and after installing pkg-config-lite (btw why do I have a packet manager, when I have to manually install binaries to installl a python program?!) I ran into
error: Microsoft Visual C++ 14.0 or greater is required.
OMG I'll nether get, why all this console nonsense from the 60s of the last century of the last millenium ist still so popular. Of course I installed MS build tools from the recommended source in the error message. But the error message remains. Maybe some path thing, but there is no hint where to search.
Any tips on how I can move forward?