This is a helper module for 🧪Acid Unit Adobe Commerce extensions to provide admin panel configuration and menu item.
There is no need to install it explicitly, it will be pulled up automatically as a dependency to other packages.
But in case you still have to have it for some reason in your root composer.json file,
you can install it with composer require acid-unit/module-admin command.
As long as you have at least Adobe Commerce 2.4.4 with running PHP 8.1 or newer,
everything should be fine.