If you already have a ZFS pool, I'd probably personally just throw on zfsbootmenu and a ZFS-root Alpine install. But, this is cooler and does have advantages:)

> root/etc/ssh/ssh_host_ed25519_key and root/etc/ssh/ssh_host_ed25519_key.pub and root/root/.ssh/authorized_keys for obvious reasons.

What are the _obvious_ reasons for the NAS root to have an SSH key?

Previously -> https://news.ycombinator.com/item?id=42428722