macOS: the first time, macOS blocks the app until you allow it. You only do this once
per download.
- Unzip the download and open the folder.
- Double-click
run.command. When macOS says it could not verify the file,
click Done.
- Open System Settings > Privacy & Security, scroll down to Security,
click Open Anyway next to
run.command, and confirm.
- Double-click
run.command again. It opens the app. A Terminal window appears
while it does, and you can close it.
From then on, double-click the
.app in that folder. Keep it there, because it
starts the program beside it. To make a shortcut, drag it to the Dock.