2026-04-24（金）19:00 - 2026-04-25（土）01:30 pixiv presents Ruby Illuminations 2026 日本語版はこの下にあります。 What is RubyIlluminations 2026? In previous years, pixiv has hosted "RubyMusicMixin," a space where RubyKaigi attendees could enjoy music and networking. Thanks to your s…