diff --git a/README.md b/README.md
index ae604ff..f67b07a 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,71 @@
-# abantecart_ynh
-Plateforme pour la création de site Ecommerce / Business solution provider
+# Abantecart for YunoHost
 
-## FONCTIONNE / WORK <br>
-#### N'UTILSER QUE POUR TEST OU DEVELOPPEMENT !! / USE ONLY FOR TEST OR DEVELOPPMENT !!
-<br>
-<br>
-## Upgrade this package:
-`sudo yunohost app upgrade --verbose abantecart -u https://github.com/YunoHost-Apps/abantecart_ynh`
-<br>
-<br>
-level/niveau=2 (Installation et supression)
-              
+[![Integration level](https://dash.yunohost.org/integration/abantecart.svg)](https://dash.yunohost.org/appci/app/abantecart) ![](https://ci-apps.yunohost.org/ci/badges/abantecart.status.svg) ![](https://ci-apps.yunohost.org/ci/badges/abantecart.maintain.svg)  
+[![Install abantecart with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=abantecart)
+
+*[Lire ce readme en français.](./README_fr.md)*
+
+> *This package allows you to install abantecart quickly and simply on a YunoHost server.  
+If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/install) to learn how to install it.*
+
+## Overview
+Plateforme pour la création de site Ecommerce/Business solution provider
+
+**Shipped version:** 1.2.12
+
+## Screenshots
+
+![](Link to a screenshot of this app.)
+
+## Demo
+
+* [Official demo](Link to a demo site for this app.)
+
+## Configuration
+
+How to configure this app: From an admin panel, a plain file with SSH, or any other way.
+
+## Documentation
+
+ * Official documentation: Link to the official documentation of this app
+ * YunoHost documentation: If specific documentation is needed, feel free to contribute.
+
+## YunoHost specific features
+
+#### Multi-user support
+
+* Are LDAP and HTTP auth supported?
+* Can the app be used by multiple users?
+
+#### Supported architectures
+
+* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/abantecart%20%28Apps%29.svg)](https://ci-apps.yunohost.org/ci/apps/abantecart/)
+* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/abantecart%20%28Apps%29.svg)](https://ci-apps-arm.yunohost.org/ci/apps/abantecart/)
+
+## Limitations
+
+* Any known limitations.
+
+## Additional information
+
+* Other info you would like to add about this app.
+
+## Links
+
+ * Report a bug: https://github.com/YunoHost-Apps/abantecart_ynh/issues
+ * App website: Link to the official website of this app.
+ * Upstream app repository: Link to the official repository of the upstream app.
+ * YunoHost website: https://yunohost.org/
+
+---
+
+## Developer info
+
+Please send your pull request to the [testing branch](https://github.com/YunoHost-Apps/abantecart_ynh/tree/testing).
+
+To try the testing branch, please proceed like that.
+```
+sudo yunohost app install https://github.com/YunoHost-Apps/abantecart_ynh/tree/testing --debug
+or
+sudo yunohost app upgrade abantecart -u https://github.com/YunoHost-Apps/abantecart_ynh/tree/testing --debug
+```
diff --git a/check_process b/check_process
index 15d0de2..2141666 100644
--- a/check_process
+++ b/check_process
@@ -26,13 +26,5 @@
 		port_already_use=0
 		final_path_already_use=1
 ;;; Levels
-	Level 1=auto
-	Level 2=auto
-	Level 3=auto
-	Level 4=na   
 	Level 5=auto
-	Level 6=auto
-	Level 7=auto
-	Level 8=0
-	Level 9=0
-	Level 10=0
+
diff --git a/conf/nginx.conf b/conf/nginx.conf
index c3a9d98..b7f1a57 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -64,7 +64,7 @@ location __PATH__/ {
   # Execute and serve PHP files
   location ~ [^/]\.php(/|$) {
     fastcgi_split_path_info ^(.+?\.php)(/.*)$;
-    fastcgi_pass unix:/var/run/php/php7.0-fpm-__NAME__.sock;
+    fastcgi_pass unix:/var/run/php/php__PHPVERSION__-fpm-__NAME__.sock;
     fastcgi_index index.php;
     include fastcgi_params;
     fastcgi_param REMOTE_USER $remote_user;
diff --git a/conf/php-fpm.conf b/conf/php-fpm.conf
index bec24c0..5869080 100644
--- a/conf/php-fpm.conf
+++ b/conf/php-fpm.conf
@@ -33,7 +33,7 @@ group = __USER__
 ;                            (IPv6 and IPv4-mapped) on a specific port;
 ;   '/path/to/unix/socket' - to listen on a unix socket.
 ; Note: This value is mandatory.
-listen = /var/run/php/php7.0-fpm-__NAMETOCHANGE__.sock
+listen = /var/run/php/php__PHPVERSION__-fpm-__NAMETOCHANGE__.sock
 
