From 3c1cc30fe9676bb2b48f4164d80243ffe69f1095 Mon Sep 17 00:00:00 2001
From: Lars Gebhardt-Kusche <lars@kusche.berlin>
Date: Thu, 4 Jun 2026 22:07:25 +0200
Subject: [PATCH] nexus basic

---
 partials/landingpages/dashboard.php           |  98 ++++-
 partials/landingpages/index.php               | 297 ++++++-------
 partials/landingpages/integrations.php        |  21 +-
 partials/landingpages/users/settings.php      |  41 +-
 partials/landingpages/users/settings_apps.php | 125 ++++++
 .../users/settings_search_engines.php         | 142 +++++++
 .../landingpages/users/settings_widgets.php   | 130 ++++++
 public/assets/css/app.css                     |  14 +
 public/index.php                              |   8 +-
 src/App/BaseSchema.php                        | 144 +++++++
 src/App/NexusDashboardService.php             | 399 +++++++++++++++++-
 11 files changed, 1222 insertions(+), 197 deletions(-)
 create mode 100644 partials/landingpages/users/settings_apps.php
 create mode 100644 partials/landingpages/users/settings_search_engines.php
 create mode 100644 partials/landingpages/users/settings_widgets.php

diff --git a/partials/landingpages/dashboard.php b/partials/landingpages/dashboard.php
index 0a295a1..8f9dcdf 100644
--- a/partials/landingpages/dashboard.php
+++ b/partials/landingpages/dashboard.php
@@ -23,6 +23,12 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             $config = [];
             if ($itemType === 'page_module') {
                 $config['page_module_id'] = (int) ($_POST['page_module_id'] ?? 0);
+            } elseif ($itemType === 'app') {
+                $config['app_id'] = (int) ($_POST['app_id'] ?? 0);
+            } elseif ($itemType === 'widget_template') {
+                $config['widget_template_id'] = (int) ($_POST['widget_template_id'] ?? 0);
+            } elseif ($itemType === 'bookmark_group') {
+                $config['bookmarks'] = trim((string) ($_POST['bookmarks'] ?? ''));
             } else {
                 $config['url'] = trim((string) ($_POST['target_url'] ?? ''));
             }
@@ -61,10 +67,20 @@ if ($currentDashboard === null) {
 $currentDashboardId = (int) ($currentDashboard['id'] ?? 0);
 $dashboardItems = $service->listItems($currentDashboardId);
 $ownPageModules = $service->listPageModulesForOwner($ownerKey);
+$availableApps = $service->listApps($ownerKey, true);
+$availableWidgetTemplates = $service->listWidgetTemplates($ownerKey, true);
 $pageModuleMap = [];
 foreach ($ownPageModules as $pageModule) {
     $pageModuleMap[(int) ($pageModule['id'] ?? 0)] = $pageModule;
 }
+$appMap = [];
+foreach ($availableApps as $appEntry) {
+    $appMap[(int) ($appEntry['id'] ?? 0)] = $appEntry;
+}
+$widgetTemplateMap = [];
+foreach ($availableWidgetTemplates as $template) {
+    $widgetTemplateMap[(int) ($template['id'] ?? 0)] = $template;
+}
 
 $GLOBALS['layout_header_base_title'] = 'Nexus';
 $GLOBALS['layout_header_title'] = 'Nexus';
@@ -115,7 +131,7 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
 
   <section class="section-box">
     <h2>Element hinzufügen</h2>
-    <p class="muted">V1 unterstützt direkte Links, iFrames und gespeicherte Seitenmodule.</p>
+    <p class="muted">Verfügbar sind direkte Links, iFrames, persönliche Linklisten, globale Apps, Seitenmodule und wiederverwendbare Widgets.</p>
     <form method="post" class="setup-form">
       <input type="hidden" name="action" value="add_item">
       <input type="hidden" name="dashboard_id" value="<?= $currentDashboardId ?>">
@@ -129,7 +145,10 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
           <select name="item_type" data-dashboard-item-type>
             <option value="link">Link</option>
             <option value="iframe">iFrame</option>
+            <option value="bookmark_group">Linkliste</option>
+            <option value="app">App</option>
             <option value="page_module">Seitenmodul</option>
+            <option value="widget_template">Widget-Vorlage</option>
           </select>
         </label>
       </div>
@@ -142,6 +161,19 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
           <span>Ziel-URL</span>
           <input type="url" name="target_url" placeholder="https://...">
         </label>
+        <label class="setup-field muted" data-dashboard-bookmarks hidden>
+          <span>Linkliste</span>
+          <textarea name="bookmarks" rows="5" placeholder="Bezeichnung | https://ziel.example&#10;Nexus | /dashboard"></textarea>
+        </label>
+        <label class="setup-field muted" data-dashboard-app hidden>
+          <span>App</span>
+          <select name="app_id">
+            <option value="0">Bitte wählen</option>
+            <?php foreach ($availableApps as $appEntry): ?>
+              <option value="<?= (int) ($appEntry['id'] ?? 0) ?>"><?= e((string) ($appEntry['name'] ?? 'App')) ?></option>
+            <?php endforeach; ?>
+          </select>
+        </label>
         <label class="setup-field muted" data-dashboard-page-module hidden>
           <span>Seitenmodul</span>
           <select name="page_module_id">
@@ -151,6 +183,15 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
             <?php endforeach; ?>
           </select>
         </label>
+        <label class="setup-field muted" data-dashboard-widget-template hidden>
+          <span>Widget-Vorlage</span>
+          <select name="widget_template_id">
+            <option value="0">Bitte wählen</option>
+            <?php foreach ($availableWidgetTemplates as $template): ?>
+              <option value="<?= (int) ($template['id'] ?? 0) ?>"><?= e((string) ($template['name'] ?? 'Widget')) ?></option>
+            <?php endforeach; ?>
+          </select>
+        </label>
       </div>
       <div class="setup-grid">
         <label class="setup-field muted">
@@ -189,6 +230,11 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
         <?php
           $itemType = (string) ($item['item_type'] ?? 'link');
           $config = is_array($item['config'] ?? null) ? $item['config'] : [];
+          if ($itemType === 'widget_template' && !empty($config['widget_template_id']) && isset($widgetTemplateMap[(int) $config['widget_template_id']])) {
+              $template = $widgetTemplateMap[(int) $config['widget_template_id']];
+              $itemType = (string) ($template['widget_type'] ?? $itemType);
+              $config = array_merge(is_array($template['config'] ?? null) ? $template['config'] : [], $config);
+          }
           $columnSpan = max(1, min(4, (int) ($item['column_span'] ?? 1)));
           $rowSpan = max(1, min(4, (int) ($item['row_span'] ?? 1)));
           $gridStyles = 'grid-column: span ' . $columnSpan . '; grid-row: span ' . $rowSpan . ';';
@@ -202,10 +248,30 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
           if ($itemType === 'page_module' && !empty($config['page_module_id'])) {
               $pageModule = $pageModuleMap[(int) $config['page_module_id']] ?? null;
           }
+          $appEntry = null;
+          if ($itemType === 'app' && !empty($config['app_id'])) {
+              $appEntry = $appMap[(int) $config['app_id']] ?? null;
+          }
           $targetUrl = trim((string) ($config['url'] ?? ''));
           if ($pageModule !== null) {
               $targetUrl = trim((string) ($pageModule['target_url'] ?? $targetUrl));
           }
+          if ($appEntry !== null) {
+              $targetUrl = trim((string) ($appEntry['app_url'] ?? $targetUrl));
+          }
+          $bookmarks = [];
+          if ($itemType === 'bookmark_group') {
+              foreach (preg_split('/\r\n|\r|\n/', trim((string) ($config['bookmarks'] ?? ''))) ?: [] as $line) {
+                  $line = trim($line);
+                  if ($line === '') {
+                      continue;
+                  }
+                  [$label, $url] = array_pad(array_map('trim', explode('|', $line, 2)), 2, '');
+                  if ($label !== '' && $url !== '') {
+                      $bookmarks[] = ['label' => $label, 'url' => $url];
+                  }
+              }
+          }
         ?>
         <article class="card-box dashboard-widget" style="<?= e($gridStyles) ?>">
           <div class="dashboard-widget__head">
@@ -224,8 +290,22 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
             </form>
           </div>
 
