The hal thread with the RTC driver and the Guix thread are not working in parallel

Hi,
I currently trying to display the date ( time and hour) on a GUIX interface. However , the hal thread with the RTC driver and the Guix thread are not working in parallel.
I can see that the date is being printed on the console correctly but the screen does not show up the guix interface.
I have a hal/ thread and a second thread with the guix interface drivers.
The project that i'm basing to develop the rtc is the one attached.