On the mac, there is a utility that opens a terminal and sets the environment variables for houdini.
On my mac it is:
/Applications/Houdini/Houdini16.5.473/Utilities/Houdini Terminal 16.5.473.app

However, it always opens 2 terminals, instead of one.
Is there any way this can be fixed so that it only opens one window?
I don't know if this is related, but this thread says there is a known issue with apple scripts opening 2 terminals instead of one. With a suggested fix.
https://apple.stackexchange.com/questions/224925/script-opens-two-terminal-windows [apple.stackexchange.com]

thanks