Flatpak is available in the default repositories of all currently maintained openSUSE Leap and openSUSE Tumbleweed versions.
If you prefer a graphical installation, you can install Flatpak using a "1-click installer" from software.opensuse.org. If your distribution version is not shown by default, click Show under Unsupported distributions category and then select from the list.
Alternatively, install Flatpak from the command line using Zypper:
Flathub d adeg ifazen akk ansa ara d-tawiḍ isnasen n Flatpak. Akken ad t-tremdeḍṭ, selkem:
I wakken ad yemmed usebded, ales asekker n unagraw-ik·im. Tura yegra-d kan ad tesbeddeḍ isnasen.!