Use-case: Tarsnap is a cloud storage solution that allows you to make backups from the command line with an emphasis on encryption.
Is it open source?: Yes, see license below:
Redistribution and use in source and binary forms, without modification,
is permitted for the sole purpose of using the "tarsnap" backup service
provided by Tarsnap Backup Inc.
Git repo: DataDrake: Devs say not to use git.
@WhoeverChangedThis: I won't accept it if the tarball doesn't come from git.