appstream 0.9.1-1ubuntu1 (arm64 binary) in ubuntu xenial

 AppStream is a cross-distribution effort for creating and sharing
 metadata of software components available in the package repositories
 of a distribution.
 It provides specifications for an unified software component metadata format,
 screenshot and icon services and various other metadata to describe software
 in repositories.
 The metadata can be used to show details about the actual software in software
 management tools instead of just listing packages, making software management
 intuitive and easy.
 .
 This package provides tools to generate, maintain and query the
 AppStream database of installed and available software, and enables AppStream
 integration in APT.
 .
 The 'appstreamcli' tool can be used for accessing the software component
 database as well as for working with AppStream XML metadata directly, including
 validating it for compliance with the specification.