diff --git a/manifest.json b/manifest.json
index 7530005..ffc5821 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Lightweight CalDAV+CardDAV server",
         "fr": "Serveur CalDAV+CardDAV léger"
     },
-    "version": "0.4.6",
+    "version": "0.4.6~ynh1",
     "url": "http://baikal-server.com/",
     "license": "GPL-3.0",
     "maintainer": {
diff --git a/scripts/backup b/scripts/backup
index e96b150..9a7aca7 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -19,6 +19,7 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -31,23 +32,33 @@ db_name=$(ynh_app_setting_get $app db_name)
 #=================================================
 # BACKUP THE APP MAIN DIR
 #=================================================
+ynh_print_info "Backing up the main app directory..."
 
 ynh_backup "$final_path"
 
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
 #=================================================
+ynh_print_info "Backing up nginx web server configuration..."
 
 ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
 
 #=================================================
 # BACKUP THE PHP-FPM CONFIGURATION
 #=================================================
+ynh_print_info "Backing up php-fpm configuration..."
 
 ynh_backup "/etc/php/7.0/fpm/pool.d/$app.conf"
 
 #=================================================
 # BACKUP THE MYSQL DATABASE
 #=================================================
+ynh_print_info "Backing up the MySQL database..."
 
 ynh_mysql_dump_db "$db_name" > db.sql
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
diff --git a/scripts/install b/scripts/install
index f34b98c..075beb9 100644
--- a/scripts/install
+++ b/scripts/install
@@ -29,6 +29,7 @@ app=$YNH_APP_INSTANCE_NAME
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
 #=================================================
+ynh_print_info "Validating installation parameters..."
 
 final_path=/var/www/$app
 test ! -e "$final_path" || ynh_die "This path already contains a folder"
@@ -42,6 +43,7 @@ ynh_webpath_register $app $domain $path_url
 #=================================================
 # STORE SETTINGS FROM MANIFEST
 #=================================================
+ynh_print_info "Storing installation settings..."
 
 ynh_app_setting_set $app domain $domain
 ynh_app_setting_set $app path $path_url
@@ -51,6 +53,7 @@ ynh_app_setting_set $app path $path_url
 #=================================================
 # CREATE A MYSQL DATABASE
 #=================================================
+ynh_print_info "Creating a MySQL database..."
 
 db_name=$(ynh_sanitize_dbid $app)
 ynh_app_setting_set $app db_name $db_name
@@ -59,6 +62,7 @@ ynh_mysql_setup_db $db_name $db_name
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_print_info "Setting up source files..."
 
 ynh_app_setting_set $app final_path $final_path
 # Download, check integrity, uncompress and patch the source from app.src
@@ -67,6 +71,7 @@ ynh_setup_source "$final_path"
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
+ynh_print_info "Configuring nginx web server..."
 
 # Create a dedicated nginx config
 ynh_add_nginx_config
@@ -74,6 +79,7 @@ ynh_add_nginx_config
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
+ynh_print_info "Configuring system user..."
 
 # Create a system user
 ynh_system_user_create $app
@@ -81,6 +87,7 @@ ynh_system_user_create $app
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
+ynh_print_info "Configuring php-fpm..."
 
 # Create a dedicated php-fpm config
 ynh_add_fpm_config
@@ -90,6 +97,7 @@ ynh_add_fpm_config
 #=================================================
 # INITIALIZE DATABASE
 #=================================================
+ynh_print_info "Configuring baikal..."
 
 ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_name" \
     < "${final_path}/Core/Resources/Db/MySQL/db.sql"
@@ -142,6 +150,7 @@ chmod 640 "$final_path/Specific/"{config.php,config.system.php}
 #=================================================
 # SETUP SSOWAT
 #=================================================
+ynh_print_info "Configuring SSOwat..."
 
 # Allow public access on /
 ynh_app_setting_set $app skipped_uris "/"
@@ -151,5 +160,12 @@ ynh_app_setting_set $app protected_uris "/admin/"
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_print_info "Reloading nginx web server..."
 
 systemctl reload nginx
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Installation of $app completed"
diff --git a/scripts/remove b/scripts/remove
index 73d2504..f9e41eb 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -12,6 +12,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -24,6 +25,7 @@ final_path=$(ynh_app_setting_get $app final_path)
 #=================================================
 # REMOVE THE MYSQL DATABASE
 #=================================================
+ynh_print_info "Removing the MySQL database"
 
 # Remove a database if it exists, along with the associated user
 ynh_mysql_remove_db $db_name $db_name
@@ -31,6 +33,7 @@ ynh_mysql_remove_db $db_name $db_name
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================
+ynh_print_info "Removing app main directory"
 
 # Remove the app directory securely
 ynh_secure_remove "$final_path"
@@ -38,6 +41,7 @@ ynh_secure_remove "$final_path"
 #=================================================
 # REMOVE NGINX CONFIGURATION
 #=================================================
+ynh_print_info "Removing nginx web server configuration"
 
