Damn that is a nice setup lol. I only built mine a couple years ago and only managed to get 5x 16TB drives at $169 each. I have 4 in the system and one cold spare.
I have tended to avoid cli on TrueNas mostly out of fear that I’ll mess something up and I’ll be too lazy to fix it. That was my main motivation behind switching to Dockge for containers, it even shows apps running through other container management systems, although you can’t manage them through there.
Yeah I am pretty comfortable with CLI on linux, but I just never bothered with TrueNas. Also I am lazy and once something works I just leave it there even when I could improve it lol.
I have been meaning to venture into Proxmox as well but I don’t have the time or spare parts to get a new machine running atm. Maybe someday I’ll get around to it though as it seems like a nice playground without breaking things.