-          <?php if (($itemType === 'iframe' || ($pageModule !== null && (string) ($pageModule['module_type'] ?? '') === 'iframe')) && $targetUrl !== ''): ?>
+          <?php if ($itemType === 'bookmark_group' && $bookmarks !== []): ?>
+            <div class="dashboard-links">
+              <?php foreach ($bookmarks as $bookmark): ?>
+                <a class="module-button module-button--secondary module-button--small" href="<?= e($bookmark['url']) ?>" target="_blank" rel="noreferrer"><?= e($bookmark['label']) ?></a>
+              <?php endforeach; ?>
+            </div>
+          <?php elseif (($itemType === 'iframe' || ($pageModule !== null && (string) ($pageModule['module_type'] ?? '') === 'iframe')) && $targetUrl !== ''): ?>
             <iframe class="dashboard-widget__frame" src="<?= e($targetUrl) ?>" loading="lazy" referrerpolicy="no-referrer"></iframe>
+          <?php elseif ($appEntry !== null): ?>
+            <div class="dashboard-widget__meta">
+              <?php if (!empty($appEntry['icon_url'])): ?>
+                <img class="dashboard-app-icon" src="<?= e((string) $appEntry['icon_url']) ?>" alt="">
+              <?php endif; ?>
+              <p><?= e((string) ($appEntry['description'] ?? $targetUrl)) ?></p>
+              <a class="module-button module-button--secondary module-button--small" href="<?= e($targetUrl) ?>" target="_blank" rel="noreferrer">App öffnen</a>
+            </div>
           <?php elseif ($pageModule !== null): ?>
             <div class="dashboard-widget__meta">
               <p><?= e((string) ($pageModule['description'] ?? 'Seitenmodul aus der globalen Nexus-Verwaltung.')) ?></p>
@@ -249,11 +329,17 @@ $GLOBALS['layout_header_text'] = 'Persönliche Arbeitsfläche mit frei platzierb
     const typeSelect = document.querySelector('[data-dashboard-item-type]');
     const urlField = document.querySelector('[data-dashboard-target-url]');
     const pageModuleField = document.querySelector('[data-dashboard-page-module]');
-    if (!typeSelect || !urlField || !pageModuleField) return;
+    const bookmarksField = document.querySelector('[data-dashboard-bookmarks]');
+    const appField = document.querySelector('[data-dashboard-app]');
+    const widgetTemplateField = document.querySelector('[data-dashboard-widget-template]');
+    if (!typeSelect || !urlField || !pageModuleField || !bookmarksField || !appField || !widgetTemplateField) return;
     const sync = () => {
-      const isPageModule = typeSelect.value === 'page_module';
-      urlField.hidden = isPageModule;
-      pageModuleField.hidden = !isPageModule;
+      const value = typeSelect.value;
+      urlField.hidden = !['link', 'iframe'].includes(value);
+      pageModuleField.hidden = value !== 'page_module';
+      bookmarksField.hidden = value !== 'bookmark_group';
+      appField.hidden = value !== 'app';
+      widgetTemplateField.hidden = value !== 'widget_template';
     };
     typeSelect.addEventListener('change', sync);
     sync();
diff --git a/partials/landingpages/index.php b/partials/landingpages/index.php
index dc21f01..afc8d3e 100644
--- a/partials/landingpages/index.php
+++ b/partials/landingpages/index.php
@@ -3,202 +3,143 @@ declare(strict_types=1);
 
 $auth = app()->auth();
 $authUser = $auth->user();
+$service = dashboards();
 $ownerKey = auth_user_key();
 $groups = auth_groups();
-$service = dashboards();
-$modules = array_values(array_filter(
-    $auth->filterModules(modules()->all()),
-    static fn (array $module): bool => !empty($module['enabled'])
-));
-
-$dashboardsList = [];
-$pageModules = [];
-$defaultDashboard = null;
-$dashboardItems = [];
-
-if ($authUser !== null && $service->available() && $ownerKey !== '') {
-    $defaultDashboard = $service->ensureDefaultDashboard($ownerKey, 'Mein Dashboard');
-    $dashboardsList = $service->listAccessibleDashboards($ownerKey, $groups);
-    $pageModules = $service->listPageModulesForOwner($ownerKey);
-    if ($defaultDashboard !== []) {
-        $dashboardItems = $service->listItems((int) ($defaultDashboard['id'] ?? 0));
-    }
+$selectedDashboardId = (int) ($_GET['board'] ?? 0);
+$currentDashboard = $service->available()
+    ? $service->resolveHomeDashboard($ownerKey !== '' ? $ownerKey : null, $groups, $authUser !== null, $selectedDashboardId)
+    : null;
+$dashboardItems = $currentDashboard !== null ? $service->listItems((int) ($currentDashboard['id'] ?? 0)) : [];
+$accessibleApps = ($authUser !== null && $service->available()) ? $service->listApps($ownerKey, true) : [];
+$appsById = [];
+foreach ($accessibleApps as $appEntry) {
+    $appsById[(int) ($appEntry['id'] ?? 0)] = $appEntry;
+}
+$widgetTemplates = ($authUser !== null && $service->available()) ? $service->listWidgetTemplates($ownerKey, true) : [];
+$widgetTemplatesById = [];
+foreach ($widgetTemplates as $template) {
+    $widgetTemplatesById[(int) ($template['id'] ?? 0)] = $template;
 }
 
