Coraline Ada Ehmke is a speaker, writer, open source advocate and technologist with over 20 years of experience in developing apps for the web. She works diligently to promote diversity and inclusivity in open source and the tech industry. She was recognized for her work with a Ruby Hero award in 2016. Coraline is the creator of the Contributor Covenant, the most popular open source code of conduct in the world (with over 15,000 adoptions including JRuby, Swift, F# and Rails.) She works for GitHub as a senior engineer on a team devoted to creating community management and anti-harassment tools.