diff --git a/README.md b/README.md
index 89232cf..84c3910 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,7 @@
 [![Docker Multiplatform Build ci](https://github.com/pifou25/docker-jeedom/actions/workflows/buildx-platform.yml/badge.svg)](https://github.com/pifou25/docker-jeedom/actions/workflows/buildx-platform.yml)
 ![Docker Pulls](https://img.shields.io/docker/pulls/pifou25/jeedom)
 ![GitHub forks](https://img.shields.io/github/forks/pifou25/docker-jeedom)
-
-[![Try in PWD](https://img.shields.io/badge/PWD-Play%20With%20Docker-blue?logo=docker)](https://labs.play-with-docker.com/?stack=https://raw.githubusercontent.com/pifou25/docker-jeedom/master/docker-compose.yml) Try in "Play-With-Docker" require a Docker account.
+[![Try in PWD](https://img.shields.io/badge/try-it_now!-blue?logo=docker&color=lemon)](https://labs.play-with-docker.com/?stack=https://raw.githubusercontent.com/pifou25/docker-jeedom/master/docker-compose.yml)
 
 # Jeedom - *Innovative Home Automation*
 <p align="center">
@@ -33,8 +32,9 @@ complete installation.
 
 ### Meaning of any keywords
 
-* `Full`
-* `Light`
+* `Full` = standalone
+* `Light` = without extra daemon
+* bullseye, buster, or bookworm is the Debian base version. The current default is `bullseye`
 * Jeedom Version `stable` (current = v4.3 = latest) or `beta` (future v4.4), see jeedom Git branches.
 * `debug` when the image also contains XDebug packages for PHP debug
 
@@ -61,9 +61,15 @@ You can run the standalone `latest` container as-it :
 ```
 docker run --name jeedom -d -v "$PWD/jeedom/":/var/www/html pifou25/jeedom
 ```
-
 ( --name = the container name, -d = detached mode, -v = mount the volume source:destination)
 
+## run a new container with an existing backup
+
+The init sequence may track and restore a previous Jeedom backup:
+```
+docker run --name jeedom -d -v "$PWD/backup":/var/www/html/backup pifou25/jeedom
+```
+
 ## Docker Compose for Debug and specific services
 
 The `docker-compose.yml` is an example to run several services (mariaDB, scheduler, ...) and the `light`
diff --git a/build/README.md b/build/README.md
index ed3f3c2..52332b0 100644
--- a/build/README.md
+++ b/build/README.md
@@ -6,7 +6,10 @@ After cloning the git repository, one may build the desired Docker image using t
 cd build
 docker build --target full_xdebug --build-arg JEEDOM_VERSION=V4-stable --tag jeedom:debug .
 ```
-* Available targets are: light_jeedom, light_xdebug, full_jeedom, full_xdebug
+* Available targets are: light_jeedom, full_jeedom
+* $DEBIAN is buster, bullseye or bookworm
+* for bookworm: add $PHP with minimal version 8. $PHP=7.3 is the default value for previous Debian versions
+* $XDEBUG = true / false
 * $JEEDOM_VERSION is beta or V4-stable (default) (or master for the unsupported Jeedom v3)
 
 ## Github Workflow
diff --git a/build/init.sh b/build/init.sh
index 505cf01..a458968 100644
--- a/build/init.sh
+++ b/build/init.sh
@@ -92,10 +92,11 @@ if [ ! -f "${WEBSERVER_HOME}/core/config/common.config.php" ]; then
       exit 1
     fi
 
-    if [ -d "/tmp/backup" ] && [ "$(ls -A /tmp/backup)" ]; then
-       log_info "found a backup, try to restore..."
-       cp /tmp/backup/* ${WEBSERVER_HOME}/backup
-       php ${WEBSERVER_HOME}/install/restore.php
+    # find latest backup and try to restore at the first container launch
+    if [ -d "${WEBSERVER_HOME}/backup" ] && [ "$(ls -A ${WEBSERVER_HOME}/backup)" ]; then
+      filename=$(ls -Art ${WEBSERVER_HOME}/backup)
+      log_info "found a backup, try to restore: ${filename}"
+      php ${WEBSERVER_HOME}/install/restore.php backup=${filename}
     fi
     log_info " ___ successfull new installation ! ___"
 fi
diff --git a/build/standalone/init.sh b/build/standalone/init.sh
index 5c3fd6d..a4db286 100644
--- a/build/standalone/init.sh
+++ b/build/standalone/init.sh
@@ -116,10 +116,11 @@ if [ ! -f "${WEBSERVER_HOME}/core/config/common.config.php" ]; then
   log_warn "vérification de jeedom"
   php ${WEBSERVER_HOME}/sick.php
 
-  if [ -d "/tmp/backup" ] && [ "$(ls -A /tmp/backup)" ]; then
-     log_info "found a backup, try to restore..."
-     cp /tmp/backup/* ${WEBSERVER_HOME}/backup
-     php ${WEBSERVER_HOME}/install/restore.php
+  # find latest backup and try to restore at the first container launch
+  if [ -d "${WEBSERVER_HOME}/backup" ] && [ "$(ls -A ${WEBSERVER_HOME}/backup)" ]; then
+     filename=$(ls -Art ${WEBSERVER_HOME}/backup)
+     log_info "found a backup, try to restore: ${filename}"
+     php ${WEBSERVER_HOME}/install/restore.php backup=${filename}
   fi
   log_info " ___ successfull new installation ! ___"