 $GLOBALS['layout_header_base_title'] = 'Nexus';
 $GLOBALS['layout_header_title'] = 'Nexus';
-$GLOBALS['layout_header_context'] = 'Übersicht';
-$GLOBALS['layout_header_text'] = $authUser === null
-    ? 'Zentraler Einstieg in Nexus und die verfügbaren Bereiche.'
-    : 'Persönliche Übersicht aus Dashboards, Seitenmodulen und klassischen Modulen.';
+$GLOBALS['layout_header_context'] = $currentDashboard !== null ? (string) ($currentDashboard['title'] ?? 'Dashboard') : 'Dashboard';
+$GLOBALS['layout_header_text'] = $currentDashboard !== null
+    ? (string) ($currentDashboard['description'] ?? '')
+    : 'Kein öffentliches oder persönliches Home-Dashboard verfügbar.';
+
+$renderBookmarks = static function (array $config): array {
+    $items = [];
+    $raw = trim((string) ($config['bookmarks'] ?? ''));
+    if ($raw === '') {
+        return [];
+    }
+    foreach (preg_split('/\r\n|\r|\n/', $raw) ?: [] as $line) {
+        $line = trim($line);
+        if ($line === '') {
+            continue;
+        }
+        [$label, $url] = array_pad(array_map('trim', explode('|', $line, 2)), 2, '');
+        if ($label !== '' && $url !== '') {
+            $items[] = ['label' => $label, 'url' => $url];
+        }
+    }
+    return $items;
+};
 ?>
 <div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">
-  <?php if ($authUser !== null): ?>
-    <header class="module-hero submenu-box">
-      <div class="module-hero-top module-hero-top--compact">
-        <nav class="module-tabs" aria-label="Nexus Navigation">
-          <a class="module-button module-button--tab-active" href="/">Nexus Übersicht</a>
-          <a class="module-button module-button--tab" href="/dashboard">Dashboard</a>
-          <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
-          <a class="module-button module-button--tab" href="/integrations">Integrationen</a>
-          <a class="module-button module-button--tab" href="/page-modules">Seitenmodule</a>
-          <?php if (auth_is_admin()): ?>
-            <a class="module-button module-button--tab" href="/modules">Aktive Module</a>
-          <?php endif; ?>
-        </nav>
-        <div class="module-hero-actions module-submenu-actions">
-          <a class="module-button module-button--secondary module-button--small" href="/settings">Nexus Einstellungen</a>
-        </div>
-      </div>
-    </header>
-
+  <?php if ($currentDashboard === null): ?>
     <section class="section-box">
-      <h2>Mein Standard-Dashboard</h2>
-      <p class="muted">Der schnellste Einstieg in deine wichtigsten Nexus-Inhalte.</p>
-      <?php if ($defaultDashboard === null || $defaultDashboard === []): ?>
-        <div class="dashboard-empty">Kein Dashboard verfügbar.</div>
-      <?php else: ?>
-        <div class="nexus-quick-grid">
-          <article class="card-box nexus-stat-card">
-            <span class="module-admin-meta__label">Dashboard</span>
-            <strong><?= e((string) ($defaultDashboard['title'] ?? 'Mein Dashboard')) ?></strong>
-            <p class="muted"><?= e((string) ($defaultDashboard['description'] ?? 'Persönliches Standard-Dashboard')) ?></p>
-            <a class="module-button module-button--secondary module-button--small" href="/dashboard?id=<?= (int) ($defaultDashboard['id'] ?? 0) ?>">Öffnen</a>
-          </article>
-          <article class="card-box nexus-stat-card">
-            <span class="module-admin-meta__label">Elemente</span>
-            <strong><?= count($dashboardItems) ?></strong>
-            <p class="muted">Aktive Dashboard-Elemente im Standard-Dashboard.</p>
-          </article>
-          <article class="card-box nexus-stat-card">
-            <span class="module-admin-meta__label">Seitenmodule</span>
-            <strong><?= count($pageModules) ?></strong>
-            <p class="muted">Eigene, on-the-fly angelegte Seitenmodule.</p>
-          </article>
-          <article class="card-box nexus-stat-card">
-            <span class="module-admin-meta__label">Klassische Module</span>
-            <strong><?= count($modules) ?></strong>
-            <p class="muted">Aktuell sichtbare, klassische Nexus-Module.</p>
-          </article>
-        </div>
+      <h2>Kein Home-Dashboard verfügbar</h2>
+      <p class="muted">Lege als Administrator ein öffentliches Dashboard fest oder richte dein persönliches Dashboard ein.</p>
+      <?php if ($authUser !== null): ?>
+        <a class="module-button module-button--secondary module-button--small" href="/dashboard">Zum Dashboard</a>
       <?php endif; ?>
     </section>
-
+  <?php elseif ($dashboardItems === []): ?>
     <section class="section-box">
-      <h2>Dashboards</h2>
-      <p class="muted">Eigene und freigegebene Dashboards im globalen Nexus-System.</p>
-      <div class="module-admin-grid module-admin-grid--compact">
-        <?php foreach (array_slice($dashboardsList, 0, 6) as $dashboard): ?>
-          <article class="card-box module-admin-card">
-            <div class="module-admin-card__head">
-              <div class="module-admin-card__title">
-                <h2><?= e((string) ($dashboard['title'] ?? 'Dashboard')) ?></h2>
-                <p><?= e((string) ($dashboard['description'] ?? 'Flexible Dashboard-Fläche für Widgets und Seitenmodule.')) ?></p>
-              </div>
-            </div>
-            <div class="module-admin-meta">
-              <div class="module-admin-meta__item">
-                <span class="module-admin-meta__label">Sichtbarkeit</span>
-                <strong class="module-admin-badge"><?= e(ucfirst((string) ($dashboard['visibility'] ?? 'private'))) ?></strong>
-              </div>
-            </div>
-            <div class="module-admin-actions">
-              <a class="module-button module-button--secondary module-button--small" href="/dashboard?id=<?= (int) ($dashboard['id'] ?? 0) ?>">Öffnen</a>
-            </div>
-          </article>
-        <?php endforeach; ?>
-      </div>
-    </section>
-
-    <div class="module-admin-grid">
-      <article class="card-box module-admin-card">
-        <div class="module-admin-card__head">
-          <div class="module-admin-card__title">
-            <h2>Seitenmodule</h2>
-            <p>On-the-fly angelegte Zielseiten und eingebettete Tools.</p>
-          </div>
-        </div>
-        <div class="module-admin-meta">
-          <div class="module-admin-meta__item">
-            <span class="module-admin-meta__label">Anzahl</span>
-            <strong class="module-admin-badge module-admin-badge--success"><?= count($pageModules) ?></strong>
-          </div>
-        </div>
-        <div class="module-admin-actions">
-          <a class="module-button module-button--secondary module-button--small" href="/page-modules">Verwalten</a>
-        </div>
-      </article>
-
-      <article class="card-box module-admin-card">
-        <div class="module-admin-card__head">
-          <div class="module-admin-card__title">
-            <h2>Integrationen</h2>
-            <p>Zentrale Anbindungen an Home Assistant, Pi-hole, Proxmox und andere Systeme.</p>
-          </div>
-        </div>
-        <div class="module-admin-actions">
-          <a class="module-button module-button--secondary module-button--small" href="/integrations">Verwalten</a>
-        </div>
-      </article>
-
-      <article class="card-box module-admin-card">
-        <div class="module-admin-card__head">
-          <div class="module-admin-card__title">
-            <h2>Dashboards konfigurieren</h2>
-            <p>Eigene Dashboard-Flächen, Reihenfolge und Standard-Dashboard verwalten.</p>
-          </div>
-        </div>
-        <div class="module-admin-actions">
-          <a class="module-button module-button--secondary module-button--small" href="/dashboards">Öffnen</a>
-        </div>
-      </article>
-    </div>
-
-    <section class="section-box">
-      <h2>Klassische Module</h2>
-      <p class="muted">Die bisherigen Nexus-Module bleiben parallel zum neuen Grundgerüst bestehen.</p>
-      <div class="module-list">
-        <?php foreach ($modules as $module): ?>
-          <a class="module-row" href="<?= e((string) ($module['entry'] ?? ('/module/' . $module['name']))) ?>">
-            <span class="module-row__icon"><?= e(strtoupper(substr((string) ($module['title'] ?? $module['name']), 0, 1))) ?></span>
-            <span class="module-row__content">
-              <strong class="module-title"><?= e((string) ($module['title'] ?? $module['name'] ?? 'Modul')) ?></strong>
-              <span class="module-desc"><?= e((string) ($module['description'] ?? '')) ?></span>
-            </span>
-          </a>
-        <?php endforeach; ?>
-      </div>
+      <h2><?= e((string) ($currentDashboard['title'] ?? 'Dashboard')) ?></h2>
+      <p class="muted">Dieses Dashboard enthält noch keine Elemente.</p>
+      <?php if ($authUser !== null): ?>
+        <a class="module-button module-button--secondary module-button--small" href="/dashboard?id=<?= (int) ($currentDashboard['id'] ?? 0) ?>">Dashboard bearbeiten</a>
+      <?php endif; ?>
     </section>
   <?php else: ?>
-    <section class="section-box">
-      <h2>Nexus Einstieg</h2>
-      <p class="muted">Nach der Anmeldung stehen persönliche Dashboards, Integrationen und Seitenmodule bereit.</p>
-      <div class="module-admin-grid">
-        <article class="card-box module-admin-card">
-          <div class="module-admin-card__head">
-            <div class="module-admin-card__title">
-              <h2>Persönliche Dashboards</h2>
-              <p>Mehrere frei konfigurierbare Übersichten pro Benutzer.</p>
+    <div class="dashboard-grid">
+      <?php foreach ($dashboardItems as $item): ?>
+        <?php
+          $itemType = (string) ($item['item_type'] ?? 'link');
+          $config = is_array($item['config'] ?? null) ? $item['config'] : [];
+          if ($itemType === 'widget_template' && !empty($config['widget_template_id']) && isset($widgetTemplatesById[(int) $config['widget_template_id']])) {
+              $template = $widgetTemplatesById[(int) $config['widget_template_id']];
+              $itemType = (string) ($template['widget_type'] ?? $itemType);
+              $config = array_merge(is_array($template['config'] ?? null) ? $template['config'] : [], $config);
+          }
+          $columnSpan = max(1, min(4, (int) ($item['column_span'] ?? 1)));
+          $rowSpan = max(1, min(4, (int) ($item['row_span'] ?? 1)));
+          $gridStyles = 'grid-column: span ' . $columnSpan . '; grid-row: span ' . $rowSpan . ';';
+          if (!empty($item['grid_column'])) {
+              $gridStyles .= 'grid-column-start:' . (int) $item['grid_column'] . ';';
+          }
+          if (!empty($item['grid_row'])) {
+              $gridStyles .= 'grid-row-start:' . (int) $item['grid_row'] . ';';
+          }
+          $targetUrl = trim((string) ($config['url'] ?? ''));
+          $pageModule = null;
+          if ($itemType === 'page_module' && !empty($config['page_module_id'])) {
+              $pageModule = $service->getPageModule((int) $config['page_module_id'], $ownerKey, $groups);
+              $targetUrl = trim((string) ($pageModule['target_url'] ?? $targetUrl));
+          }
+          $appEntry = null;
+          if ($itemType === 'app' && !empty($config['app_id'])) {
+              $appEntry = $appsById[(int) $config['app_id']] ?? null;
+              $targetUrl = trim((string) ($appEntry['app_url'] ?? $targetUrl));
+          }
+          $bookmarks = $itemType === 'bookmark_group' ? $renderBookmarks($config) : [];
+        ?>
+        <article class="card-box dashboard-widget" style="<?= e($gridStyles) ?>">
+          <div class="dashboard-widget__head">
+            <div>
+              <span class="module-admin-meta__label"><?= e(strtoupper(str_replace('_', ' ', $itemType))) ?></span>
+              <h2><?= e((string) ($item['title'] ?? 'Element')) ?></h2>
+              <?php if (!empty($item['description'])): ?>
+                <p><?= e((string) $item['description']) ?></p>
+              <?php endif; ?>
             </div>
           </div>
-        </article>
-        <article class="card-box module-admin-card">
-          <div class="module-admin-card__head">
-            <div class="module-admin-card__title">
-              <h2>Integrationen</h2>
-              <p>Zentrale Anbindungen für Fremdsysteme und externe Datenquellen.</p>
+
+          <?php if ($itemType === 'bookmark_group' && $bookmarks !== []): ?>
+            <div class="dashboard-links">
+              <?php foreach ($bookmarks as $bookmark): ?>
+                <a class="module-button module-button--secondary module-button--small" href="<?= e($bookmark['url']) ?>" target="_blank" rel="noreferrer"><?= e($bookmark['label']) ?></a>
+              <?php endforeach; ?>
             </div>
-          </div>
-        </article>
-        <article class="card-box module-admin-card">
-          <div class="module-admin-card__head">
-            <div class="module-admin-card__title">
-              <h2>Seitenmodule</h2>
-              <p>On-the-fly angelegte Links und eingebettete Weboberflächen.</p>
+          <?php elseif (($itemType === 'iframe' || ($pageModule !== null && (string) ($pageModule['module_type'] ?? '') === 'iframe')) && $targetUrl !== ''): ?>
+            <iframe class="dashboard-widget__frame" src="<?= e($targetUrl) ?>" loading="lazy" referrerpolicy="no-referrer"></iframe>
+          <?php elseif ($appEntry !== null): ?>
+            <div class="dashboard-widget__meta">
+              <?php if (!empty($appEntry['icon_url'])): ?>
+                <img class="dashboard-app-icon" src="<?= e((string) $appEntry['icon_url']) ?>" alt="">
+              <?php endif; ?>
+              <p><?= e((string) ($appEntry['description'] ?? $targetUrl)) ?></p>
+              <a class="module-button module-button--secondary module-button--small" href="<?= e($targetUrl) ?>" target="_blank" rel="noreferrer">App öffnen</a>
             </div>
-          </div>
+          <?php elseif ($pageModule !== null): ?>
+            <div class="dashboard-widget__meta">
+              <p><?= e((string) ($pageModule['description'] ?? 'Seitenmodul aus dem Nexus-System.')) ?></p>
+              <a class="module-button module-button--secondary module-button--small" href="/page-modules/view/<?= (int) ($pageModule['id'] ?? 0) ?>">Öffnen</a>
+            </div>
+          <?php elseif ($targetUrl !== ''): ?>
+            <div class="dashboard-widget__meta">
+              <p><?= e($targetUrl) ?></p>
+              <a class="module-button module-button--secondary module-button--small" href="<?= e($targetUrl) ?>" target="_blank" rel="noreferrer">Öffnen</a>
+            </div>
+          <?php else: ?>
+            <div class="dashboard-empty">Für dieses Element ist noch kein Inhalt hinterlegt.</div>
+          <?php endif; ?>
         </article>
-      </div>
-    </section>
+      <?php endforeach; ?>
+    </div>
   <?php endif; ?>
 </div></div></div>
diff --git a/partials/landingpages/integrations.php b/partials/landingpages/integrations.php
index 96f994e..5dc6aab 100644
--- a/partials/landingpages/integrations.php
+++ b/partials/landingpages/integrations.php
@@ -1,10 +1,10 @@
 <?php
 declare(strict_types=1);
 
-require_auth();
+require_admin();
 
