageMeta::$book->getSummaryHtml();
-		$str .= "<li class='divider'></li><li><a href='https://github.com/Eyre-S/ph-Bookshelf' target='blank' class='gitbook-link'>Generated with ph-Bookshelf</a></li><li><a href='https://www.gitbook.com' target='blank' class='gitbook-link'>Front-End by GitBook</a></li>";
-		$str .= "</ul>";
+		$str .= "";
 		return $str;
 	}
 	
diff --git a/template/header.php b/template/header.php
index 32c3488..61117eb 100644
--- a/template/header.php
+++ b/template/header.php
@@ -1,4 +1,3 @@
-<?php require_once "./constant.php" ?>
 <?php require_once "./src/Data/SiteMeta.php" ?>
 <?php require_once "./src/Data/PageMeta.php" ?>
 <!DOCTYPE HTML>
@@ -17,7 +16,7 @@
 		<!-- Unused: <link rel="apple-touch-icon-precomposed" sizes="152x152" href="gitbook/images/apple-touch-icon-precomposed-152.png"> -->
 		<title><?= PageMeta::getPageTitle() ?></title>
 		<meta name="description" content="<?= PageMeta::getDescription() ?>">
-		<meta name="generator" content="<?= get_frontpage_generate_version() ?>">
+		<meta name="generator" content="<?= SiteMeta::get_frontpage_generate_version() ?>">
 		<!-- Gitbook Assets(css) -->
 		<?php
 		foreach (SiteMeta::getGitbookStylesheetsList() as $item) {
