-`borg_encryption_passphrase` (optional): Password to use for repokey or keyfile. Empty if repo is unencrypted.
-`borgmatic_config_name` (optional): Name to use for the borgmatic config file. Defaults to `config.yml`
-`borg_exclude_patterns` (optional): Paths or patterns to exclude from backup. See [official documentation](https://borgbackup.readthedocs.io/en/stable/usage/help.html#borg-help-patterns) for more.