diff --git a/setup-kunde.sh b/setup-kunde.sh
new file mode 100644
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--- /dev/null
+++ b/setup-kunde.sh
@@ -0,0 +1,210 @@
+#!/bin/bash
+# ============================================
+# PlusFit24 – Neuen Kunden einrichten
+# Verwendung: ./setup-kunde.sh <kundenname>
+# Beispiel:   ./setup-kunde.sh fitnessstudio-berlin
+# ============================================
+
+set -e
+
+# ---- Parameter prüfen ----
+if [ -z "$1" ]; then
+  echo "❌ Verwendung: ./setup-kunde.sh <kundenname>"
+  echo "   Beispiel:  ./setup-kunde.sh fitnessstudio-berlin"
+  exit 1
+fi
+
+KUNDE=$1
+APP_DIR="/opt/apps/$KUNDE"
+DB_NAME=$(echo $KUNDE | tr '-' '_' | tr '.' '_')
+SERVICE_NAME=$KUNDE
+
+# ---- Nächsten freien Port finden ----
+START_PORT=3100
+PORT=$START_PORT
+
+echo "🔍 Suche freien Port ab $START_PORT..."
+while true; do
+  # Prüfen ob Port in einer .env Datei schon verwendet wird
+  PORT_IN_USE=$(grep -r "^PORT=$PORT$" /opt/apps/*/env 2>/dev/null || \
+                grep -r "^PORT=$PORT$" /opt/apps/*/.env 2>/dev/null || true)
+  # Prüfen ob Port wirklich offen ist
+  if [ -z "$PORT_IN_USE" ] && ! ss -tlnp | grep -q ":$PORT "; then
+    echo "✅ Freier Port gefunden: $PORT"
+    break
+  fi
+  PORT=$((PORT + 1))
+  if [ $PORT -gt 3200 ]; then
+    echo "❌ Kein freier Port zwischen 3100 und 3200 gefunden!"
+    exit 1
+  fi
+done
+
+echo ""
+echo "================================================"
+echo " PlusFit24 – Kunde einrichten"
+echo " Kunde:    $KUNDE"
+echo " Port:     $PORT  (automatisch gewählt)"
+echo " Ordner:   $APP_DIR"
+echo " DB:       $DB_NAME"
+echo "================================================"
+echo ""
+
+# ---- Prüfen ob Kunde bereits existiert ----
+if [ -d "$APP_DIR" ]; then
+  echo "❌ Ordner $APP_DIR existiert bereits!"
+  exit 1
+fi
+
+# ---- Zugangsdaten abfragen ----
+read -p "DB Root Passwort (MariaDB):              " DB_ROOT_PW
+read -p "DB User Passwort (wird neu erstellt):    " DB_USER_PW
+read -p "Admin Benutzername:                      " ADMIN_USER
+read -p "Admin Passwort:                          " ADMIN_PW
+read -p "E-Mail Absender (Ionos):                 " MAIL_USER
+read -p "E-Mail Passwort:                         " MAIL_PW
+read -p "Domain (z.B. kunde.software-joksch.com): " DOMAIN
+read -p "Studio-Name (für E-Mails):               " STUDIO_NAME
+
+echo ""
+echo "▶ Starte Einrichtung für '$KUNDE' auf Port $PORT..."
+echo ""
+
+# ---- 1. App-Ordner kopieren ----
+echo "[1/7] 📁 Kopiere App-Dateien..."
+cp -r /opt/apps/Vertragsverwaltung_Plusfit24 $APP_DIR
+rm -f $APP_DIR/.env
+rm -f $APP_DIR/setup-kunde.sh
+
+# ---- 2. Datenbank erstellen ----
+echo "[2/7] 🗄️  Erstelle Datenbank und User..."
+mysql -h 85.215.63.122 -u root -p"$DB_ROOT_PW" << SQL
+CREATE DATABASE IF NOT EXISTS \`$DB_NAME\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+CREATE USER IF NOT EXISTS '${DB_NAME}'@'192.168.0.163' IDENTIFIED BY '${DB_USER_PW}';
+GRANT ALL PRIVILEGES ON \`${DB_NAME}\`.* TO '${DB_NAME}'@'192.168.0.163';
+FLUSH PRIVILEGES;
+SQL
+
+echo "[3/7] 📋 Erstelle Tabellen..."