 $service = dashboards();
-$ownerKey = auth_user_key();
+$ownerKey = 'system';
 $notice = null;
 $error = null;
 
@@ -39,19 +39,21 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 
 $integrations = $service->listIntegrationsForOwner($ownerKey);
 
-$GLOBALS['layout_header_base_title'] = 'Nexus';
-$GLOBALS['layout_header_title'] = 'Nexus';
+$GLOBALS['layout_header_base_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_title'] = 'Nexus Setup';
 $GLOBALS['layout_header_context'] = 'Integrationen';
-$GLOBALS['layout_header_text'] = 'Zentrale Anbindungen an externe Systeme, getrennt vom klassischen Modulsystem.';
+$GLOBALS['layout_header_text'] = 'Globale Integrationen für spätere Widgets, Apps und Suchfunktionen.';
 ?>
 <div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">
   <header class="module-hero submenu-box">
     <div class="module-hero-top module-hero-top--compact">
-      <nav class="module-tabs" aria-label="Integration Navigation">
-        <a class="module-button module-button--tab" href="/dashboard">Dashboard</a>
-        <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
+      <nav class="module-tabs" aria-label="Nexus Setup Navigation">
+        <a class="module-button module-button--tab" href="/settings">Allgemein</a>
+        <a class="module-button module-button--tab" href="/settings/widgets">Widgets</a>
         <a class="module-button module-button--tab-active" href="/integrations">Integrationen</a>
-        <a class="module-button module-button--tab" href="/page-modules">Seitenmodule</a>
+        <a class="module-button module-button--tab" href="/settings/search-engines">Suchmaschinen</a>
+        <a class="module-button module-button--tab" href="/settings/apps">Apps</a>
+        <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
       </nav>
       <div class="module-hero-actions module-submenu-actions">
         <a class="module-button module-button--secondary module-button--small" href="/">Nexus Übersicht</a>
@@ -93,7 +95,6 @@ $GLOBALS['layout_header_text'] = 'Zentrale Anbindungen an externe Systeme, getre
         <label class="setup-field muted">
           <span>Sichtbarkeit</span>
           <select name="visibility">
-            <option value="private">Privat</option>
             <option value="public">Öffentlich</option>
           </select>
         </label>
diff --git a/partials/landingpages/users/settings.php b/partials/landingpages/users/settings.php
index ac708d6..6933d6a 100644
--- a/partials/landingpages/users/settings.php
+++ b/partials/landingpages/users/settings.php
@@ -12,6 +12,7 @@ $timezoneOptions = modules()->timezones();
 $nexusSettings = nexus_settings();
 $isAdmin = auth_is_admin();
 $notice = null;
+$publicDashboards = $isAdmin ? dashboards()->listPublicDashboards() : [];
 
 if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $settingsSection = trim((string) ($_POST['settings_section'] ?? 'theme'));
@@ -19,6 +20,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         $displayTimezoneCustom = isset($_POST['display_timezone_custom']) ? '1' : '0';
         $displayTimezone = trim((string) ($_POST['display_timezone'] ?? ''));
         $cronTimezone = trim((string) ($_POST['cron_timezone'] ?? ''));
+        $globalHomeDashboardId = (int) ($_POST['global_home_dashboard_id'] ?? 0);
 
         foreach (['displayTimezone' => $displayTimezone, 'cronTimezone' => $cronTimezone] as $key => $value) {
             if ($value !== '') {
@@ -33,6 +35,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         $nexusSettings['display_timezone_custom'] = $displayTimezoneCustom;
         $nexusSettings['display_timezone'] = $displayTimezoneCustom === '1' ? $displayTimezone : '';
         $nexusSettings['cron_timezone'] = $cronTimezone;
+        $nexusSettings['global_home_dashboard_id'] = $globalHomeDashboardId > 0 ? (string) $globalHomeDashboardId : '';
         nexus_save_settings($nexusSettings);
         $nexusSettings = nexus_settings();
         $notice = 'Nexus-Einstellungen gespeichert.';
@@ -53,11 +56,35 @@ $effectiveCronTimezone = nexus_cron_timezone_name();
 $displayTimezoneCustom = !empty($nexusSettings['display_timezone_custom']);
 $savedDisplayTimezone = trim((string) ($nexusSettings['display_timezone'] ?? ''));
 $savedCronTimezone = trim((string) ($nexusSettings['cron_timezone'] ?? ''));
+$globalHomeDashboardId = (int) ($nexusSettings['global_home_dashboard_id'] ?? 0);
+
+$GLOBALS['layout_header_base_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_context'] = 'Allgemein';
+$GLOBALS['layout_header_text'] = 'Globale Grundeinstellungen, Home-Dashboard und systemweite Standardwerte.';
 ?>
 <div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">
+  <header class="module-hero submenu-box">
+    <div class="module-hero-top module-hero-top--compact">
+      <nav class="module-tabs" aria-label="Nexus Setup Navigation">
+        <a class="module-button module-button--tab-active" href="/settings">Allgemein</a>
+        <?php if ($isAdmin): ?>
+          <a class="module-button module-button--tab" href="/settings/widgets">Widgets</a>
+          <a class="module-button module-button--tab" href="/integrations">Integrationen</a>
+          <a class="module-button module-button--tab" href="/settings/search-engines">Suchmaschinen</a>
+          <a class="module-button module-button--tab" href="/settings/apps">Apps</a>
+          <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
+        <?php endif; ?>
+      </nav>
+      <div class="module-hero-actions module-submenu-actions">
+        <a class="module-button module-button--secondary module-button--small" href="/">Nexus Übersicht</a>
+      </div>
+    </div>
+  </header>
+
   <section class="section-box">
     <h1>Nexus Einstellungen</h1>
-    <p class="muted">Persönliche Anzeige und systemweite Standardwerte.</p>
+    <p class="muted">Persönliche Anzeige, Home-Dashboard und systemweite Standardwerte.</p>
 
