diff --git a/ops/restore-tests/README.md b/ops/restore-tests/README.md
index 0b9bf8f..e72ce9d 100644
--- a/ops/restore-tests/README.md
+++ b/ops/restore-tests/README.md
@@ -42,6 +42,9 @@ Ziel:
 - `authelia-compose.test.yml`: isolierte Testinstanz fuer Authelia inkl. Test-Postgres, Filesystem-Notifier (kein echter SMTP-Versand)
 - `authelia-plan.md`: konkreter Authelia-Testplan
 - `authelia-runbook.md`: Operator-Runbook fuer den ersten Authelia-Lauf
+- `nextcloud-restore-test.sh`: Nextcloud-Restore-Job (Scaffold; Erstlauf noch offen)
+- `nextcloud-compose.test.yml`: isolierte Testinstanz fuer Nextcloud inkl. Test-Postgres und Test-Redis
+
 - `check-restore-freshness.ps1`: woechentlicher Frische-Check fuer Dumps und Reports
 - `run-restore-checks.ps1`: einfacher Dispatcher fuer Restore-Jobs
 - `check-restore-freshness.sh`: hosttauglicher Frische-Check
diff --git a/ops/restore-tests/nextcloud-compose.test.yml b/ops/restore-tests/nextcloud-compose.test.yml
new file mode 100644
index 0000000..c75f204
--- /dev/null
+++ b/ops/restore-tests/nextcloud-compose.test.yml
@@ -0,0 +1,61 @@
+services:
+  restoretest-nextcloud-postgres:
+    # Gleiche Major-Version wie apps/nextcloud/docker-compose.yml in Produktion.
+    image: postgres:18.4@sha256:8ff36f3c66371cba71d20ceedccfc3de9669a68737607888c4ef0af93abe8e39
+    container_name: restoretest-nextcloud-postgres
+    restart: "no"
+    environment:
+      TZ: Europe/Berlin
+      POSTGRES_DB: nextcloud
+      POSTGRES_USER: nextcloud
+      POSTGRES_PASSWORD: restoretest-nextcloud-db
+      PGDATA: /var/lib/postgresql/18/docker
+    volumes:
+      - /mnt/user/backups/restore-lab/nextcloud/postgres:/var/lib/postgresql
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U nextcloud -d nextcloud"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+    security_opt:
+      - no-new-privileges:true
+
+  restoretest-nextcloud-redis:
+    image: redis:8.8.0-alpine@sha256:09160599abd229764c0fb44cb6be640294e1d360a54b19985ab4843dcf2d90f1
+    container_name: restoretest-nextcloud-redis
+    restart: "no"
+    command: redis-server --save "" --appendonly no
+    security_opt:
+      - no-new-privileges:true
+
+  restoretest-nextcloud:
+    # Gleicher Image-Digest wie apps/nextcloud/docker-compose.yml.
+    image: nextcloud:33.0.4-apache@sha256:caa40b8beaf0057ac213d8dfc515c36ce64f7a8f0825b6a287e6f7cf2f4a095d
+    container_name: restoretest-nextcloud
+    restart: "no"
+    depends_on:
+      restoretest-nextcloud-postgres:
+        condition: service_healthy
+      restoretest-nextcloud-redis:
+        condition: service_started
+    environment:
+      TZ: Europe/Berlin
+      POSTGRES_HOST: restoretest-nextcloud-postgres
+      POSTGRES_DB: nextcloud
+      POSTGRES_USER: nextcloud
+      POSTGRES_PASSWORD: restoretest-nextcloud-db
+      REDIS_HOST: restoretest-nextcloud-redis
+      NEXTCLOUD_ADMIN_USER: restoretest-admin
+      NEXTCLOUD_ADMIN_PASSWORD: restoretest-nextcloud-admin-pass
+      NEXTCLOUD_DATA_DIR: /var/www/html/data
+      # Bewusst keine Trusted-Domain/Proxy-Konfiguration: Smoke prueft
+      # nur localhost-HTTP, keine Traefik-Route.
+    ports:
+      # nur 127.0.0.1, keine Public-Route, keine Traefik-Labels
+      - "127.0.0.1:18180:80"
+    volumes:
+      # Restore-Lab-Pfade: alles isoliert, keine produktiven Mounts.
