To be honest, you are replacing one set of problems with another. The rationale about configuration does not make a lot of sense either, better you learn how to do things right than what seems easier.

I haven't played with shares for a long time. But if I remember only one node can write to a file at once. That's also to say if file read/write performance will be any good for this use case.

NFS or Samba servers have their own issues with attack surface.

Please rethink your idea please.