diff --git a/homepage/participo/.gitignore b/homepage/participo/.gitignore
index be8da08..e047986 100644
--- a/homepage/participo/.gitignore
+++ b/homepage/participo/.gitignore
@@ -1 +1,3 @@
-local/*.php
\ No newline at end of file
+local/*.php
+node_modules/*
+testApi.config.yaml
diff --git a/homepage/participo/.vscode/launch.json b/homepage/participo/.vscode/launch.json
new file mode 100644
index 0000000..b2fddbf
--- /dev/null
+++ b/homepage/participo/.vscode/launch.json
@@ -0,0 +1,20 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "post",
+            "type": "python",
+            "request": "launch",
+            "program": "testApi.py",
+            "console": "integratedTerminal",
+            "justMyCode": true,
+            "args": [
+                "POST",
+                "--input", "testShiai.json"
+            ]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/homepage/participo/.vscode/settings.json b/homepage/participo/.vscode/settings.json
index 1da7818..d248b80 100644
--- a/homepage/participo/.vscode/settings.json
+++ b/homepage/participo/.vscode/settings.json
@@ -1,7 +1,16 @@
 {
+    "cSpell.language": "en,de-de",
     "cSpell.words": [
+        "CURDATE",
+        "cwsv",
+        "cwsvjudo",
         "participo",
         "retval",
-        "shiai"
+        "shiai",
+        "vormundschaft",
+        "wettkampfkalender"
+    ],
+    "prettier.documentSelectors": [
+        "**/*.{js,jsx,ts,tsx,vue,html,css,scss,less,json,md,mdx,graphql,yaml,yml,php}"
     ]
 }
\ No newline at end of file
diff --git a/homepage/participo/.vscode/sftp.json b/homepage/participo/.vscode/sftp.json
index 447647d..fbe7d1e 100644
--- a/homepage/participo/.vscode/sftp.json
+++ b/homepage/participo/.vscode/sftp.json
@@ -7,7 +7,10 @@
     "remotePath": "/www/participo",
     "ignore": [
         ".vscode",
-        "*.py"
+        "*.py",
+        "*.config.yaml",
+        "package.json", "package-lock.json"
+        , "node-modules"
     ],
     "uploadOnSave": true
 }
\ No newline at end of file
diff --git a/homepage/participo/api/inc/.htaccess b/homepage/participo/api/inc/.htaccess
new file mode 100644
index 0000000..3a42882
--- /dev/null
+++ b/homepage/participo/api/inc/.htaccess
@@ -0,0 +1 @@
+Deny from all
diff --git a/homepage/participo/api/inc/bootstrap.php b/homepage/participo/api/inc/bootstrap.php
new file mode 100644
index 0000000..9836fb3
--- /dev/null
+++ b/homepage/participo/api/inc/bootstrap.php
@@ -0,0 +1,52 @@
+<?php
+/// @file common settings and includes for the participo api
+/// - set locale to german 
+setlocale(LC_ALL, "de_DE@euro", "de_DE", "de", "ge");
+/// - extend the include search path for 
+set_include_path(implode(
+    PATH_SEPARATOR,
+    [
+        get_include_path(),
+/// - user defined libs (e.g. participo)
+        "../lib",
+/// - config files (we reuse the participo-wide configuration)
+        ".."
+    ]
+));
+
+/// - participo configuration
+require_once("config/participo.php");
+/// - data base credentials
+require_once("local/cwsvJudo.php");
+
+/// - since this is a rest api implementation we can assume each endpoint needs dbAccess
+require_once("participoLib/dbConnector.php");
+
+function authorize()
+{
+    if (array_key_exists("HTTP_AUTHORIZATION", $_SERVER)) {
+        if (!empty($_SERVER["HTTP_AUTHORIZATION"])) {
+            $auth = explode(" ", $_SERVER["HTTP_AUTHORIZATION"]);
+            if ($auth[0] = "Basic") {
+                $allowKey = ApiKey::loadFromDb($auth[1]);
+            }
+        }
+    }
+
+    if (!$allowKey || !$allowKey->isValidFor("api")) {
+        die(
+            json_encode([
+                "success" => false,
+                "reason" => "apiKey not sufficient or no api key provided",
+            ])
+        );
+    }
+}
+
+/// - initialize the database connection
+dbConnector::connect(
+    $cwsvJudoConfig["db"]["host"],
+    $cwsvJudoConfig["db"]["name"],
+    $cwsvJudoConfig["db"]["user"],
+    $cwsvJudoConfig["db"]["password"]
+);
diff --git a/homepage/participo/api/index.php b/homepage/participo/api/index.php
new file mode 100644
index 0000000..8559627
--- /dev/null
+++ b/homepage/participo/api/index.php
@@ -0,0 +1,13 @@
+ <?php
+header('Content-Type: application/json');
+
+// $endpoint = $_SERVER['REQUEST_URI'];
+
+// switch ($endpoint){
+//     case '/':
+//         echo json_encode([
+//             'message' => 'Welcome to the API'
+//         ]);
+//         break;
+// }
+?>
\ No newline at end of file
diff --git a/homepage/participo/api/shiai.php b/homepage/participo/api/shiai.php
new file mode 100644
index 0000000..54d199c
--- /dev/null
+++ b/homepage/participo/api/shiai.php
@@ -0,0 +1,54 @@
+<?php
+require_once("inc/bootstrap.php");
+
+require_once("participoLib/shiai.php");
+
+$method = $_SERVER['REQUEST_METHOD'];
+
+// Sending Response
+// - we send a json-formatted response
+header("Content-Type: application/json");
+// - check if an valid api key was send 
+authorize();
+// - depending on the method we perform different actions 
+switch($method){
+	// Create
+	case 'POST':
+		$postData = json_decode(file_get_contents('php://input'), true);
+		if(!$postData){
+			die(json_encode([
+				'error'=>$postData . " not valid json data!" 
+			]));
+		}
+		die(json_encode(
+			Shiai::fromArray($postData)->asArray()
+		));
+		break;
+	// Read
+	case 'GET':
+		echo(json_encode(
+			Shiai::dbSelect()
+		));
+		break;
+	// Update
+	case 'PUT':
+		die(json_encode([
+			'success'=>false,
+			'reason'=>$method.".not supported yet."
+		]));
+		break;
+	// Delete
+	case 'DELETE':
+		die(json_encode([
+			'success'=>false,
+			'reason'=>$method.".not supported yet."
+		]));
+		break;
+	// all other methods not supported
+	default:
+		die(json_encode([
+			'success'=>false,
+			'reason'=>$method.".not supported."
+		]));
+}
+?>
diff --git a/homepage/participo/api/trainees.php b/homepage/participo/api/trainees.php
new file mode 100644
index 0000000..8bf39de
--- /dev/null
+++ b/homepage/participo/api/trainees.php
@@ -0,0 +1,37 @@
+<?php
+require_once("inc/bootstrap.php");
+
+require_once 'participoLib/apiKey.php';
+
+function get()
+{
+    $wkSqlQuery =
+        "SELECT DISTINCT" .
+        "  `wkParticipo_Users`.* " .
+        " FROM `wkParticipo_Users`" .
+        " JOIN `wkParticipo_user<=>userAttributes`" .
+        "   ON `wkParticipo_user<=>userAttributes`.`userId` = `wkParticipo_Users`.`id`" .
+        " WHERE `wkParticipo_user<=>userAttributes`.`attributeId` = 4". 
+        " ORDER BY `wkParticipo_Users`.`id` ASC;";
+
+    $wkSqlResponse = dbConnector::query($wkSqlQuery);
+
+    // Postprocessing
+    // - convert the comma separated list into an array
+    foreach ($wkSqlResponse as &$user) {
+        $user["eMail"] = explode(",", $user["eMail"]);
+        foreach ($user["eMail"] as &$email) {
+            $email = trim($email);
+        }
+    }
+    return $wkSqlResponse;
+}
+
+authorize();
+$wkSqlResponse = get();
+
+// Sending Response
+// - setting header
+header("Content-Type: application/json");
+// - sending body payload
+echo json_encode($wkSqlResponse);
diff --git a/homepage/participo/api/users.php b/homepage/participo/api/users.php
new file mode 100644
index 0000000..93820b4
--- /dev/null
+++ b/homepage/participo/api/users.php
@@ -0,0 +1,81 @@
+<?php
+setlocale(LC_ALL, "de_DE@euro", "de_DE", "de", "ge");
+set_include_path(
+    get_include_path() . PATH_SEPARATOR . "../lib/" . PATH_SEPARATOR . ".."
+);
+
+require_once "config/participo.php";
+require_once "local/cwsvJudo.php";
+
+require_once "participoLib/participo.php";
+
+function init($config)
+{
+    dbConnector::connect(
+        $config["db"]["host"],
+        $config["db"]["name"],
+        $config["db"]["user"],
+        $config["db"]["password"]
+    );
+}
+
+function authorize()
+{
+    if (array_key_exists("HTTP_AUTHORIZATION", $_SERVER)) {
+        if (!empty($_SERVER["HTTP_AUTHORIZATION"])) {
+            $auth = explode(" ", $_SERVER["HTTP_AUTHORIZATION"]);
+            if ($auth[0] = "Basic") {
+                $allowKey = ApiKey::loadFromDb($auth[1]);
+            }
+        }
+    }
+
+    if (!$allowKey || !$allowKey->isValidFor("api")) {
+        die(
+            json_encode([
+                "success" => false,
+                "reason" => "apiKey not sufficient or no api key provided",
+            ])
+        );
+    }
+}
+
+function get()
+{
+    $wkSqlQuery =
+        "SELECT DISTINCT" .
+        "  `wkParticipo_Users`.* " .
+        " FROM `wkParticipo_Users`" .
+        " JOIN `vormundschaft`" .
+        "   ON `wkParticipo_Users`.`id` =`vormundschaft`.`userId`" .
+        " JOIN `wkParticipo_user<=>userAttributes`" .
+        "   ON `wkParticipo_user<=>userAttributes`.`userId` = `vormundschaft`.`kidId`" .
+        " WHERE `wkParticipo_user<=>userAttributes`.`attributeId` = 4" .
+        " ORDER BY `wkParticipo_Users`.`id` ASC;";
+
+    $wkSqlResponse = dbConnector::query($wkSqlQuery);
+
+    // Postprocessing
+    // - convert the comma separated list into an array
+    foreach ($wkSqlResponse as &$user) {
+        $user["eMail"] = explode(",", $user["eMail"]);
+        foreach ($user["eMail"] as &$email) {
+            $email = trim($email);
+        }
+    }
+    return $wkSqlResponse;
+}
+
+init($cwsvJudoConfig);
+authorize();
+$wkSqlResponse = get();
+
+// Sending Response
+// - setting header
+header("Content-Type: application/json");
+// - sending body payload
+echo json_encode($wkSqlResponse);
+
+// exit(0);
+
+?>
diff --git a/homepage/participo/event.php b/homepage/participo/event.php
index c3bc23a..2da7d96 100644
--- a/homepage/participo/event.php
+++ b/homepage/participo/event.php
@@ -3,8 +3,6 @@ setlocale(LC_ALL, 'de_DE@euro', 'de_DE', 'de', 'ge');
 set_include_path(get_include_path() . PATH_SEPARATOR . './lib/');
 
 require_once 'participoLib/event.php';
-// require_once 'participoLib/starter.php';
-// require_once 'participoLib/planer.php';
 
 // Configs
 require_once 'config/participo.php';
@@ -46,4 +44,4 @@ participo::init($cwsvJudoConfig);
     </main>
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/homepage/participo/index.js b/homepage/participo/index.js
index 1c3b19f..ade2266 100644
--- a/homepage/participo/index.js
+++ b/homepage/participo/index.js
@@ -1,9 +1,13 @@
 // What to do when the document is loaded.
-document.addEventListener('DOMContentLoaded', function () {
-    // init materialize elements
-    initModals();
-    initSidenav();
-});
+document.addEventListener(
+    'DOMContentLoaded'
+    , function () {
+        // init materialize elements
+        initModals();
+        initSidenav();
+        initSelects();
+    }
+);
 
 function initSidenav() {
     var sidenavElements = document.querySelectorAll('.sidenav');
diff --git a/homepage/participo/index.php b/homepage/participo/index.php
index 8d0b7eb..14b1878 100644
--- a/homepage/participo/index.php
+++ b/homepage/participo/index.php
@@ -1,6 +1,4 @@
-<?php
-require_once 'index.inc.php';
-?>
+<?php require_once 'index.inc.php'; ?>
 <!DOCTYPE html>
 <html>
 	<head>
diff --git a/homepage/participo/lib/participoLib/apiKey.php b/homepage/participo/lib/participoLib/apiKey.php
index 77bfba1..5b31871 100644
--- a/homepage/participo/lib/participoLib/apiKey.php
+++ b/homepage/participo/lib/participoLib/apiKey.php
@@ -132,7 +132,7 @@ class ApiKey
 		// @todo differentiate between inserting and updating if the id is set it should only be updated (e.g. prolonging)
 	}
 
-	/** create an Api key from the return of an sql select * */
+	/** create an Api key from the return of an sql select */
 	private static function fromDbArray(array $apiKey)
 	{
 		return new ApiKey(
diff --git a/homepage/participo/lib/participoLib/dbConnector.php b/homepage/participo/lib/participoLib/dbConnector.php
index f0ea0f0..1af8c20 100644
--- a/homepage/participo/lib/participoLib/dbConnector.php
+++ b/homepage/participo/lib/participoLib/dbConnector.php
@@ -28,7 +28,7 @@ class dbConnector
 	public static function query($aQueryString, $aBindArray = [], $someOptions = [])
 	{
 		// var_dump($aQueryString, $aBindArray);
-		// Standardbelegungen
+				// Standardbelegungen
 		if (empty($someOptions['dbCharset'])) {
 			$someOptions['dbCharset'] = 'ISO-8859-1';
 		}
@@ -65,7 +65,7 @@ class dbConnector
 				);
 			}
 			$pdoResult = $pdoStatement->execute();
-			if (!$ignoreErrors && !$pdoResult) {
+						if (!$ignoreErrors && !$pdoResult) {
 				echo("Error during dbQuery!\n");
 				echo("DB-Error:\n");
 				var_dump(self::$db->errorInfo());
@@ -128,6 +128,7 @@ class dbConnector
 		} else {
 			self::$db = null;
 		}
+		return $success;
 	}
 
 	public static function debugEchoQuery($query, $params)
diff --git a/homepage/participo/lib/participoLib/event.php b/homepage/participo/lib/participoLib/event.php
index e08d207..c37e5cf 100644
--- a/homepage/participo/lib/participoLib/event.php
+++ b/homepage/participo/lib/participoLib/event.php
@@ -87,6 +87,9 @@ class Event
 		if ((!isset($this->shiai) || $forceLoading) && isset($this->shiaiId)) {
 			$this->shiai = Shiai::loadFromDb($this->shiaiId);
 		}
+		if ($this->shiai == null){
+			$this->shiai = Shiai::fromDbArray(json_decode($this->remarks, true));
+		}
 		return $this->shiai;
 	}
 
diff --git a/homepage/participo/lib/participoLib/participo.php b/homepage/participo/lib/participoLib/participo.php
index 42fca1d..e0e3861 100644
--- a/homepage/participo/lib/participoLib/participo.php
+++ b/homepage/participo/lib/participoLib/participo.php
@@ -55,7 +55,7 @@ class participo
 	/** lazy loading of the session user */
 	public static function sessionUser(bool $forceLoading = true)
 	{
-		if (is_null($sessionUser) || $forceLoading) {
+		if (is_null(self::$sessionUser) || $forceLoading) {
 			self::$sessionUser = User::loadFromDb(self::getSessionUserId());
 		}
 		return self::$sessionUser;
@@ -250,7 +250,7 @@ class participo
 			'user' => [
 				'username' => $user->getLoginName(),
 				'userId' => $user->getId(),
-				'userConfig' => json_decode($user->getConfig(), true)
+				'userConfig' => $user->getConfig()
 			]
 		];
 
diff --git a/homepage/participo/lib/participoLib/shiai.php b/homepage/participo/lib/participoLib/shiai.php
index 150a1da..1419556 100644
--- a/homepage/participo/lib/participoLib/shiai.php
+++ b/homepage/participo/lib/participoLib/shiai.php
@@ -15,10 +15,16 @@ class Shiai
 	private $galleryUrl = null; //< url of the gallery to a gallery of the shiai
 	private $promoImgUrl = null; //< promotional image for the shiai (as url)
 
-	public function __construct($id, $date, $name, $ageclasses, $place, $announcementUrl, $routeUrl, $galleryUrl, $promoImgUrl)
+	/** name of the table in the db holding the Shiai-s
+	 *
+	 * @var string
+	 */
+	private static $tableName = "wettkampfkalender";
+
+	public function __construct($id, $date, $name, $ageclasses, $place, $announcementUrl, $routeUrl, $galleryUrl=null, $promoImgUrl=null)
 	{
 		//! @todo input validation and sanitation
-		$this->id = (int) $id;
+		$this->id = filterId($id);
 		$this->date = DateTime::createFromFormat('Y-m-d', $date);
 		$this->name = $name;
 		$this->ageclasses = $ageclasses ? self::akListString2jgArray($ageclasses) : null;
@@ -29,6 +35,32 @@ class Shiai
 		$this->promoImgUrl = $promoImgUrl;
 	}
 
+	public static function fromArray(array $shiai){
+		$id = $shiai['id'] ?? null;
+		$date = $shiai['date'] ?? null;
+		$name = $shiai['name'] ?? null;
+		$ageclasses = $shiai['ageclasses'] ?? null;
+		$place = $shiai['place'] ?? null;
+		$announcementUrl = $shiai['announcementUrl'] ?? null;
+		$routeUrl = $shiai['routeUrl'] ?? null;
+		// gallery stuff removed for now
+
+		return new Shiai($id, $date, $name, $ageclasses, $place, $announcementUrl, $routeUrl);
+	}
+
+	public function asArray(){
+		return [
+			'id'=>$this->id,
+			'date'=>$this->date->format('Y-m-d'),
+			'name'=>$this->name,
+			// @todo at least in theory this should again hold age categories
+			'ageclasses'=>implode(" ", $this->ageclasses),
+			'place'=>$this->place,
+			'announcementUrl'=>$this->announcementUrl,
+			'routeUrl'=>$this->announcementUrl
+		];
+	}
+
 	public function getId()
 	{
 		return $this->id;
@@ -83,6 +115,17 @@ class Shiai
 		return self::fromDbArray($response[0]);
 	}
 
