First try at LinuxCNC

Ok, I got confused by 'replacing the hal file' vs 'modifying the hal file'

Anyway I guess you have seen the schematics in these links:
byte2bot.com/blogs/instructions/setting-...-the-pi-parallel-hat
cdn.shopify.com/s/files/1/0727/8601/8601...ev2.pdf?v=1707368836

I would seem that if you followed that pin out then you would be able to use the gpio mapping used in the example config for a RPi5:
cdn.shopify.com/s/files/1/0727/8601/8601...Pi5.hal?v=1705210460

But again I'm not familiar with that particular piece of hardware.