On 22 July 2016 at 21:03, Bastián Díaz <diaz.bastian(a)openmailbox.org> wrote:
Tuned-gtk not appear in GNOME software because it does not
have a "appdata" file
Correct. The AppData file ideally needs to be maintained upstream,
with translations, screenshots and all the usual things. Nothing these
days shows up in gnome-software unless it has an AppData file.
Richard