Owncloud 8, how to install add-ons?

Question

ownCloud/Nextcloud

The question concerns specifically version 8 of owncloud and applications from https://apps.owncloud.com/
judging by this:

The ownCloud App Store has been re-enabled in oC 8. Note that third-party apps are not supported.

Installing applications by simply copying them to the apps folder, as in version 7, does not work (an item appears in applications and the "enable" button, BUT after installation, the cloud itself stops working)
A big request to write those who really use add-ons for version 8, do not refer to mana need.

Answer 1

I will answer myself, you need to correct config.php, namely add

'appstoreenabled' => true,
  'appstoreurl' => "http://api.apps.owncloud.com/v1",
  'appcodechecker' => true,

Then we set it as usual
. I also made a separate section for third-party applications and put them in the apps2 folder:

'apps_paths' => array(
  0 => array(
    'path'=> '/var/www/owncloud/apps',
    'url' => '/apps',
    'writable' => true,
  ),
  1 => array(
    'path'=> '/var/www/owncloud/apps2',
    'url' => '/apps2',
    'writable' => true,
    ),
  ),