assimp from KDE:Qt:6.4 project
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Add repository and install manually
For openSUSE Leap 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/KDE:Qt:6.4/openSUSE_Leap_15.4/KDE:Qt:6.4.repo zypper refresh zypper install assimp