     <?php if ($notice): ?>
       <div class="section-box" style="margin-top:1rem; border-color:var(--accent-2);">
@@ -115,6 +142,18 @@ $savedCronTimezone = trim((string) ($nexusSettings['cron_timezone'] ?? ''));
                 <div><?= e($systemTimezone) ?></div>
                 <small class="muted">Diese Zeitzone wird genutzt, wenn keine globale Anzeige-Zeitzone gesetzt ist.</small>
               </div>
+              <label class="setup-field muted">
+                <span>Öffentliches Home-Dashboard</span>
+                <select name="global_home_dashboard_id">
+                  <option value="0">Kein öffentliches Home-Dashboard</option>
+                  <?php foreach ($publicDashboards as $dashboard): ?>
+                    <option value="<?= (int) ($dashboard['id'] ?? 0) ?>" <?= (int) ($dashboard['id'] ?? 0) === $globalHomeDashboardId ? 'selected' : '' ?>>
+                      <?= e((string) ($dashboard['title'] ?? 'Dashboard')) ?>
+                    </option>
+                  <?php endforeach; ?>
+                </select>
+                <small class="muted">Dieses öffentliche Dashboard wird am Root-Pfad angezeigt, wenn Nutzer nicht eingeloggt sind.</small>
+              </label>
               <div class="setup-field muted">
                 <span>Anzeige-Zeitzone</span>
                 <label style="display:flex; align-items:center; gap:10px;">
diff --git a/partials/landingpages/users/settings_apps.php b/partials/landingpages/users/settings_apps.php
new file mode 100644
index 0000000..eb44265
--- /dev/null
+++ b/partials/landingpages/users/settings_apps.php
@@ -0,0 +1,125 @@
+<?php
+declare(strict_types=1);
+
+require_admin();
+
+$service = dashboards();
+$ownerKey = 'system';
+$notice = null;
+$error = null;
+$integrations = $service->listIntegrationsForOwner($ownerKey);
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $action = trim((string) ($_POST['action'] ?? ''));
+    try {
+        if ($action === 'create_app') {
+            $service->createApp($ownerKey, [
+                'name' => trim((string) ($_POST['name'] ?? '')),
+                'description' => trim((string) ($_POST['description'] ?? '')),
+                'app_url' => trim((string) ($_POST['app_url'] ?? '')),
+                'icon_url' => trim((string) ($_POST['icon_url'] ?? '')),
+                'integration_id' => (int) ($_POST['integration_id'] ?? 0),
+                'visibility' => 'public',
+            ]);
+            $notice = 'App gespeichert.';
+        } elseif ($action === 'delete_app') {
+            $service->deleteApp((int) ($_POST['app_id'] ?? 0), $ownerKey);
+            $notice = 'App gelöscht.';
+        }
+    } catch (\Throwable $exception) {
+        $error = $exception->getMessage();
+    }
+}
+
+$apps = $service->listApps($ownerKey, true);
+
+$GLOBALS['layout_header_base_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_context'] = 'Apps';
+$GLOBALS['layout_header_text'] = 'Globale Apps, die Nutzer später ihren Dashboards hinzufügen können.';
+?>
+<div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">
+  <header class="module-hero submenu-box">
+    <div class="module-hero-top module-hero-top--compact">
+      <nav class="module-tabs" aria-label="Nexus Setup Navigation">
+        <a class="module-button module-button--tab" href="/settings">Allgemein</a>
+        <a class="module-button module-button--tab" href="/settings/widgets">Widgets</a>
+        <a class="module-button module-button--tab" href="/integrations">Integrationen</a>
+        <a class="module-button module-button--tab" href="/settings/search-engines">Suchmaschinen</a>
+        <a class="module-button module-button--tab-active" href="/settings/apps">Apps</a>
+        <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
+      </nav>
+      <div class="module-hero-actions module-submenu-actions">
+        <a class="module-button module-button--secondary module-button--small" href="/">Nexus Übersicht</a>
+      </div>
+    </div>
+  </header>
+
+  <?php if ($error !== null): ?>
+    <section class="section-box"><?= e($error) ?></section>
+  <?php elseif ($notice !== null): ?>
+    <section class="section-box"><?= e($notice) ?></section>
+  <?php endif; ?>
+
+  <section class="section-box">
+    <h2>Neue App</h2>
+    <form method="post" class="setup-form">
+      <input type="hidden" name="action" value="create_app">
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Name</span>
+          <input type="text" name="name" required>
+        </label>
+        <label class="setup-field muted">
+          <span>App-URL</span>
+          <input type="url" name="app_url" required placeholder="https://...">
+        </label>
+      </div>
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Beschreibung</span>
+          <input type="text" name="description">
+        </label>
+        <label class="setup-field muted">
+          <span>Icon-URL optional</span>
+          <input type="url" name="icon_url" placeholder="https://.../icon.png">
+        </label>
+      </div>
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Integration optional</span>
+          <select name="integration_id">
+            <option value="0">Keine Integration</option>
+            <?php foreach ($integrations as $integration): ?>
+              <option value="<?= (int) ($integration['id'] ?? 0) ?>"><?= e((string) ($integration['name'] ?? 'Integration')) ?></option>
+            <?php endforeach; ?>
+          </select>
+        </label>
+      </div>
+      <div class="setup-actions setup-actions--footer">
+        <button class="cta-button" type="submit">App speichern</button>
+      </div>
+    </form>
+  </section>
+
+  <div class="module-admin-grid">
+    <?php foreach ($apps as $appEntry): ?>
+      <article class="card-box module-admin-card">
+        <div class="module-admin-card__head">
+          <div class="module-admin-card__title">
+            <h2><?= e((string) ($appEntry['name'] ?? 'App')) ?></h2>
+            <p><?= e((string) ($appEntry['description'] ?? ($appEntry['app_url'] ?? ''))) ?></p>
+          </div>
+        </div>
+        <div class="module-admin-actions">
+          <a class="module-button module-button--secondary module-button--small" href="<?= e((string) ($appEntry['app_url'] ?? '#')) ?>" target="_blank" rel="noreferrer">Öffnen</a>
+          <form method="post">
+            <input type="hidden" name="action" value="delete_app">
+            <input type="hidden" name="app_id" value="<?= (int) ($appEntry['id'] ?? 0) ?>">
+            <button class="module-button module-button--secondary module-button--small" type="submit">Löschen</button>
+          </form>
+        </div>
+      </article>
+    <?php endforeach; ?>
+  </div>
+</div></div></div>
diff --git a/partials/landingpages/users/settings_search_engines.php b/partials/landingpages/users/settings_search_engines.php
new file mode 100644
index 0000000..4216d9f
--- /dev/null
+++ b/partials/landingpages/users/settings_search_engines.php
@@ -0,0 +1,142 @@
+<?php
+declare(strict_types=1);
+
+require_admin();
+
+$service = dashboards();
+$ownerKey = 'system';
+$notice = null;
+$error = null;
+$integrations = $service->listIntegrationsForOwner($ownerKey);
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $action = trim((string) ($_POST['action'] ?? ''));
+    try {
+        if ($action === 'create_search_engine') {
+            $service->createSearchEngine($ownerKey, [
+                'name' => trim((string) ($_POST['name'] ?? '')),
+                'short_code' => trim((string) ($_POST['short_code'] ?? '')),
+                'engine_type' => trim((string) ($_POST['engine_type'] ?? 'template')),
+                'template_url' => trim((string) ($_POST['template_url'] ?? '')),
+                'integration_id' => (int) ($_POST['integration_id'] ?? 0),
+                'visibility' => 'public',
+                'is_default' => isset($_POST['is_default']),
+            ]);
+            $notice = 'Suchmaschine gespeichert.';
+        } elseif ($action === 'delete_search_engine') {
+            $service->deleteSearchEngine((int) ($_POST['engine_id'] ?? 0), $ownerKey);
+            $notice = 'Suchmaschine gelöscht.';
+        }
+    } catch (\Throwable $exception) {
+        $error = $exception->getMessage();
+    }
+}
+
+$engines = $service->listSearchEngines($ownerKey, true);
+
+$GLOBALS['layout_header_base_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_context'] = 'Suchmaschinen';
+$GLOBALS['layout_header_text'] = 'Globale Suchmaschinen für die spätere Suche im Nexus-System.';
+?>
+<div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">
+  <header class="module-hero submenu-box">
+    <div class="module-hero-top module-hero-top--compact">
+      <nav class="module-tabs" aria-label="Nexus Setup Navigation">
+        <a class="module-button module-button--tab" href="/settings">Allgemein</a>
+        <a class="module-button module-button--tab" href="/settings/widgets">Widgets</a>
+        <a class="module-button module-button--tab" href="/integrations">Integrationen</a>
+        <a class="module-button module-button--tab-active" href="/settings/search-engines">Suchmaschinen</a>
+        <a class="module-button module-button--tab" href="/settings/apps">Apps</a>
+        <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
+      </nav>
+      <div class="module-hero-actions module-submenu-actions">
+        <a class="module-button module-button--secondary module-button--small" href="/">Nexus Übersicht</a>
+      </div>
+    </div>
+  </header>
+
+  <?php if ($error !== null): ?>
+    <section class="section-box"><?= e($error) ?></section>
+  <?php elseif ($notice !== null): ?>
+    <section class="section-box"><?= e($notice) ?></section>
+  <?php endif; ?>
+
+  <section class="section-box">
+    <h2>Neue Suchmaschine</h2>
+    <form method="post" class="setup-form">
+      <input type="hidden" name="action" value="create_search_engine">
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Name</span>
+          <input type="text" name="name" required>
+        </label>
+        <label class="setup-field muted">
+          <span>Kurzcode</span>
+          <input type="text" name="short_code" placeholder="g" required>
+        </label>
+      </div>
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Typ</span>
+          <select name="engine_type">
+            <option value="template">Such-Template</option>
+            <option value="integration">Integration</option>
+          </select>
+        </label>
+        <label class="setup-field muted">
+          <span>Such-URL</span>
+          <input type="url" name="template_url" placeholder="https://www.google.com/search?q=%s">
+        </label>
+      </div>
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Integration optional</span>
+          <select name="integration_id">
+            <option value="0">Keine Integration</option>
+            <?php foreach ($integrations as $integration): ?>
+              <option value="<?= (int) ($integration['id'] ?? 0) ?>"><?= e((string) ($integration['name'] ?? 'Integration')) ?></option>
+            <?php endforeach; ?>
+          </select>
+        </label>
+        <label class="setup-field muted">
+          <input type="checkbox" name="is_default" value="1">
+          <span>Als globale Standard-Suche setzen</span>
+        </label>
+      </div>
+      <div class="setup-actions setup-actions--footer">
+        <button class="cta-button" type="submit">Suchmaschine speichern</button>
+      </div>
+    </form>
+  </section>
+
+  <div class="module-admin-grid">
+    <?php foreach ($engines as $engine): ?>
+      <article class="card-box module-admin-card">
+        <div class="module-admin-card__head">
+          <div class="module-admin-card__title">
+            <h2><?= e((string) ($engine['name'] ?? 'Suche')) ?></h2>
+            <p><?= e((string) (($engine['template_url'] ?? '') ?: 'Integration-basierte Suche.')) ?></p>
+          </div>
+        </div>
+        <div class="module-admin-meta">
+          <div class="module-admin-meta__item">
+            <span class="module-admin-meta__label">Kurzcode</span>
+            <strong class="module-admin-badge"><?= e((string) ($engine['short_code'] ?? '')) ?></strong>
+          </div>
+          <div class="module-admin-meta__item">
+            <span class="module-admin-meta__label">Standard</span>
+            <strong class="module-admin-badge<?= !empty($engine['is_default']) ? ' module-admin-badge--success' : '' ?>"><?= !empty($engine['is_default']) ? 'Ja' : 'Nein' ?></strong>
+          </div>
+        </div>
+        <div class="module-admin-actions">
+          <form method="post">
+            <input type="hidden" name="action" value="delete_search_engine">
+            <input type="hidden" name="engine_id" value="<?= (int) ($engine['id'] ?? 0) ?>">
+            <button class="module-button module-button--secondary module-button--small" type="submit">Löschen</button>
+          </form>
+        </div>
+      </article>
+    <?php endforeach; ?>
+  </div>
+</div></div></div>
diff --git a/partials/landingpages/users/settings_widgets.php b/partials/landingpages/users/settings_widgets.php
new file mode 100644
index 0000000..20bc75c
--- /dev/null
+++ b/partials/landingpages/users/settings_widgets.php
@@ -0,0 +1,130 @@
+<?php
+declare(strict_types=1);
+
+require_admin();
+
+$service = dashboards();
+$ownerKey = 'system';
+$notice = null;
+$error = null;
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $action = trim((string) ($_POST['action'] ?? ''));
+    try {
+        if ($action === 'create_widget') {
+            $service->createWidgetTemplate($ownerKey, [
+                'name' => trim((string) ($_POST['name'] ?? '')),
+                'widget_type' => trim((string) ($_POST['widget_type'] ?? 'link')),
+                'description' => trim((string) ($_POST['description'] ?? '')),
+                'visibility' => 'public',
+                'config' => [
+                    'url' => trim((string) ($_POST['target_url'] ?? '')),
+                    'bookmarks' => trim((string) ($_POST['bookmarks'] ?? '')),
+                ],
+            ]);
+            $notice = 'Widget-Vorlage gespeichert.';
+        } elseif ($action === 'delete_widget') {
+            $service->deleteWidgetTemplate((int) ($_POST['widget_id'] ?? 0), $ownerKey);
+            $notice = 'Widget-Vorlage gelöscht.';
+        }
+    } catch (\Throwable $exception) {
+        $error = $exception->getMessage();
+    }
+}
+
+$widgets = $service->listWidgetTemplates($ownerKey, true);
+
+$GLOBALS['layout_header_base_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_title'] = 'Nexus Setup';
+$GLOBALS['layout_header_context'] = 'Widgets';
+$GLOBALS['layout_header_text'] = 'Globale Widget-Vorlagen, die andere Nutzer in ihre Dashboards übernehmen können.';
+?>
+<div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">
+  <header class="module-hero submenu-box">
+    <div class="module-hero-top module-hero-top--compact">
+      <nav class="module-tabs" aria-label="Nexus Setup Navigation">
+        <a class="module-button module-button--tab" href="/settings">Allgemein</a>
+        <a class="module-button module-button--tab-active" href="/settings/widgets">Widgets</a>
+        <a class="module-button module-button--tab" href="/integrations">Integrationen</a>
+        <a class="module-button module-button--tab" href="/settings/search-engines">Suchmaschinen</a>
+        <a class="module-button module-button--tab" href="/settings/apps">Apps</a>
+        <a class="module-button module-button--tab" href="/dashboards">Dashboards</a>
+      </nav>
+      <div class="module-hero-actions module-submenu-actions">
+        <a class="module-button module-button--secondary module-button--small" href="/">Nexus Übersicht</a>
+      </div>
+    </div>
+  </header>
+
+  <?php if ($error !== null): ?>
+    <section class="section-box"><?= e($error) ?></section>
+  <?php elseif ($notice !== null): ?>
+    <section class="section-box"><?= e($notice) ?></section>
+  <?php endif; ?>
+
+  <section class="section-box">
+    <h2>Neue Widget-Vorlage</h2>
+    <form method="post" class="setup-form">
+      <input type="hidden" name="action" value="create_widget">
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Name</span>
+          <input type="text" name="name" required>
+        </label>
+        <label class="setup-field muted">
+          <span>Typ</span>
+          <select name="widget_type">
+            <option value="link">Link</option>
+            <option value="iframe">iFrame</option>
+            <option value="bookmark_group">Linkliste</option>
+          </select>
+        </label>
+      </div>
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Beschreibung</span>
+          <input type="text" name="description">
+        </label>
+        <label class="setup-field muted">
+          <span>Ziel-URL</span>
+          <input type="url" name="target_url" placeholder="https://...">
+        </label>
+      </div>
+      <div class="setup-grid">
+        <label class="setup-field muted">
+          <span>Linkliste optional</span>
+          <textarea name="bookmarks" rows="5" placeholder="Name | https://ziel.example&#10;Monitoring | https://grafana.example"></textarea>
+        </label>
+      </div>
+      <div class="setup-actions setup-actions--footer">
+        <button class="cta-button" type="submit">Widget speichern</button>
+      </div>
+    </form>
+  </section>
+
+  <div class="module-admin-grid">
+    <?php foreach ($widgets as $widget): ?>
+      <article class="card-box module-admin-card">
+        <div class="module-admin-card__head">
+          <div class="module-admin-card__title">
+            <h2><?= e((string) ($widget['name'] ?? 'Widget')) ?></h2>
+            <p><?= e((string) ($widget['description'] ?? 'Globale Widget-Vorlage.')) ?></p>
+          </div>
+        </div>
+        <div class="module-admin-meta">
+          <div class="module-admin-meta__item">
+            <span class="module-admin-meta__label">Typ</span>
+            <strong class="module-admin-badge"><?= e((string) ($widget['widget_type'] ?? 'link')) ?></strong>
+          </div>
+        </div>
+        <div class="module-admin-actions">
+          <form method="post">
+            <input type="hidden" name="action" value="delete_widget">
+            <input type="hidden" name="widget_id" value="<?= (int) ($widget['id'] ?? 0) ?>">
+            <button class="module-button module-button--secondary module-button--small" type="submit">Löschen</button>
+          </form>
+        </div>
+      </article>
+    <?php endforeach; ?>
+  </div>
+</div></div></div>
diff --git a/public/assets/css/app.css b/public/assets/css/app.css
index 7d5ecd7..669ee17 100644
--- a/public/assets/css/app.css
+++ b/public/assets/css/app.css
@@ -831,12 +831,26 @@ body.has-modal-open {
   align-content: start;
 }
 
