What is hackathon and how to join one?

Presentation: Online meetup of the CaquiCoders community on July 18, 2018 about Hackathon, presented by Jessica Felix and I.
Slides: https://pt.slideshare.net/morgannagiovanellidesouza/o-que-hackathon-e-como-participar-de-um-106499845
Video: https://www.youtube.com/watch?v=3FtCyT0rIK8&list=PLbfZ76QGeLO_4K09aQzpGWQYAaKWSUclL&index=3