Turns out, a Proxmox and TrueNAS hybrid storage server works exceedingly well ...
[Michael Lynch] recently replaced his Synology NAS with a self-built solution built on ZFS, a filesystem with a neat feature: the ability to back up encrypted data without having to decrypt it first.
TrueNAS taught me that RAID protects against drive failure, but snapshots are what make a NAS feel safer in everyday use.