ReactorKit Meetup Japan 18/06/28
https://www.wantedly.com/companies/wantedly/post_articles/127635
English ver: https://speakerdeck.com/yusuga/practical-application-of-reactorkit
次: iOSアプリのアーキテクチャについて考えてたどり着いた結論
https://speakerdeck.com/yusuga/final-conclusion-of-the-ios-architecture