notify-osd-config from X11:Utilities 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/X11:Utilities/openSUSE_Tumbleweed/X11:Utilities.repo zypper refresh zypper install notify-osd-config
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Utilities/openSUSE_Factory_ARM/X11:Utilities.repo zypper refresh zypper install notify-osd-config