• Open ConductrEnter.xcodeproj in Xcode
• Make sure ConductrEnter Debug or ConductrEnter Release scheme is selected
• Press Command+B if you just want to build it, or Command+R or the Play button to build and execute

ConductrEnter is expected to run in multidisplay (2 screens). To be able to test it on Mac:

• Go to System Preferences
• Go to Mission Control
• Uncheck Displays have separate Spaces if it's checked