diff --git a/scripts/backup b/scripts/backup
index deaac93..ce2eff4 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -1,27 +1,65 @@
 #!/bin/bash
-# vim:set noexpandtab:
 
-# Exit on command errors and treat unset variables as an error
-set -eu
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
 
-# Source app helpers
+source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
-# Get multi-instances specific variables
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+ynh_clean_setup () {
+	### Remove this function if there's nothing to clean before calling the remove script.
+	true
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
 app=$YNH_APP_INSTANCE_NAME
 
-# Retrieve app settings
-domain=$(ynh_app_setting_get "$app" domain)
+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)
 
-# Copy the app files
-final_path="/var/www/${app}"
-ynh_backup "${final_path}" "sources" 1
+#=================================================
+# STANDARD BACKUP STEPS
+#=================================================
+# BACKUP THE APP MAIN DIR
+#=================================================
 
-# Copy the nginx conf files
-ynh_backup "/etc/nginx/conf.d/${domain}.d/${app}.conf" "nginx.conf"
+ynh_backup "$final_path"
 
-# Copy the lstu conf file
-ynh_backup "${final_path}/lstu.conf" "lstu.conf"
-ynh_backup "/etc/systemd/system/lstu.service" "systemd_lstu.service"
-ynh_backup "/etc/logrotate.d/${app}" "logrotate_lstu"
-ynh_backup "/var/log/${app}/production.log" "production.log"
+#=================================================
+# BACKUP THE NGINX CONFIGURATION
+#=================================================
+
+ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# BACKUP THE POSTGRESQL DATABASE
+#=================================================
+
+ynh_psql_dump_db "$db_name" > db.sql
+
+#=================================================
+# SPECIFIC BACKUP
+#=================================================
+# BACKUP LOGROTATE
+#=================================================
+
+ynh_backup "/etc/logrotate.d/$app"
+
+#=================================================
+# BACKUP SYSTEMD
+#=================================================
+
+ynh_backup "/etc/systemd/system/$app.service"
\ No newline at end of file