It's great that you have Duo MFA support, but the monthly fees for Duo will vastly outstrip our LiquidFiles license costs (three times!) - such that it'll be hard for the business to accept (we'd potentially be looking at hundreds of users). Could you please consider adding support for TOTP (RFC 6238) so that our users could just use Google Authenticator (or one of the other apps)? That's currently how all our other corporate applications do 2FA Thanks.
TOTP has been added before several years, since LF v3.1.0. Please ensure your LF server is above that version, optimally on the latest branch. Then you can enable TOTP for users or groups. For more details please check this video guide: https://man.liquidfiles.com/authentication/totp.html