TLDR: you convert your seedphrase to a QR code, print those QR codes and hide them. Use 13/25 word (passphrase), so even if some1 finds those QR codes, they wont be able to access the funds. You use airgapped SeedSigner to sign transactions, and BlueWallet or other waller of your choice to send them.
both are the same
The question is how can i keep the safe? Whats the best way to do so?
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Awesome. On that...
TLDR: you convert your seedphrase to a QR code, print those QR codes and hide them. Use 13/25 word (passphrase), so even if some1 finds those QR codes, they wont be able to access the funds. You use airgapped SeedSigner to sign transactions, and BlueWallet or other waller of your choice to send them.