diff --git a/.gitignore b/.gitignore
index 3124bd8..a7624e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,7 @@ tools/items/mc-art-viewer/nbt.js
 *.url
 *.env
 *.sqlite
+*.conf
 
 # Temporary
 articles/*.txt
diff --git a/.htaccess b/.htaccess
index e6f9e23..789c6da 100644
--- a/.htaccess
+++ b/.htaccess
@@ -3,6 +3,11 @@
     Require all denied
 </Files>
 
+# Preventing access to wrongly copied .conf files
+<Files ~ "^.*\.conf">
+    Require all denied
+</Files>
+
 
 # Redirecting HTTP traffic to HTTPS. (Keep commented on localhost !)
 # This is handled by reverse-proxies, but it should still be enabled in production just to be safe.
diff --git a/commons/DOM/head.php b/commons/DOM/head.php
index 0771226..0ea307e 100644
--- a/commons/DOM/head.php
+++ b/commons/DOM/head.php
@@ -11,7 +11,7 @@ if(basename(__FILE__) == basename($_SERVER["SCRIPT_FILENAME"])) {
 <meta name="viewport" content="width=device-width"/>
 <link rel="icon" type="image/svg+xml" href="/favicon.svg">
 <link rel="alternate icon" href="/favicon.ico">
-<link rel="stylesheet" href="/resources/FontAwesomePro/5.15.3/css/all.min.css">
+<link rel="stylesheet" href="/resources/FontAwesomePro/6.5.1/css/all.min.css">
 <link rel="stylesheet" href="/resources/NibblePoker/css/nibblepoker.min.css?v=1">
 <?php
 if($enable_code_highlight) {
diff --git a/commons/DOM/sidebar.php b/commons/DOM/sidebar.php
index c049824..2869719 100644
--- a/commons/DOM/sidebar.php
+++ b/commons/DOM/sidebar.php
@@ -35,10 +35,10 @@ function printSidebarEntry($url, $title, $icon, $activeId) {
 	?>
 	<hr class="subtle">
 	<?php
-	//printSidebarEntry(l10n_url_abs('/content/'), localize("sidebar.text.projects"), "fad fa-briefcase", "content");
 	printSidebarEntry(l10n_url_abs('/content/?tags=application;web'), localize("sidebar.text.applications"), "fad fa-browser", "application");
 	printSidebarEntry(l10n_url_abs('/content/?tags=library'), localize("sidebar.text.libraries"), "fad fa-puzzle-piece", "library");
-	//printSidebarEntry(l10n_url_abs('/content/?tags=electronic'), localize("sidebar.text.electronics"), "fad fa-microchip", "electronic");
+	//printSidebarEntry(l10n_url_abs('/content/?tags=library'), localize("sidebar.text.libraries"), "fad fa-chart-scatter-3d", "library");
+	printSidebarEntry(l10n_url_abs('/content/?tags=electronic'), localize("sidebar.text.electronics"), "fad fa-microchip", "electronic");
 	?>
 	<?php
 	//<hr class="subtle">
@@ -48,7 +48,7 @@ function printSidebarEntry($url, $title, $icon, $activeId) {
 	<?php
 	printSidebarEntry(l10n_url_abs('/links/'), localize("sidebar.text.links"), "fad fa-link", "links");
 	printSidebarEntry("https://files.nibblepoker.lu/", localize("sidebar.text.downloads"), "fad fa-download", "");
-	printSidebarEntry("https://git.nibblepoker.lu/", localize("sidebar.text.gitea"), "fad fa-code", "");
+	//printSidebarEntry("https://git.nibblepoker.lu/", localize("sidebar.text.gitea"), "fad fa-code", "");
 	//printSidebarEntry("https://wiki.nibblepoker.lu/", localize("sidebar.text.wiki"), "fad fa-books", "");
 	?>
 	<hr class="subtle">
diff --git a/commons/config.php b/commons/config.php
index e534ac7..31bd50c 100644
--- a/commons/config.php
+++ b/commons/config.php
@@ -38,6 +38,9 @@ $enable_kitty_and_doggo_sounds = false;
 // > Belgium's independence day.
 $enable_waffle_iron = date('m-d') === '07-21';
 
+// > Luxembourg's national day.
+$enable_bouneschlupp_mode = date('m-d') === '06-23';
+
 // Debugging stuff
 $print_execution_timer = true;
 ?>
\ No newline at end of file
diff --git a/commons/content.php b/commons/content.php
index cf4ea31..30c5ca1 100644
--- a/commons/content.php
+++ b/commons/content.php
@@ -198,4 +198,4 @@ function getContentManager(string $contentRootPath): ContentManager {
 	);
 }
 
