Does Regatta require a local disk sized for the entire file to support random writes? One problem I’ve seen is that we have set up instances with a modest local disk but then work with files for which we need to pull the whole file into a local cache modify some parts and then push the full result back into s3. It would be helpful to have a way to work with s3 as though it were posix without having to match the local disk size to the largest file we might need to process.