diff --git a/README.md b/README.md
index 19d5a4d..f148af4 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
-# QuantumRick Backup System
+# Citadel Backup System
 
 Système de sauvegarde automatisé basé sur Restic avec intégration systemd pour services containerisés.
 
 ## Structure du Projet
 
 ```
-quantumrick/
+citadel/
 ├── backup.env              # Configuration centralisée
 ├── manage                  # Interface principale de gestion
 ├── install                 # Script d'installation et configuration
diff --git a/backup.env.sample b/backup.env.sample
index eed9c8c..18d920a 100644
--- a/backup.env.sample
+++ b/backup.env.sample
@@ -1,78 +1,55 @@
 #!/bin/bash
-# Configuration centralisée pour le système de backup quantumrick
+# Configuration centralisée pour le système de backup citadel
 # Copiez ce fichier vers backup.env et adaptez les valeurs selon votre environnement
 
-# === Configuration Utilisateur ===
+# === Configuration Essentielle ===
 # Utilisateur système qui exécutera les backups
-BACKUP_USER="${BACKUP_USER:-citadel}"
-BACKUP_HOME="${BACKUP_HOME:-/home/$BACKUP_USER}"
-
-# === Répertoires Principaux ===
-# Racine du projet quantumrick
-PROJECT_ROOT="${PROJECT_ROOT:-/home/nicolas/dev/quantumrick}"
-# Répertoire où les scripts de backup sont installés
-BACKUP_BASE_DIR="${BACKUP_BASE_DIR:-$BACKUP_HOME/backup}"
+CITADEL_USER="${CITADEL_USER:-citadel}"
+# Racine du projet citadel
+PROJECT_ROOT="${PROJECT_ROOT:-/home/nicolas/dev/citadel}"
 # Répertoire contenant les services à sauvegarder
-SERVICES_BASE_DIR="${SERVICES_BASE_DIR:-$BACKUP_HOME/services}"
-# Répertoire de configuration du projet
-CONFIG_DIR="${CONFIG_DIR:-$PROJECT_ROOT/config}"
+SERVICES_BASE_DIR="${SERVICES_BASE_DIR:-/home/$CITADEL_USER/services}"
 
-# === Stockage des Sauvegardes ===
+# === Stockage Restic ===
 # Chemin de base pour le stockage des backups
-BACKUP_STORAGE_PATH="${BACKUP_STORAGE_PATH:-/mnt/data/backup}"
+RESTIC_STORAGE="${RESTIC_STORAGE:-/mnt/data/backup}"
 # Nom du repository Restic
-BACKUP_REPO_NAME="${BACKUP_REPO_NAME:-quantumrick}"
-# Chemin complet du repository Restic
-BACKUP_REPOSITORY="${BACKUP_REPOSITORY:-$BACKUP_STORAGE_PATH/$BACKUP_REPO_NAME}"
+RESTIC_REPO="${RESTIC_REPO:-citadel}"
 
 # === Système ===
-# Répertoire des services systemd
-SYSTEMD_DIR="${SYSTEMD_DIR:-/etc/systemd/system}"
+# Planning de sauvegarde par défaut (format systemd)
+# Exemples: "*-*-* 03:00:00" (quotidien 3h), "Mon *-*-* 04:00:00" (lundi 4h)
+DEFAULT_BACKUP_SCHEDULE="${DEFAULT_BACKUP_SCHEDULE:-*-*-* 03:00:00}"
 # Répertoire des logs système
 LOG_DIR="${LOG_DIR:-/var/log}"
 # Répertoire temporaire
 TEMP_DIR="${TEMP_DIR:-/tmp}"
-
-# === Restic Configuration ===
-# Cache Restic
-RESTIC_CACHE_DIR="${RESTIC_CACHE_DIR:-$TEMP_DIR/restic-cache}"
 # Fichier de configuration Restic (généré automatiquement)
-RESTIC_CONFIG_FILE="${RESTIC_CONFIG_FILE:-$CONFIG_DIR/restic.conf}"
