Soutaro Matsumoto

#type-checking

#static-typing

#ruby

#rbs

#steep

#duck-typing

#ruby-3

#type-annotations

#dynamic-typing

#programming

#metaprogramming

#developer-tools

#programming-languages

#ruby-programming

#integrated-development-environment-ide

#language-server-protocol-lsp

#developer-experience-dx

#type-inference

#programming-language-design

#ruby-on-rails

#abstract-syntax-tree-ast

#software-development

#rubykaigi

#parsing

#error-handling

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