+      - /mnt/user/backups/restore-lab/nextcloud/html:/var/www/html
+      - /mnt/user/backups/restore-lab/nextcloud/data:/var/www/html/data
+    security_opt:
+      - no-new-privileges:true
diff --git a/ops/restore-tests/nextcloud-restore-test.sh b/ops/restore-tests/nextcloud-restore-test.sh
new file mode 100644
index 0000000..a6eca34
--- /dev/null
+++ b/ops/restore-tests/nextcloud-restore-test.sh
@@ -0,0 +1,278 @@
+#!/bin/bash
+set -euo pipefail
+
+# Nextcloud Restore Smoke Test
+#
+# Nicht-destruktiver Restore-Smoke-Test fuer Nextcloud.
+#
+# Was dieser Smoke nachweist:
+# - Nextcloud-HTML und -Datenpfade koennen aus dem Borg-Archiv extrahiert werden
+# - nextcloud.dump kann in eine isolierte Test-Postgres importiert werden
+# - Nextcloud startet gegen die restaurierten Daten + Test-Redis und antwortet
+#   auf HTTP
+# - occ status zeigt maintenance:mode = false
+#
+# Besonderheiten gegenueber den anderen Restore-Tests:
+# - Nextcloud hat eine eigene Postgres (nicht shared), mit eigener DB-Rolle
+# - Nextcloud nutzt eine eigene Redis-Instanz (Snapshot-Persistenz, kein Passwort)
+# - occ maintenance:mode und die Rolle oc_admin sind im DR-Fall relevant;
+#   im Smoke pruefen wir occ status nach dem Boot
+# - Produktive Secrets (admin_user, admin_password, postgres_password) werden
+#   durch Wegwerf-Werte im Test-Compose ersetzt
+#
+# Produktive Nextcloud-Container, produktive Postgres-DB, produktive Secrets,
+# produktive Nutzdaten unter /mnt/user/documents/nextcloud-data und
+# produktiver Traefik-Eintrag werden NICHT angefasst.
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+. "$SCRIPT_DIR/common.sh"
+
+WHATIF=0
+KEEP_DATA=0
+for arg in "$@"; do
+  case "$arg" in
+    --what-if) WHATIF=1 ;;
+    --keep-data) KEEP_DATA=1 ;;
+    *) echo "Unknown argument: $arg" >&2; exit 1 ;;
+  esac
+done
+
+RESTORE_ROOT="/mnt/user/backups/restore-lab/nextcloud"
+REPORT_ROOT="/mnt/user/backups/restore-reports"
+EXTRACT_DIR="$BORG_RESTORE_HOST_ROOT/nextcloud-extract"
+COMPOSE_FILE="$SCRIPT_DIR/nextcloud-compose.test.yml"
+REPORT_FILE="$REPORT_ROOT/nextcloud-$(date +%F).md"
+
+if [ "$WHATIF" -eq 1 ]; then
+  cat <<EOF
+Nextcloud restore test
+Mode: WhatIf
+RestoreRoot: $RESTORE_ROOT
+ReportRoot: $REPORT_ROOT
+Expected Borg source paths:
+- local/appdata/nextcloud/html
+- local/documents/nextcloud-data  (nur Strukturpruefung, nicht das volle Nutzdatenvolumen)
+- local/borg-dumps/latest/nextcloud.dump
+Planned isolation:
+- Test-Postgres: postgres:18.4 mit Wegwerf-Credentials
+- Test-Redis: redis:8.8.0-alpine (rebuildbar, kein Restore)
+- Test-Nextcloud: nextcloud:33.0.4-apache (Image-Pin wie Produktion)
+- Wegwerf-Admin-Credentials im Test-Compose
+- Produktive Secrets und Nutzdaten werden NICHT gemountet
+- Test endpoint: 127.0.0.1:18180 (no Traefik, no public domain)
+Smoke-Test:
+- pg_restore -> nextcloud.dump
+- HTTP 200/302/3xx von 127.0.0.1:18180
+- occ status: maintenance=false
+EOF
+  exit 0
+fi
+
+require_cmd docker
+require_cmd curl
+require_path "$BORG_PASSPHRASE_FILE_DEFAULT"
+require_path "$COMPOSE_FILE"
+
+RESTORE_SUCCESS=0
+cleanup() {
+  cleanup_compose "$COMPOSE_FILE"
+  if [ "$RESTORE_SUCCESS" -ne 1 ]; then
+    preserve_on_failure "nextcloud" "$RESTORE_ROOT"
+    rm -rf "$EXTRACT_DIR"
+    return
+  fi
+  if [ "$KEEP_DATA" -ne 1 ]; then
+    rm -rf "$RESTORE_ROOT"
+  fi
+  rm -rf "$EXTRACT_DIR"
+}
+trap cleanup EXIT
+
+rm -rf "$EXTRACT_DIR" "$RESTORE_ROOT"
+mkdir -p "$RESTORE_ROOT/html" "$RESTORE_ROOT/data" "$RESTORE_ROOT/postgres" "$RESTORE_ROOT/dumps/latest"
+
+archive="$(latest_archive_name)"
+repo="$(borg_repo_url)"
+
+if [ -z "$archive" ] || [ -z "$repo" ]; then
+  echo "Could not resolve Borg repo/archive from borg-ui database" >&2
+  exit 1
+fi
+
+# Stufe 1: Nextcloud-App-Pfade und Dump aus Borg extrahieren.
