This application has a ribbon. If you pull a panel opens. For left-handed users it's a little uncomfortable, while opening the panel, arm occludes part of the screen and interferes with their intent to a quick glance.
One problem is that the application has no settings panel. And do not will have. The other one is that the app should not decide where put the ribbon based on device settings. The user should decide. (The app could suggest.)
I'm looking for ideas, suggestions to make it configurable (without a setting panel).
I think in something like this: