The export-mnemonic command
zallet export-mnemonic enables a BIP 39 mnemonic to be exported from a Zallet wallet.
The command takes the UUID of the account for which the mnemonic should be exported. You
can obtain this from a running Zallet wallet with zallet rpc z_listaccounts.
The mnemonic is encrypted to the same age identity that the wallet uses to internally
encrypt key material. You can then use a tool like [rage] to decrypt the resulting
file.
$ zallet export-mnemonic --armor 514ab5f4-62bd-4d8c-94b5-23fa8d8d38c2 >mnemonic.age
$ echo mnemonic.age
-----BEGIN AGE ENCRYPTED FILE-----
...
-----END AGE ENCRYPTED FILE-----
$ rage -d -i path/to/encrypted-identity.txt mnemonic.age
some seed phrase ...