Only two options. The phones in-built backup manager, smart switch works well. That’s not what you want though. Android emulator, replicate as near as possible. Problem is I fear you’ll need that number to be kept activated and whatever cloud service on the phone to keep going.

Had 2x 10000rpm ones in raid in the day playing wow…

Thanks. Learning quite a lot since I had the idea to do it with my old machine.

How will truenas limit me?

I’ve tried Ubuntu before, mint and debian. I prefer their security and interface. I don’t want the hassle of Windows being on that machine with constant updates and all that useless crap that comes with it.