cassette-0.1.4-alt1.x86_64	freedesktop-categories	fail	Main Categories consist of those categories that every conforming desktop environment MUST support.(http://standards.freedesktop.org/menu-spec/latest/apa.html). None found in /usr/share/applications/io.github.Rirusha.Cassette.desktop. please, fix.; 
cassette-0.1.4-alt1.x86_64	freedesktop-desktop	info	desktop-file-validate utility printed the following message(s): /usr/share/applications/io.github.Rirusha.Cassette.desktop: hint: value item "Music" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: AudioVideo, or Education; /usr/share/applications/io.github.Rirusha.Cassette.desktop: hint: value "Music;" for key "Categories" in group "Desktop Entry" does not contain a registered main category; application might only show up in a "catch-all" section of the application menu;