Unfortunately I don't think anyone has done this yet.
I think solving the lack-of-display problem is far easier for FIDO/TOTP than GPG, as with GPG you could be signing arbitrary content that is difficult to validate on a small screen.
But FIDO/TOTP data are more structured and can be coerced into being displayed on the device's screen, as shown in this video [1].
I think solving the lack-of-display problem is far easier for FIDO/TOTP than GPG, as with GPG you could be signing arbitrary content that is difficult to validate on a small screen.
But FIDO/TOTP data are more structured and can be coerced into being displayed on the device's screen, as shown in this video [1].
[1]: https://youtu.be/KPmf9mbYKuo?t=163