 ; Set listen(2) backlog.
 ; Default Value: 511 (-1 on FreeBSD and OpenBSD)
diff --git a/manifest.json b/manifest.json
index b6dfdbc..78a38a4 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Create a E-commerce Website",
         "fr": "Créer un site ecommerce"
     },
-    "version": "1.2.12",
+    "version": "1.2.12~ynh1",
     "license": "free",
     "url": "abantecart.com",
     "maintainer": {
@@ -14,7 +14,7 @@
         "email": "win10@tutanota.com"
     },
     "requirements": {
-        "yunohost": ">= 3.0.0"
+        "yunohost": ">= 4.0.0"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/_common.sh b/scripts/_common.sh
index a9bf588..12c95d7 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -1 +1,21 @@
 #!/bin/bash
+
+#=================================================
+# COMMON VARIABLES
+#=================================================
+
+YNH_PHP_VERSION="7.3"
+
+extra_php_dependencies="php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-zip php${YNH_PHP_VERSION}-gd"
+
+#=================================================
+# PERSONAL HELPERS
+#=================================================
+
+#=================================================
+# EXPERIMENTAL HELPERS
+#=================================================
+
+#=================================================
+# FUTURE OFFICIAL HELPERS
+#=================================================
diff --git a/scripts/backup b/scripts/backup
index f963e1f..98466c5 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -6,12 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-if [ ! -e _common.sh ]; then
-	# Get the _common.sh file if it's not in the current directory
-	cp ../settings/scripts/_common.sh ./_common.sh
-	chmod a+rx _common.sh
-fi
-source _common.sh
+source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -24,12 +19,14 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info --message="Declaring files to be backed up..."
 
 app=$YNH_APP_INSTANCE_NAME
 
 final_path=$(ynh_app_setting_get $app final_path)
 domain=$(ynh_app_setting_get $app domain)
 db_name=$(ynh_app_setting_get $app db_name)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # STANDARD BACKUP STEPS
@@ -49,8 +46,8 @@ ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
 # BACKUP THE PHP-FPM CONFIGURATION
 #=================================================
 
-ynh_backup "/etc/php5/fpm/pool.d/$app.conf"
-ynh_backup "/etc/php5/fpm/conf.d/20-$app.ini"
+ynh_backup --src_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
+ynh_backup --src_path="/etc/php/$phpversion/fpm/pool.d/20-$app.conf"
 
 #=================================================
 # BACKUP THE MYSQL DATABASE
@@ -58,7 +55,6 @@ ynh_backup "/etc/php5/fpm/conf.d/20-$app.ini"
 
 ynh_mysql_dump_db "$db_name" > db.sql
 
-
 #=================================================
 # SPECIFIC BACKUP
 #=================================================
@@ -66,3 +62,9 @@ ynh_mysql_dump_db "$db_name" > db.sql
 #=================================================
 
 ynh_backup "/etc/logrotate.d/$app"
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info --message="Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
diff --git a/scripts/change_url b/scripts/change_url
index 4972ad6..2fc8bd2 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -22,13 +22,29 @@ new_path=$YNH_APP_NEW_PATH
 app=$YNH_APP_INSTANCE_NAME
 
 #=================================================
-# CHECK THE SYNTAX OF THE PATHS
+# LOAD SETTINGS
 #=================================================
+ynh_script_progression --message="Loading installation settings..." --time --weight=1
 
-test -n "$old_path" || old_path="/"
-test -n "$new_path" || new_path="/"
-new_path=$(ynh_normalize_url_path $new_path)
-old_path=$(ynh_normalize_url_path $old_path)
+# Needed for helper "ynh_add_nginx_config"
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before changing its url (may take a while)..." --time --weight=1
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+  # Remove the new domain config file, the remove script won't do it as it doesn't know yet its location.
+  ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+
+  # restore it if the upgrade fails
+  ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
 #=================================================
 # CHECK WHICH PARTS SHOULD BE CHANGED
@@ -51,6 +67,7 @@ fi
 #=================================================
 # MODIFY URL IN NGINX CONF
 #=================================================
+ynh_script_progression --message="Updating nginx web server configuration..." --time --weight=1
 
 nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
 
@@ -80,8 +97,23 @@ fi
 
 #=================================================
 # GENERIC FINALISATION
+#=================================================
+# START SYSTEMD SERVICE
+#=================================================
+ynh_script_progression --message="Starting a systemd service..." --time --weight=1
+
+ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
+
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_script_progression --message="Reloading nginx web server..." --time --weight=1
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Change of URL completed for $app" --time --last
 
