diff --git a/06_logs.sh b/06_logs.sh
new file mode 100644
index 0000000..abda387
--- /dev/null
+++ b/06_logs.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+LOG_FILE="$SCRIPT_DIR/raspi-backup.log"
+
+usage() {
+  echo "Usage:"
+  echo "  ./06_logs.sh            # letzte 200 Zeilen"
+  echo "  ./06_logs.sh -f         # live folgen (tail -f)"
+  echo "  ./06_logs.sh -n 500     # letzte N Zeilen"
+  echo "  ./06_logs.sh --all      # komplettes Log (less, falls vorhanden)"
+}
+
+if [[ ! -f "$LOG_FILE" ]]; then
+  echo "Kein Log gefunden: $LOG_FILE"
+  exit 0
+fi
+
+mode="tail"
+lines=200
+
+case "${1:-}" in
+  "" ) ;;
+  -f|--follow) mode="follow" ;;
+  -n|--lines)
+    [[ -n "${2:-}" ]] || { usage; exit 2; }
+    lines="$2"
+    ;;
+  --all) mode="all" ;;
+  -h|--help) usage; exit 0 ;;
+  *) usage; exit 2 ;;
+esac
+
+case "$mode" in
+  follow)
+    echo "Folge Log live: $LOG_FILE"
+    tail -f "$LOG_FILE"
+    ;;
+  all)
+    if command -v less >/dev/null 2>&1; then
+      less "$LOG_FILE"
+    else
+      cat "$LOG_FILE"
+    fi
+    ;;
+  tail)
+    tail -n "$lines" "$LOG_FILE"
+    ;;
+esac
diff --git a/07_timer_enable.sh b/07_timer_enable.sh
new file mode 100644
index 0000000..046b1df
--- /dev/null
+++ b/07_timer_enable.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+SERVICE_NAME="raspi-backup.service"
+TIMER_NAME="raspi-backup.timer"
+SERVICE_PATH="/etc/systemd/system/${SERVICE_NAME}"
+TIMER_PATH="/etc/systemd/system/${TIMER_NAME}"
+
+[[ "${EUID:-$(id -u)}" -eq 0 ]] || { echo "Bitte mit sudo starten: sudo $SCRIPT_DIR/07_timer_enable.sh"; exit 1; }
+command -v systemctl >/dev/null 2>&1 || { echo "systemctl nicht gefunden."; exit 1; }
+
+RUN_SCRIPT="$SCRIPT_DIR/04_run_backup.sh"
+[[ -x "$RUN_SCRIPT" ]] || { echo "FEHLT oder nicht ausführbar: $RUN_SCRIPT"; exit 1; }
+
+cat >"$SERVICE_PATH" <<EOF
+[Unit]
+Description=Raspi Backup (runs 04_run_backup.sh)
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart=${RUN_SCRIPT}
+
+# etwas Hardening
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=full
+ProtectHome=false
+EOF
+
+cat >"$TIMER_PATH" <<EOF
+[Unit]
+Description=Raspi Backup daily timer
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+RandomizedDelaySec=10m
+
+[Install]
+WantedBy=timers.target
+EOF
+
+systemctl daemon-reload
+systemctl enable --now "$TIMER_NAME"
+
+echo "Timer aktiviert."
+echo "Status:"
+systemctl --no-pager status "$TIMER_NAME" || true
+echo
+echo "Nächste Runs anzeigen:"
+systemctl list-timers --all | grep -E "raspi-backup\.timer|NEXT" || true
diff --git a/08_timer_disable.sh b/08_timer_disable.sh
new file mode 100644
index 0000000..6aab6bc
--- /dev/null
+++ b/08_timer_disable.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+SERVICE_NAME="raspi-backup.service"
+TIMER_NAME="raspi-backup.timer"
+SERVICE_PATH="/etc/systemd/system/${SERVICE_NAME}"
+TIMER_PATH="/etc/systemd/system/${TIMER_NAME}"
+
+[[ "${EUID:-$(id -u)}" -eq 0 ]] || { echo "Bitte mit sudo starten: sudo $SCRIPT_DIR/08_timer_disable.sh"; exit 1; }
+command -v systemctl >/dev/null 2>&1 || { echo "systemctl nicht gefunden."; exit 1; }
+
+# stoppen/disable (egal ob existiert)
+systemctl disable --now "$TIMER_NAME" >/dev/null 2>&1 || true
+
+# units löschen (falls vorhanden)
+rm -f "$SERVICE_PATH" "$TIMER_PATH"
+
+systemctl daemon-reload
+
+echo "Timer/Service deaktiviert und entfernt."
