I have an editable table in my program that saves the changes made to the source file and saves the file to the tmp directory. I am thinking that when I deploy the application to Shiny or SnihyIO, the file and directory are going to be accessed by many users concurrently. The solution I though of consists on naming the source file in a different manner according to the recognized user that makes and saves changes to the source file through the editable table. Also I would need to create a different directory per user. This is going to fill the sever directory with folders and files that we are going to have to remove often. I was wondering if there is a built in way of doing this in Shiny.