RAK5146 drivers for Ubuntu 22.04 for ARM and non automated setup for ChirpStack

I purchased some RAK5146 kits with the PI Hat. I am interested in running these with Ubuntu 22.04 with latest version of ChirpStack (or whatever your group recommends). Provided the above, this means I would like more in depth instructions on setup, configuration of the drivers, and ChirpStack installation if at all possible.

Thanks in advance for your help.