-?>
+?>
\ No newline at end of file
diff --git a/commons/content/article.php b/commons/content/article.php
new file mode 100644
index 0000000..15c5adc
--- /dev/null
+++ b/commons/content/article.php
@@ -0,0 +1,3 @@
+<?php
+
+?>
\ No newline at end of file
diff --git a/commons/content/content.php b/commons/content/content.php
new file mode 100644
index 0000000..15c5adc
--- /dev/null
+++ b/commons/content/content.php
@@ -0,0 +1,3 @@
+<?php
+
+?>
\ No newline at end of file
diff --git a/commons/content/data/metadata.php b/commons/content/data/metadata.php
new file mode 100644
index 0000000..eb12dcb
--- /dev/null
+++ b/commons/content/data/metadata.php
@@ -0,0 +1,19 @@
+<?php
+// Making sure the file is included and not accessed directly.
+if(basename(__FILE__) == basename($_SERVER["SCRIPT_FILENAME"])) {
+	header('HTTP/1.1 403 Forbidden');
+	die();
+}
+
+// Including required helpers.
+include_once 'commons/langs.php';
+
+// Including subclasses.
+include_once 'commons/content/data/opengraph.php';
+include_once 'commons/content/data/twitter_card.php';
+
+class ContentMetadata {
+
+}
+
+?>
\ No newline at end of file
diff --git a/commons/content/opengraph.php b/commons/content/data/opengraph.php
similarity index 99%
rename from commons/content/opengraph.php
rename to commons/content/data/opengraph.php
index 3587c84..77a732a 100644
--- a/commons/content/opengraph.php
+++ b/commons/content/data/opengraph.php
@@ -49,4 +49,4 @@ class OpenGraphData {
 		);
 	}
 }
-?>
+?>
\ No newline at end of file
diff --git a/commons/content/data/twitter_card.php b/commons/content/data/twitter_card.php
new file mode 100644
index 0000000..97194a2
--- /dev/null
+++ b/commons/content/data/twitter_card.php
@@ -0,0 +1,20 @@
+<?php
+
+/*enum Suit {
+case Hearts;
+case Diamonds;
+case Clubs;
+case Spades;
+}*/
+
+// See: https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/markup
+/*class ContentTwitterMetadata {
+public string $title;
+public string $description;
+public string $type;
+public string $url;
+public string $image;
+public string $image_type;
+}*/
+
+?>
diff --git a/commons/langs.php b/commons/langs.php
index 588bcbd..a57be04 100644
--- a/commons/langs.php
+++ b/commons/langs.php
@@ -92,7 +92,7 @@ function localize_private(string $string_key, array $private_lang_data, bool $fa
 		}
 	}
 	if($fallback_to_common) {
-		// If we can attempt to fallback on the common lang file.
+		// If we can attempt to fall back on the common lang file.
 		return localize_private($fallback_prefix . $string_key, $lang_data, false);
 	}
 	
@@ -128,4 +128,4 @@ function l10n_url_switch($lang) : string {
 	}
 }
 
-?>
+?>
\ No newline at end of file
diff --git a/commons/listing.php b/commons/listing.php
index 2765993..bfd48a8 100644
--- a/commons/listing.php
+++ b/commons/listing.php
@@ -66,4 +66,4 @@ function getDirectoryContent(string $dirPath, array $filteringRegexes, int $recu
     return $returnedData;
 }
 
-?>
+?>
\ No newline at end of file
diff --git a/commons/modals.php b/commons/modals.php
index e5577d1..5400f62 100644
--- a/commons/modals.php
+++ b/commons/modals.php
@@ -30,4 +30,4 @@ function add_code_modal(string $id, string $title, string $text) {
 </div>');
 }
 
-?>
+?>
\ No newline at end of file
diff --git a/compress.bat b/compress.bat
index a03d204..da2c5d0 100644
--- a/compress.bat
+++ b/compress.bat
@@ -32,6 +32,7 @@ set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "contributors/"
 set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "links/"
 set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "privacy/"
 set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "resources/FontAwesomePro/5.15.3/"
+set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "resources/FontAwesomePro/6.5.1/"
 set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "resources/HighlightJS/highlight.min.js" "resources/HighlightJS/src/styles/atom-one-dark.min.css"
 set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "resources/NibblePoker/css/"
 set NP_ZIP_CONTENT=%NP_ZIP_CONTENT% "resources/NibblePoker/images/*.png"
diff --git a/index.php b/index.php
index 9e7b8cc..c2abb73 100644
--- a/index.php
+++ b/index.php
@@ -1,4 +1,5 @@
 <?php
+// Common setup
 $start_time = microtime(true);
 set_include_path('./');
 include_once 'commons/config.php';
diff --git a/resources/NibblePoker/images/content/formula-wizard/v1.png b/resources/NibblePoker/images/content/formula-wizard/v1.png
index ba3eb30..d0a48bf 100644
Binary files a/resources/NibblePoker/images/content/formula-wizard/v1.png and b/resources/NibblePoker/images/content/formula-wizard/v1.png differ
diff --git a/resources/NibblePoker/images/content/lscom/lscom-legacy-simple.png b/resources/NibblePoker/images/content/lscom/lscom-legacy-simple.png
index 68133ee..4470a7a 100644
Binary files a/resources/NibblePoker/images/content/lscom/lscom-legacy-simple.png and b/resources/NibblePoker/images/content/lscom/lscom-legacy-simple.png differ
diff --git a/robots.php b/robots.php
index ec9f4d8..5f60543 100644
--- a/robots.php
+++ b/robots.php
@@ -15,6 +15,8 @@ switch($_SERVER['SERVER_NAME']) {
 		http_response_code(400);
 		exit(1);
 }
-http_response_code(200);
+
+// Finishing the response.
+//http_response_code(200);
 exit(0);
 ?>
diff --git a/sitemap.php b/sitemap.php
index 6058652..1c4e7ed 100644
--- a/sitemap.php
+++ b/sitemap.php
@@ -40,6 +40,6 @@ foreach(SITEMAP_LANGUAGES as $language_key) {
 }
 
 // Finishing the response.
-http_response_code(200);
+//http_response_code(200);
 exit(0);
 ?>