Interesting how this works! Indeed, it's super confusing to have multiple Terminal instances open. However, if the second instance of the Terminal could close itself after all tabs are closed, it would be a perfect fit for React Native's use case. For example, an argument for Terminal that triggers: -(BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSapplication*)sender { return gQuitIfNoWindowLeft ? YES : NO; } Terminal.app --quit-automatically or something. By the way, thank you so much for every answer you give. Your help is always appreciated, eskimo.

I would love to know whether this issue is related to the issue I created yesterday: https://developer.apple.com/forums/thread/710523