Phosh is the convergent shell authored by Purism as part of PureOS, it is the default shell used on the Librem 5 phone. Phosh is based on GNOME technologies (GTK, GSettings, DBus) and uses a custom Wayland compositor authored by Purism called Phoc.
PureOS on the Librem 5
The Librem 5 represents the opportunity for you to take back control and protect your private information, your digital life through free and open source software, open governance, and transparency.