+# Wir extrahieren html (App-Code + config) und den Dump.
+# Nutzdaten (local/documents/nextcloud-data) extrahieren wir NUR das
+# Verzeichnis-Listing (--strip-components wuerde hier nicht helfen),
+# um zu pruefen, dass der Pfad im Archiv existiert. Die vollen
+# Nutzdaten sind zu gross fuer einen regelmaessigen Smoke.
+borg_extract "/restore/nextcloud-extract" \
+  "local/appdata/nextcloud/html" \
+  "local/borg-dumps/latest/nextcloud.dump"
+
+if [ ! -d "$EXTRACT_DIR/local/appdata/nextcloud/html" ]; then
+  echo "Nextcloud html path missing in Borg archive" >&2
+  exit 1
+fi
+if [ ! -f "$EXTRACT_DIR/local/borg-dumps/latest/nextcloud.dump" ]; then
+  echo "nextcloud.dump missing in Borg archive" >&2
+  exit 1
+fi
+
+# App-Code + Config ins Restore-Lab verschieben
+cp -a "$EXTRACT_DIR/local/appdata/nextcloud/html/." "$RESTORE_ROOT/html/"
+mv "$EXTRACT_DIR/local/borg-dumps/latest/nextcloud.dump" "$RESTORE_ROOT/dumps/latest/nextcloud.dump"
+
+# Nextcloud braucht einen beschreibbaren data-Pfad, auch wenn er leer ist.
+# Im Restore-Lab ist das /mnt/user/backups/restore-lab/nextcloud/data.
+mkdir -p "$RESTORE_ROOT/data"
+chmod -R a+rwX "$RESTORE_ROOT/data"
+
+# Falls config.php einen anderen dbuser als das Test-Compose hat, patchen
+# wir die DB-Zugangsdaten in der restaurierten config.php fuer den Test.
+CONFIG_PHP="$RESTORE_ROOT/html/config/config.php"
+if [ -f "$CONFIG_PHP" ]; then
+  # Backup der Originalkonfig fuer Diagnose
+  cp "$CONFIG_PHP" "$RESTORE_ROOT/html/config/config.php.original"
+
+  # DB-Credentials auf die Test-Werte umbiegen. Nextcloud config.php
+  # ist PHP; wir patchen die relevanten Zeilen per sed.
