If you're running Linux with ZFS, make sure to have a ZFS-enabled live medium available. The Arch ISO is easy to modify. Various variants with ZFS exist around the net. I believe Ubuntu also ships with ZFS nowadays. I think NixOS too? Not entirely sure, it's been a while.
If you go custom, you can also add drivers/firmware for whatever exotic hardware you have!
Nothing to worry about except network access, of course, which was the issue in this case. Much better to have it not with ZFS support already enabled.
Indeed (I guess you meant "much better to have it with ZFS support already enabled"). I simply mentioned this for people unaware of the existence of this script who don't have network issues with the Arch ISOs.
If you go custom, you can also add drivers/firmware for whatever exotic hardware you have!