Installation of TrueNAS isn't too bad. It's the setup that's a challenge! Mainly, getting Windows to recognize the SMB setup has been an exercise in frustration.
Otherwise, one issue is the dead space on the "boot pool" (forum post)--while the pool can be expanded, not sure what to use it for. Containers, perhaps?
The other thing is, perhaps for reliability I should mirror two 1TB drives (flash...) and have a partition on those drives as a separate vdev (forum post). It's a bit overwhelming to understand how to set up a good configuration.
Also, Youtuber "Raid Owl" has some videos on setting up NAS appliances.