+	/** select shiai from the database
+	 * 
+	 * - by default, only coming events will be returned
+	*/
+	public static function dbSelect(){
+		$query = "SELECT `".self::$tableName."`.* FROM `".self::$tableName."` WHERE `Datum` >= CURDATE();";
+		$response = dbConnector::query($query);
+
+		return $response;
+	}
+
 	public static function fromDbArray($member)
 	{
 		return new shiai(
diff --git a/homepage/participo/lib/participoLib/user.php b/homepage/participo/lib/participoLib/user.php
index e736c40..a5476f0 100644
--- a/homepage/participo/lib/participoLib/user.php
+++ b/homepage/participo/lib/participoLib/user.php
@@ -75,6 +75,26 @@ class User
 		return dbConnector::getLastInsertId();
 	}
 
+	public static function dbSelectWithAttribute(int $attributeId)
+	{
+		$query =
+			"SELECT DISTINCT" .
+			"  `wkParticipo_Users`.* " .
+			" FROM `wkParticipo_Users`" .
+			" JOIN `wkParticipo_user<=>userAttributes`" .
+			"   ON `wkParticipo_user<=>userAttributes`.`userId` = `wkParticipo_Users`.`id`" .
+			" WHERE `wkParticipo_user<=>userAttributes`.`attributeId` = :attributeId". 
+			" ORDER BY `wkParticipo_Users`.`id` ASC;";
+		
+		$params = [
+			':attributeId' => ['value' => $attributeId, 'data_type' => PDO::PARAM_INT]
+		];
+
+		$response = dbConnector::query($query, $params);
+
+		return $response;
+	}
+
 	/** Name of the table with all the Users
 	 *
 	 * @var string
@@ -139,13 +159,13 @@ class User
 	/** List of users kids */
 	private $kids = null;
 
-	public function kidIds(bool $forceLoading = false)
-	{
-		if (is_null($this->kidIds) || $forceLoading) {
-			$this->kidIds = self::getKidIds($id);
-		}
-		return self::$kidIds;
-	}
+	// public function kidIds(bool $forceLoading = false)
+	// {
+	// 	if (is_null($this->kidIds) || $forceLoading) {
+	// 		$this->kidIds = self::getKidIds($id);
+	// 	}
+	// 	return self::$kidIds;
+	// }
 
 	public function kids(bool $forceLoading = false)
 	{
@@ -155,26 +175,26 @@ class User
 		return $this->kids;
 	}
 
-	private static function getKidIds(int $id)
-	{
-		$response = dbConnector::query(
-			'SELECT * FROM `wkParticipo_Users` WHERE `' . $name . '` = :' . $name,
-			[$name => ['value' => $value, 'data_type' => self::$dbColumns[$name]]]
-		);
+// 	private static function getKidIds(int $id)
+// 	{
+// 		$response = dbConnector::query(
+// 			'SELECT * FROM `wkParticipo_Users` WHERE `' . $name . '` = :' . $name,
+// 			[$name => ['value' => $value, 'data_type' => self::$dbColumns[$name]]]
+// 		);
 
-		$query = <<<SQL
-SELECT *
-FROM `wkParticipo_Users`
-JOIN `vormundschaft`
-ON `wkParticipo_Users`.`id` = `vormundschaft`.`kidId`
-WHERE `vormundschaft`.`userId` = :userId;
-SQL;
-		$params = [
-			':userId' => ['value' => $userId, 'data_type' => PDO::PARAM_INT]
-		];
-		$response = dbConnector::query($query, $params);
-		return $response;
-	}
+// 		$query = <<<SQL
+// SELECT *
+// FROM `wkParticipo_Users`
+// JOIN `vormundschaft`
+// ON `wkParticipo_Users`.`id` = `vormundschaft`.`kidId`
+// WHERE `vormundschaft`.`userId` = :userId;
+// SQL;
+// 		$params = [
+// 			':userId' => ['value' => $userId, 'data_type' => PDO::PARAM_INT]
+// 		];
+// 		$response = dbConnector::query($query, $params);
+// 		return $response;
+// 	}
 
 	/** Export the User data into an associative array
 	 *
@@ -221,14 +241,21 @@ SQL;
 		return $this->name;
 	}
 
-	public function getFirstname()
+	public function getFirstName()
 	{
 		return $this->firstName;
 	}
 
 	public function getConfig()
 	{
-		return $this->$config;
+		return $this->config;
+	}
+
+	public function getDateOfBirth(){
+		return $this->dateOfBirth;
+	}
+	public function getStrBirthday(){
+		return $this->dateOfBirth->format("Y-m-d");
 	}
 
