I’m working on this currently myself. Seems as good a thing to do with a packet node as any. I’m following in the footsteps here:
https://www.richardosgood.com/posts/how-to-setup-a-raspberry...
https://www.kevinhooke.com/2021/04/12/running-an-ax25-netrom...
I’ll be surprised if anyone ever hits my node but me. Fun anyway!