2019 Developer Circles from Facebook Community Challenge
Online
Build software using React360, Spark AR, or HTML5 Games to give people the power to connect with friends and family, find communities and grow businesses.
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$167,500 in prizes
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Winners announced
- 12155 participants
![[Online] BUIDL - Boston Blockchain Week Hackathon](http://challengepost-s3-challengepost.netdna-ssl.com/photos/production/challenge_thumbnails/000/802/981/datas/medium.png)
