RubyKaigi Takeout 2021
https://gyazo.com/c8c04e79aa5c7fbf6028a8265ecf2043
https://rubykaigi.org/2021-takeout, #RubyKaigi
https://rubykaigi.org/2021-takeout/schedule
#2021-09-09, RubyKaigi Takeout 2021 Day1
#2021-09-10, RubyKaigi Takeout 2021 Day2
#2021-09-11, RubyKaigi Takeout 2021 Day3
#kaigieffect
Bug #18159: Integrate functionality of dead_end gem into Ruby - Ruby master - Ruby Issue Tracking System
https://bugs.ruby-lang.org/issues/18159
https://hackmd.io/Mmse5ybASq-6c2kQoJQdMQ
Feature #14579: Hash value omission - Ruby master - Ruby Issue Tracking System
https://bugs.ruby-lang.org/issues/14579