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I'm also very curious on that matter . Are there some specs on how to
change app behaviour or is the current style just to rewrite the apps
for a phone/tablet/desktop factor . The latter seems suboptimal . It
would be great to have 3 GUIs for the same app backend (you download the
same app, but it loads differently under different form factors) , but
as far as I know everyone's pushing QML for writing the full apps , so
there's no abstraction between GUI<->engine .