dolphin-emu from home:RedDwarf:NonFree project
Select Your Operating System
Add repository and install manually
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:RedDwarf:NonFree/openSUSE_Factory/home:RedDwarf:NonFree.repo zypper refresh zypper install dolphin-emu