User Account with specific role

i need to add users with specific permissions, any help?
Version 1.5.11 4

add the package spatie/laravel-permissions to your application. That way you can assign roles to your users.

Since the InvoicePlane is a CodeIgniter application, it’s going to be tricky.

InvoicePlane itself does not have roles and permissions.
They have 2 usertypes: clients and admins.

UnderDog, where can i find this package spatie/laravel-permissions ?