Implement 2FA / OTP recovery codes
In case of loss of the device generating the OTP codes (think stolen / broken phone with Google Authenticator), SimpleMDM offers no way to recover one's account.
Most high-profile services (Google, Facebook, Github, etc.) when activating 2FA offer to save a list of one-time use recovery codes, used to gain access to one's account again. This makes it possible to setup 2FA on a new device.
It would be nice if SimpleMDM had such a feature.