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I'd also like to throw this in -- deeper integration with something like Authy would be awesome since the API is open and easy to use. It's easy to keep this free on the Ryver side as well if teams bring their own API key to use Authy's OneTouch or SMS code features.


Another thing that would be nice is U2F, since Yubikeys and other FIDO-compliant devices are becoming more popular, although cross-browser support is still somewhat lacking.