Facebook Hackathons: AR Online Augment your world with Spark AR $7,000 in prizes Winners announced 1321 participants
2018 Developer Circles Community Challenge Online Build solutions that give people the power to build community and bring the world closer together. $230,000 in prizes Winners announced 5236 participants
Local Hack Day IV MLH Local Hack Day hosted by GitHub is back for our fourth year. Build your community with an awesome 12 hours of hacking. Non-monetary prizes Dec 2 – 3, 2017 626 participants