+mysql -h 85.215.63.122 -u root -p"$DB_ROOT_PW" $DB_NAME < $APP_DIR/database/schema.sql
+for f in billing_migration finance_migration nfc_migration renewal_migration \
+          agreed_price_migration startpackage_migration confirmation_migration; do
+  mysql -h 85.215.63.122 -u root -p"$DB_ROOT_PW" $DB_NAME < $APP_DIR/database/${f}.sql 2>/dev/null || true
+done
+
+# ---- 3. .env erstellen ----
+echo "[4/7] ⚙️  Erstelle Konfiguration..."
+SESSION_SECRET=$(node -e "console.log(require('crypto').randomBytes(48).toString('hex'))")
+
+cat > $APP_DIR/.env << ENV
+# Datenbank
+DB_HOST=85.215.63.122
+DB_PORT=3306
+DB_USER=${DB_NAME}
+DB_PASSWORD=${DB_USER_PW}
+DB_NAME=${DB_NAME}
+
+# Session
+SESSION_SECRET=${SESSION_SECRET}
+
+# Admin
+ADMIN_USER=${ADMIN_USER}
+ADMIN_PASSWORD=${ADMIN_PW}
+
+# App
+PORT=${PORT}
+APP_URL=https://${DOMAIN}
+
+# E-Mail (Ionos)
+MAIL_HOST=smtp.ionos.de
+MAIL_PORT=587
+MAIL_SECURE=false
+MAIL_USER=${MAIL_USER}
+MAIL_PASSWORD=${MAIL_PW}
+MAIL_FROM=${STUDIO_NAME} <${MAIL_USER}>
+ENV
+
+# ---- 4. npm install ----
+echo "[5/7] 📦 Installiere Abhängigkeiten..."
+cd $APP_DIR && npm install --silent
+
+# ---- 5. Systemd Service erstellen ----
+echo "[6/7] 🔧 Erstelle und starte Service..."
+cat > /etc/systemd/system/${SERVICE_NAME}.service << SERVICE
+[Unit]
+Description=${STUDIO_NAME} – PlusFit24 App
+After=network.target
+
+[Service]
+Type=simple
+User=root
+WorkingDirectory=${APP_DIR}
+ExecStart=/usr/bin/node ${APP_DIR}/app.js
+Restart=always
+RestartSec=10
+Environment=NODE_ENV=production
+
+[Install]
+WantedBy=multi-user.target
+SERVICE
+
+systemctl daemon-reload
+systemctl enable $SERVICE_NAME
+systemctl start $SERVICE_NAME
+
+# ---- 6. NGINX Config erstellen ----
+echo "[7/7] 🌐 Erstelle NGINX Konfiguration..."
+NGINX_CONF="/etc/nginx/sites-available/$DOMAIN"
+cat > $NGINX_CONF << NGINX
+server {
+    listen 443 ssl http2;
+    server_name ${DOMAIN};
+
+    ssl_certificate     /etc/nginx/ssl/fullchain.pem;
+    ssl_certificate_key /etc/nginx/ssl/software-joksch.com.key;
+
+    client_max_body_size 10M;
+
+    location / {
+        proxy_pass http://192.168.0.163:${PORT};
+        proxy_set_header Host              \$host;
+        proxy_set_header X-Real-IP         \$remote_addr;
+        proxy_set_header X-Forwarded-For   \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto https;
+        proxy_set_header Upgrade           \$http_upgrade;
+        proxy_set_header Connection        "upgrade";
+        proxy_redirect   off;
+        proxy_read_timeout 3600;
+    }
+}
+NGINX
+
+# ---- 7. Ergebnis ----
+sleep 3
+echo ""
+if systemctl is-active --quiet $SERVICE_NAME; then
+  STATUS="✅ LÄUFT"
+else
+  STATUS="❌ FEHLER"
+fi
+
+echo "================================================"
+echo " $STATUS – $STUDIO_NAME"
+echo "================================================"
+echo " 🌐 URL:       https://$DOMAIN"
+echo " 🔑 Admin:     https://$DOMAIN/admin/login"
+echo " 👤 Benutzer:  $ADMIN_USER"
+echo " 🔌 Port:      $PORT"
+echo " 🗄️  Datenbank: $DB_NAME"
+echo " 📁 Ordner:    $APP_DIR"
+echo "================================================"
+echo ""
+echo "⚠️  Noch auf dem NGINX-Server ausführen:"
+echo "   ssh user@192.168.0.157"
+echo "   ln -s $NGINX_CONF /etc/nginx/sites-enabled/"
+echo "   nginx -t && systemctl reload nginx"
+echo ""
+
+# Port-Übersicht speichern
+echo "$PORT $KUNDE $DOMAIN" >> /opt/apps/ports.txt
+echo "📋 Port-Übersicht gespeichert in /opt/apps/ports.txt"