diff --git a/wp-multi-toolkit.php b/wp-multi-toolkit.php
new file mode 100644
index 0000000..164170a
--- /dev/null
+++ b/wp-multi-toolkit.php
@@ -0,0 +1,410 @@
+<?php
+/*
+Plugin Name: WP Multi Toolkit
+Plugin URI: https://git.viper.ipv64.net/M_Viper/wp-multi-toolkit
+Description: Ein umfassendes Toolkit inklusive WP Multi Funktionen und Update-Management für zugehörige Plugins.
+Version: 1.0.0
+Author: M_Viper
+Author URI: https://git.viper.ipv64.net/M_Viper
+License: GPL2
+Text Domain: wp-multi-toolkit
+Domain Path: /languages
+*/
+
+defined('ABSPATH') or die('No direct access allowed.');
+
+define('WPMT_PLUGIN_DIR', plugin_dir_path(__FILE__));
+
+// Textdomain laden
+function wpmt_load_textdomain() {
+    load_plugin_textdomain('wp-multi-toolkit', false, dirname(plugin_basename(__FILE__)) . '/languages');
+}
+add_action('plugins_loaded', 'wpmt_load_textdomain');
+
+// ### WP Multi Grundfunktionen ###
+
+// Optionen-Seite für WP Multi
+function wpmt_register_settings() {
+    register_setting('wpmt_options_group', 'wpmt_multi_settings', array(
+        'sanitize_callback' => 'wpmt_sanitize_settings'
+    ));
+    add_settings_section('wpmt_main_section', __('WP Multi Einstellungen', 'wp-multi-toolkit'), null, 'wpmt_settings');
+    add_settings_field('wpmt_enable_multi', __('Multi-Funktion aktivieren', 'wp-multi-toolkit'), 'wpmt_enable_multi_callback', 'wpmt_settings', 'wpmt_main_section');
+}
+add_action('admin_init', 'wpmt_register_settings');
+
+function wpmt_sanitize_settings($input) {
+    $new_input = array();
+    $new_input['enable_multi'] = isset($input['enable_multi']) ? 1 : 0;
+    return $new_input;
+}
+
+function wpmt_enable_multi_callback() {
+    $options = get_option('wpmt_multi_settings', array('enable_multi' => 0));
+    echo '<input type="checkbox" name="wpmt_multi_settings[enable_multi]" value="1" ' . checked(1, $options['enable_multi'], false) . ' />';
+}
+
+function wpmt_add_admin_menu() {
+    add_options_page(
+        __('WP Multi Toolkit Einstellungen', 'wp-multi-toolkit'),
+        __('WP Multi Toolkit', 'wp-multi-toolkit'),
+        'manage_options',
+        'wpmt_settings',
+        'wpmt_settings_page'
+    );
+}
+add_action('admin_menu', 'wpmt_add_admin_menu');
+
+function wpmt_settings_page() {
+    ?>
+    <div class="wrap">
+        <h1><?php echo esc_html__('WP Multi Toolkit Einstellungen', 'wp-multi-toolkit'); ?></h1>
+        <form method="post" action="options.php">
+            <?php
+            settings_fields('wpmt_options_group');
+            do_settings_sections('wpmt_settings');
+            submit_button();
+            ?>
+        </form>
+    </div>
+    <?php
+}
+
+// Shortcode für Multi-Funktionalität
+function wpmt_multi_shortcode($atts) {
+    $options = get_option('wpmt_multi_settings', array('enable_multi' => 0));
+    if ($options['enable_multi']) {
+        return '<p>' . __('Multi-Funktion ist aktiviert!', 'wp-multi-toolkit') . '</p>';
+    }
+    return '<p>' . __('Multi-Funktion ist deaktiviert.', 'wp-multi-toolkit') . '</p>';
+}
+add_shortcode('wpmt_multi', 'wpmt_multi_shortcode');
+
+// ### Update-Management ###
+
+// Widget zum Admin-Dashboard hinzufügen
+function wpmt_update_dashboard_widget() {
+    wp_add_dashboard_widget(
+        'wpmt_update_widget',
+        __('Verfügbare Updates für WP Multi Toolkit', 'wp-multi-toolkit'),
+        'wpmt_update_dashboard_widget_content',
+        null,
+        null,
+        'normal',
+        'high'
+    );
+}
+
+// Dashboard-Setup anpassen
+function wpmt_force_widget_position() {
+    global $wp_meta_boxes;
+
+    if (isset($wp_meta_boxes['dashboard']['normal']['high']['wpmt_update_widget'])) {
+        $widget = $wp_meta_boxes['dashboard']['normal']['high']['wpmt_update_widget'];
+        unset($wp_meta_boxes['dashboard']['normal']['high']['wpmt_update_widget']);
+        $wp_meta_boxes['dashboard']['normal']['high'] = array('wpmt_update_widget' => $widget) + $wp_meta_boxes['dashboard']['normal']['high'];
+    }
+}
+add_action('wp_dashboard_setup', 'wpmt_update_dashboard_widget', 1);
+add_action('wp_dashboard_setup', 'wpmt_force_widget_position', 999);
+
+// Widget nicht ausblendbar machen
+function wpmt_prevent_widget_hiding($widgets) {
+    $widgets['wpmt_update_widget'] = array(
+        'id' => 'wpmt_update_widget',
+        'title' => __('Verfügbare Updates für WP Multi Toolkit', 'wp-multi-toolkit'),
+        'callback' => 'wpmt_update_dashboard_widget_content'
+    );
+    return $widgets;
+}
+add_filter('dashboard_available_widgets', 'wpmt_prevent_widget_hiding');
+
+// Benutzerdefiniertes Cron-Intervall hinzufügen
+add_filter('cron_schedules', function ($schedules) {
+    $schedules['hourly'] = array(
+        'interval' => 3600,
+        'display'  => __('Stündlich', 'wp-multi-toolkit'),
+    );
+    return $schedules;
+});
+
+// Cron-Job registrieren
+function wpmt_update_schedule_check() {
+    if (!wp_next_scheduled('wpmt_update_check_event')) {
+        wp_schedule_event(time(), 'hourly', 'wpmt_update_check_event');
+    }
+}
+add_action('wp', 'wpmt_update_schedule_check');
+
+// Hilfsfunktion zur Wiederverwendung der Gitea-API-Abfrage
+function wpmt_fetch_latest_release($repo, $show_prereleases = false) {
+    $api_url = "https://git.viper.ipv64.net/api/v1/repos/M_Viper/{$repo}/releases";
+    $response = wp_remote_get($api_url, array('timeout' => 10));
+
+    if (is_wp_error($response)) {
+        error_log("WP Multi Toolkit Update Fehler für {$repo}: " . $response->get_error_message());
+        return false;
+    }
+
+    $body = wp_remote_retrieve_body($response);
+    $data = json_decode($body, true);
+
+    if (!is_array($data)) {
+        error_log("WP Multi Toolkit Update für {$repo}: Ungültige API-Antwort");
+        return false;
+    }
+
+    foreach ($data as $release) {
+        if (!$show_prereleases && isset($release['prerelease']) && $release['prerelease']) {
+            continue;
+        }
+        if (!empty($release['tag_name'])) {
+            return $release;
+        }
+    }
+    return null;
+}
+
+// Cron-Job für Update-Überprüfung
+function wpmt_update_check() {
+    require_once ABSPATH . 'wp-admin/includes/plugin.php';
+    
+    $show_prereleases = get_option('wpmt_update_show_prereleases', false);
+    $installed_plugins = get_plugins();
+    $plugins_to_check = array(
+        'wp-multi-toolkit' => 'WP-Multi-Toolkit/wp-multi-toolkit.php',
+        'wp-multi' => 'WP-Multi/wp-multi.php',
+        'WP-Multi-Search' => 'wp-multi-search/wp-multi-search.php',
+        'wp-multi-comment-notifications' => 'wp-multi-comment-notifications/wp-multi-comment-notifications.php'
+    );
+
+    foreach ($plugins_to_check as $repo => $file) {
+        if (array_key_exists($file, $installed_plugins) && is_plugin_active($file)) {
+            $plugin_data = get_plugin_data(WP_PLUGIN_DIR . '/' . $file);
+            $installed_version = $plugin_data['Version'];
+            $valid_release = wpmt_fetch_latest_release($repo, $show_prereleases);
+
+            if ($valid_release) {
+                $latest_version = $valid_release['tag_name'];
+                $release_notes = $valid_release['body'] ?? '';
