Hints for quaternion in main

com.github.quaternion.desktop ⚙ amd64

missing-launchable-desktop-file
The MetaInfo file references a .desktop file with ID 'quaternion.desktop' in its launchable tag, but the file was not found in the same source tree. In order to be able to launch the software once it was installed, please place the MetaInfo file and its .desktop files in the same package.
asv-tag-empty
com.github.quaternion.appdata.xml:47 - translation
The mentioned tag is empty, which is highly likely not intended as it should have content.
translations-not-found
Unable to add languages information, even though a translation tag was present in the MetaInfo file. Please check that its value is set correctly, and all locale files are placed in the right directories (e.g. /usr/share/locale/*/LC_MESSAGES/ for Gettext .mo files).

asv-description-first-para-too-short
com.github.quaternion.appdata.xml:10 - Quaternion is a cross-platform desktop IM client for the Matrix protocol.
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.