Owncloud installation on Ubuntu Bionic

[Count Omega]

Hi guys,
I´m trying to set up an Owncloud server on the lastest Ubuntu bionic (18.04) on the Rock64.
Setting up an LAMP has just worked fine and I´m getting to the default

Code:

/localhost

site. Yet downloading and installing the packages needed fails everytime.  Following

https://download.owncloud.org/download/r...index.html

these steps

Code:

wget -nv https://download.owncloud.org/download/repositories/production/Ubuntu_18.04/Release.key -O Release.key
apt-key add - < Release.key
echo 'deb http://download.owncloud.org/download/repositories/production/Ubuntu_18.04/ /' > /etc/apt/sources.list.d/owncloud.list

work just fine. But apt-get update keeps ignoring this package:

Code:

https://attic.owncloud.com/org/download/repositories/production/Ubuntu_18.04

gets me
Error 404: Not found
I have no idea where that file is, sorry. Are you sure you typed in the correct URL?
So this one seems moved/dislocated, because neither

Code:

/stable

nor

Code:

/10.1

nor

Code:

/production

finds this one. Any ideas?

Thanks in advance

Count Omega