I hear you and I’m all for diving in—breaking things is half the fun.
If you’re after something straightforward for NAS software, another thing to consider would be vanilla Debian with Cockpit and 45Drives’ excellent filesharing plug in. I like the combo quite a bit.
Enjoy the journey!


I’m sure you already know this, but do note that with Z2 compared to mirrors, you should expect a decrease in performance and an increase in rebuild times in the event of a drive failure. Not saying don’t do it, but make sure the perceived benefits are worth the trade offs.
Here’s some more info on the topic: https://jrs-s.net/2015/02/06/zfs-you-should-use-mirror-vdevs-not-raidz/.