I recommend doing passwords via:

`` echo

read -p "Please enter node number: " NODE echo -e "\n"

read -sp "Please enter passphrase: " PASS echo -e "\n" read -sp "Please re-enter passphrase: " REPASS echo -e "\n"

if [ "PASS" != "REPASS" ]; then echo "Passphrases did not match!" exit 1 else echo -n $PASS > /tmp/mykeyfile fi ``

to avoid mismatch issues.

-O devices=off

You're going to need devices somewhere.

relatime=off

You may also want that.

zfs create -o mountpoint=none rpool/safe

If this isn't mounted, you won't get atomic snapshots of that tree given the current system in nixos.

Used the password suggestion, set devices=on explicitly (it's the default), set relatime=off, mounted rpool/safe to /mounted-for-the-purpose-of-auto-snapshot

Set end for zfs partition to 100%