TrueNAS. It’s free, has a larger app store than UNRAID and has a much more mature deployment of ZFS.

Then you might not want windows cause Windows forces updates on you whether you want them or not and break things. Linux will happily wait for you to forget for so long it breaks because the target API doesn’t accept your old ass code anymore. At least in Linux as long as I don’t forget I’m good. I sometimes forget

Wow what a great idea, I wonder why nobody else has ever thought about it.