diff --git a/modules/pi_control/bootstrap.php b/modules/pi_control/bootstrap.php
index 127b161..abb9804 100644
--- a/modules/pi_control/bootstrap.php
+++ b/modules/pi_control/bootstrap.php
@@ -101,4 +101,48 @@ $mm->registerFunction($moduleName, 'ensure_schema', function () use ($moduleName
             created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
         )");
     }
+
+    // Seed default commands (only when empty)
+    $count = (int)$pdo->query('SELECT COUNT(*) FROM ' . $cmdTable)->fetchColumn();
+    if ($count === 0) {
+        $defaults = [
+            ['Speicherplatz auf Dateisystem', 'df -T -h', false],
+            ['Netzwerkdaten', 'ip -s addr show', false],
+            ['CPU-Information', 'cat /proc/cpuinfo', false],
+            ['Informationen über USB-Bus', 'lsusb', false],
+            ['Uptime', 'uptime -p', false],
+            ['Scannen Sie einen I2C-Bus nach Geräten', '/usr/sbin/i2cdetect -y 1', true],
+            ['Prozesse (Gib zum Beenden \"q\" ein)', 'top', false],
+            ['SSH status', 'systemctl status ssh', false],
+            ['Konfigurationsprogramm in Raspberry OS', 'sudo raspi-config', true],
+            ['Pinbelegung', 'pinout', false],
+            ['Exportiere GPIO (Für Nutzung vorbereiten)', 'echo 22 > /sys/class/gpio/export', true],
+            ['Lese GPIO-Wert', 'echo in > /sys/class/gpio/gpio22/direction && cat /sys/class/gpio/gpio22/value', true],
+            ['Schreibe \"Low\" GPIO Wert', 'echo out > /sys/class/gpio/gpio22/direction && echo 0 > /sys/class/gpio/gpio22/value', true],
+            ['Schreibe \"High\" GPIO Wert', 'echo out > /sys/class/gpio/gpio22/direction && echo 1 > /sys/class/gpio/gpio22/value', true],
+            ['Export entfernen (Ressource freigeben)', 'echo 22 > /sys/class/gpio/unexport', true],
+            ['Alternative Funktionen von GPIO', 'raspi-gpio funcs', false],
+            ['Gerät herunterfahren', 'sudo systemctl poweroff', true],
+            ['Gerät neu starten', 'sudo systemctl reboot', true],
+            ['Aktualisiere die Betriebssystem-Pakete', 'sudo apt update && sudo apt full-upgrade', true],
+            ['Befehle, die zuvor ausgeführt wurden (Quellsprache)', 'history 30', false],
+            ['Liste der zuletzt angemeldeten Nutzer', 'last -30 -F', false],
+            ['Liste der aktuell angemeldeten Nutzer', 'w', false],
+            ['Aktualisierung', 'sudo apt update && sudo apt upgrade -y && sudo apt-get autoremove --purge && sudo apt-get clean && sudo rm -rf /var/lib/apt/lists/* && sudo apt-get update && sudo apt-get remove texlive-*-doc', true],
+            ['Update OS', 'sudo apt update && sudo apt full-upgrade -y && sudo apt-get autoremove --purge && sudo apt-get clean && sudo rm -rf /var/lib/apt/lists/* && sudo apt-get update && sudo apt-get remove texlive-*-doc', true],
+            ['Paketlisten laden', 'sudo apt-get update; sudo apt-get dist-upgrade -y;exit', true],
+            ['Gerät herunterfahren', 'sudo /sbin/shutdown -h now', true],
+            ['Gerät neu starten', 'sudo /sbin/reboot', true],
+        ];
+
+        $stmt = $pdo->prepare(
+            'INSERT INTO ' . $cmdTable . ' (label, command, admin_only) VALUES (:label, :command, :admin_only)'
+        );
+        foreach ($defaults as [$label, $command, $adminOnly]) {
+            $stmt->bindValue(':label', $label, PDO::PARAM_STR);
+            $stmt->bindValue(':command', $command, PDO::PARAM_STR);
+            $stmt->bindValue(':admin_only', (bool)$adminOnly, PDO::PARAM_BOOL);
+            $stmt->execute();
+        }
+    }
 });
diff --git a/public/assets/css/app.css b/public/assets/css/app.css
index 94e978d..9d423a7 100644
--- a/public/assets/css/app.css
+++ b/public/assets/css/app.css
@@ -141,6 +141,7 @@ body {
   box-shadow: var(--shadow);
   border-radius: 18px;
 }
+.module-subnav.card { background: var(--panel); }
 
 .layout-body {
   display: grid;
@@ -148,6 +149,7 @@ body {
   gap: 16px;
   padding: 6px 24px 24px;
   transition: grid-template-columns 260ms ease;
+  position: relative;
 }
 .layout-body.sidebar-open {
   grid-template-columns: 260px 1fr;
@@ -166,6 +168,18 @@ body {
   pointer-events: none;
   transition: transform 260ms ease, opacity 260ms ease;
 }
+.layout-body.sidebar-collapsed .sidebar {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 240px;
+  max-height: 0;
+  padding: 0;
+  margin: 0;
+  border: 0;
+  box-shadow: none;
+  overflow: hidden;
+}
 .layout-body.sidebar-open .sidebar {
   transform: translateX(0);
   opacity: 1;