Hints for xinv3d in main

xinvaders3d ⚙ amd64

asv-cid-desktopapp-is-not-rdns
xinvaders3d.metainfo.xml:4 - xinvaders3d
The component ID is not a reverse domain-name. Please update the ID to avoid future issues and be compatible with all AppStream implementations. You may also consider to update the name of the accompanying .desktop file to follow the latest version of the Desktop-Entry specification and use a rDNS name for it as well. In any case, do not forget to mention the new desktop-entry in a <launchable/> tag for this component to keep the application launchable from software centers and the .desktop file data associated with the metainfo data.
asv-screenshot-no-media
xinvaders3d.metainfo.xml:38 -
A screenshot must contain at least one image or video in order to be useful. Please add an <image/> to it.
asv-spdx-license-unknown
xinvaders3d.metainfo.xml:48 - GPL
The license ID was not found in the SPDX database. Please check that the license ID is written in an SPDX-conformant way and is a valid free software license.
asv-app-description-required
xinvaders3d.metainfo.xml -
The component is missing a long description. Components of this type must have a long description.

asv-description-first-para-too-short
xinvaders3d.metainfo.xml:10 - XInvaders3D is a 3D vector-based space-invaders clone for the X Window System.
The first `description/p` paragraph of this component might be too short (< 80 characters). Please consider starting with a longer paragraph to improve how the description looks like in software centers and to provide more detailed information on this component immediately in the first paragraph.
asv-developer-name-tag-deprecated
xinvaders3d.metainfo.xml:49 -
The toplevel `developer_name` element is deprecated. Please use the `name` element in a `developer` block instead.
asv-developer-info-missing
xinvaders3d.metainfo.xml -
This component contains no `developer` element with information about its author.