I have the main volume for images in a zpool with two SSDs in a raid-1 configuration. I also have a daily cronjob that makes an encrypted off-site backup with Borg. I've also got healthchecks.io jobs setup so that if the zpool becomes unhealthy, the backups fail, or anything stops, then both me and my partner get alerted.

My partner isn't very technical, but having an Immich server we are both invested in has gotten her much more interested in self hosting and the skills to do it.