What really gave me a hard time was finding out the FBX administrator doesn’t have the privileges for performing tasks with apt.
I know the commands “sudo” and “su” but it took me quite a while searching the docs to realize I had to combine these two in order to become root. Very puzzling for me, I still don’t grasp the underlying concepts.
But the documentation helped me find my way, so thanks for this as well!
Edit: How can I mark this topic as solved? I can’t seem to find this option.