 	// static functions
@@ -305,4 +332,34 @@ SQL;
 		}
 		return User::fromDbArray($response[0]);
 	}
+
+	public static function loadFromDbByAttribute(int $attributeId){
+		$query =
+			"SELECT DISTINCT" .
+			"  `wkParticipo_Users`.* " .
+			" FROM `wkParticipo_Users`" .
+			" JOIN `wkParticipo_user<=>userAttributes`" .
+			"   ON `wkParticipo_user<=>userAttributes`.`userId` = `wkParticipo_Users`.`id`" .
+			" WHERE `wkParticipo_user<=>userAttributes`.`attributeId` = :attributeId". 
+			" ORDER BY `wkParticipo_Users`.`id` ASC;";
+
+		$response = dbConnector::query(
+			$query
+			, [
+				'attributeId'=>[
+					'value'=>filterId($attributeId)
+					, 'data_type'=>PDO::PARAM_INT]
+				]
+			);
+
+		// Postprocessing
+		// - convert the comma separated list into an array
+		foreach ($response as &$user) {
+			$user["eMail"] = explode(",", $user["eMail"]);
+			foreach ($user["eMail"] as &$email) {
+				$email = trim($email);
+			}
+		}
+		return $response;
+	}
 }
diff --git a/homepage/participo/package-lock.json b/homepage/participo/package-lock.json
new file mode 100644
index 0000000..c92a28a
--- /dev/null
+++ b/homepage/participo/package-lock.json
@@ -0,0 +1,103 @@
+{
+  "name": "participo",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "@prettier/plugin-php": "^0.22.1",
+        "prettier": "^3.1.1"
+      }
+    },
+    "node_modules/@prettier/plugin-php": {
+      "version": "0.22.1",
+      "resolved": "https://registry.npmjs.org/@prettier/plugin-php/-/plugin-php-0.22.1.tgz",
+      "integrity": "sha512-TN7tzC2/jCM1/H/mlUjqPos8lIV+vm8Qwp83KofuZclGlG9PoUWHU7m0yqskjAoCy+R4ZCV0hxdBLPBkU69S2Q==",
+      "dev": true,
+      "dependencies": {
+        "linguist-languages": "^7.27.0",
+        "mem": "^9.0.2",
+        "php-parser": "^3.1.5"
+      },
+      "peerDependencies": {
+        "prettier": "^3.0.0"
+      }
+    },
+    "node_modules/linguist-languages": {
+      "version": "7.27.0",
+      "resolved": "https://registry.npmjs.org/linguist-languages/-/linguist-languages-7.27.0.tgz",
+      "integrity": "sha512-Wzx/22c5Jsv2ag+uKy+ITanGA5hzvBZngrNGDXLTC7ZjGM6FLCYGgomauTkxNJeP9of353OM0pWqngYA180xgw==",
+      "dev": true
+    },
+    "node_modules/map-age-cleaner": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz",
+      "integrity": "sha512-bJzx6nMoP6PDLPBFmg7+xRKeFZvFboMrGlxmNj9ClvX53KrmvM5bXFXEWjbz4cz1AFn+jWJ9z/DJSz7hrs0w3w==",
+      "dev": true,
+      "dependencies": {
+        "p-defer": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/mem": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/mem/-/mem-9.0.2.tgz",
+      "integrity": "sha512-F2t4YIv9XQUBHt6AOJ0y7lSmP1+cY7Fm1DRh9GClTGzKST7UWLMx6ly9WZdLH/G/ppM5RL4MlQfRT71ri9t19A==",
+      "dev": true,
+      "dependencies": {
+        "map-age-cleaner": "^0.1.3",
+        "mimic-fn": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=12.20"
+      },
+      "funding": {
+        "url": "https://github.com/sindresorhus/mem?sponsor=1"
+      }
+    },
+    "node_modules/mimic-fn": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-4.0.0.tgz",
+      "integrity": "sha512-vqiC06CuhBTUdZH+RYl8sFrL096vA45Ok5ISO6sE/Mr1jRbGH4Csnhi8f3wKVl7x8mO4Au7Ir9D3Oyv1VYMFJw==",
+      "dev": true,
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/p-defer": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/p-defer/-/p-defer-1.0.0.tgz",
+      "integrity": "sha512-wB3wfAxZpk2AzOfUMJNL+d36xothRSyj8EXOa4f6GMqYDN9BJaaSISbsk+wS9abmnebVw95C2Kb5t85UmpCxuw==",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/php-parser": {
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/php-parser/-/php-parser-3.1.5.tgz",
+      "integrity": "sha512-jEY2DcbgCm5aclzBdfW86GM6VEIWcSlhTBSHN1qhJguVePlYe28GhwS0yoeLYXpM2K8y6wzLwrbq814n2PHSoQ==",
+      "dev": true
+    },
+    "node_modules/prettier": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.1.1.tgz",
+      "integrity": "sha512-22UbSzg8luF4UuZtzgiUOfcGM8s4tjBv6dJRT7j275NXsy2jb4aJa4NNveul5x4eqlF1wuhuR2RElK71RvmVaw==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    }
+  }
+}
diff --git a/homepage/participo/package.json b/homepage/participo/package.json
new file mode 100644
index 0000000..06ec2e3
--- /dev/null
+++ b/homepage/participo/package.json
@@ -0,0 +1,10 @@
+{
+  "devDependencies": {
+    "@prettier/plugin-php": "^0.22.1",
+    "prettier": "^3.1.1"
+  },
+  "prettier":{
+    "parser": "php",
+    "plugins": ["@prettier/plugin-php"]
+  }
+}
diff --git a/homepage/participo/pmelo.inc.php b/homepage/participo/pmelo.inc.php
new file mode 100644
index 0000000..5cfaeb6
--- /dev/null
+++ b/homepage/participo/pmelo.inc.php
@@ -0,0 +1,179 @@
+<?php 
+setlocale(LC_ALL, "de_DE@euro", "de_DE", "de", "ge");
+set_include_path(get_include_path() . PATH_SEPARATOR . "./lib/");
+
+// Configs
+require_once("config/participo.php");
+require_once $config['basePath'] . "/config/cwsvJudo.config.php";
+
+// Libs
+require_once("participoLib/user.php");
+
+participo::init($cwsvJudoConfig);
+
+$pmelo = new PmElo();
+
+class PmElo{
+    function __construct()
+    {
+        // $this->var_log($_SESSION, "session");
+        // starting/continuing a session
+        session_start();
+
+        // create 'pmelo' section in the sessions data
+        if(!array_key_exists('pmelo', $_SESSION)){
+            $_SESSION['pmelo'] = [];
+        }        
+        // - data storage for id-s of chosen fighters
+        if(!array_key_exists('fighterIds', $_SESSION['pmelo'])){
+            $_SESSION['pmelo']['fighterIds'] = []; 
+        }
+
+        // check for action in post data
+        if(array_key_exists('pmelo', $_POST)){
+            if(array_key_exists('fighterIds', $_POST['pmelo'])){
+                $_SESSION['pmelo']['fighterIds']=$_POST['pmelo']['fighterIds'];
+            }
+            // $this->var_log($_SESSION, "session");
+        }
+
+        // load/recreate ranking data
+        if(!is_file(self::$pmeloJson)){
+            $this->log['info'][] = "Couldn't find `".self::$pmeloJson."`. Create a new one!";
+            file_put_contents(self::$pmeloJson, json_encode([]));
+        }
+
+        // init members
+        $this->trainees = self::getTrainees();
+        $this->var_log(array_map(function($user){return $user->getFirstName();},$this->trainees), "trainees from db");
+        $this->rankings = $this->createRankings();
+        $this->var_log(array_map(function($id){return $this->trainees[$id]->getFirstName();},$this->rankings), "current ranking");
+        $this->fighters = [];
+        foreach($_SESSION['pmelo']['fighterIds'] as $id){
