Explain further please. Does this mean it could function as a replacement for a seedsigner? Or used as a signing device for the seedplate?
First you could export child seeds via SeedQR from our Key Manager extension.
Next you'll be able to populate the Passport master seed from a SeedQR or Compact SeedQR. 🔥
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Discussion
Passport is not stateless, so it's not a drop in replacement for a device like a SeedSigner, but you could easily use one in a very similar way and get many of the other benefits Passport offers.