A flatpak package is available in Pisi 2.1 and newer. To install it, run the following as root:
Flathub d adeg ifazen akk ansa ara d-tawiḍ isnasen n Flatpak. Akken ad t-tremdeḍṭ, selkem:
To complete setup, restart your system. Now all you have to do is install apps!
Note: graphical installation of Flatpak apps may not be possible with Pisi GNU/Linux.