etc/fstab is my hint.

Basically I had to make a folder in mnt and then add this upcoming line manually. Fun fact! It doesn't like spaces, thus 040POOL. Idk why but an underscore didn't work either. I didn't know this at first and wanted to slam my face into my keyboard by the time I got it working.

Confirm it works with terminal command:

sudo mount -a

Then reboot and see if it automounted:

mount | grep nas

"nas" is whatever you called the mnt subdirectory you created.

This is a very fucking stupid process vs right clicking a folder on my NAS in Windows and mapping a network drive so it gets a storage device letter. However, it's fun to rant about.