A friend advised me to check/update everything and provided the commands. I connected a keyboard, mouse, and monitor to the mini pc and updated with these commands:
On the mini pc I was able to launch KStars and start Ekos. However, I kept getting a message the the ZWO CCD driver crashed each time I tried to load it.
On the iMac in the office, no change. Still see all of the drivers in the Indi Control Panel except the ZWO CCD driver.