Asus tinker board s gpio

is there any possibility to control the gpio’s of a asus tinker board s like it is with a raspberry pi?
All I want is to control a fan (switching it on/off). With a raspi - no problem but with a tinker board I’ve been biting my teeth on for days… Even I was not able to install the official python lib and control it by pyscript …
Is anybody out there with the same issue or anybody solved it already?