Rubyの安定版を保守する意義 / Why we maintain stable versions of Ruby?

WindowsにおけるRubyのエンコーディングの話 Ruby3版/Ruby's encoding on Windows at Ruby3

PIXIV TECH FES. short session / What kind of contribution to OSS is really pleased?

Internal of the image processing required on the developing of web applications

Schrödinger's branch, or Ruby is dead every year

talk about IO