RubyKaigi 2025
April 16th - 18th,2025 Ehime Prefectural Convention Hall (愛媛県県民文化会館) , Matsuyama, Ehime Keynote Speakers Yukihiro "Matz" Matsumoto Mari Imaizumi Ivo Anjo This work by RubyKaigi 2025 Team is licensed under CC BY 4.0. Speaker, session, and sponsor information is provided by respective parties and is not covered by this license.
RubyKaigi 2019
Jeremy Evans is the lead developer of the Sequel database library, the Roda web toolkit, the Rodauth authentication framework, and many other Ruby libraries. He has contributed to CRuby and JRuby, as well as many popular Ruby libraries. He is the maintainer of Ruby ports for the OpenBSD operating system.
Build your own tools - RubyKaigi 2018
A Ruby committer, Director of Network Applied Communication Laboratory, and Secretary general of the Ruby Association Now FLOSS is so common that even Microsoft use it and develop it. But do you have control over your tools for daily use? Building your own tools is the best way to develop software, and Ruby is the best language for such use. In this talk, I introduce my own tools and my developmen
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Julian is a Production Engineer at Shopify working on developer productivity and experience. Working on the Shopify application, one of the larger Ruby apps out there, has provided a good look into performance related topics in the Ruby ecosystem that he is anxious to share. As Ruby organizations scale, more developers join the team. More developers makes it increasingly difficult to enforce code
RubyKaigi 2020
Keynote speakers Yukihiro "Matz" Matsumoto Alan Wu Soutaro Matsumoto
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
I'm a software architect and engineer working with Castle.io. I have experience in a wide variety of business applications built using multiple Ruby frameworks. I’m particularly interested in code quality assurance and the way it affects the software development process. I’m an active OSS contributor and maintainer of various projects including Karafka – Framework used to simplify Apache Kafka-bas
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Member of SIAF LAB. Contributor/Translator of Sonic Pi. Software engineer at Farmnote. Last year I participated in a project called space-moere of SIAF2017 (Sapporo International Art Festival 2017). In the project we received Sonic Pi code generated in the stratosphere and had live performance using it. For the live performance, I made a small language called Petal. In this session, I will talk ab
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Benoit Daloze is a PhD student in Linz, Austria, researching concurrency in Ruby with TruffleRuby for the past several years. He has contributed to many Ruby implementations, including MRI, TruffleRuby and JRuby. He is the maintainer of ruby/spec, a test suite for the behavior of the Ruby programming language. Array and Hash are used in every Ruby program. Yet, current implementations either preve
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Dmitry works on developer productivity at Stripe, making it easy to confidently write maintainable, fast, and reliable code at Stripe by improving language, core abstractions, tools and educational materials. Before this, Dmitry worked on Scala compiler and parallel collection library. Lifelong nerd and engineer. Nowadays he works at Stripe mostly on developer productivity and infrastructural comp
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
RubyKaigi Anti Harassment Policy At RubyKaigi, we want you to be happy. We value your attendance. To achieve that, all participants are required to agree with the following anti harassment policy. Organizers will enforce this throughout the conference, party, and related social events. We expect cooperation from all participants to help ensure a safe environment for everybody. RubyKaigi is dedicat
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
SmartHR is a SaaS which focuses on increasing productivity in back offices. We take care of boredom paperwork by putting everything in the cloud. No more handwriting. No more waiting at Government Offices. Just fill out a simple online form and SmartHR generates digital versions of pension, employment/health insurance, and other HR-related documents – which can then be submitted to the appropriate
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Soutaro is CTO at SideCI, a code review automation service. The position is ideal for him because it allows testing his analyzers with its customers by adding new tool support. Last year, I had a presentation to introduce Steep, a type checker for Ruby. However, the implementation is so experimental that it cannot be used for production at all. In this talk, I will report the nine months progress
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Bozhidar is the author of RuboCop and the editor of the community Ruby and Rails style guides. Most people would probably describe him as an Emacs zealot (and they would be right). He's also quite fond of the Lisp family of languages, functional programming in general and Clojure in particular. Believe it or not, Bozhidar has hobbies and interests outside the realm of computers, but we won't bore
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
I'm a chief engineer and chief researcher at Pepabo Research and Development Institute, GMO Pepabo, Inc. mruby released in 2012 and 6 years have passed. I have embedded mruby into a lot of middleware like ngx_mruby, and have designed and implemented both extensibility and performance compatibility in middleware. I want to share not only the specifications and background but also design and impleme
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
Software engineer at Retrieva, inc. Author of Hyalite which is react like virtual DOM library. Member of Asakusa.rb, Chidoriashi.rb ISeq is a cross-section of the Ruby interpreter. If there is a parser that generates ISeq, it can run languages other than Ruby. If there is a processing system that interprets iSeq, it may be possible to run Ruby on other than MRI's supporting platform. Java is activ
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Team - RubyKaigi 2019
RubyKaigi2023
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi
RubyKaigi 2018, 5/31...6/2, Sendai, Miyagi, Japan #rubykaigi