PackageKit-gtk3-module from home:Lachu:SystemServices project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Lachu:SystemServices/openSUSE_Tumbleweed/home:Lachu:SystemServices.repo zypper refresh zypper install PackageKit-gtk3-module