+.dashboard-links {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+
 .dashboard-widget__meta p {
   margin: 0;
   color: var(--text-soft);
   word-break: break-word;
 }
 
+.dashboard-app-icon {
+  width: 42px;
+  height: 42px;
+  object-fit: cover;
+  border-radius: 12px;
+  border: 1px solid color-mix(in srgb, var(--border-soft) 85%, transparent);
+}
+
 .dashboard-widget__frame {
   width: 100%;
   min-height: 300px;
diff --git a/public/index.php b/public/index.php
index 677b07b..f3b9569 100755
--- a/public/index.php
+++ b/public/index.php
@@ -24,7 +24,7 @@ $publicPaths = [
     'auth/me',
     'module/pi_control/terminal_info',
 ];
-$requiresGlobalAuth = in_array($uriPath, ['settings', 'users', 'modules', 'modules/install', 'modules/sql-import', 'debug', 'exports/database.sql', 'dashboard', 'dashboards', 'integrations', 'page-modules'], true)
+$requiresGlobalAuth = in_array($uriPath, ['settings', 'settings/widgets', 'settings/search-engines', 'settings/apps', 'users', 'modules', 'modules/install', 'modules/sql-import', 'debug', 'exports/database.sql', 'dashboard', 'dashboards', 'integrations', 'page-modules'], true)
     || str_starts_with($uriPath, 'modules/setup/')
     || str_starts_with($uriPath, 'modules/access/');
 if (str_starts_with($uriPath, 'page-modules/view/')) {
@@ -275,6 +275,12 @@ if (str_starts_with($uriPath, 'modules/install')) {
     $target = $pagesBase . '/auth/logout.php';
 } elseif ($uriPath === 'settings') {
     $target = $pagesBase . '/users/settings.php';
+} elseif ($uriPath === 'settings/widgets') {
+    $target = $pagesBase . '/users/settings_widgets.php';
+} elseif ($uriPath === 'settings/search-engines') {
+    $target = $pagesBase . '/users/settings_search_engines.php';
+} elseif ($uriPath === 'settings/apps') {
+    $target = $pagesBase . '/users/settings_apps.php';
 } elseif ($uriPath === 'users') {
     $target = $pagesBase . '/users/index.php';
 } elseif ($uriPath === 'dashboard') {
diff --git a/src/App/BaseSchema.php b/src/App/BaseSchema.php
index f9310b6..b7a7cf3 100644
--- a/src/App/BaseSchema.php
+++ b/src/App/BaseSchema.php
@@ -230,6 +230,54 @@ final class BaseSchema
             )"
         );
         $pdo->exec("CREATE INDEX IF NOT EXISTS nexus_dashboard_shares_dashboard_idx ON nexus_dashboard_shares (dashboard_id, share_type, share_value)");
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_widget_templates (
+                id BIGSERIAL PRIMARY KEY,
+                owner_key TEXT NOT NULL,
+                name TEXT NOT NULL,
+                widget_type TEXT NOT NULL,
+                description TEXT NULL,
+                visibility TEXT NOT NULL DEFAULT 'private',
+                config TEXT NOT NULL DEFAULT '{}',
+                created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+                updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+            )"
+        );
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_search_engines (
+                id BIGSERIAL PRIMARY KEY,
+                owner_key TEXT NOT NULL,
+                name TEXT NOT NULL,
+                short_code TEXT NOT NULL,
+                engine_type TEXT NOT NULL DEFAULT 'template',
+                template_url TEXT NULL,
+                integration_id BIGINT NULL,
+                visibility TEXT NOT NULL DEFAULT 'private',
+                is_default BOOLEAN NOT NULL DEFAULT false,
+                config TEXT NOT NULL DEFAULT '{}',
+                created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+                updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+            )"
+        );
+        $pdo->exec("CREATE UNIQUE INDEX IF NOT EXISTS nexus_search_engines_owner_short_idx ON nexus_search_engines (owner_key, short_code)");
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_apps (
+                id BIGSERIAL PRIMARY KEY,
+                owner_key TEXT NOT NULL,
+                name TEXT NOT NULL,
+                description TEXT NULL,
+                app_url TEXT NOT NULL,
+                icon_url TEXT NULL,
+                integration_id BIGINT NULL,
+                visibility TEXT NOT NULL DEFAULT 'private',
+                config TEXT NOT NULL DEFAULT '{}',
+                created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+                updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+            )"
+        );
     }
 
