Our dialogue tool, Yarn Spinner for Godot, has been built on C#, and we love it. Godot's C# support is fantastic. But we wanted every Godot developer to have great dialogue, so we rebuilt the whole runtime in pure GDScript too. Now the same Yarn script runs identically in both. This talk is a joyful tour of how we did it, what it taught us about GDScript, and everything else we learned along the way.