-systemctl reload nginx
diff --git a/scripts/install b/scripts/install
index 3ccfe50..1b5d037 100644
--- a/scripts/install
+++ b/scripts/install
@@ -32,6 +32,7 @@ admin_email=$YNH_APP_ARG_ADMIN_EMAIL
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
 #=================================================
+ynh_script_progression --message="Validating installation parameters..." --weight=1
 
 final_path=/var/www/$app
 test ! -e "$final_path" || ynh_die "This path already contains a folder"
@@ -39,16 +40,8 @@ test ! -e "$final_path" || ynh_die "This path already contains a folder"
 # Normalize the url path syntax
 path_url=$(ynh_normalize_url_path $path_url)
 
-# Check web path availability
-ynh_webpath_available $domain $path_url
 # Register (book) web path
-ynh_webpath_register $app $domain $path_url
-
-#=================================================
-# INSTALL DEPENDENCIES
-#=================================================
-
-ynh_install_app_dependencies php-mysql php-zip php-gd
+ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
 
 #=================================================
 # Check password strength
@@ -67,23 +60,26 @@ ynh_app_setting_set "$app" admin_pass "$admin_pass"
 ynh_app_setting_set "$app" admin_name "$admin_name"
 ynh_app_setting_set "$app" admin_email "$admin_email"
 
+#=================================================
+# STANDARD MODIFICATIONS
 #=================================================
 # CREATE A MYSQL DATABASE
 #=================================================
-# If your app uses a MySQL database, you can use these lines to bootstrap
-# a database, an associated user and save the password in app settings
+ynh_script_progression --message="Creating a MySQL database..." --weight=2
 
 db_name=$(ynh_sanitize_dbid $app)
-ynh_app_setting_set $app db_name $db_name
-ynh_mysql_setup_db $db_name $db_name
+ynh_app_setting_set --app=$app --key=db_name --value=$db_name
+ynh_mysql_setup_db --db_user=$db_name --db_name=$db_name
+db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_script_progression --message="Setting up source files..." --weight=7
 
-ynh_app_setting_set $app final_path $final_path
+ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source "$final_path"
+ynh_setup_source --dest_dir="$final_path"
 
 #=================================================
 # SPECIFIC SETUP
@@ -115,7 +111,7 @@ popd
 #=================================================
 
 pushd $final_path/install/
-php cli_install.php install \
+php$phpversion cli_install.php install \
      --db_host=localhost \
      --db_user=$db_name \
      --db_password=$db_pwd \
@@ -133,30 +129,33 @@ popd
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
+ynh_script_progression --message="Configuring NGINX web server..." --weight=2
 
-# Create a dedicated nginx config
+# Create a dedicated NGINX config
 ynh_add_nginx_config
 
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
+ynh_script_progression --message="Configuring system user..." --weight=2
 
 # Create a system user
-ynh_system_user_create $app
+ynh_system_user_create --username=$app
 
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
 
 # Create a dedicated php-fpm config
-ynh_add_fpm_config
+ynh_add_fpm_config --phpversion=$YNH_PHP_VERSION --package="$extra_php_dependencies"
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # Set permissions
 #=================================================
 
 # file owned by www-data before checking permissions
-chown $app:$app $final_path -R
+chown -R $app: $final_path 
 
 #=================================================
 # SETUP LOGROTATE
@@ -183,5 +182,13 @@ fi
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_script_progression --message="Reloading NGINX web server..." --weight=2
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Installation of $app completed" --last
 
-systemctl reload nginx
diff --git a/scripts/restore b/scripts/restore
index 1918a4e..e5d53c3 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -6,11 +6,6 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-if [ ! -e _common.sh ]; then
-	# Get the _common.sh file if it's not in the current directory
-	cp ../settings/scripts/_common.sh ./_common.sh
-	chmod a+rx _common.sh
-fi
 source _common.sh
 source /usr/share/yunohost/helpers
 
@@ -32,6 +27,7 @@ path_url=$(ynh_app_setting_get $app path)
 final_path=$(ynh_app_setting_get $app final_path)
 db_name=$(ynh_app_setting_get $app db_name)
 db_pass=$(ynh_app_setting_get $app db_pass)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
diff --git a/scripts/upgrade b/scripts/upgrade
index 520985b..50df3ba 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -21,6 +21,7 @@ admin_name=$(ynh_app_setting_get $app admin_name)
 admin_pass=$(ynh_app_setting_get $app admin_pass)
 admin_email=$(ynh_app_setting_get $app admin_email)
 db_user=$(ynh_app_setting_get $app db_user)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY