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Sure, but then it is set to no-touch for every FIDO2 interaction I have. I don't want to touch for signing, but I want to touch when using it as a passkey, for instance.

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This is a per-credential setting, so you can have your SSH signing key be a no-touch key and still use touch confirmation for everything else.

(see "uv" option here https://fidoalliance.org/specs/fido-v2.0-ps-20190130/fido-cl... - the -sk key types in SSH are just a clever way of abusing the FIDO protocol to create a signing primitive)

Oh, I need to check this! Thanks!

Use the PIV applet for SSH and signing Git commits instead? Git supports S/MIME and SSH can use keys over PKCS#11 basically out-of-box on OSs that don't ship gpg-agent (that just interferes with SmartCard usage in general).

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