I want to join some hackathons for the mobile developer in San Francisco. Any suggestion of below events...? Did anyone participate before? Thanks!~
https://www.eventbrite.com/e/atec-developer-creativity-challenge-2017-tickets-36985148575
https://www.eventbrite.com/e/mobile-tech-global-hackathon-tickets-35924312586?aff=es2
https://www.eventbrite.com/e/atec-developer-creativity-challenge-2017-tickets-36985148575
https://www.eventbrite.com/e/mobile-tech-global-hackathon-tickets-35924312586?aff=es2