+RESTIC_CONFIG_FILE="${RESTIC_CONFIG_FILE:-$PROJECT_ROOT/config/restic.conf}"
 
-# === Templates systemd ===
-# Nom des fichiers templates
+# === Politique de Rétention ===
+# Nombre de sauvegardes quotidiennes à conserver
+RETENTION_DAILY="${RETENTION_DAILY:-7}"
+# Nombre de sauvegardes hebdomadaires à conserver
+RETENTION_WEEKLY="${RETENTION_WEEKLY:-4}"
+# Nombre de sauvegardes mensuelles à conserver
+RETENTION_MONTHLY="${RETENTION_MONTHLY:-12}"
+# Nombre de sauvegardes annuelles à conserver
+RETENTION_YEARLY="${RETENTION_YEARLY:-3}"
+
+# === Variables Dérivées (automatiquement calculées) ===
+BACKUP_USER="$CITADEL_USER"
+BACKUP_HOME="${BACKUP_HOME:-/home/$CITADEL_USER}"
+BACKUP_BASE_DIR="${BACKUP_BASE_DIR:-$BACKUP_HOME/backup}"
+BACKUP_STORAGE_PATH="$RESTIC_STORAGE"
+BACKUP_REPO_NAME="$RESTIC_REPO"
+BACKUP_REPOSITORY="${BACKUP_REPOSITORY:-$RESTIC_STORAGE/$RESTIC_REPO}"
+RESTIC_CACHE_DIR="${RESTIC_CACHE_DIR:-$TEMP_DIR/restic-cache}"
+CONFIG_DIR="${CONFIG_DIR:-$PROJECT_ROOT/config}"
+SYSTEMD_DIR="${SYSTEMD_DIR:-/etc/systemd/system}"
 SERVICE_TEMPLATE="${SERVICE_TEMPLATE:-service-backup@.service}"
 TIMER_TEMPLATE="${TIMER_TEMPLATE:-service-backup@.timer}"
 
-# === Planning par défaut ===
-# Planning de sauvegarde par défaut (format systemd)
-# Exemples: "*-*-* 03:00:00" (quotidien 3h), "Mon *-*-* 04:00:00" (lundi 4h)
-DEFAULT_BACKUP_SCHEDULE="${DEFAULT_BACKUP_SCHEDULE:-*-*-* 03:00:00}"
-
 # === Variables d'export pour Restic ===
 export RESTIC_REPOSITORY="$BACKUP_REPOSITORY"
-export RESTIC_CACHE_DIR
-
-# Fonction utilitaire pour valider les chemins
-validate_paths() {
-    local paths=("$BACKUP_HOME" "$SERVICES_BASE_DIR" "$(dirname "$BACKUP_STORAGE_PATH")")
-    for path in "${paths[@]}"; do
-        if [[ ! -d "$path" ]]; then
-            echo "WARN: Directory $path does not exist" >&2
-        fi
-    done
-}
-
-# Fonction pour afficher la configuration courante
-show_config() {
-    echo "=== Configuration Backup ==="
-    echo "BACKUP_USER: $BACKUP_USER"
-    echo "BACKUP_HOME: $BACKUP_HOME"
-    echo "BACKUP_BASE_DIR: $BACKUP_BASE_DIR"
-    echo "SERVICES_BASE_DIR: $SERVICES_BASE_DIR"
-    echo "BACKUP_REPOSITORY: $BACKUP_REPOSITORY"
-    echo "RESTIC_CONFIG_FILE: $RESTIC_CONFIG_FILE"
-    echo "SYSTEMD_DIR: $SYSTEMD_DIR"
-    echo "LOG_DIR: $LOG_DIR"
-    echo "DEFAULT_BACKUP_SCHEDULE: $DEFAULT_BACKUP_SCHEDULE"
-}
\ No newline at end of file
+export RESTIC_CACHE_DIR
\ No newline at end of file
diff --git a/backup/install-service b/backup/install-service
index b50f9e4..c45d0ca 100755
--- a/backup/install-service
+++ b/backup/install-service
@@ -36,9 +36,9 @@ BACKUP_SCRIPT="$SERVICE_DIR/backup.sh"
 BACKUP_DIR="$BACKUP_BASE_DIR"
 
 # Systemd template files
-SERVICE_TEMPLATE="$SERVICE_TEMPLATE"
-TIMER_TEMPLATE="$TIMER_TEMPLATE"
-SYSTEMD_DIR="$SYSTEMD_DIR"
+SERVICE_TEMPLATE="service-backup@.service"
+TIMER_TEMPLATE="service-backup@.timer"
+SYSTEMD_DIR="/etc/systemd/system"
 
