Why: A cool wrapper around docker containers, bring a very nice abstraction layer. Also easy tool for bringing your containers in production. Great for local development.
Open source: Yes - https://github.com/nanobox-io/nanobox
Direct link: https://d1ormdui8qdvue.cloudfront.net/installers/v2/linux/nanobox-2.tar.gz
Accepted for inclusion under the requirement that the individual that packages this must maintain it.
Given nobody has stepped up in the month since this has been accepted for inclusion to provide a patch and become the maintainer, marking as WONTFIX.