Hiroshi SHIBATA

@hsbt

@[email protected]: A member of Ruby core/RubyGems/Bundler team, Administrator of *.ruby-lang.org, github.com/hsbt, Fellow at ANDPAD, Inc.

Tokyo, Japan

hsbt.org/diary/

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Hiroshi SHIBATA
@hsbt
Dec 19, 2025
Ruby との出会いは @gotoken が26年くらい前に高専の授業で「Ruby って言う面白い言語があってさあ」と応用数学の講義無視して1コマ延々と ruby-math の話をしたのがきっかけです #rubyrelease30th
Hiroshi SHIBATA
@hsbt
12h
@dhh will join Omarchy "Tokyo Night" on October 14. If you want to talk about Omarchy's Japanese language setup or the Linux desktop, this is a great chance to do it with dhh in person. omarchy-tokyo.connpass.com/event/407638/
Masaki Komagata
@komagata
21h
Omarchy Tokyo Night開催！ - 駒形電産 docs.komagata.org/6486 #omarchy #omarchy_tokyo
GIF
Hiroshi SHIBATA
@hsbt
Sep 29
Here is today's AI-generated code from me. github.com/ruby/ruby/pull… YJIT finally works on Windows (mswin), about 2x faster than the interpreter on ruby-bench's headline benchmarks.
YJIT: Support Windows (mswin x64) by hsbt · Pull Request #19114 · ruby/ruby
From github.com
Hiroshi SHIBATA
@hsbt
Sep 16
Since Jan 1, I've received 200+ vulnerability reports and reviewed every one. Most looked AI-generated, and some days different people reported the exact same issue. I assigned just four CVEs. Over 98% were AI slop or unverified. This is the daily reality of OSS.
5
Hiroshi SHIBATA
@hsbt
Sep 16
RubyGems 4.0.21 is out now: blog.rubygems.org/2026/09/16/4.0… This release is regular bug fix release. Bundler prevent to update beta version with `bundle update --bundler` now.
4.0.21 Released
From blog.rubygems.org