gtkmm3-tutorial from GNOME:Next 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/GNOME:Next/openSUSE_Factory/GNOME:Next.repo zypper refresh zypper install gtkmm3-tutorial
For gcc14 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/GNOME:Next/gcc14/GNOME:Next.repo zypper refresh zypper install gtkmm3-tutorial