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TordlWalletProtocols
This repository documents various methods for securely backing up and storing bitcoins.
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Coldcard works great. Tho I'm pretty disappointed coldcard renegged on having its firmware open source. I might recommend that if you have multiple types of hardware wallets, you might want to consider a multisig wallet that incorporates your ledger and your coldcard. The Tordl Wallet Protocols have holistic guides on how to do that. A ledger+coldcard multisig wallet is far far more secure than a single-sig wallet of any kind.