 # Instance names
 SERVICE_INSTANCE="service-backup@$SERVICE_NAME.service"
@@ -70,13 +70,13 @@ fi
 chmod +x "$BACKUP_SCRIPT"
 
 # Check if template files exist
-if [ ! -f "$BACKUP_DIR/$SERVICE_TEMPLATE" ]; then
-    echo "ERROR: Service template not found: $BACKUP_DIR/$SERVICE_TEMPLATE"
+if [ ! -f "$BACKUP_DIR/service-backup@.service" ]; then
+    echo "ERROR: Service template not found: $BACKUP_DIR/service-backup@.service"
     exit 1
 fi
 
-if [ ! -f "$BACKUP_DIR/$TIMER_TEMPLATE" ]; then
-    echo "ERROR: Timer template not found: $BACKUP_DIR/$TIMER_TEMPLATE"
+if [ ! -f "$BACKUP_DIR/service-backup@.timer" ]; then
+    echo "ERROR: Timer template not found: $BACKUP_DIR/service-backup@.timer"
     exit 1
 fi
 
@@ -95,20 +95,20 @@ fi
 echo "Generating service file with current configuration..."
 sed -e "s|\${BACKUP_USER}|$BACKUP_USER|g" \
     -e "s|\${SERVICES_BASE_DIR}|$SERVICES_BASE_DIR|g" \
-    "$BACKUP_DIR/$SERVICE_TEMPLATE" > "$SYSTEMD_DIR/$SERVICE_TEMPLATE"
-chmod 644 "$SYSTEMD_DIR/$SERVICE_TEMPLATE"
+    "$BACKUP_DIR/service-backup@.service" > "/etc/systemd/system/service-backup@.service"
+chmod 644 "/etc/systemd/system/service-backup@.service"
 
 echo "Generating timer file with current configuration..."
 sed -e "s|\${DEFAULT_BACKUP_SCHEDULE}|$DEFAULT_BACKUP_SCHEDULE|g" \
-    "$BACKUP_DIR/$TIMER_TEMPLATE" > "$SYSTEMD_DIR/$TIMER_TEMPLATE"
-chmod 644 "$SYSTEMD_DIR/$TIMER_TEMPLATE"
+    "$BACKUP_DIR/service-backup@.timer" > "/etc/systemd/system/service-backup@.timer"
+chmod 644 "/etc/systemd/system/service-backup@.timer"
 
 # Create custom timer with specific schedule if different from default
 if [ "$SCHEDULE" != "$DEFAULT_BACKUP_SCHEDULE" ]; then
     echo "Creating custom timer with schedule: $SCHEDULE"
     sed "s|OnCalendar=\*-\*-\* 03:00:00|OnCalendar=$SCHEDULE|" \
-        "$BACKUP_DIR/$TIMER_TEMPLATE" > "$SYSTEMD_DIR/$TIMER_INSTANCE"
-    chmod 644 "$SYSTEMD_DIR/$TIMER_INSTANCE"
+        "$BACKUP_DIR/service-backup@.timer" > "/etc/systemd/system/$TIMER_INSTANCE"
+    chmod 644 "/etc/systemd/system/$TIMER_INSTANCE"
 fi
 
 # Reload systemd
diff --git a/backup/service-script-template.sh b/backup/service-script-template.sh
new file mode 100644
index 0000000..df644f6
--- /dev/null
+++ b/backup/service-script-template.sh
@@ -0,0 +1,102 @@
+#!/bin/bash
+
+# Generic Service Script Template for Citadel Backup System
+# This template provides standardized configuration for all service scripts
+# Usage: Source this template at the beginning of service backup/restore scripts
+
+# Auto-configure via backup.env
+# Calculate PROJECT_ROOT based on where template is sourced from
+# Template is in backup/, so from services/service_name/ we need to go ../../
+if [[ "${BASH_SOURCE[1]}" == */services/* ]]; then
+    # Sourced from a service script
+    PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[1]}")/../.." && pwd)"
+else
+    # Sourced from backup/ directory or elsewhere
