A backend implementation for xdg-desktop-portal that is using Qt/KF5.

xdg-desktop-portal works by exposing a series of D-Bus interfaces known as
portals under a well-known name (org.freedesktop.portal.Desktop) and object
path (/org/freedesktop/portal/desktop).

The portal interfaces include APIs for file access, opening URIs, printing and
others.

WWW: https://kde.org/plasma-desktop/