Thanks for the quick reply! I solved a majority of my issues by changing the directory in Terminal to the Supermodel folder. Now the crosshair responds to my trackpad and I don't get the NVRAM error.
As for running -config-inputs it doesn't seem to respond to the XBOX controller. If I run supermodel -print-inputs I can see the controller under the joystick options:

- Screen Shot 2020-11-05 at 6.26.35 PM.png (60.73 KiB) Viewed 226 times
But when I run -config-inputs and select the blank Supermodel window, it doesn't respond to anything I press on the controller.

- Screen Shot 2020-11-05 at 6.27.58 PM.jpg (185.03 KiB) Viewed 226 times
Also, I had a look at the latest build of Supermodel - building from the SVN source code directly is a bit over my head, but I did notice there was a Games.xml in Config that I did not have in 0.2a where <input type="analog_gun1" /> is specified for The Lost World. Would I need to copy this xml to my 0.2a build and specify <input type="joystick1" />
So at this point I can get The Lost World going and use the trackpad/keyboard for play, but just can't figure out how to select/configure the XBOX controller within Terminal.