xdg-desktop-portal-dev 0.11-1 (armhf binary) in ubuntu bionic

 xdg-desktop-portal provides a portal frontend service for Flatpak, and
 possibly other desktop containment/sandboxing frameworks. This service
 is made available to the sandboxed application, and provides mediated
 D-Bus interfaces for file access, URI opening, printing and similar
 desktop integration features. See the xdg-desktop-portal package's
 description for more details.
 .
 This package contains development files for backends such as
 xdg-desktop-portal-gtk.