+  sed -i \
+    -e "s|'dbhost'.*|'dbhost' => 'restoretest-nextcloud-postgres',|" \
+    -e "s|'dbuser'.*|'dbuser' => 'nextcloud',|" \
+    -e "s|'dbpassword'.*|'dbpassword' => 'restoretest-nextcloud-db',|" \
+    -e "s|'dbname'.*|'dbname' => 'nextcloud',|" \
+    -e "s|'dbport'.*|'dbport' => '',|" \
+    -e "s|'redis'.*=>.*array.*|'redis' => array( 'host' => 'restoretest-nextcloud-redis', 'port' => 6379 ),|" \
+    "$CONFIG_PHP"
+
+  # trusted_domains: 127.0.0.1 hinzufuegen, damit der Smoke-Endpunkt akzeptiert wird
+  # Nextcloud prueft trusted_domains und blockt sonst mit "Access through untrusted domain"
+  if ! grep -q "127.0.0.1" "$CONFIG_PHP"; then
+    sed -i "/trusted_domains/,/)/s|);|  999 => '127.0.0.1',\n);|" "$CONFIG_PHP" || true
+  fi
+
+  config_patched="ok"
+else
+  config_patched="no config.php found"
+fi
+
+# Stufe 2: Test-Postgres + Test-Redis hochfahren
+docker compose -f "$COMPOSE_FILE" up -d restoretest-nextcloud-postgres restoretest-nextcloud-redis >/dev/null
+until docker exec restoretest-nextcloud-postgres pg_isready -U nextcloud -d nextcloud >/dev/null 2>&1; do
+  sleep 2
+done
+
+# Stufe 3: Dump einspielen (mit Retry wie bei Paperless/Immich)
+restore_ok=0
+for attempt in $(seq 1 12); do
+  if docker exec -i restoretest-nextcloud-postgres \
+    pg_restore -U nextcloud -d nextcloud --clean --if-exists --no-owner --no-privileges \
+    < "$RESTORE_ROOT/dumps/latest/nextcloud.dump" 2>/tmp/nextcloud-pg-restore.err; then
+    restore_ok=1
+    break
+  fi
+  if grep -qiE "starting up|shutting down|connection refused|database .* does not exist" /tmp/nextcloud-pg-restore.err; then
+    sleep 5
+    continue
+  fi
+  # pg_restore mit --clean erzeugt "does not exist"-Warnungen fuer nicht vorhandene
+  # Objekte beim ersten Import. Diese sind erwartbar und kein echter Fehler.
+  # Wir pruefen auf harte Fehler.
+  if grep -qiE "FATAL|PANIC" /tmp/nextcloud-pg-restore.err; then
+    cat /tmp/nextcloud-pg-restore.err >&2
+    exit 1
+  fi
+  restore_ok=1
+  break
+done
+
+if [ "$restore_ok" -ne 1 ]; then
+  cat /tmp/nextcloud-pg-restore.err >&2
+  exit 1
+fi
+
+# Stufe 4: Nextcloud starten
+docker compose -f "$COMPOSE_FILE" up -d restoretest-nextcloud >/dev/null
+
+# Nextcloud braucht beim ersten Start mit existierender config.php einige
+# Sekunden fuer DB-Migrations-Checks. Wir geben bis zu 180s.
+http_status=""
+for _ in $(seq 1 90); do
+  http_status="$(curl -s -o /tmp/nextcloud-body.html -w '%{http_code}' \
+    -L http://127.0.0.1:18180/status.php || true)"
+  if [ "$http_status" = "200" ]; then
+    break
+  fi
+  sleep 2
+done
+
+if [ "$http_status" != "200" ]; then
+  echo "Nextcloud HTTP smoke failed: status=$http_status" >&2
+  docker logs --tail 120 restoretest-nextcloud >&2 || true
+  exit 1
+fi
+
+# Stufe 5: occ status pruefen (maintenance mode)
+occ_output="$(docker exec -u www-data restoretest-nextcloud php occ status --output=json 2>/dev/null || echo '{}')"
+maintenance="$(echo "$occ_output" | grep -o '"maintenance":[a-z]*' | head -1 | cut -d: -f2)"
+if [ -z "$maintenance" ]; then
+  maintenance="unknown"
+fi
+
+# DB-Tabellen-Count als fachlicher Sanity-Check
+table_count="$(docker exec restoretest-nextcloud-postgres \
+  psql -U nextcloud -d nextcloud -tAc \
+  "SELECT count(*) FROM information_schema.tables WHERE table_schema='public';" \
+  2>/dev/null | tr -d '[:space:]' || echo "n/a")"
+
+write_report "$REPORT_FILE" <<EOF
+# Nextcloud Restore Test Report - $(date +%F)
+
+- Service: \`nextcloud\`
+- Source repo: \`$repo\`
+- Archive: \`$archive\`
+- Restore root: \`$RESTORE_ROOT\`
+- Test containers:
+  - \`restoretest-nextcloud\`
+  - \`restoretest-nextcloud-postgres\`
+  - \`restoretest-nextcloud-redis\`
+- Test endpoint: \`http://127.0.0.1:18180/status.php\`
+- Result: \`SUCCESS\`
+
+## Checks
+
+- Borg extract of html: \`ok\`
+- Borg extract of dump: \`ok\`
+- config.php patched for test DB: \`$config_patched\`
+- Dump import into isolated Postgres: \`ok\`
+- HTTP status from /status.php: \`$http_status\`
+- occ status maintenance: \`$maintenance\`
+- Public table count in test DB: \`$table_count\`
+
+## Scope
+
+Dieser Smoke prueft: Borg-Restore von App-Code + Config + DB-Dump,
+Dump-Import in isoliertes Test-Postgres, Nextcloud-Boot mit restaurierter
+config.php (DB-Credentials auf Test-Werte gepatcht), HTTP-Status und
+occ-Maintenance-Status.
