Feature request: Support importing DUO Mobile QR Codes
DUO Mobile is a Proprietary 2FA app that disallows backup of codes, presumably so you are forced to use their app. It is Android/iOS only. In addition, the process to import their QR code is non-standard. However DUO mobile's 2FA is a standard HOTP counter code, and the protocol for importing from their QR code is has been reverse engineered and tested to work:
https://github.com/chris4795/duo-cli/blob/master/duo_activate.py
I am requesting that this protocol be integrated into gnome-authenticator, so one is not forced to use the DUO mobile.