 # Remove the dedicated nginx config
 ynh_remove_nginx_config
@@ -45,6 +49,7 @@ ynh_remove_nginx_config
 #=================================================
 # REMOVE PHP-FPM CONFIGURATION
 #=================================================
+ynh_print_info "Removing php-fpm configuration"
 
 # Remove the dedicated php-fpm config
 ynh_remove_fpm_config
@@ -54,6 +59,13 @@ ynh_remove_fpm_config
 #=================================================
 # REMOVE DEDICATED USER
 #=================================================
+ynh_print_info "Removing the dedicated system user"
 
 # Delete a system user
 ynh_system_user_delete $app
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Removal of $app completed"
diff --git a/scripts/restore b/scripts/restore
index e2542bc..02cc555 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -19,6 +19,7 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -30,6 +31,7 @@ db_name=$(ynh_app_setting_get $app db_name)
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
 #=================================================
+ynh_print_info "Validating restoration parameters..."
 
 ynh_webpath_available $domain $path_url \
 	|| ynh_die "Path not available: ${domain}${path_url}"
@@ -47,12 +49,14 @@ ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
+ynh_print_info "Restoring the app main directory..."
 
 ynh_restore_file "$final_path"
 
 #=================================================
 # RESTORE THE MYSQL DATABASE
 #=================================================
+ynh_print_info "Restoring the MySQL database..."
 
 db_pwd=$(ynh_app_setting_get $app mysqlpwd)
 ynh_mysql_setup_db $db_name $db_name $db_pwd
@@ -61,6 +65,7 @@ ynh_mysql_connect_as $db_name $db_pwd $db_name < ./db.sql
 #=================================================
 # RECREATE THE DEDICATED USER
 #=================================================
+ynh_print_info "Recreating the dedicated system user..."
 
 # Create the dedicated user (if not existing)
 ynh_system_user_create $app
@@ -84,6 +89,13 @@ ynh_restore_file "/etc/php/7.0/fpm/pool.d/$app.conf"
 #=================================================
 # RELOAD NGINX AND PHP-FPM
 #=================================================
+ynh_print_info "Reloading nginx web server and php-fpm..."
 
 systemctl reload php7.0-fpm
 systemctl reload nginx
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Restoration completed for $app"
diff --git a/scripts/upgrade b/scripts/upgrade
index c50b32e..e60c547 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -12,6 +12,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -23,6 +24,7 @@ db_name=$(ynh_app_setting_get $app db_name)
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
+ynh_print_info "Ensuring downward compatibility..."
 
 # If final_path doesn't exist, create it
 if [ -z $final_path ]; then
@@ -39,6 +41,7 @@ fi
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
+ynh_print_info "Backing up the app before upgrading (may take a while)..."
 
 # Backup the current version of the app
 ynh_backup_before_upgrade
@@ -61,6 +64,7 @@ path_url=$(ynh_normalize_url_path $path_url)
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_print_info "Upgrading source files..."
 
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source "$final_path"
@@ -68,6 +72,7 @@ ynh_setup_source "$final_path"
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
+ynh_print_info "Upgrading nginx web server configuration..."
 
 # Create a dedicated nginx config
 ynh_add_nginx_config
@@ -75,6 +80,7 @@ ynh_add_nginx_config
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
+ynh_print_info "Making sure dedicated system user exists..."
 
 # Create a dedicated user (if not existing)
 ynh_system_user_create $app
@@ -82,6 +88,7 @@ ynh_system_user_create $app
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
+ynh_print_info "Upgrading php-fpm configuration..."
 
 # Create a dedicated php-fpm config
 ynh_add_fpm_config
@@ -91,6 +98,7 @@ ynh_add_fpm_config
 #=================================================
 # UPGRADE BAIKAL
 #=================================================
+ynh_print_info "Upgrading baikal..."
 
 # Run Baikal upgrade
 php "${final_path}/bin/upgrade.sh"
@@ -102,6 +110,7 @@ grep --files-with-matches --recursive "CSRF_TOKEN|s:" /var/lib/php/sessions | xa
 #=================================================
 # UPGRADE BAIKAL CONFIGURATION
 #=================================================
+ynh_print_info "Upgrading baikal configuration..."
 
 bk_conf="${final_path}/Specific/config.php"
 
@@ -157,6 +166,7 @@ chmod 640 "$final_path/Specific/"{config.php,config.system.php}
 #=================================================
 # SETUP SSOWAT
 #=================================================
+ynh_print_info "Upgrading SSOwat configuration..."
 
 # Allow public access on /
 ynh_app_setting_set $app skipped_uris "/"
@@ -166,5 +176,12 @@ ynh_app_setting_set $app protected_uris "/admin/"
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_print_info "Reloading nginx web server..."
 
 systemctl reload nginx
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Upgrade of $app completed"