+                $is_prerelease = isset($valid_release['prerelease']) && $valid_release['prerelease'];
+
+                update_option("wpmt_update_latest_version_{$repo}", $latest_version);
+                update_option("wpmt_update_release_notes_{$repo}", $release_notes);
+                update_option("wpmt_update_is_prerelease_{$repo}", $is_prerelease);
+            }
+        }
+    }
+}
+add_action('wpmt_update_check_event', 'wpmt_update_check');
+
+// Callback-Funktion für das Widget
+function wpmt_update_dashboard_widget_content() {
+    require_once ABSPATH . 'wp-admin/includes/plugin.php';
+    
+    $installed_plugins = get_plugins();
+    $show_prereleases = get_option('wpmt_update_show_prereleases', false);
+    
+    $plugins_to_check = array(
+        'wp-multi-toolkit' => array(
+            'file' => 'WP-Multi-Toolkit/wp-multi-toolkit.php',
+            'name' => 'WP Multi Toolkit',
+            'repo' => 'wp-multi-toolkit'
+        ),
+        'wp-multi' => array(
+            'file' => 'WP-Multi/wp-multi.php',
+            'name' => 'WP Multi',
+            'repo' => 'wp-multi'
+        ),
+        'WP-Multi-Search' => array(
+            'file' => 'wp-multi-search/wp-multi-search.php',
+            'name' => 'WP Multi Search',
+            'repo' => 'WP-Multi-Search'
+        ),
+        'wp-multi-comment-notifications' => array(
+            'file' => 'wp-multi-comment-notifications/wp-multi-comment-notifications.php',
+            'name' => 'WP Multi Comment Notifications',
+            'repo' => 'wp-multi-comment-notifications'
+        )
+    );
+
+    $has_active_plugins = false;
+    foreach ($plugins_to_check as $key => $plugin) {
+        $is_installed = array_key_exists($plugin['file'], $installed_plugins);
+        $is_active = $is_installed && is_plugin_active($plugin['file']);
+
+        if ($is_installed && $is_active) {
+            $has_active_plugins = true;
+            $plugin_data = get_plugin_data(WP_PLUGIN_DIR . '/' . $plugin['file']);
+            $installed_version = $plugin_data['Version'];
+            $valid_release = wpmt_fetch_latest_release($plugin['repo'], $show_prereleases);
+
+            echo '<h4>' . esc_html($plugin['name']) . '</h4>';
+            if ($valid_release === false) {
+                printf('<p>%s</p>', esc_html__('Fehler beim Abrufen der Versionsinformationen von Gitea.', 'wp-multi-toolkit'));
+            } elseif ($valid_release) {
+                $latest_version = $valid_release['tag_name'];
+                $release_notes = $valid_release['body'] ?? '';
+                $is_prerelease = isset($valid_release['prerelease']) && $valid_release['prerelease'];
+
+                if (version_compare($installed_version, $latest_version, '>=')) {
+                    printf(
+                        '<p style="color: green;">%s</p>',
+                        sprintf(
+                            __('Ihre Version ist aktuell. Version %s ist die neueste Version.', 'wp-multi-toolkit'),
+                            esc_html($installed_version)
+                        )
+                    );
+                } else {
+                    printf(
+                        '<p style="color: red;">%s</p>',
+                        sprintf(
+                            __('Es ist eine neue Version von %s verfügbar! <strong>Version %s</strong> ist jetzt verfügbar.', 'wp-multi-toolkit'),
+                            esc_html($plugin['name']),
+                            esc_html($latest_version)
+                        )
+                    );
+                    printf(
+                        '<p>%s: <strong>%s</strong></p>',
+                        __('Aktuell installierte Version', 'wp-multi-toolkit'),
+                        esc_html($installed_version)
+                    );
+                    printf(
+                        '<p>%s: <strong>%s</strong></p>',
+                        __('Neue Version auf Gitea', 'wp-multi-toolkit'),
+                        esc_html($latest_version)
+                    );
+
+                    if ($is_prerelease && $show_prereleases) {
+                        printf('<p style="color: blue;">%s</p>', __('Dieses Update ist ein PreRelease.', 'wp-multi-toolkit'));
+                    }
+
+                    if (!empty($release_notes)) {
+                        printf(
+                            '<p><strong>%s:</strong></p><p>%s</p>',
+                            __('Information zum Update', 'wp-multi-toolkit'),
+                            nl2br(esc_html($release_notes))
+                        );
+                    }
+
+                    $button_text = $is_prerelease ? __('PreRelease herunterladen', 'wp-multi-toolkit') : __('Update herunterladen', 'wp-multi-toolkit');
+                    $download_url = $valid_release['assets'][0]['browser_download_url'] ?? '#';
+                    printf(
+                        '<p><a href="%s" class="button button-primary">%s</a></p>',
+                        esc_url($download_url),
+                        esc_html($button_text)
+                    );
+                }
+            } else {
+                printf('<p>%s</p>', esc_html__('Keine Versionsinformationen gefunden.', 'wp-multi-toolkit'));
+            }
+        }
+    }
+
+    if (!$has_active_plugins) {
+        echo '<p>' . __('Keine aktiven WP Multi Plugins gefunden.', 'wp-multi-toolkit') . '</p>';
+    }
+
+    // Optionale Plugins
+    $optional_plugins = array(
+        'wp-multi-toolkit' => array(
+            'file' => 'WP-Multi-Toolkit/wp-multi-toolkit.php',
+            'download_url' => 'https://git.viper.ipv64.net/M_Viper/wp-multi-toolkit/releases',
+            'description' => __('Kern-Toolkit für WP Multi Plugins.', 'wp-multi-toolkit')
+        ),
+        'wp-multi' => array(
+            'file' => 'WP-Multi/wp-multi.php',
+            'download_url' => 'https://git.viper.ipv64.net/M_Viper/wp-multi/releases',
+            'description' => __('Hauptplugin für WP Multi Funktionen.', 'wp-multi-toolkit')
+        ),
+        'WP-Multi-Search' => array(
+            'file' => 'wp-multi-search/wp-multi-search.php',
+            'download_url' => 'https://git.viper.ipv64.net/M_Viper/WP-Multi-Search/releases',
+            'description' => __('Erweiterte Suchfunktionen.', 'wp-multi-toolkit')
+        ),
+        'wp-multi-comment-notifications' => array(
+            'file' => 'wp-multi-comment-notifications/wp-multi-comment-notifications.php',
+            'download_url' => 'https://git.viper.ipv64.net/M_Viper/wp-multi-comment-notifications/releases',
+            'description' => __('Kommentar-Benachrichtigungen.', 'wp-multi-toolkit')
+        )
+    );
+
+    echo '<hr style="margin: 20px 0;"><h3>' . __('Optionale Plugins', 'wp-multi-toolkit') . '</h3>';
+    echo '<table style="width: 100%; border-collapse: collapse;">';
+    echo '<tr><th style="text-align: left; padding: 5px;">' . __('Plugin', 'wp-multi-toolkit') . '</th><th style="text-align: left; padding: 5px;">' . __('Beschreibung', 'wp-multi-toolkit') . '</th><th style="text-align: left; padding: 5px;">' . __('Status', 'wp-multi-toolkit') . '</th><th style="text-align: left; padding: 5px;">' . __('Aktion', 'wp-multi-toolkit') . '</th></tr>';
