libqt5-qtbase from home:fusionfuture:branches:KDE:Qt:5.15 project

Select Your Operating System

For TW run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:fusionfuture:branches:KDE:Qt:5.15/TW/home:fusionfuture:branches:KDE:Qt:5.15.repo
zypper refresh
zypper install libqt5-qtbase