Just very happy and in the middle of all this bad stuff going around the world, I would like to thank everyone here and especially Tom, for all the knowledge in this forum and on YouTube.
So far, I have XCP-NG up and running. I also have Xen Orchestra - did that by importing the VM mentioned on the Git-page.
I have my first VM up and discovered a couple of things.
First I tried installing guest tools by installing from the Debian repositories. It could not be found.
Then I tried doing it by adding it from the included “CD”. I did that while being logged in with my login and su (my VM is a minimal Debian 10). That gave me a couple of errors.
So instead, I logged in as root from the console in XO and issued the same commands there. Pronto. It installed fine. I now have the Debian logo next to the VM name.
I also discovered that there seems to be good work going on to clean up the repositories. So this will hopefully soon be a trivial thing.
So I am now on to install Nginx Reverse Proxy Manager. As that one is distributed as a Docker image, I have new things to tinker with
Have a great week and please stay safe!