Don't make the REPL the initial controller on macOS
<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" initialViewController="Y5I-hh-BBr">
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.CocoaDFRPlugin" version="14460.1"/>
<plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14460.31"/>
