Optimize data for large datasets

**Feature request**
It would be great to have backup for lib.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_backup` with default `false`.

Start by locating the lib directory and the existing configuration handling, then inspect how related options are defined and tested. Add the enable_backup option with a default of false and verify that it enables the requested backup behavior for production deployments.

Written by the indexing model from the issue text.