How to register custom Hydration strategies?

I'd like to use php8.1 built in enums in doctrine backed entities.
According to https://www.doctrine-project.org/projects/doctrine-laminas-hydrator/en/3.3/enum-strategy.html#using-enums-with-php-8-1 I need to create and register a custom hydration strategy for each enum I want to use.

Is there any configuration key where I can easily register them or do I have to use a Delegator on the DoctrineHydrator?