Drupal 8.x

Hello,
I'm pretty new to Drupal so please go "easy" on me. I have a content type called Licences and another called Courses, in the Courses content type multiple Licences can be referenced using an entity reference. My goal is to show Courses in their respective Licences, I tried to use a Block View but I had no idea how to configure it correctly tho that method might be wrong as well.
Thanks.

In Drupal 8+, how do I set configuration in settings.local.php? For example, the site name can be retrieved like this:

$site_name = \Drupal::config('system.site')->get('name');

I ought to be able to set this value in settings.local.php something like this:

$config['system.site']['name'] = 'My Site Name';

This doesn't work. How do I do this?

I would like to build a search view with these feature:
In the pages display only one field that searches in taxonomy terms and in some text fields.
In the result page show the other secondary options (city, region, etc) to refine the result.
I know that as backend I will have to use Apache Solr, but in the meantime I would like to try to build the view to see if I am following the right way.

Is it possible to do it with views, and if so where can I find some examples? I've found something, but nothing that looks like it...

I have created a module that generates a license in the user field and I want to run its function when the user has completed the order (Paid).

I would be glad for any example or link, I just started creating modules)

If there is no "purchase completed" event, how can I view all commerce events?

Question on drupal.stackexchange.com

Does anyone have a solution for the rules_ban errors when the update.php script is called? I understand that the module has been deprecated but it seems that something was missed causing the errors.

Thanks in advance