Soutaro is indeed a code member of the Ruby team, he also happens to work at Square. Soutaro is also one of the main contributors to RBS and helped define that standard.
He was going to keynote on this at RubyKaigi this year until it was cancelled, and had a talk at RubyConf as well on this.
He was going to keynote on this at RubyKaigi this year until it was cancelled, and had a talk at RubyConf as well on this.