CI integration for Octave on OSX

[c.]

Hi all,

Brad from the macports project offered to help us set up a 
Continuous Integration (CI) OS X system online for Octave.

To get this started it would help to have the details of
the "build.x86_64-darwin" builder on Hydra:

http://hydra.nixos.org/jobset/gnu/octave-default#tabs-jobs

I am not an expert with the Hydra system can someone help with this?

Thanks,
c.