I installed insync 3.5.3.50130 using the ppfeufer-gentoo-overlay on Gentoo Linux. When I
$ insync add_account -h
to sync with Google Drive it suggests getting the AUTH_CODE from Google. This leads to
This app is blocked This app tried to access sensitive info in your Google Account. To keep your account safe, Google blocked this access.
Any debugging hints will be gratefully received.