On September 29, 2016, I started working on adding (Flow) types to the Ember app I had been working on since the start of the year. Throughout the rest of the year I worked on adding some basic Flow types to our app and for Ember. For my last commit in 2016, I switched us to TypeScript and began the rest of the long journey to fully type-checking our app. In early 2018, we made it to “the app type-checks”… in the loosest strictness settings. And as of 6pm today—September 5, 2018, almo...