+    SCRIPT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    PROJECT_ROOT="$(cd "$SCRIPT_ROOT/.." && pwd)"
+fi
+
+# Source centralized configuration
+if [ -f "$PROJECT_ROOT/backup.env" ]; then
+    source "$PROJECT_ROOT/backup.env"
+else
+    echo "ERROR: Configuration file backup.env not found in $PROJECT_ROOT" >&2
+    echo "Please ensure backup.env exists in project root directory" >&2
+    exit 1
+fi
+
+# Variables universelles pour tout service (auto-dérivées)
+# Detect service name from the script that sources this template
+if [[ "${BASH_SOURCE[1]}" == */services/* ]]; then
+    SERVICE_NAME="$(basename "$(dirname "${BASH_SOURCE[1]}")")"
+else
+    SERVICE_NAME="$(basename "$(dirname "$0")")"
+fi
+SERVICE_DIR="$SERVICES_BASE_DIR/$SERVICE_NAME"
+CONFIG_FILE="$RESTIC_CONFIG_FILE"
+LOG_FILE="$LOG_DIR/$SERVICE_NAME-backup.log"
+DATA_DIR="${DATA_DIR:-$(dirname "$SERVICES_BASE_DIR")/data/$SERVICE_NAME}"
+TEMP_BACKUP_DIR="$TEMP_DIR/$SERVICE_NAME-backup"
+
+# Logging functions
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1"
+}
+
+error() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] ERROR: $1" >&2
+}
+
+success() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] SUCCESS: $1"
+}
+
+# Function to apply retention policy
+apply_retention() {
+    local service_tag="$1"
+    log "Applying retention policy for $service_tag"
+    
+    restic forget --tag "$service_tag" \
+        --keep-daily "$RETENTION_DAILY" \
+        --keep-weekly "$RETENTION_WEEKLY" \
+        --keep-monthly "$RETENTION_MONTHLY" \
+        --keep-yearly "$RETENTION_YEARLY" \
+        --prune
+    
+    if [ $? -eq 0 ]; then
+        success "Retention policy applied successfully"
+    else
+        error "Failed to apply retention policy"
+        return 1
+    fi
+}
+
+# Function to setup logging
+setup_logging() {
+    # Redirect stdout and stderr to log file while keeping console output
+    exec 1> >(tee -a "$LOG_FILE")
+    exec 2> >(tee -a "$LOG_FILE" >&2)
+}
+
+# Function to cleanup on exit
+cleanup_on_exit() {
+    log "Cleaning up temporary files..."
+    [ -d "$TEMP_BACKUP_DIR" ] && rm -rf "$TEMP_BACKUP_DIR"
+    
+    # Ensure containers are running in case of error
+    if [ -f "$SERVICE_DIR/docker-compose.yml" ]; then
+        if docker compose -f "$SERVICE_DIR/docker-compose.yml" ps --services --filter "status=exited" | grep -q .; then
+            log "Some containers are stopped, restarting..."
+            cd "$SERVICE_DIR"
+            docker compose up -d
+        fi
+    fi
+}
+
+# Export commonly used variables
+export SERVICE_NAME
+export SERVICE_DIR
+export CONFIG_FILE
+export LOG_FILE
+export DATA_DIR
+export TEMP_BACKUP_DIR
\ No newline at end of file
diff --git a/claude.md b/claude.md
index e20e3e6..2baa901 100644
--- a/claude.md
+++ b/claude.md
@@ -2,11 +2,11 @@
 
 This file provides guidance to Claude Code when working with this repository.
