Passphrase german

is it possible to generate german passphrase for examle mein-haus-auto-urlaub ?

as far as I know only some secret backends support password policies, and they are also limited to random picks of charsets, so no Wörterbuch (dictionary) is available, and I am also quite sure that from a security point of view it’s less secure than a truly random secret.
You also have to keep in mind that Vault was designed for Machine-to-Machine interaction.

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