+
+    foreach ($optional_plugins as $key => $plugin) {
+        $is_installed = array_key_exists($plugin['file'], $installed_plugins);
+        $is_active = $is_installed && is_plugin_active($plugin['file']);
+
+        echo '<tr style="border-bottom: 1px solid #ddd;">';
+        echo '<td style="padding: 5px;"><strong>' . esc_html($plugins_to_check[$key]['name']) . '</strong></td>';
+        echo '<td style="padding: 5px;">' . esc_html($plugin['description']) . '</td>';
+        echo '<td style="padding: 5px;">';
+        if ($is_active) {
+            echo '<span style="color: green;">' . __('Aktiv', 'wp-multi-toolkit') . '</span>';
+        } elseif ($is_installed) {
+            echo '<span style="color: orange;">' . __('Inaktiv', 'wp-multi-toolkit') . '</span>';
+        } else {
+            echo '<span style="color: red;">' . __('Nicht installiert', 'wp-multi-toolkit') . '</span>';
+        }
+        echo '</td>';
+        echo '<td style="padding: 5px;">';
+        if ($is_active) {
+            echo '—';
+        } elseif ($is_installed) {
+            echo '<a href="' . esc_url(wp_nonce_url(admin_url('plugins.php?action=activate&plugin=' . $plugin['file']), 'activate-plugin_' . $plugin['file'])) . '" class="button">' . __('Aktivieren', 'wp-multi-toolkit') . '</a>';
+        } else {
+            echo '<a href="' . esc_url($plugin['download_url']) . '" class="button button-primary" target="_blank">' . __('Herunterladen', 'wp-multi-toolkit') . '</a>';
+        }
+        echo '</td>';
+        echo '</tr>';
+    }
+    echo '</table>';
+}
+
+// Update-Einstellungen
+function wpmt_update_general_settings() {
+    add_settings_section(
+        'wpmt_update_section',
+        __('WP Multi Toolkit Update Einstellungen', 'wp-multi-toolkit'),
+        null,
+        'general'
+    );
+
+    add_settings_field(
+        'wpmt_update_show_prereleases',
+        __('Pre-Releases anzeigen', 'wp-multi-toolkit'),
+        'wpmt_update_show_prereleases_callback',
+        'general',
+        'wpmt_update_section'
+    );
+
+    register_setting('general', 'wpmt_update_show_prereleases', array(
+        'type' => 'boolean',
+        'description' => __('Aktivieren, um Pre-Releases im Dashboard und in den Versionsinformationen anzuzeigen.', 'wp-multi-toolkit'),
+        'default' => 0,
+    ));
+}
+add_action('admin_init', 'wpmt_update_general_settings');
+
+// Callback-Funktion für das Anzeigen der Checkbox
+function wpmt_update_show_prereleases_callback() {
+    $checked = get_option('wpmt_update_show_prereleases', false);
+    echo '<input type="checkbox" name="wpmt_update_show_prereleases" value="1" ' . checked(1, $checked, false) . '/>';
+    echo '<p style="color: red;"><small>' . __('Achtung: Pre-Releases sind Beta-Versionen und können Fehler enthalten. Verwenden Sie sie nur, wenn Sie Fehlerberichterstattung oder Tests durchführen möchten.', 'wp-multi-toolkit') . '</small></p>';
+}
+
+// Deinstallation
+function wpmt_uninstall() {
+    $repos = array('wp-multi-toolkit', 'wp-multi', 'WP-Multi-Search', 'wp-multi-comment-notifications');
+    foreach ($repos as $repo) {
+        delete_option("wpmt_update_latest_version_{$repo}");
+        delete_option("wpmt_update_release_notes_{$repo}");
+        delete_option("wpmt_update_is_prerelease_{$repo}");
+    }
+    delete_option('wpmt_update_show_prereleases');
+    delete_option('wpmt_multi_settings');
+    wp_clear_scheduled_hook('wpmt_update_check_event');
+}
+register_uninstall_hook(__FILE__, 'wpmt_uninstall');
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