+            $this->fighters[$id] = $this->trainees[$id];
+        };
+        $this->var_log(array_map(function($user){return $user->getFirstName();},$this->fighters), "fighters");
+        
+
+        // save the updated ranking
+        // @todo should be in destructor
+        self::saveRankings($this->rankings);
+    }
+
+    function __destruct(){
+        // sad, the destructor is not allowed to use file_put_contents
+    }
+    
+    // load all active trainees into a id=>User assoc array
+    public static function getTrainees(){
+        $traineeList = array_map('User::fromDbArray', User::dbSelectWithAttribute(4));
+        $traineeAssocArray = [];
+        foreach($traineeList as $trainee){
+            $traineeAssocArray[$trainee->getId()] = $trainee;
+        }
+        return $traineeAssocArray;
+    }
+
+    // load ranking from json file
+    public static function loadRankings(){
+        return json_decode(file_get_contents(self::$pmeloJson));
+    }
+    
+    // save a ranking to json file
+    public static function saveRankings(array $rankings){
+        file_put_contents(self::$pmeloJson, json_encode($rankings));
+    }
+
+    // simple logger to a logging buffer
+    function var_log($variable, string $prefix=null, string $logChannel='info'){
+        if(!in_array($logChannel, ['info', 'warning', 'error'])){
+            $logChannel='info';
+        }
+        $prefix = (!empty($prefix) ? $prefix.": " : "");
+        $this->log[$logChannel][]=$prefix.var_export($variable, true);
+    }
+
+    // create the ranking for the current session (load saved ranking from file, remove old trainees, add new trainees)
+    public function createRankings(){
+        // load the last state of the ranking
+        $loadedRanking = self::loadRankings();
+        $this->var_log(array_map(function($id){$user=$this->trainees[$id]; return $user->getFirstName();}, $loadedRanking), "loaded ranking");
+
+        // check if the ranked trainees still are in training
+        // - the ranking with
+        $cleanRanking = [];
+        // - trainees that aren't currently in the ranking for later inserting
+        $toBeInsertedTrainees = $this->trainees;
+        foreach($loadedRanking as $id){
+            if(array_key_exists($id, $this->trainees)){
+                // userId is still in training, so append it to the cleaned up ranking
+                $cleanRanking[] = $id;
+                // trainees already in the ranking we won't have to insert manual
+                unset($toBeInsertedTrainees[$id]);
+            }
+        }
+        
+        // get the ids of the to be inserted trainees sorted by the birthday
+        $newTraineesIds = array_map(function($u){return $u->getId();},$toBeInsertedTrainees);
+        usort(
+            $newTraineesIds
+            , function($lhs, $rhs){
+                return $this->trainees[$lhs]->getStrBirthday() < $this->trainees[$rhs]->getStrBirthday() ? -1 : ($this->trainees[$lhs]->getStrBirthday() > $this->trainees[$rhs]->getStrBirthday() ? 1 : 0);
+            }
+        );
+        // $this->var_log(
+        //     array_map(
+        //         function($id){return $this->trainees[$id]->getStrBirthday()." ".$this->trainees[$id]->getFirstName();}
+        //         , $newTraineesIds
+        //     )
+        //     , "newTraineesBy B-Day"
+        // );
+
+        // now we do a mergesort (step) 
+        $updatedRanking = [];
+        $idxNewTrainees = count($newTraineesIds)-1;
+        $idxRanking = count($cleanRanking)-1;
+        // - while we can merge, we merge
+        while( ($idxRanking >= 0) && ($idxNewTrainees >= 0) ){
+            // $this->var_log( [$idxRanking.", ".$idxNewTrainees=>$updatedRanking] );
+            // $this->var_log(
+            //     [$this->trainees[$cleanRanking[$idxRanking]]->getStrBirthday(), $this->trainees[$newTraineesIds[$idxRanking]]->getStrBirthday()]
+            // );
+            if( 
+                $this->trainees[$cleanRanking[$idxRanking]]->getDateOfBirth()
+                > $this->trainees[$newTraineesIds[$idxNewTrainees]]->getDateOfBirth()
+            ){
+                // $this->var_log( $this->trainees[$cleanRanking[$idxRanking]]->getFirstName(), "merge ranking insert" );
+                array_unshift($updatedRanking, $cleanRanking[$idxRanking]);
+                $idxRanking-=1;
+            }else{
+                // $this->var_log( $this->trainees[$newTraineesIds[$idxNewTrainees]]->getFirstName(), "merge trainees insert" );
+                array_unshift($updatedRanking, $newTraineesIds[$idxNewTrainees]);
+                $idxNewTrainees-=1;
+            }
+        }
+        // $this->var_log(
+        //     ["idxR ".$idxRanking." idxNT ".$idxNewTrainees=>[$cleanRanking, $newTraineesIds]]
+        //     , "after merge"
+        // );
+        while( $idxRanking >= 0 ){
+            // $this->var_log( $this->trainees[$cleanRanking[$idxRanking]]->getFirstName(), "rest ranking insert" );
+            array_unshift($updatedRanking, $cleanRanking[$idxRanking]);
+            $idxRanking-=1;
+        }
+        while( $idxNewTrainees >= 0 ){
+            // $this->var_log( $this->trainees[$newTraineesIds[$idxNewTrainees]]->getFirstName(), "rest newTrainees insert" );
+            array_unshift($updatedRanking, $newTraineesIds[$idxNewTrainees]);
+            $idxNewTrainees-=1;
+        }
+        return $updatedRanking;
+    }
+
+    public $log = ['error'=>[], 'warning'=>[], 'info'=>[]];
+    public $fighters = null;
+    public $trainees = null;
+    // list of id-s in the order of the current ranking
+    public $rankings = null;
+
+    static $pmeloJson="./pmeloRanking.json";
+}
\ No newline at end of file
diff --git a/homepage/participo/pmelo.php b/homepage/participo/pmelo.php
new file mode 100644
index 0000000..da60dfb
--- /dev/null
+++ b/homepage/participo/pmelo.php
@@ -0,0 +1,105 @@
+<?php require_once("pmelo.inc.php");?>
+<!DOCTYPE html>
+<html>
+	<head>
+		<meta charset="utf-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+
+		<!-- shared imports (common css, MaterializeCss) -->
+		<?php readfile('shared/imports.php'); ?>
+
+		<!-- inits for the materializeCss -->
+		<script src="index.js"></script>
+
+		<title>participo</title>
+		<meta name="description" content="pmelo">
+
+		<link rel="icon"             href="<?echo($config['ressourceUrl']);?>/graphiken/icons/cwsv.ico" />
+		<link rel="apple-touch-icon" href="<?echo($config['baseUrl']);?>/apple-touch-icon.png">
+	</head>
+
+	<body>
+		<header>
+			<nav class="indigo darken-4">
+				<h1 style="display:inline;">cwsvJudo Apps</h1>
+				<a class="right top-nav sidenav-trigger waves-effect waves-light hide-on-large-only" href="#" data-target="nav-mobile">
+					<i class="material-icons">menu</i>
+				</a>
+			</nav>
+			<ul class="sidenav sidenav-fixed sidenav-close" id="nav-mobile">
+				<li class="logo">
+					<a style="height:auto;" class="brand-logo" id="logo-container" href="/participo/">
+						<img alt="cwsvJudoApps" style="max-width:100%;height:12vh;" class="responsive-img" src="http://cwsvjudo.bplaced.net/ressourcen/graphiken/logos/cwsvJudoLogoWappen.x256.png" />
+					</a>
+				</li>
+				<?php require_once 'sidenav/loginStatus.php'; ?><!-- brings its own li -->
+			</ul>
+		</header>
+
+		<main>
+			<h2><a href="pmelo">pmElo</a></h2>
+
+			<form id="pmelo-form-fighters" action="pmelo.php" method="post">
+				<div class="input-field col s12">
+					<select name ="pmelo[fighterIds][]" id="pmelo-form-fighters-select" multiple>
+						<option value="" disabled selected>Kämpfer auswählen</option>
+						<?php
+						foreach($pmelo->trainees as $trainee){
+							echo("<option value=\"".$trainee->getId()."\">".$trainee->getFirstname()." ".$trainee->getName()."</option>".PHP_EOL);
+						}
+						?>
+					</select>
+					<label for="form-select-2">Kämpfer auswählen</label>
+					<input type="submit" value="Liste erstellen">
+				</div>
+			</form>
+
+			<table>
+				<thead>
+					<tr><th>Platz</th><th>Name</th><th>Aufstieg</th></tr>
+				</thead>
+				<tbody>
+					<?php
+if(!empty($pmelo->fighters)){
+	foreach($pmelo->rankings as $rank=>$id){
+		if(array_key_exists($id, $pmelo->fighters)){
+			$fighter = $pmelo->fighters[$id];
+			// echo("<tr><td>".$rank."</td><td>".$fighter->getFirstName()."</td></tr>".PHP_EOL);
+			echo("<tr><td>".$rank."</td><td>".$fighter->getFirstName()." ".$fighter->getName()."</td><td>^</td></tr>".PHP_EOL);
+		}
+	}
+}
+					?>
+				</tbody>
+			</table>
+			
+			<ul class="collection with-header">
+				<li class="collection-header"><h3>Logs</h3></li>
+<?php
+	foreach($pmelo->log as $logLevel=>$messages){
+		if(!empty($messages)){
+?>
+				<li class="collection-item">
+					<ul class="collection with-header">
+						<li class="collection-header"><?php echo($logLevel);?></li>
+<?php
+			foreach($messages as $message){
+?>
+						<li>
+							<?php echo($message); ?>
+						</li>
+<?php
+			}
+?>
+					</ul>
+				</li>
+<?php
+		}
+?>
+<?php
+	}
+?>
+			</ul>
+		</main>
+	</body>
+</html>
diff --git a/homepage/participo/testApi.py b/homepage/participo/testApi.py
new file mode 100755
index 0000000..a43325c
--- /dev/null
+++ b/homepage/participo/testApi.py
@@ -0,0 +1,132 @@
+#! /usr/bin/env python
+
+import logging
+import json
+
+
+class TestApi:
+    @staticmethod
+    def __parse_arguments():
+        import argparse
+
+        argParser = argparse.ArgumentParser(
+            "testApi"
+        )
+        argParser.add_argument(
+            "method",
+            choices=['GET', 'POST']
+        )
+        argParser.add_argument(
+            "--endpoint",
+            default="shiai"
+        )
+        argParser.add_argument(
+            "--host",
+            default="cwsvjudo.bplaced.net"
+        )
+        argParser.add_argument(
+            "--path",
+            default="participo/api"
+        )
+        argParser.add_argument(
+            "--key",
+            default=None
+        )
+        argParser.add_argument(
+            "--configFile",
+            type=argparse.FileType('r'),
+            default="testApi.config.yaml"
+        )
+        _LOG_LEVEL = ["CRITICAL", "ERROR", "WARNING", "INFO", "DEBUG"]
+        argParser.add_argument(
+            "--logLevel",
+            choices=_LOG_LEVEL,
+            default="WARNING"
+        )
+        argParser.add_argument(
+            "--input", "-i",
+            type=argparse.FileType("r"),
+            default="-"
+        )
+
+        return argParser.parse_args()
+
+    def __init__(self):
+        self.config = self.__parse_arguments()
+        self.config.logLevel = getattr(logging, self.config.logLevel)
+        logging.basicConfig(level=self.config.logLevel)
+
+        with self.config.configFile as cf:
+            from yaml import safe_load
+            configData = safe_load(cf)
+
+        # @todo: add the attributes from the config file to the config (if not
+        # already set)
+        if not self.config.key and 'apiKey' in configData:
+            self.config.key = configData['apiKey']
+
+    def apiCall(self):
+        return apiCall.call(
+            method=self.config.method,
+            host=self.config.host,
+            url="/".join([self.config.path, self.config.endpoint]),
+            headers={
+                "Authorization": f"Basic {self.config.key}"
+            },
+            input=load_json(self.config.input)
+        )
+
+
+def load_json(jsonFile):
+    import json
+    with jsonFile as f:
+        return json.load(f)
+
+class apiCall:
+    @staticmethod
+    def call(
+        method: str,
+        host: str,
+        url: str,
+        headers: dict = None,
+        input: dict = None,
+    ) -> dict:
+        import requests
+
+        if(method=="GET"):
+            r = requests.get(
+                url=f"http://{host}/{url}",
+                timeout=10,
+                headers=headers
+            )
+        elif(method=="POST"):
+            r = requests.post(
+                json=input,
+                url=f"http://{host}/{url}",
+                timeout=10,
+                headers=headers
+            )
+        else:
+            logging.error("This line should never been reached!")
+
+        try:
+            return r.json()
+        except Exception as e:
+            logging.error(f"Exception {repr(e)} ({e}) while parsing json:")
+            logging.error(r.text)
+
+
+if __name__ == "__main__":
+    testApi = TestApi()
+
+    response = testApi.apiCall()
+
+    try:
+        print(
+            json.dumps(
+                response,
+                indent=2
+            )
+        )
+    except Exception as e:
+        logging.error(f"Exception {repr(e)} ({e}) while parsing json:")
diff --git a/homepage/participo/wk.api.php b/homepage/participo/wk.api.php
index a512f4e..bee2c7b 100644
--- a/homepage/participo/wk.api.php
+++ b/homepage/participo/wk.api.php
@@ -13,7 +13,6 @@ $db = dbConnector::connect(
 	$cwsvJudoConfig['db']['user'],
 	$cwsvJudoConfig['db']['password']
 );
-echo($db);
 
