As far as I can see the worker uses hard-links (from files in the CAS) to prepare the execution environment (sandbox) to run an action. I notice in my project that this preparation can be a big I/O bottleneck, therefore I use a sandbox in a tmpfs (RAM) which is significantly faster. Unfortunately, when using hard-links, the sandbox must be on the same file system as the CAS (as also documented) which is obviously not possible when we want to use a tmpfs. Would it be possible to e.g. use sym-links instead of hard-links?