diff --git a/scripts/backup b/scripts/backup
index 6ea8892..f99225d 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -32,6 +32,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
@@ -49,6 +50,12 @@ ynh_print_info --message="Declaring files to be backed up..."
 
 ynh_backup --src_path="$final_path"
 
+#=================================================
+# BACKUP THE DATA DIR
+#=================================================
+
+ynh_backup --src_path="$datadir" --is_big
+
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/install b/scripts/install
index 0c48d6c..152003a 100755
--- a/scripts/install
+++ b/scripts/install
@@ -198,6 +198,33 @@ ynh_add_fpm_config
 # ...
 #=================================================
 
+#=================================================
+# CREATE DATA DIRECTORY
+#=================================================
+ynh_script_progression --message="Creating a data directory..." --time --weight=1
+
+### Use these lines if you need to create a directory to store "persistent files" for the application.
+### Usually this directory is used to store uploaded files or any file that won't be updated during 
+### an upgrade and that won't be deleted during app removal
+### If you're not using these lines:
+###		- Remove the section "BACKUP THE DATA DIR" in the backup script
+###		- As well as the section "RESTORE THE DATA DIRECTORY" in the restore script
+
+datadir=/home/yunohost.app/$app
+ynh_app_setting_set --app=$app --key=datadir --value=$datadir
+
+mkdir -p $datadir
+
+# FIXME: this should be managed by the core in the future
+# Here, as a packager, you may have to tweak the ownerhsip/permissions
+# such that the appropriate users (e.g. maybe www-data) can access
+# files in some cases.
+# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
+# this will be treated as a security issue.
+chmod 750 "$datadir"
+chmod -R o-rwx "$datadir"
+chown -R $app:www-data "$datadir"
+
 #=================================================
 # ADD A CONFIGURATION
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index b0b605e..31b3158 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -34,6 +34,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
@@ -79,6 +80,25 @@ chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 
+#=================================================
+# RESTORE THE DATA DIRECTORY
+#=================================================
+ynh_script_progression --message="Restoring the data directory..." --time --weight=1
+
+ynh_restore_file --origin_path="$datadir" --not_mandatory
+
+mkdir -p $datadir
+
+# FIXME: this should be managed by the core in the future
+# Here, as a packager, you may have to tweak the ownerhsip/permissions
+# such that the appropriate users (e.g. maybe www-data) can access
+# files in some cases.
+# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
+# this will be treated as a security issue.
+chmod 750 "$datadir"
+chmod -R o-rwx "$datadir"
+chown -R $app:www-data "$datadir"
+
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
 #=================================================