Ubuntu Server 20 Installation instructions

Hi all,

I hope somebody will be able to help with this issue.
I have found the kaltura project interesting and I started the installation in Ubuntu server 20, trying to follow the official instruction from the page

However the installation links are not valid anymore. e.g
wget http://installrepo.origin.kaltura.org/repo/aptn/focal/install_kaltura_all_in_1.sh

The script is not in that directory.

Anybody has found a successful and valid installation even in other Unix platforms that I could use?

Thanks a lot