https://gitlab.com/wikisuite/wikisuite-packages/-/blob/main/wikisuite-installer calls http://software.virtualmin.com/gpl/scripts/install.sh
Let's start experimenting.
Before sudo bash wikisuite-installer in How to install WikiSuite, change the call from
http://software.virtualmin.com/gpl/scripts/install.sh (version 6.2.2 as of 2022-08-27)
to
https://raw.githubusercontent.com/virtualmin/virtualmin-install/master/virtualmin-install.sh (version 7.0.0-RC13 as of 2022-08-27)