This app allows to add checks to Nextcloud initialization.

1. Place this app in nextcloud/apps/;

2. Add a php file with desired check into folder check;

3. Enable app in Nextcloud.

There is a sample in file check_sample.php.dist, that checks if browser is Firefox* and denies user to use Nextcloud. For testing it, rename file as check_sample.php. So, in the next request you will see a message and application will be aborted.

* Firefox was chosen as example only because it is free

InitialCheck by fgsl