The one thing that I find missing in Nitrokey is that none of their regular keys support U2F alongside other 2FA methods, like Yubikey does. You need the separa

The one thing that I find missing in Nitrokey is that none of their regular keys support U2F alongside other 2FA methods, like Yubikey does. You need the separate U2F device for that, and I don't want to carry around multiple tokens if at all possible.