@h3robotics ,
Yes you should be able to test the Hadron on J8 using the instructions from the docs page (https://docs.modalai.com/voxl2-hadron/) -- just make sure you use Boson sensormodule 4 and ov64b sensormodule 5 (and camera IDs will still be 0 and 1 respectively, if there are no other cameras attached / detected).
At this point you do not need to build a custom kernel, just need to use kernel variant 1 because it enables independent camera support on J8 which is needed for Hadron. Please note that you would not be able to use our standard ucoax camera on J8U because the camera reset signal is still not correctly patched through to J8 (which would require a kernel modificaiton). But in Hadron use case, camera reset is not used (both the IR and RGB camera are always on, so it happens to work out ).
I agree, it may be more convenient for you to switch to using the M0173 camera front end, so you can use a single kernel variant and also this would be a more future-proof approach.
Alex