 
-This is a pack of script for manage a self hosted server.
+This is a pack of script named citadel for manage a self hosted server, for personnal usage.
+IMPORTANT Keep things simple. Ne rajoute pas de fonctionnalitée non spécifiquement souhaité. Si tu penses qu'une nouvelle fonctionnalitée est fortement souhaitable demande moi avant.
+Use shell script.
+Ne prévoit pas de script ou documentation de migration sauf si demandé explicitement.
 
 I interact with you in french, you can anwser in french
 IMPORTANT all code comment and documentation must be write in english
 IMPORTANT do not analyse file mentioned in .gitignore
-
-Keep things simple
-Use shell script
diff --git a/install b/install
index 489a1d9..10f91d0 100755
--- a/install
+++ b/install
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# QuantumRick Installation Script
+# Citadel Installation Script
 # Consolidates configuration generation and repository initialization
 
 set -e
@@ -59,7 +59,7 @@ generate_config() {
     # Create configuration file
     echo "Creating configuration file..."
     cat > "$CONFIG_FILE" << EOF
-# Restic configuration for quantumrick backups
+# Restic configuration for citadel backups
 # Generated on $(date)
 
 # Repository path
@@ -137,7 +137,7 @@ initialize_repository() {
 }
 
 complete_setup() {
-    echo "=== QuantumRick Complete Setup ==="
+    echo "=== Citadel Complete Setup ==="
     echo ""
     
     # Step 1: Generate configuration
@@ -155,7 +155,7 @@ complete_setup() {
     fi
     
     echo ""
-    echo "🎉 QuantumRick setup completed successfully!"
+    echo "🎉 Citadel setup completed successfully!"
     echo ""
     echo "Next steps:"
     echo "1. Install a service timer: ./manage install <service_name>"
diff --git a/manage b/manage
index e0a2043..1c0d512 100755
--- a/manage
+++ b/manage
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# QuantumRick Backup Management Interface
+# Citadel Backup Management Interface
 # Automatically sources configuration from project root
 
 set -e
diff --git a/services/paperless/backup.sh b/services/paperless/backup.sh
index 085e4f6..72b497c 100755
--- a/services/paperless/backup.sh
+++ b/services/paperless/backup.sh
@@ -1,48 +1,25 @@
 #!/bin/bash
 
-# Generic Service Backup Script for Docker Compose services
-# Location: /home/citadel/services/paperless/backup.sh
-# Runs daily at 3 AM via systemd timer
+# Paperless Service Backup Script
+# Uses centralized configuration via backup.env
 
 set -e
 
-# Service Configuration
-SERVICE_NAME="paperless"
-SERVICE_DIR="/home/citadel/services/$SERVICE_NAME"
-DATA_DIR="/home/citadel/data/$SERVICE_NAME"
-TEMP_BACKUP_DIR="/tmp/$SERVICE_NAME"
-CONFIG_FILE="/home/citadel/backup/restic.conf"
+# Load template configuration
+source "$(dirname "$(dirname "$(dirname "$0")")")/backup/service-script-template.sh"
+
+# Setup logging and cleanup
+setup_logging
+trap cleanup_on_exit EXIT
+
+# Service-specific configuration
 COMPOSE_FILE="$SERVICE_DIR/docker-compose.yml"
 
-# Logging
-LOG_FILE="/var/log/$SERVICE_NAME-backup.log"
-exec 1> >(tee -a "$LOG_FILE")
-exec 2> >(tee -a "$LOG_FILE" >&2)
-
-log() {
-    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1"
-}
-
-cleanup() {
-    log "Cleaning up temporary files..."