     private static function ensureSqlite(\PDO $pdo): void
@@ -440,6 +488,54 @@ final class BaseSchema
             )"
         );
         $pdo->exec("CREATE INDEX IF NOT EXISTS nexus_dashboard_shares_dashboard_idx ON nexus_dashboard_shares (dashboard_id, share_type, share_value)");
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_widget_templates (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                owner_key TEXT NOT NULL,
+                name TEXT NOT NULL,
+                widget_type TEXT NOT NULL,
+                description TEXT NULL,
+                visibility TEXT NOT NULL DEFAULT 'private',
+                config TEXT NOT NULL DEFAULT '{}',
+                created_at TEXT NOT NULL DEFAULT (datetime('now')),
+                updated_at TEXT NOT NULL DEFAULT (datetime('now'))
+            )"
+        );
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_search_engines (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                owner_key TEXT NOT NULL,
+                name TEXT NOT NULL,
+                short_code TEXT NOT NULL,
+                engine_type TEXT NOT NULL DEFAULT 'template',
+                template_url TEXT NULL,
+                integration_id INTEGER NULL,
+                visibility TEXT NOT NULL DEFAULT 'private',
+                is_default INTEGER NOT NULL DEFAULT 0,
+                config TEXT NOT NULL DEFAULT '{}',
+                created_at TEXT NOT NULL DEFAULT (datetime('now')),
+                updated_at TEXT NOT NULL DEFAULT (datetime('now'))
+            )"
+        );
+        $pdo->exec("CREATE UNIQUE INDEX IF NOT EXISTS nexus_search_engines_owner_short_idx ON nexus_search_engines (owner_key, short_code)");
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_apps (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                owner_key TEXT NOT NULL,
+                name TEXT NOT NULL,
+                description TEXT NULL,
+                app_url TEXT NOT NULL,
+                icon_url TEXT NULL,
+                integration_id INTEGER NULL,
+                visibility TEXT NOT NULL DEFAULT 'private',
+                config TEXT NOT NULL DEFAULT '{}',
+                created_at TEXT NOT NULL DEFAULT (datetime('now')),
+                updated_at TEXT NOT NULL DEFAULT (datetime('now'))
+            )"
+        );
     }
 
     private static function ensureGeneric(\PDO $pdo): void
@@ -650,6 +746,54 @@ final class BaseSchema
                 KEY nexus_dashboard_shares_dashboard_idx (dashboard_id, share_type, share_value)
             )"
         );
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_widget_templates (
+                id BIGINT AUTO_INCREMENT PRIMARY KEY,
+                owner_key VARCHAR(190) NOT NULL,
+                name VARCHAR(255) NOT NULL,
+                widget_type VARCHAR(64) NOT NULL,
+                description TEXT NULL,
+                visibility VARCHAR(32) NOT NULL DEFAULT 'private',
+                config TEXT NOT NULL,
+                created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+            )"
+        );
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_search_engines (
+                id BIGINT AUTO_INCREMENT PRIMARY KEY,
+                owner_key VARCHAR(190) NOT NULL,
+                name VARCHAR(255) NOT NULL,
+                short_code VARCHAR(64) NOT NULL,
+                engine_type VARCHAR(32) NOT NULL DEFAULT 'template',
+                template_url TEXT NULL,
+                integration_id BIGINT NULL,
+                visibility VARCHAR(32) NOT NULL DEFAULT 'private',
+                is_default TINYINT NOT NULL DEFAULT 0,
+                config TEXT NOT NULL,
+                created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                UNIQUE KEY nexus_search_engines_owner_short_idx (owner_key, short_code)
+            )"
+        );
+
+        $pdo->exec(
+            "CREATE TABLE IF NOT EXISTS nexus_apps (
+                id BIGINT AUTO_INCREMENT PRIMARY KEY,
+                owner_key VARCHAR(190) NOT NULL,
+                name VARCHAR(255) NOT NULL,
+                description TEXT NULL,
+                app_url TEXT NOT NULL,
+                icon_url TEXT NULL,
+                integration_id BIGINT NULL,
+                visibility VARCHAR(32) NOT NULL DEFAULT 'private',
+                config TEXT NOT NULL,
+                created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+            )"
+        );
     }
 
     private static function seedTimezones(\PDO $pdo): void
diff --git a/src/App/NexusDashboardService.php b/src/App/NexusDashboardService.php
index 2b6d473..eb72193 100644
--- a/src/App/NexusDashboardService.php
+++ b/src/App/NexusDashboardService.php
@@ -108,6 +108,64 @@ final class NexusDashboardService
         return $rows;
     }
 
+    public function resolveHomeDashboard(?string $ownerKey, array $groups, bool $authenticated, int $preferredId = 0): ?array
+    {
+        if (!$this->available()) {
+            return null;
+        }
+
+        if ($authenticated && $ownerKey !== null && $ownerKey !== '') {
+            if ($preferredId > 0) {
+                $preferred = $this->getDashboardById($preferredId);
+                if ($preferred !== null && $this->canAccessDashboard($preferred, $ownerKey, $groups)) {
+                    return $preferred;
+                }
+            }
+
+            $dashboards = $this->listAccessibleDashboards($ownerKey, $groups);
+            foreach ($dashboards as $dashboard) {
+                if (!empty($dashboard['is_default']) && $this->canAccessDashboard($dashboard, $ownerKey, $groups)) {
+                    return $dashboard;
+                }
+            }
+            foreach ($dashboards as $dashboard) {
+                if ($this->canAccessDashboard($dashboard, $ownerKey, $groups)) {
+                    return $dashboard;
+                }
+            }
+        }
+
+        $publicId = (int) (($this->settings()['global_home_dashboard_id'] ?? 0));
+        if ($publicId > 0) {
+            $dashboard = $this->getDashboardById($publicId);
+            if ($dashboard !== null && (string) ($dashboard['visibility'] ?? '') === 'public') {
+                return $dashboard;
+            }
+        }
+
+        foreach ($this->listPublicDashboards() as $dashboard) {
+            return $dashboard;
+        }
+
+        return null;
+    }
+
+    public function listPublicDashboards(): array
+    {
+        if (!$this->available()) {
+            return [];
+        }
+
+        $stmt = $this->pdo->prepare(
+            "SELECT *
+             FROM nexus_dashboards
+             WHERE visibility = 'public'
+             ORDER BY is_default DESC, sort_order ASC, title ASC, id ASC"
+        );
+        $stmt->execute();
+        return $this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []);
+    }
+
     public function getDashboardById(int $id): ?array
     {
         if (!$this->available() || $id <= 0) {
@@ -397,6 +455,63 @@ final class NexusDashboardService
         return $this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []);
     }
 
+    public function listAccessiblePageModules(string $ownerKey, array $groups = []): array
+    {
+        if (!$this->available()) {
+            return [];
+        }
+
+        $rows = [];
+        $seen = [];
+        foreach ($this->listPageModulesForOwner($ownerKey) as $module) {
+            $id = (int) ($module['id'] ?? 0);
+            if ($id > 0) {
+                $rows[] = $module;
+                $seen[$id] = true;
+            }
+        }
+
+        $stmt = $this->pdo->prepare(
+            "SELECT *
+             FROM nexus_page_modules
+             WHERE visibility = 'public'
+             ORDER BY title ASC, id ASC"
+        );
+        $stmt->execute();
+        foreach ($this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []) as $module) {
+            $id = (int) ($module['id'] ?? 0);
+            if ($id > 0 && !isset($seen[$id])) {
+                $rows[] = $module;
+                $seen[$id] = true;
+            }
+        }
+
+        foreach ($groups as $group) {
+            $group = trim((string) $group);
+            if ($group === '') {
+                continue;
+            }
+            $stmt = $this->pdo->prepare(
+                "SELECT *
+                 FROM nexus_page_modules
+                 WHERE visibility = 'group'"
+            );
+            $stmt->execute();
+            foreach ($this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []) as $module) {
+                $id = (int) ($module['id'] ?? 0);
+                if ($id <= 0 || isset($seen[$id])) {
+                    continue;
+                }
+                if (in_array($group, (array) ($module['config']['groups'] ?? []), true)) {
+                    $rows[] = $module;
+                    $seen[$id] = true;
+                }
+            }
+        }
+
+        return $rows;
+    }
+
     public function createPageModule(string $ownerKey, array $data): int
     {
         if (!$this->available() || $ownerKey === '') {
@@ -466,6 +581,233 @@ final class NexusDashboardService
         return null;
     }
 
