Kojo App Warnings
The first time you run the Kojo app, you will see a warning similar to this:
Click on Open to allow Kojo to proceed.
If you have the Firewall (Apple menu → System Preferences → Security & Privacy → Firewall) enabled on your machine, you will also see a warning similar to this:
This is because Kojo uses local network sockets to control multiple instances. Click on Allow to proceed.