Is there a market for used / old coldcards? I've thought about giving them to family and friends to teach about self-soveignty
#bitcoin #plebchain
Discussion
It's risky because you won't know if it's been tampered with. This is why it's recommended to buy directly from Coinkite.
Maybe Seedsigner might work for you. You make the hardware signer yourself with off-the-shelf parts that you can get used.