First of all, I want to thank the forums for the great information they provide.
I installed ROS2 humble on top of the BBAI64 microSD image and set it up with a bunch of python modules.
I mounted the microSD to my laptop and extracted the image to .img so I can use it on other BBAI64s.
The goal is to integrate ROS2, my code, and a few python modules in a minimal snapshot of eMMC.
I want to modify it so that when I flash my customized image with emmc-flahser, my ROS2, code, and python modules are ready to go.