Tobias, John, thank you for this explanation! My first thought was… oh, something broke during my installation. But I was only spoiled by not resetting my mind from the usual suspicious package managers. Next time I will think more about the nature of using a purely functional system, of course it makes sense.
Do you think it is worth to spend a sentence about this in the documentation (I must have skipped this if it is already there)? And, by the way, thank you for the warm welcome! I fully believe in the concept and philosophy, so count me as a new user, ready to stay. Kind regards, Martin