Slightly off-topic but if anyone has any resources on performing a clean (preferably, Ubuntu or Arch) Linux "root on ZFS" installation, please share.

I followed the instructions for Ubuntu 16.04 on the github.com/zfsonlinux wiki [0] a while back and (encountered a few little issues along the way but) got it working, although I experienced some MAJOR performance problems so something wasn't quite right (exact same hardware is blazing fast when running FreeBSD). I can't imagine it was just "how things are" with regard to the current state of ZFS on Linux (or Ubuntu specifically) -- it was like someone hit the laptop's "pause" button a couple of times per minute.

[0]: https://github.com/zfsonlinux/zfs/wiki/Ubuntu-16.04-Root-on-...