Thu, 23 Apr 2026 21:00 - Fri, 24 Apr 2026 02:00 Overview We’re doing it again this year! RubyKaraoke! In sync with RubyKaigi 2026, we're excited to host #rubykaraoke in Japan, the birthplace of karaoke. Mark your calendars for the night of April 23th (Thursday), during the second day of Ruby…