-- .zshrc
DISPLAY=1 SSH_ASKPASS="readfrom1p.sh" ssh-add private_ssh.key < /dev/null
-- readfrom1p.sh
op read "op://Personal/private key/password"
--
Just like that, filling in secrets on Terminl is now one Touch ID away.
Ref:
https://developer.1password.com/docs/cli/secret-references/
https://unix.stackexchange.com/a/571744