Refactor components for better readability

**Feature request**
It would be great to have serialization for controllers.

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

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

Start by locating the controller implementation, its configuration handling, and any existing serialization-related code or tests. Confirm how the new enable_serialization option is registered and defaults to false, then verify that enabling it provides controller serialization without changing the default behavior.

Written by the indexing model from the issue text.