Schedule

	Main Hall #rubykaigiA	Hagi #rubykaigiB	Tachibana #rubykaigiC
09:30 - 10:30	Door Open
10:30 - 11:30	JA Keynote Keynote Yukihiro "Matz" Matsumoto @yukihiro_matz
11:30 - 13:00	Lunch
13:00 - 13:40	JA Analyzing and Reducing Ruby Memory Usage Aaron Patterson @tenderlove	JA bancor: Token economy made with Ruby Yuta Kurotaki @kurotaky	EN Karafka - Ruby Framework for Event Driven Architecture Maciej Mensfeld @maciejmensfeld
13:50 - 14:30	JA Deep Learning Programming on Ruby Kenta Murata @mrkn Yusaku Hatanaka @hatappi	EN A practical type system for Ruby at Stripe. Dmitry Petrashko @DarkDimius	JA Hacking Ruby Syntax in Ruby joker1007 @joker1007 Satoshi "moris" Tagomori @tagomoris
14:40 - 15:20	EN All About RuboCop Bozhidar Batsov @bbatsov	EN TTY - Ruby alchemist’s secret potion Piotr Murach @piotr_murach	EN What would your own version of Ruby look like? Stan Lo @_st0012
15:20 - 15:50	Afternoon Break
15:50 - 16:30	JA Fast Numerical Computing and Deep Learning in Ruby with Cumo Naotoshi Seo @sonots	EN Kiba 2 - Past, present & future of data processing with Ruby Thibaut Barrère @thibaut_barrere	JA RubyGems 3 & 4 SHIBATA Hiroshi @hsbt
16:40 - 17:20	JA Exploring Internal Ruby Through C Extensions Emma Haruka Iwao @Yuryu	JA A parser based syntax highlighter Masataka Kuwabara @p_ck_	EN Architecture of hanami applications Anton Davydov @anton_davydov
17:30 - 18:30	Lightning Talks

	Main Hall #rubykaigiA	Hagi #rubykaigiB	Tachibana #rubykaigiC
09:00 - 09:40	Door Open
09:40 - 10:40	JA Keynote Interface Kouhei Sutou @ktou
10:50 - 11:30	EN Controlling Droids™ with mruby & Go Terence Lee @hone02 Chase McCarthy @code0100fun	EN It's Rubies All The Way Down Kirk Haines @wyhaines	EN Faster Apps, No Memory Thrash: Get Your Memory Config Right Noah Gibbs @codefolio
11:30 - 13:00	Lunch
13:00 - 13:40	EN Guild Prototype Koichi Sasada @ko1	JA Improve a Ruby coding style rules and Lint Koichi ITO @koic	EN Journey of a complex gem upgrade Edouard Chin @Edouard-chin
13:50 - 14:30	JA extend your own programming language Masatoshi SEKI @m_seki	EN Scaling Teams using Tests for Productivity and Education Julian Nadeau @jules2689	JA mruby can be more lightweight Yurie Yamane @yuri_at_earth
14:40 - 15:20	EN Ruby Programming with Type Checking Soutaro Matsumoto @soutaro	EN Ferrari Driven Development: superfast Ruby with Rubex Sameer Deshmukh @v0dro	JA Firmware programming with mruby/c Hitoshi HASUMI @hasumon
15:20 - 15:50	Afternoon Break
15:50 - 16:30	JA RNode with code positions Yuichiro Kaneko @spikeolaf	EN Implementing Web Console Genadi Samokovarov @gsamokovarov	EN How Ruby Survive in the Cloud Native World Uchio KONDO @udzura
16:40 - 17:20	JA Type Profiler: An analysis to guess type signatures Yusuke Endoh @mametter	EN One cable to rule them all Vladimir Dementyev @palkan_tula	EN 20k MRuby devices in production Thiago Scalone @scalone
17:30 - 18:30	Ruby Committers vs the World

	Main Hall #rubykaigiA	Hagi #rubykaigiB	Tachibana #rubykaigiC
09:00 - 09:40	Door Open
09:40 - 10:40	EN Keynote Parallel and Thread-Safe Ruby at High-Speed with TruffleRuby Benoit Daloze @eregontp
10:50 - 11:30	JA Grow and Shrink - Dynamically Extending the Ruby VM Stack Martin J. Dürst @duerst Keita Sugiyama @sugiyama-k	JA Ruby code from the stratosphere - SIAF, Sonic Pi, Petal Kenichi Kanai @kn1kn1	JA Reirb: Reborn Irb Keiju Ishitsuka @keiju
11:30 - 13:00	Lunch
13:00 - 13:40	JA The Method JIT Compiler for Ruby 2.6 Takashi Kokubun @k0kubun	EN Devly, a multi-service development environment Eric Hodel @drbrain Ezekiel Templin @ezkl	EN IRB Reboot: Modernize Implementation and Features ITOYANAGI Sakura @aycabta
13:50 - 14:30	JA Build your own tools Shugo Maeda @shugomaeda	EN Deep into Ruby Code Coverage Marc-André Lafortune @malafortune	JA LuaJIT as a Ruby backend. Takeshi Watanabe @take-cheeze
14:40 - 15:20	JA How to get the dark power from iSeq Yoh Osaki @youchan	EN High Performance GPU computing with Ruby Prasun Anand @prasun_anand	JA How happy they became with H2O/mruby, and the future of HTTP i110 @i110 Kazuho Oku @kazuho
15:20 - 15:50	Afternoon Break
15:50 - 16:30	EN Three Ruby performance projects Vladimir Makarov @vnmakarov	EN JRuby 9.2 and Rails 5.x Thomas E Enebo @tom_enebo	JA Design pattern for embedding mruby into middleware MATSUMOTO, Ryosuke @matsumotory
16:40 - 17:40	TRICK FINAL
17:40 - 18:00	Closing