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Hitoshi Hasumi

Creator of PicoRuby and PRK Firmware. Maintainer of ruby/irb, ruby/reline, and mrubyc/mrubyc.

hasumikin.com/about
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#microcontroller
#embedded-systems
#ruby
#picoruby
#mruby
#iot
#firmware
#ruby-vm
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Attended as Speaker

EuRuKo 2025
EuRuKo 2025
Viana do Castelo, Portugal
September 18-19, 2025
RubyConf Taiwan x COSCUP 2025
RubyConf Taiwan x COSCUP 2025
Taipei, Taiwan
August 09-10, 2025
RubyKaigi 2025
RubyKaigi 2025
Matsuyama, Ehime, Japan
April 16-18, 2025
EuRuKo 2024
EuRuKo 2024
Sarajevo, Bosnia and Herzegovina
September 11-13, 2024
RubyKaigi 2024
RubyKaigi 2024
Naha, Okinawa, Japan
May 15-17, 2024
RubyConf Taiwan 2023
RubyConf Taiwan 2023
Taipai, Taiwan
December 15-16, 2023
RubyConf TH 2023
RubyConf TH 2023
Bangkok, Thailand
October 06-07, 2023
EuRuKo 2023
EuRuKo 2023
Vilnius, Lithuania
September 21-23, 2023
RubyKaigi 2023
RubyKaigi 2023
Nagano, Japan
May 11-13, 2023
RubyConf 2021
RubyConf 2021
Denver, CO
November 08-10, 2022
RubyKaigi 2021 Takeout
RubyKaigi 2021 Takeout
online
September 09-11, 2021
RubyKaigi 2020 Takeout
RubyKaigi 2020 Takeout
online
September 04-05, 2020
RubyConf 2019
RubyConf 2019
Nashville, TN
November 18-20, 2019
RubyKaigi 2019
RubyKaigi 2019
Fukuoka, Japan
April 18-20, 2019
RubyKaigi 2018
RubyKaigi 2018
Sendai, Miyagi, Japan
May 31 - June 02, 2018