That is actually a very interesting idea. While I am not necessarily interested in some sort of build system for a paper, but being able to figure out which plo

That is actually a very interesting idea. While I am not necessarily interested in some sort of build system for a paper, but being able to figure out which plots need to be regenerated when some data file or some equation is changed is useful. For this, being able to encode the version of the script and all the data files used in creating of the plot would be valuable.