ngraham added a comment.
FWIW, @mak, `appstrealcli validate` doesn't like my launchable tag, though I can't see anything wrong with it. dev@dev-pc:~/repos/ksysguard$ (appstream-metadata) appstreamcli validate gui/org.kde.ksysguard.appdata.xml W - org.kde.ksysguard.appdata.xml:org.kde.ksysguard:7 Found invalid tag: 'launchable'. Non-standard tags must be prefixed with "x-". Validation failed: warnings: 1 REPOSITORY R106 KSysguard REVISION DETAIL https://phabricator.kde.org/D13772 To: ngraham, #plasma, apol, mak, pino Cc: pino, mak, plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart