So, in exchange for some help with the packaging, i could in the end offer a GUI for getting OATH Keys from the YubiKey on Sailfish. Proof of Concept is attached 
. At the moment the installation of all packages is a kind of a to big effort for average users and after every reboot the pcscd.service has to be restarted, as I don’t know how to tell the pcsc lite package to hook in there after installation correctly.
For curious hackers: Code, Packages. Details are in the GitHub Issue linked above. Help, of course, is also welcome. Once again: you need to install a lot manual before the App can work at the moment - so it is really less than a alpha version now!
