I would like to be able to compile Volt templates and to have the file names stored as a relative path in the cache directory. This is necessary to allow a framework to be compiled on the development environment and then deployed to the production server.
Additionally I want to be able to copy a folder say version '1.3.2' to '1.3.3' and to tweak some JS or CSS on a live environment without needing to redeploy from the development environment. This sort of flexibility has come in very handy in the past when large live real data sets cause unexpected errors. It can be useful for tweaking themes with a client on the phone and reloading their browser.
So it seems that at the moment that the way Volt is setup this will not be possible and I'm not excited about having anything that is capable of executing PHP code to be writable by the web server. I suppose that I could make my CLI Site Copy script execute a volt recompile but I'd rather not have to do that step.