Behavior for automate the update of username or user reference fields on your Entities.
The best way to install ipub/doctrine-blameable is using Composer:
$ composer require ipub/doctrine-blameable
After that you have to register extension in config.neon.
extensions: doctrineBlameable: IPub\DoctrineBlameable\DI\DoctrineBlameableExtension
Learn how to register and work with blameable behavior in documentation.