-    rm -rf "$TEMP_BACKUP_DIR"
-    
-    # Ensure containers are running in case of error
-    if docker compose -f "$COMPOSE_FILE" ps --services --filter "status=exited" | grep -q .; then
-        log "Some containers are stopped, restarting..."
-        cd "$SERVICE_DIR"
-        docker compose up -d
-    fi
-}
-
-# Set up cleanup on exit
-trap cleanup EXIT
-
 log "=== Starting $SERVICE_NAME Backup ==="
 
 # Check if configuration exists
 if [ ! -f "$CONFIG_FILE" ]; then
-    log "ERROR: Configuration file $CONFIG_FILE not found!"
+    error "Configuration file $CONFIG_FILE not found!"
     exit 1
 fi
 
@@ -58,7 +35,7 @@ cd "$SERVICE_DIR"
 
 # Check if compose file exists
 if [ ! -f "$COMPOSE_FILE" ]; then
-    log "ERROR: Docker compose file $COMPOSE_FILE not found!"
+    error "Docker compose file $COMPOSE_FILE not found!"
     exit 1
 fi
 
@@ -79,7 +56,7 @@ sleep 10
 if [ -f "$SERVICE_DIR/.env" ]; then
     source "$SERVICE_DIR/.env"
 else
-    log "ERROR: .env file not found!"
+    error ".env file not found!"
     exit 1
 fi
 
@@ -90,9 +67,9 @@ log "Creating database dump: $DUMP_FILE"
 docker compose exec -T db pg_dump -U "$POSTGRES_USER" -d "$POSTGRES_DB" > "$DUMP_FILE"
 
 if [ $? -eq 0 ]; then
-    log "✅ Database dump created successfully"
+    success "Database dump created successfully"
 else
-    log "❌ Database dump failed!"
+    error "Database dump failed!"
     exit 1
 fi
 
@@ -113,9 +90,9 @@ restic backup "$TEMP_BACKUP_DIR" \
     --tag "daily"
 
 if [ $? -eq 0 ]; then
-    log "✅ Restic backup completed successfully with tag: $SERVICE_NAME"
+    success "Restic backup completed successfully with tag: $SERVICE_NAME"
 else
-    log "❌ Restic backup failed!"
+    error "Restic backup failed!"
     exit 1
 fi
 
@@ -127,23 +104,17 @@ sleep 15
 
 # Check if services are running
 if docker compose ps --services --filter "status=running" | grep -q "webserver"; then
-    log "✅ $SERVICE_NAME containers restarted successfully"
+    success "$SERVICE_NAME containers restarted successfully"
 else
-    log "⚠️  Warning: Some containers may not be running properly"
+    log "Warning: Some containers may not be running properly"
 fi
 
 log "Running Restic maintenance (forget old snapshots)..."
-# Keep: 7 daily, 4 weekly, 12 monthly, 2 yearly
-restic forget \
-    --tag "$SERVICE_NAME" \
-    --keep-daily 7 \
-    --keep-weekly 4 \
-    --keep-monthly 12 \
-    --keep-yearly 2 \
-    --prune
+# Apply retention policy using template function
+apply_retention "$SERVICE_NAME"
 
 log "=== Backup completed successfully ==="
 
 # Show backup statistics
 log "Current repository stats:"
-restic stats --mode raw-data
+restic stats --mode raw-data
\ No newline at end of file
diff --git a/services/paperless/restore b/services/paperless/restore
index deb60ff..092a630 100755
--- a/services/paperless/restore
+++ b/services/paperless/restore
@@ -8,11 +8,11 @@
 
 set -euo pipefail
 
+# Load template configuration
+source "$(dirname "$(dirname "$(dirname "$0")")")/backup/service-script-template.sh"
+
 # Configuration
-readonly SERVICE_NAME="paperless"
-readonly SERVICE_DIR="/home/citadel/services/$SERVICE_NAME"
 readonly TEST_DIR="$SERVICE_DIR/test-restore"
-readonly CONFIG_FILE="/home/citadel/backup/restic.conf"
 readonly SCRIPT_NAME=$(basename "$0")
 
 # Colors