Conversation

it'd be nice if github had better support for rewriting history as part of a PR review process, even something really basic like squashing groups of commits
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one thing that the cryptocurrency people got right is that the hardware wallets have little screens on them so that you can confirm what you're actually signing on the trusted device, not the untrusted one
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There are some quite good options such as coldcardwallet.com with a high level of security. Trezor pioneered a great design for using a seed phrase + optional passphrase as the basis for an infinite number of derived keys in a hierarchy. Also N-of-M backups for seeds, etc.
Most traditional HSMs are far worse and have a lot to learn from the far superior approaches in good hardware wallets. Traditional HSMs don't have any reasonable answer to disaster recover for keys securely generated on the device or a way to confirm what's being done with them.
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