Nextcloud debugging

Set loglevel to 0 for debug logs:

services.nextcloud.settings.loglevel = 0;

Then, logs appear in the phpfpm-nextcloud.service and nextcloud-*.service logs:

sudo journalctl --follow --unit phpfpm-nextcloud --unit nextcloud-*.service

Make sure to set the loglevel back to the default 2 warning after debugging:

services.nextcloud.settings.loglevel = 2;