RailsConf 2019 – Opening Keynote by David Heinemeier Hansson(youtube.com)1 points·by vvdcect·7년 전·0 commentsyoutube.comRailsConf 2019 – Opening Keynote by David Heinemeier Hanssonhttps://www.youtube.com/watch?v=VBwWbFpkltg0 commentsPost comment—