I felt the exact same way. So many comments online told me that running Arch as a home NAS was insane, but after the Jupiter Broadcasting guys did it without much issue, I decided to give it a go and was pleasantly surprised. I think if most of your stuff is running in Docker and you have BTRFS snapshots for your root filesystem, the system’s pretty much bullet proof. The rolling updates also mean you’ll never have huge upgrade cycles that are a pain in the ass to migrate to. You’re always just dealing with small manageable fires instead of large complicated ones and that’s a plus.