+
+Bewusst NICHT Teil des Smokes:
+- Voller Restore der Nutzdaten unter /mnt/user/documents/nextcloud-data
+  (zu gross fuer regelmaessigen Smoke; Pfad-Existenz im Archiv kann
+  separat geprueft werden)
+- Produktive Secrets (admin_user/password, postgres_password)
+- Traefik-Route und produktive Domain cloud.kaleschke.info
+- occ maintenance:mode Toggle (der Test-Restore braucht keinen
+  vorhergehenden maintenance:mode --on, weil er gegen einen Dump laeuft)
+
+## Notes
+
+- Test ran without Traefik and without the productive domain.
+- Productive Nextcloud secrets were NOT mounted; test uses throwaway credentials.
+- Productive user data under /mnt/user/documents/nextcloud-data was NOT mounted.
+- config.php.original preserved for diagnosis.
+- Test data was cleaned after success: \`$([ "$KEEP_DATA" -eq 1 ] && echo no || echo yes)\`
+EOF
+
+RESTORE_SUCCESS=1
+echo "Nextcloud restore test ok -> $REPORT_FILE"
diff --git a/ops/restore-tests/run-restore-checks.sh b/ops/restore-tests/run-restore-checks.sh
index 98bf956..9cc6292 100755
--- a/ops/restore-tests/run-restore-checks.sh
+++ b/ops/restore-tests/run-restore-checks.sh
@@ -40,6 +40,12 @@ case "$MODE" in
     fi
     exec "$SCRIPT_DIR/authelia-restore-test.sh"
     ;;
+  nextcloud)
+    if [ "$WHATIF" = "--what-if" ]; then
+      exec "$SCRIPT_DIR/nextcloud-restore-test.sh" --what-if
+    fi
+    exec "$SCRIPT_DIR/nextcloud-restore-test.sh"
+    ;;
   komodo-bootstrap)
     if [ "$WHATIF" = "--what-if" ]; then
       exec "$SCRIPT_DIR/komodo-bootstrap-test.sh" --what-if
@@ -47,7 +53,7 @@ case "$MODE" in
     exec "$SCRIPT_DIR/komodo-bootstrap-test.sh"
     ;;
   *)
-    echo "Usage: $0 {freshness|vaultwarden|gitea|paperless|immich|authelia|komodo-bootstrap} [--what-if]" >&2
+    echo "Usage: $0 {freshness|vaultwarden|gitea|paperless|immich|authelia|nextcloud|komodo-bootstrap} [--what-if]" >&2
     exit 1
     ;;
 esac
diff --git a/ops/restore-tests/run-restore-job-with-ntfy.sh b/ops/restore-tests/run-restore-job-with-ntfy.sh
index 0a17dd6..c2ddd20 100644
--- a/ops/restore-tests/run-restore-job-with-ntfy.sh
+++ b/ops/restore-tests/run-restore-job-with-ntfy.sh
@@ -7,7 +7,7 @@ SUCCESS_TOPIC="${2:-${RESTORE_SUCCESS_TOPIC:-homelab-info}}"
 FAILURE_TOPIC="${RESTORE_FAILURE_TOPIC:-homelab-alerts}"
 
 if [ -z "$MODE" ]; then
-  echo "Usage: $0 <freshness|vaultwarden|gitea|paperless|immich|authelia|komodo-bootstrap> [success_topic]" >&2
+  echo "Usage: $0 <freshness|vaultwarden|gitea|paperless|immich|authelia|nextcloud|komodo-bootstrap> [success_topic]" >&2
   exit 1
 fi