Zymkey support for Jetson NANO Dev Kit

(I’ll just post some progress I’ve made)
I’m on a Jeton TX2; but also have a nano.

on a fresh TX2:
sudo apt0get install curl
sudo apt-get install -y i2x-tools
down load Jetson GPIO (which is basically a Rpi shell)
install the package via pip :
curl -G https://s3.amazonaws.com/zk-sw-repo/install_zk_sw.sh | sudo bash
Change the GPIO 4 pin to GPIO5 (gpio 398 / board pin 29) or GPIO_GCLK (gpio 396 / board pin 7) - I have no indication if these are directing correctly

I then run a series of i2c bus scans and Jetson_GPIO pin test (I can’t figure out how to permanently set a GPIO pin to an input)

I CAN run the zymkey.py examples and the LED does shift in blinking pattern; but returns : an error.

and twice now I’ve gotten the zymkey into developer mode (slow blink) but cannot figure out what I did, and have not been able to consistently reproduce (when the key is in dev mode, I can call it, and use the python examples.