+    public function listWidgetTemplates(string $ownerKey, bool $includePublic = true): array
+    {
+        if (!$this->available()) {
+            return [];
+        }
+
+        $clauses = [];
+        $params = [];
+        if ($ownerKey !== '') {
+            $clauses[] = 'owner_key = :owner_key';
+            $params['owner_key'] = $ownerKey;
+        }
+        if ($includePublic) {
+            $clauses[] = "visibility = 'public'";
+        }
+        if ($clauses === []) {
+            return [];
+        }
+
+        $stmt = $this->pdo->prepare(
+            'SELECT * FROM nexus_widget_templates WHERE ' . implode(' OR ', $clauses) . ' ORDER BY name ASC, id ASC'
+        );
+        $stmt->execute($params);
+
+        $rows = [];
+        $seen = [];
+        foreach ($this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []) as $row) {
+            $id = (int) ($row['id'] ?? 0);
+            if ($id > 0 && !isset($seen[$id])) {
+                $rows[] = $row;
+                $seen[$id] = true;
+            }
+        }
+        return $rows;
+    }
+
+    public function createWidgetTemplate(string $ownerKey, array $data): int
+    {
+        if (!$this->available() || $ownerKey === '') {
+            return 0;
+        }
+
+        $stmt = $this->pdo->prepare(
+            "INSERT INTO nexus_widget_templates
+                (owner_key, name, widget_type, description, visibility, config, created_at, updated_at)
+             VALUES
+                (:owner_key, :name, :widget_type, :description, :visibility, :config, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)"
+        );
+        $stmt->execute([
+            'owner_key' => $ownerKey,
+            'name' => trim((string) ($data['name'] ?? '')) ?: 'Widget',
+            'widget_type' => $this->normalizeItemType((string) ($data['widget_type'] ?? 'link')),
+            'description' => trim((string) ($data['description'] ?? '')),
+            'visibility' => $this->normalizeVisibility((string) ($data['visibility'] ?? 'private')),
+            'config' => $this->encodeJson((array) ($data['config'] ?? [])),
+        ]);
+
+        return (int) $this->pdo->lastInsertId();
+    }
+
+    public function deleteWidgetTemplate(int $id, string $ownerKey): void
+    {
+        if (!$this->available() || $id <= 0 || $ownerKey === '') {
+            return;
+        }
+
+        $stmt = $this->pdo->prepare("DELETE FROM nexus_widget_templates WHERE id = :id AND owner_key = :owner_key");
+        $stmt->execute(['id' => $id, 'owner_key' => $ownerKey]);
+    }
+
+    public function listSearchEngines(string $ownerKey, bool $includePublic = true): array
+    {
+        if (!$this->available()) {
+            return [];
+        }
+
+        $clauses = [];
+        $params = [];
+        if ($ownerKey !== '') {
+            $clauses[] = 'owner_key = :owner_key';
+            $params['owner_key'] = $ownerKey;
+        }
+        if ($includePublic) {
+            $clauses[] = "visibility = 'public'";
+        }
+        $stmt = $this->pdo->prepare(
+            'SELECT * FROM nexus_search_engines WHERE ' . implode(' OR ', $clauses) . ' ORDER BY is_default DESC, name ASC, id ASC'
+        );
+        $stmt->execute($params);
+
+        $rows = [];
+        $seen = [];
+        foreach ($this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []) as $row) {
+            $id = (int) ($row['id'] ?? 0);
+            if ($id > 0 && !isset($seen[$id])) {
+                $rows[] = $row;
+                $seen[$id] = true;
+            }
+        }
+        return $rows;
+    }
+
+    public function createSearchEngine(string $ownerKey, array $data): int
+    {
+        if (!$this->available() || $ownerKey === '') {
+            return 0;
+        }
+
+        $shortCode = $this->normalizeShortCode((string) ($data['short_code'] ?? ''));
+        if ($shortCode === '') {
+            $shortCode = 's' . random_int(100, 999);
+        }
+        $shortCode = $this->uniqueSearchShortCode($ownerKey, $shortCode, 0);
+
+        $stmt = $this->pdo->prepare(
+            "INSERT INTO nexus_search_engines
+                (owner_key, name, short_code, engine_type, template_url, integration_id, visibility, is_default, config, created_at, updated_at)
+             VALUES
+                (:owner_key, :name, :short_code, :engine_type, :template_url, :integration_id, :visibility, :is_default, :config, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)"
+        );
+        $stmt->execute([
+            'owner_key' => $ownerKey,
+            'name' => trim((string) ($data['name'] ?? '')) ?: 'Suche',
+            'short_code' => $shortCode,
+            'engine_type' => trim((string) ($data['engine_type'] ?? 'template')) ?: 'template',
+            'template_url' => trim((string) ($data['template_url'] ?? '')),
+            'integration_id' => !empty($data['integration_id']) ? (int) $data['integration_id'] : null,
+            'visibility' => $this->normalizeVisibility((string) ($data['visibility'] ?? 'private')),
+            'is_default' => !empty($data['is_default']) ? 1 : 0,
+            'config' => $this->encodeJson((array) ($data['config'] ?? [])),
+        ]);
+        $id = (int) $this->pdo->lastInsertId();
+        if (!empty($data['is_default'])) {
+            $this->setDefaultSearchEngine($ownerKey, $id);
+        }
+        return $id;
+    }
+
+    public function setDefaultSearchEngine(string $ownerKey, int $id): void
+    {
+        if (!$this->available() || $ownerKey === '' || $id <= 0) {
+            return;
+        }
+        $stmt = $this->pdo->prepare("UPDATE nexus_search_engines SET is_default = 0, updated_at = CURRENT_TIMESTAMP WHERE owner_key = :owner_key");
+        $stmt->execute(['owner_key' => $ownerKey]);
+        $stmt = $this->pdo->prepare("UPDATE nexus_search_engines SET is_default = 1, updated_at = CURRENT_TIMESTAMP WHERE id = :id AND owner_key = :owner_key");
+        $stmt->execute(['id' => $id, 'owner_key' => $ownerKey]);
+    }
+
+    public function deleteSearchEngine(int $id, string $ownerKey): void
+    {
+        if (!$this->available() || $id <= 0 || $ownerKey === '') {
+            return;
+        }
+
+        $stmt = $this->pdo->prepare("DELETE FROM nexus_search_engines WHERE id = :id AND owner_key = :owner_key");
+        $stmt->execute(['id' => $id, 'owner_key' => $ownerKey]);
+    }
+
+    public function listApps(string $ownerKey, bool $includePublic = true): array
+    {
+        if (!$this->available()) {
+            return [];
+        }
+
+        $clauses = [];
+        $params = [];
+        if ($ownerKey !== '') {
+            $clauses[] = 'owner_key = :owner_key';
+            $params['owner_key'] = $ownerKey;
+        }
+        if ($includePublic) {
+            $clauses[] = "visibility = 'public'";
+        }
+        $stmt = $this->pdo->prepare(
+            'SELECT * FROM nexus_apps WHERE ' . implode(' OR ', $clauses) . ' ORDER BY name ASC, id ASC'
+        );
+        $stmt->execute($params);
+
+        $rows = [];
+        $seen = [];
+        foreach ($this->hydrateRows($stmt->fetchAll(\PDO::FETCH_ASSOC) ?: []) as $row) {
+            $id = (int) ($row['id'] ?? 0);
+            if ($id > 0 && !isset($seen[$id])) {
+                $rows[] = $row;
+                $seen[$id] = true;
+            }
+        }
+        return $rows;
+    }
+
+    public function createApp(string $ownerKey, array $data): int
+    {
+        if (!$this->available() || $ownerKey === '') {
+            return 0;
+        }
+
+        $stmt = $this->pdo->prepare(
+            "INSERT INTO nexus_apps
+                (owner_key, name, description, app_url, icon_url, integration_id, visibility, config, created_at, updated_at)
+             VALUES
+                (:owner_key, :name, :description, :app_url, :icon_url, :integration_id, :visibility, :config, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)"
+        );
+        $stmt->execute([
+            'owner_key' => $ownerKey,
+            'name' => trim((string) ($data['name'] ?? '')) ?: 'App',
+            'description' => trim((string) ($data['description'] ?? '')),
+            'app_url' => trim((string) ($data['app_url'] ?? '')),
+            'icon_url' => trim((string) ($data['icon_url'] ?? '')),
+            'integration_id' => !empty($data['integration_id']) ? (int) $data['integration_id'] : null,
+            'visibility' => $this->normalizeVisibility((string) ($data['visibility'] ?? 'private')),
+            'config' => $this->encodeJson((array) ($data['config'] ?? [])),
+        ]);
+
+        return (int) $this->pdo->lastInsertId();
+    }
+
+    public function deleteApp(int $id, string $ownerKey): void
+    {
+        if (!$this->available() || $id <= 0 || $ownerKey === '') {
+            return;
+        }
+
+        $stmt = $this->pdo->prepare("DELETE FROM nexus_apps WHERE id = :id AND owner_key = :owner_key");
+        $stmt->execute(['id' => $id, 'owner_key' => $ownerKey]);
+    }
+
     private function listSharedDashboardIds(string $ownerKey, array $groups): array
     {
         $result = [];
@@ -566,7 +908,7 @@ final class NexusDashboardService
     private function normalizeItemType(string $value): string
     {
         $value = trim($value);
-        return in_array($value, ['link', 'iframe', 'page_module', 'bookmark_group', 'module_link'], true) ? $value : 'link';
+        return in_array($value, ['link', 'iframe', 'page_module', 'bookmark_group', 'module_link', 'app', 'widget_template'], true) ? $value : 'link';
     }
 
     private function normalizePageModuleType(string $value): string
@@ -625,4 +967,59 @@ final class NexusDashboardService
         }
         return (int) $value;
     }
+
+    private function settings(): array
+    {
+        return function_exists('nexus_settings') ? nexus_settings() : [];
+    }
+
+    private function canAccessDashboard(array $dashboard, string $ownerKey, array $groups): bool
+    {
+        if ((string) ($dashboard['owner_key'] ?? '') === $ownerKey) {
+            return true;
+        }
+        $visibility = (string) ($dashboard['visibility'] ?? 'private');
+        if ($visibility === 'public') {
+            return true;
+        }
+        if ($visibility === 'group') {
+            $sharedIds = $this->listSharedDashboardIds($ownerKey, $groups);
+            return in_array((int) ($dashboard['id'] ?? 0), $sharedIds, true);
+        }
+        return false;
+    }
+
+    private function normalizeShortCode(string $value): string
+    {
+        $value = strtolower(trim($value));
+        $value = preg_replace('/[^a-z0-9_-]+/', '', $value) ?? '';
+        return substr($value, 0, 24);
+    }
+
+    private function uniqueSearchShortCode(string $ownerKey, string $candidate, int $ignoreId): string
+    {
+        $shortCode = $candidate;
+        $suffix = 1;
+        while ($this->searchShortCodeExists($ownerKey, $shortCode, $ignoreId)) {
+            $suffix++;
+            $shortCode = substr($candidate, 0, 20) . $suffix;
+        }
+        return $shortCode;
+    }
+
+    private function searchShortCodeExists(string $ownerKey, string $shortCode, int $ignoreId): bool
+    {
+        $sql = "SELECT id FROM nexus_search_engines WHERE owner_key = :owner_key AND short_code = :short_code";
+        if ($ignoreId > 0) {
+            $sql .= " AND id <> :id";
+        }
+        $sql .= " LIMIT 1";
+        $stmt = $this->pdo->prepare($sql);
+        $params = ['owner_key' => $ownerKey, 'short_code' => $shortCode];
+        if ($ignoreId > 0) {
+            $params['id'] = $ignoreId;
+        }
+        $stmt->execute($params);
+        return (bool) $stmt->fetchColumn();
+    }
 }