Signing with `FaceID`/`TouchID`

[diepoe]

Could there be an option for auto-entering your private key passphrase with FaceID or TouchID? Because if you got long and secure passwords, it's often very unhandy to entering your password every time. I know that you could store your password in the Apple keychain or a third party password mangager, but I don't like giving my passphrase into the hands of companies.