 $wkSqlQuery = 'SELECT * FROM `wettkampfkalender` WHERE `Datum` >= CURDATE();';
 $wkSqlResponse = dbConnector::query($wkSqlQuery);
@@ -22,3 +21,4 @@ header('Access-Control-Allow-Headers: *');
 header('Access-Control-Allow-Origin: *');
 
 echo(json_encode($wkSqlResponse));
+?>
\ No newline at end of file
diff --git a/infoZettelOrg/Makefile b/infoZettelOrg/Makefile
index 096d549..7f53d09 100644
--- a/infoZettelOrg/Makefile
+++ b/infoZettelOrg/Makefile
@@ -2,6 +2,7 @@ include Makefile.private
 
 infoZettel=$(patsubst %.md,%.pdf,$(wildcard *.md))
 infoZettel-2x2=$(patsubst %.md,%-2x2.pdf,$(wildcard *.md))
+infoZettel-booklet=$(patsubst %.md,%-booklet.pdf,$(wildcard *.md))
 wkZettel=$(patsubst %.md,%.pdf,$(wildcard wkZettel/*.md))
 wkZettel-2x2=$(patsubst %.md,%-2x2.pdf,$(wildcard wkZettel/*.md))
 kyuZettel=$(patsubst %.md,%.pdf,$(wildcard kyuZettel/*.md))
@@ -37,7 +38,7 @@ aushaenge: $(aushaenge)
 		--variable classoption="twoside=true" \
 		--variable classoption="DIV=28" \
 		--variable classoption="BCOR=0mm" \
-		--variable classoption="paper=A6" \
+		--variable classoption="paper=A5" \
 		--variable classoption="fontsize=10pt" \
 		--variable classoption="parskip=never" \
 		--variable classoption="headsepline=true" \
@@ -48,7 +49,10 @@ aushaenge: $(aushaenge)
 	$^
 
 %-2x2.pdf: %.pdf
-	pdfjam --no-landscape --nup 2x2 --suffix '2x2' $^ '1,1,1,1,2,2,2,2' --outfile $@
+	pdfjam --no-landscape --nup 2x1 --suffix '2x2' $^ '2,3,1,4,2,2,2,2' --outfile $@
+
+%-booklet.pdf: %.pdf
+	pdfjam --landscape --nup 2x1 --suffix 'booklet' $^ '2,3,1,4' --outfile $@
 
 aushang/%.pdf: aushang/%.md
 	pandoc \
diff --git a/submodules/Makefile b/submodules/Makefile
index 1dff116..f17068a 100644
--- a/submodules/Makefile
+++ b/submodules/Makefile
@@ -4,7 +4,7 @@ include passwords
 .PHONY: updateSubmodules
 updateSubmodules: checkoutSubmodulesDefaultBranches
 	git submodule foreach git pull
-
+		
 .PHONY:
 checkoutSubmodulesDefaultBranches:
 	git -C lite-youtube-embed checkout master
@@ -13,12 +13,11 @@ checkoutSubmodulesDefaultBranches:
 	git -C spyc checkout master
 	git -C zopfli checkout master
 
-
 .PHONY: buildMaterialize
 buildMaterialize: updateSubmodules
 	./buildMaterialize.sh
 
 .PHONY: deployMaterialize
-# deployMaterialize: buildMaterialize
-deployMaterialize: $(materialiceCssDist)
-	cd materialize/dist/ && find . -type f -exec curl --verbose -u cwsvjudo:$(ftpPassword) --ftp-create-dirs -T {} ftp://cwsvjudo.bplaced.net/www/ressourcen/materializeCss/{} \;
\ No newline at end of file
+deployMaterialize: buildMaterialize
+	# @todo correctly check the cert
+	lftp -e "set ftp:ssl-allow no; mirror -R 'materialize/dist' 'www/ressourcen/materializeCss'; bye;" -u cwsvjudo,$(ftpPassword) cwsvjudo.bplaced.net
diff --git a/submodules/lite-youtube-embed b/submodules/lite-youtube-embed
index be6f03e..f9fc3a2 160000
--- a/submodules/lite-youtube-embed
+++ b/submodules/lite-youtube-embed
@@ -1 +1 @@
-Subproject commit be6f03ef53b33866e38a917a256cefca95262804
+Subproject commit f9fc3a2475ade166d0cf7bb3e3caa3ec236ee74e
diff --git a/submodules/materialize b/submodules/materialize
index bf29da7..68e5224 160000
--- a/submodules/materialize
+++ b/submodules/materialize
@@ -1 +1 @@
-Subproject commit bf29da7b2a234ec3d3428b7585d5ac7f724541f2
+Subproject commit 68e5224811ba6b568316de60da5af66d9a569a48
diff --git a/submodules/parsedown b/submodules/parsedown
index 6598f38..77947ed 160000
--- a/submodules/parsedown
+++ b/submodules/parsedown
@@ -1 +1 @@
-Subproject commit 6598f3860c2698fe2f0f1bc98212fc01d0a1893c
+Subproject commit 77947eda2fdaf06b181c63a7db13e38968306aee
diff --git a/tShirts/tShirts.2023/groessen.gnumeric b/tShirts/tShirts.2023/groessen.gnumeric
index d5f2570..ee1da88 100644
Binary files a/tShirts/tShirts.2023/groessen.gnumeric and b/tShirts/tShirts.2023/groessen.gnumeric differ