I'm Naiyi Li from Orbeus - you can choose whether to upload your binary or not. If you choose to upload you binary, you can attach the link to the github project in the submission.
An example is given here:http://challengepost.com/software/deja-vu. Let me know if you have further questions! You can reach me at firstname.lastname@example.org. Thanks!
Only 6 hours left - take your time and carry on the good work!