+echo "Check:"
+systemctl list-timers --all | grep -E "raspi-backup\.timer" || echo "OK: kein Timer mehr da."
diff --git a/09_uninstall.sh b/09_uninstall.sh
new file mode 100644
index 0000000..37e7178
--- /dev/null
+++ b/09_uninstall.sh
@@ -0,0 +1,127 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+CFG="$SCRIPT_DIR/config.sh"
+
+SERVICE_NAME="raspi-backup.service"
+TIMER_NAME="raspi-backup.timer"
+SERVICE_PATH="/etc/systemd/system/${SERVICE_NAME}"
+TIMER_PATH="/etc/systemd/system/${TIMER_NAME}"
+
+LOG_FILE="$SCRIPT_DIR/raspi-backup.log"
+LOCK_FILE="$SCRIPT_DIR/.raspi-backup.lock"
+
+die(){ echo "ERROR: $*" >&2; exit 1; }
+
+host_short(){ hostname -s 2>/dev/null || hostname 2>/dev/null || echo "raspi"; }
+
+echo "== Uninstall =="
+echo
+echo "Das Script entfernt:"
+echo "- systemd Timer/Service"
+echo "- Log/Lock"
+echo "- config.sh"
+echo "- SSH Backup-Key + Alias (nur Backup-bezogen)"
+echo
+echo "NICHT entfernt:"
+echo "- andere SSH-Keys"
+echo "- Backup-Daten auf dem NAS"
+echo
+
+read -r -p "Wirklich deinstallieren? (ja/nein): " ans
+[[ "$ans" == "ja" ]] || { echo "Abgebrochen."; exit 0; }
+
+# ------------------------------------------------------------
+# config laden (für KEY_TYPE, ALIAS_PREFIX, SSH_USER)
+# ------------------------------------------------------------
+if [[ -f "$CFG" ]]; then
+  # shellcheck disable=SC1090
+  source "$CFG"
+else
+  echo "config.sh fehlt – fahre mit Best-Effort fort."
+fi
+
+SSH_USER="${SSH_USER:-admin}"
+KEY_TYPE="${KEY_TYPE:-ed25519}"
+ALIAS_PREFIX="${ALIAS_PREFIX:-nas}"
+hn="$(host_short)"
+
+USER_HOME="$(eval echo "~${SSH_USER}")"
+SSH_DIR="${USER_HOME}/.ssh"
+KEY_FILE="${SSH_DIR}/id_${KEY_TYPE}_${hn}"
+PUB_FILE="${KEY_FILE}.pub"
+SSH_CFG="${SSH_DIR}/config"
+ALIAS="${ALIAS_PREFIX}-${hn}"
+
+# ------------------------------------------------------------
+# systemd entfernen
+# ------------------------------------------------------------
+if command -v systemctl >/dev/null 2>&1; then
+  if [[ "${EUID:-$(id -u)}" -eq 0 ]]; then
+    systemctl disable --now "$TIMER_NAME" >/dev/null 2>&1 || true
+    rm -f "$SERVICE_PATH" "$TIMER_PATH"
+    systemctl daemon-reload >/dev/null 2>&1 || true
+  elif command -v sudo >/dev/null 2>&1; then
+    sudo bash -c "
+      systemctl disable --now '$TIMER_NAME' >/dev/null 2>&1 || true
+      rm -f '$SERVICE_PATH' '$TIMER_PATH'
+      systemctl daemon-reload >/dev/null 2>&1 || true
+    " || true
+  fi
+  echo "systemd Timer/Service entfernt."
+fi
+
+# ------------------------------------------------------------
+# SSH Alias entfernen
+# ------------------------------------------------------------
+if [[ -f "$SSH_CFG" ]] && command -v awk >/dev/null 2>&1; then
+  tmp="$(mktemp)"
+  awk -v host="$ALIAS" '
+    BEGIN {skip=0}
+    $1=="Host" && $2==host {skip=1; next}
+    $1=="Host" && $2!=host {skip=0}
+    skip==0 {print}
+  ' "$SSH_CFG" >"$tmp" && mv "$tmp" "$SSH_CFG"
+  echo "SSH Alias entfernt: $ALIAS"
+fi
+
+# ------------------------------------------------------------
+# SSH Keys entfernen (nur Backup-Key)
+# ------------------------------------------------------------
+rm -f "$KEY_FILE" "$PUB_FILE" 2>/dev/null || true
+echo "SSH Backup-Key entfernt:"
+echo "  $KEY_FILE"
+echo "  $PUB_FILE"
+
+# ------------------------------------------------------------
+# .ssh Ordner ggf. entfernen (nur wenn leer)
+# ------------------------------------------------------------
+if [[ -d "$SSH_DIR" ]] && [[ -z "$(ls -A "$SSH_DIR")" ]]; then
+  rmdir "$SSH_DIR"
+  echo ".ssh Ordner war leer → entfernt."
+else
+  echo ".ssh Ordner bleibt bestehen (enthält weitere Dateien)."
+fi
+
+# ------------------------------------------------------------
+# config + log + lock entfernen
+# ------------------------------------------------------------
+rm -f "$CFG" "$LOG_FILE" "$LOCK_FILE" 2>/dev/null || true
+echo "config.sh, Log und Lock entfernt."
+
+echo
+echo "Uninstall abgeschlossen."
+echo
+echo "Wenn du auch die Scripts löschen willst:"
+echo "rm -f \\"
+echo "  $SCRIPT_DIR/start.sh \\"
+echo "  $SCRIPT_DIR/01_setup.sh \\"
+echo "  $SCRIPT_DIR/02_setup_ssh.sh \\"
+echo "  $SCRIPT_DIR/03_verify.sh \\"
+echo "  $SCRIPT_DIR/04_run_backup.sh \\"
+echo "  $SCRIPT_DIR/05_status.sh \\"
+echo "  $SCRIPT_DIR/06_logs.sh \\"
+echo "  $SCRIPT_DIR/07_timer_enable.sh \\"
+echo "  $SCRIPT_DIR/08_timer_disable.sh \\"
+echo "  $SCRIPT_DIR/09_uninstall.sh"