A couple of publicly available alternatives I'm aware of include: - Girder: http://girder.readthedocs.io http://girder.readthedocs.io - Intake: https://github

A couple of publicly available alternatives I'm aware of include: - Girder: http://girder.readthedocs.io http://girder.readthedocs.io - Intake: https://github.com/ContinuumIO/intake https://github.com/ContinuumIO/intake I haven't used any of these, but I agree that the idea is quite compelling.