[nerdponx]

The name is very similar to the GPL software Duplicity, and the license is not a free software license.

[vertex-four]

While I'd agree it's similar, it's not the same.

Public projects on GitHub do not need to be under an open source license - there is absolutely no requirement for that anywhere.

[nerdponx]

Right, I was just explaining the "masquerading".

[detaro]

Also LGPLed https://www.duplicati.com/