RubyKaigi Schedule.select

10:00

11:00

12:00

13:00

14:00

15:00

16:00

17:00

18:00

10:00 - 11:00

Japanese・Main Hall

Between Character and Character Encoding

Mari Imaizumi @ima1zumi

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Friends

11:10 - 11:40

Japanese・Main Hall

Make Parsers Compatible Using Automata Learning

Hiroya Fujinami @makenowjust

English・Sub Hall

Bringing Linux pidfd to Ruby

Maciej Mensfeld @maciejmensfeld

Japanese・Pearls Room

Introducing Type Guard to Steep

Takeshi KOMIYA @tk0miya

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Friends

11:50 - 12:20

English・Main Hall

The Evolution of the CRuby Build System

Yuta Saito @kateinoigakukun

English・Sub Hall

A side gig for RuboCop, the Bookworm code crawler

David T. Crosby @dafyddcrosby

Japanese・Pearls Room

Continuation is to be continued

Masayuki Mizuno @fetburner

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Friends

14:00 - 14:30

English・Main Hall

Deoptimization: How YJIT Speeds Up Ruby by Slowing Down

Takashi Kokubun @k0kubun

English・Sub Hall

Empowering Developers with HTML-Aware ERB Tooling

Marco Roth @marcoroth

Japanese・Pearls Room

Goodbye fat gem 2025

Sutou Kouhei @ktou

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Friends

14:40 - 15:10

Japanese・Main Hall

Ruby's Line Breaks

Yuichiro Kaneko @spikeolaf

English・Sub Hall

SDB: Efficient Ruby Stack Scanning Without the GVL

Mike Yang @yfractal

Japanese・Pearls Room

Automatically generating types by running tests

Takumi Shotoku @sinsoku_listy

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Friends

15:40 - 16:10

Japanese・Main Hall

State of Namespace

Satoshi Tagomori @tagomoris

English・Sub Hall

Embracing Ruby magic: Statically analyzing DSLs

Vinicius Stock @vinistock

English・Pearls Room

50.000 processed records per second: a CRuby & JRuby story

Cristian Planas @cristian_planas

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Friends

16:20 - 16:50

English・Main Hall

mruby/c and data-flow programming for small devices

Kazuaki Tanaka @kaz0505

English・Sub Hall

Parsing and generating SQLite's SQL dialect with Ruby

Stephen Margheim @fractaledmind

Japanese・Pearls Room

dRuby on Browser Again!

Yoh Osaki @youchan

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Friends

17:00 - 18:00

Japanese・Main Hall

TRICK 2025: Episode I

mame & the judges @tric

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Friends

10:00

11:00

12:00

13:00

14:00

15:00

16:00

17:00

18:00

10:00 - 11:00

English・Main Hall

Performance Bugs and Low-level Ruby Observability APIs

Ivo Anjo @KnuX

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Friends

11:10 - 11:40

Japanese・Main Hall

Dissecting and Reconstructing Ruby Syntactic Structures

Yudai Takada @ydah_

English・Sub Hall

Benchmark and profile every single change

Daisuke Aritomo @osyoyu

English・Pearls Room

Running JavaScript within Ruby

Kengo Hamasaki @hmsk

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Friends

11:50 - 12:20

English・Main Hall

ZJIT: Building a Next Generation Ruby JIT

Maxime Chevalier-Boisvert @maximecb

English・Sub Hall

Keeping Secrets: GitHub's ENV Security Learnings

Dennis Pacewicz @lyninx

Wei Lin Ngo @Creastery

Japanese・Pearls Room

Improvement of REXML and speed up using StringScanner

NAITOH Jun @naitoh

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Friends

14:00 - 14:30

Japanese・Main Hall

Writing Ruby Scripts with TypeProf

Yusuke Endoh @mametter

English・Sub Hall

Demystifying Ruby Debuggers: A Deep Dive into Internals

Dmitry Pogrebnoy @DmitryPogrebnoy

Japanese・Pearls Room

How to make the Groovebox

Yuya Fujiwara @asonas

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Friends

14:40 - 15:10

Japanese・Main Hall

MicroRuby: True Microcontroller Ruby

Hitoshi HASUMI @hasumikin

English・Sub Hall

Bazel for Ruby

Alex Rodionov @p0deje

Japanese・Pearls Room

RuboCop: Modularity and AST Insights

Koichi ITO @koic

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Friends

15:40 - 16:10

Japanese・Main Hall

Speeding up Class#new

Aaron Patterson @tenderlove

English・Sub Hall

You Can Save Lives With End-to-end Encryption in Ruby

Ryo Kajiwara @s01

Japanese・Pearls Room

Write you a Barrier - Automatic Insertion of Write Barriers

Martin J. Dürst @duerst

Joichiro Okoshi @joetake

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Friends

16:20 - 16:50

Japanese・Main Hall

Making TCPSocket.new "Happy"!

Misaki Shioi @coe401_

English・Sub Hall

From C extension to pure C: Migrating RBS

Alexander Momchilov @amomchilov

Japanese・Pearls Room

The Implementations of Advanced LR Parser Algorithm

Junichi Kobayashi @junk0612

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Friends

17:00 - 18:00

English & Japanese・Large Hall

Lightning Talks

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Friends

09:00

10:00

11:00

12:00

13:00

14:00

15:00

16:00

17:00

09:50 - 11:00

English & Japanese・Main Hall

Ruby Committers and the World

CRuby Committers @rubylangorg

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Friends

11:10 - 11:40

English・Main Hall

API for docs

Soutaro Matsumoto @soutaro

English・Sub Hall

Improving my own Ruby

monochrome @s_isshiki1969

English・Pearls Room

Running ruby.wasm on Pure Ruby Wasm Runtime

Uchio KONDO @udzura

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Friends

11:50 - 12:20

English・Main Hall

Eliminating Unnecessary Implicit Allocations

Jeremy Evans @jeremyevans0

English・Sub Hall

A taxonomy of Ruby calls

Alan Wu @alanwusx

Japanese・Pearls Room

The Ruby One-Binary Tool, Enhanced with Kompo

ahogappa @ahogappa

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Friends

14:00 - 14:30

English・Main Hall

Toward Ractor local GC

Koichi Sasada @ko1

English・Sub Hall

Inline RBS comments for seamless type checking with Sorbet

Alexandre Terrasa @Morriar

Japanese・Pearls Room

Road to Go gem

Go Sueyoshi @sue445

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Friends

14:40 - 15:10

Japanese・Main Hall

Analyzing Ruby Code in IRB

tomoya ishida @tompng

English・Sub Hall

Optimizing JRuby 10

Charles Nutter @headius

Japanese・Pearls Room

Porting PicoRuby to Another Microcontroller: ESP32

Yuhei Okazaki @Y_uuu

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Friends

15:40 - 16:10

English・Main Hall

Modular Garbage Collectors in Ruby

Peter Zhu @peterzhu2118

English・Sub Hall

The Challenges of Building sigstore-ruby

Samuel Giddins @segiddins

Japanese・Pearls Room

On-the-fly Suggestions of Rewriting Method Deprecations

Masato Ohba @ohbarye

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Friends

16:20 - 17:20

Japanese・Main Hall

Matz Keynote

Yukihiro "Matz" Matsumoto @yukihiro_matz

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Friends