Unfortunately, my Nextcloud installation on an RPi 3 has failed, so I have been forced to reinstall it.
The installation of the system went smoothly as always, including the installation of Nextcloud and Letsencrypt.
Now, however, I am once again faced with the task of enabling https access.
My previous search here has unfortunately not yet been successful in forcing Nextcloud to use https with lighttpd.
I think lighttpd was the right choice for the Pi 3, but I no longer know how and where to set the appropriate entries.
I would be very grateful for any help with this problem.