My logs shows deprecation warning in a lot of places in this library. Of course not a critical problem, but it's nice with clean logs and future-proofing libraries.

Example:

Deprecated: Arrayy\Arrayy::get(): Implicitly marking parameter $array as nullable is deprecated, the explicit nullable type must be used instead in /voku/arrayy/src/Arrayy.php on line 2972 

Not my comfort zone, but could probably be automatically fixed with PHP-CS-FIxer or PHP CodeSniffer as mentioned in the bottom:

https://php.watch/versions/8.4/implicitly-marking-parameter-type-nullable-deprecated