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It's cool but I don't know why I need this. Why is it better than using a regular hardware wallet?

Better UX. If you've ever used a yubikey, it's easier to use than a hardware wallet.

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except you can recover a hardware wallet

you can't recover a yubikey

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Typically, you configure two yubikeys and keep them in separate locations.

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There are big tradeoffs being made here, so I wouldn't diminish those, but you can back up the private key stored on Yubikey.

The Yubikey isn't a signing device. It's a storage device.

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maybe you can recover from a backup file

but you can't deterministically rebuild from a seed phrase

yubikey can also be used to sign ssh, fido2, webauthn, pgp etc

edit - I see it is indeed a storage (not signing) device in this context

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Ok. I will take your word for it. Never used one.

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It's cool but I don't know why I need this. Why is it better than using a regular hardware wallet?
  1. costs $25, less than most HWWs
  2. can use for other 2FA and MFA
  3. not obvious for bitcoin, so won’t be on a “list” of ppl who buy bitcoin only products
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Good feedback

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Likely oriented mostly towards pre-coiners. Why to buy another device for Bitcoin when you already have YubiKey?

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