Join us in an open-source collaborative effort aimed at (i) building in silico fruit fly brain circuits, and (ii) in vivo validation of these circuits. Neurokernel: An open source platform for emulating fruit fly brains on GPUs http://neurokernel.github.io Neurokernel Requests for Comments (RFCs): http://neurokernel.github.io/docs.html Aurel A. Lazar http://www.bionet.ee.columbia.edu