aos_requirements must return an array

Thanks for the report! I will look into this.

The Drupal API init the $requirements variable with [] and return the $requirements (empty array or not).

After upgrade to D10 and PHP8.3, i have an error without return.

Sorry I cannot reproduce running aos on D10 and D11. Is it a site breaking error? Is it a error in the logs? Can you please copy paste the error log in here?