Gem for segmented SFTP file downloads?

I'm trying to build a utility that will fetch large files or directories
off of a seedbox (or any SSH server, for that matter).
Individual connections are throttled,
so I have traditionally relied on a CLI utility called LFTP
to split large files into smaller segments to be downloaded in parallel.

I get the sense that nothing really compares to `Net::SFTP`,
but it doesn't look like it natively supports segmented downloads.
Does anyone know of a gem that does?

Alternately, I'm considering writing my own gem
to extend `Net::SFTP` to add support for segmented downloads.
But in order for this to work, I need an option like curl's `--range`
to specify a byte range to fetch for a given file,
and it doesn't look like `Net::SFTP` supports this either.
Have I missed something by any chance?
Is there another way to achieve the same thing?

—Ryan


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