Folder replication on the same server

Hello,

Im new here so sorry if my post is not on the right place.

I would like to have a folder A sync with folder B, so lets say i put a file on folder A i want it to go to folder B with read only, i tried to do it with DFS but i can only do it from Server X to Y and not from server X on X with folder A to B.

Sorry if its a bit confusing, but hope someone gets what i mean by this.

Server version: 2019