Have multiple copies of the data. Use snapshots, they don’t get encrypted by a ransomware because they are read only and can’t be accessed via samba or nfs. It’s only a problem when the attacker gets root access to your NAS. Use a cloud provider like backblaze and backup your data encrypted. If you are really scared that ransomeware data will overwrite your backups use 3-2-1 and Grandfather-father-son backup strategy. But all this comes at a cost.

It all started with a raspberry pi… i wanted to host game servers for me and my friends without having to pay for them. This expanded to plex for movies and bookstack for dnd notes. Now I have so many services that I have to look it up to give you a full list.