Yes I don't see how that's helpful.

It's quite opposite of what I'd want.

If you use a trezor hardware wallet (and probably other hardware wallets) you can deterministically regenerate -sk keys.

I use trezors various agents for AGE, FIDO2/passkey, ssh[0].

But you still need the backup some bits of material like stubs for some FIDO keys (not secret material) that need importing into fresh trezor devices.

It's approaching the never lose a key again levels.

Of course, I won't pretend there isn't an obvious issue. What if you lose the seed words or someone gains access. What if the software becomes incompatible, or trezor devices become expensive/change etc.

[0] https://github.com/romanz/trezor-agent

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littlecranky67 3 hours ago | parent [-]

cough ledger, cough coldcard cough, supply chain attacks cough cough

	▲	rustyhancock 3 hours ago \| parent [-]
		This attack on ledger was particularly impressive, with LTE modules and eSIMs used to exfiltrate secret material[0]. But ledger is one I wouldn't recommend even without these issues, they've previously stockpiled customer data which leaked and lead sustained targeted attacks on their customers. They've got some sort of method of getting the secret keys out of the secure elements - which makes you think what's the point at all? Oh so they can sell you a backup service subscription for your keys. Which were meant to never leave your device. [0] https://www.coindesk.com/tech/2026/10/13/ledger-says-spy-chi...