Table of Contents Overview In the Beginning Final Totals Writing in Chicken Scheme Delusions of Sharability Crystal Lang Final Totals Writing in Crystal Fast-Forward… And then Raku Final Totals Writing in Raku Reflecting on the rewrites If you liked that… P.S. What about the email app with the same name? Overview “Hey!” started as an Interruption Tracker, and now supports Time Tracking too. It has been through 3 iterations: Chicken Scheme, Crystal, and now Raku.